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-rw-r--r--fs/nfs/Kconfig9
-rw-r--r--fs/nfs/callback.c214
-rw-r--r--fs/nfs/callback.h68
-rw-r--r--fs/nfs/callback_proc.c127
-rw-r--r--fs/nfs/callback_xdr.c280
-rw-r--r--fs/nfs/client.c183
-rw-r--r--fs/nfs/direct.c9
-rw-r--r--fs/nfs/internal.h62
-rw-r--r--fs/nfs/nfs4_fs.h37
-rw-r--r--fs/nfs/nfs4proc.c1287
-rw-r--r--fs/nfs/nfs4renewd.c6
-rw-r--r--fs/nfs/nfs4state.c153
-rw-r--r--fs/nfs/nfs4xdr.c1072
-rw-r--r--fs/nfs/read.c33
-rw-r--r--fs/nfs/super.c14
-rw-r--r--fs/nfs/unlink.c20
-rw-r--r--fs/nfs/write.c31
17 files changed, 3308 insertions, 297 deletions
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index e67f3ec0773..5d6d6f41593 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -74,6 +74,15 @@ config NFS_V4
If unsure, say N.
+config NFS_V4_1
+ bool "NFS client support for NFSv4.1 (DEVELOPER ONLY)"
+ depends on NFS_V4 && EXPERIMENTAL
+ help
+ This option enables support for minor version 1 of the NFSv4 protocol
+ (draft-ietf-nfsv4-minorversion1) in the kernel's NFS client.
+
+ Unless you're an NFS developer, say N.
+
config ROOT_NFS
bool "Root file system on NFS"
depends on NFS_FS=y && IP_PNP
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 6e3bd42c21c..7f604c7941f 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -17,6 +17,9 @@
#include <linux/freezer.h>
#include <linux/kthread.h>
#include <linux/sunrpc/svcauth_gss.h>
+#if defined(CONFIG_NFS_V4_1)
+#include <linux/sunrpc/bc_xprt.h>
+#endif
#include <net/inet_sock.h>
@@ -28,11 +31,12 @@
struct nfs_callback_data {
unsigned int users;
+ struct svc_serv *serv;
struct svc_rqst *rqst;
struct task_struct *task;
};
-static struct nfs_callback_data nfs_callback_info;
+static struct nfs_callback_data nfs_callback_info[NFS4_MAX_MINOR_VERSION + 1];
static DEFINE_MUTEX(nfs_callback_mutex);
static struct svc_program nfs4_callback_program;
@@ -56,10 +60,10 @@ module_param_call(callback_tcpport, param_set_port, param_get_int,
&nfs_callback_set_tcpport, 0644);
/*
- * This is the callback kernel thread.
+ * This is the NFSv4 callback kernel thread.
*/
static int
-nfs_callback_svc(void *vrqstp)
+nfs4_callback_svc(void *vrqstp)
{
int err, preverr = 0;
struct svc_rqst *rqstp = vrqstp;
@@ -97,20 +101,12 @@ nfs_callback_svc(void *vrqstp)
}
/*
- * Bring up the callback thread if it is not already up.
+ * Prepare to bring up the NFSv4 callback service
*/
-int nfs_callback_up(void)
+struct svc_rqst *
+nfs4_callback_up(struct svc_serv *serv)
{
- struct svc_serv *serv = NULL;
- int ret = 0;
-
- mutex_lock(&nfs_callback_mutex);
- if (nfs_callback_info.users++ || nfs_callback_info.task != NULL)
- goto out;
- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
- ret = -ENOMEM;
- if (!serv)
- goto out_err;
+ int ret;
ret = svc_create_xprt(serv, "tcp", PF_INET,
nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
@@ -133,23 +129,168 @@ int nfs_callback_up(void)
goto out_err;
#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
- nfs_callback_info.rqst = svc_prepare_thread(serv, &serv->sv_pools[0]);
- if (IS_ERR(nfs_callback_info.rqst)) {
- ret = PTR_ERR(nfs_callback_info.rqst);
- nfs_callback_info.rqst = NULL;
+ return svc_prepare_thread(serv, &serv->sv_pools[0]);
+
+out_err:
+ if (ret == 0)
+ ret = -ENOMEM;
+ return ERR_PTR(ret);
+}
+
+#if defined(CONFIG_NFS_V4_1)
+/*
+ * The callback service for NFSv4.1 callbacks
+ */
+static int
+nfs41_callback_svc(void *vrqstp)
+{
+ struct svc_rqst *rqstp = vrqstp;
+ struct svc_serv *serv = rqstp->rq_server;
+ struct rpc_rqst *req;
+ int error;
+ DEFINE_WAIT(wq);
+
+ set_freezable();
+
+ /*
+ * FIXME: do we really need to run this under the BKL? If so, please
+ * add a comment about what it's intended to protect.
+ */
+ lock_kernel();
+ while (!kthread_should_stop()) {
+ prepare_to_wait(&serv->sv_cb_waitq, &wq, TASK_INTERRUPTIBLE);
+ spin_lock_bh(&serv->sv_cb_lock);
+ if (!list_empty(&serv->sv_cb_list)) {
+ req = list_first_entry(&serv->sv_cb_list,
+ struct rpc_rqst, rq_bc_list);
+ list_del(&req->rq_bc_list);
+ spin_unlock_bh(&serv->sv_cb_lock);
+ dprintk("Invoking bc_svc_process()\n");
+ error = bc_svc_process(serv, req, rqstp);
+ dprintk("bc_svc_process() returned w/ error code= %d\n",
+ error);
+ } else {
+ spin_unlock_bh(&serv->sv_cb_lock);
+ schedule();
+ }
+ finish_wait(&serv->sv_cb_waitq, &wq);
+ }
+ unlock_kernel();
+ return 0;
+}
+
+/*
+ * Bring up the NFSv4.1 callback service
+ */
+struct svc_rqst *
+nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
+{
+ struct svc_xprt *bc_xprt;
+ struct svc_rqst *rqstp = ERR_PTR(-ENOMEM);
+
+ dprintk("--> %s\n", __func__);
+ /* Create a svc_sock for the service */
+ bc_xprt = svc_sock_create(serv, xprt->prot);
+ if (!bc_xprt)
+ goto out;
+
+ /*
+ * Save the svc_serv in the transport so that it can
+ * be referenced when the session backchannel is initialized
+ */
+ serv->bc_xprt = bc_xprt;
+ xprt->bc_serv = serv;
+
+ INIT_LIST_HEAD(&serv->sv_cb_list);
+ spin_lock_init(&serv->sv_cb_lock);
+ init_waitqueue_head(&serv->sv_cb_waitq);
+ rqstp = svc_prepare_thread(serv, &serv->sv_pools[0]);
+ if (IS_ERR(rqstp))
+ svc_sock_destroy(bc_xprt);
+out:
+ dprintk("--> %s return %p\n", __func__, rqstp);
+ return rqstp;
+}
+
+static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
+ struct svc_serv *serv, struct rpc_xprt *xprt,
+ struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
+{
+ if (minorversion) {
+ *rqstpp = nfs41_callback_up(serv, xprt);
+ *callback_svc = nfs41_callback_svc;
+ }
+ return minorversion;
+}
+
+static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
+ struct nfs_callback_data *cb_info)
+{
+ if (minorversion)
+ xprt->bc_serv = cb_info->serv;
+}
+#else
+static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
+ struct svc_serv *serv, struct rpc_xprt *xprt,
+ struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
+{
+ return 0;
+}
+
+static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
+ struct nfs_callback_data *cb_info)
+{
+}
+#endif /* CONFIG_NFS_V4_1 */
+
+/*
+ * Bring up the callback thread if it is not already up.
+ */
+int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
+{
+ struct svc_serv *serv = NULL;
+ struct svc_rqst *rqstp;
+ int (*callback_svc)(void *vrqstp);
+ struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
+ char svc_name[12];
+ int ret = 0;
+ int minorversion_setup;
+
+ mutex_lock(&nfs_callback_mutex);
+ if (cb_info->users++ || cb_info->task != NULL) {
+ nfs_callback_bc_serv(minorversion, xprt, cb_info);
+ goto out;
+ }
+ serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
+ if (!serv) {
+ ret = -ENOMEM;
+ goto out_err;
+ }
+
+ minorversion_setup = nfs_minorversion_callback_svc_setup(minorversion,
+ serv, xprt, &rqstp, &callback_svc);
+ if (!minorversion_setup) {
+ /* v4.0 callback setup */
+ rqstp = nfs4_callback_up(serv);
+ callback_svc = nfs4_callback_svc;
+ }
+
+ if (IS_ERR(rqstp)) {
+ ret = PTR_ERR(rqstp);
goto out_err;
}
svc_sock_update_bufs(serv);
- nfs_callback_info.task = kthread_run(nfs_callback_svc,
- nfs_callback_info.rqst,
- "nfsv4-svc");
- if (IS_ERR(nfs_callback_info.task)) {
- ret = PTR_ERR(nfs_callback_info.task);
- svc_exit_thread(nfs_callback_info.rqst);
- nfs_callback_info.rqst = NULL;
- nfs_callback_info.task = NULL;
+ sprintf(svc_name, "nfsv4.%u-svc", minorversion);
+ cb_info->serv = serv;
+ cb_info->rqst = rqstp;
+ cb_info->task = kthread_run(callback_svc, cb_info->rqst, svc_name);
+ if (IS_ERR(cb_info->task)) {
+ ret = PTR_ERR(cb_info->task);
+ svc_exit_thread(cb_info->rqst);
+ cb_info->rqst = NULL;
+ cb_info->task = NULL;
goto out_err;
}
out:
@@ -166,22 +307,25 @@ out:
out_err:
dprintk("NFS: Couldn't create callback socket or server thread; "
"err = %d\n", ret);
- nfs_callback_info.users--;
+ cb_info->users--;
goto out;
}
/*
* Kill the callback thread if it's no longer being used.
*/
-void nfs_callback_down(void)
+void nfs_callback_down(int minorversion)
{
+ struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
+
mutex_lock(&nfs_callback_mutex);
- nfs_callback_info.users--;
- if (nfs_callback_info.users == 0 && nfs_callback_info.task != NULL) {
- kthread_stop(nfs_callback_info.task);
- svc_exit_thread(nfs_callback_info.rqst);
- nfs_callback_info.rqst = NULL;
- nfs_callback_info.task = NULL;
+ cb_info->users--;
+ if (cb_info->users == 0 && cb_info->task != NULL) {
+ kthread_stop(cb_info->task);
+ svc_exit_thread(cb_info->rqst);
+ cb_info->serv = NULL;
+ cb_info->rqst = NULL;
+ cb_info->task = NULL;
}
mutex_unlock(&nfs_callback_mutex);
}
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index e110e286a26..07baa8254ca 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -20,13 +20,24 @@ enum nfs4_callback_procnum {
enum nfs4_callback_opnum {
OP_CB_GETATTR = 3,
OP_CB_RECALL = 4,
+/* Callback operations new to NFSv4.1 */
+ OP_CB_LAYOUTRECALL = 5,
+ OP_CB_NOTIFY = 6,
+ OP_CB_PUSH_DELEG = 7,
+ OP_CB_RECALL_ANY = 8,
+ OP_CB_RECALLABLE_OBJ_AVAIL = 9,
+ OP_CB_RECALL_SLOT = 10,
+ OP_CB_SEQUENCE = 11,
+ OP_CB_WANTS_CANCELLED = 12,
+ OP_CB_NOTIFY_LOCK = 13,
+ OP_CB_NOTIFY_DEVICEID = 14,
OP_CB_ILLEGAL = 10044,
};
struct cb_compound_hdr_arg {
unsigned int taglen;
const char *tag;
- unsigned int callback_ident;
+ unsigned int minorversion;
unsigned nops;
};
@@ -59,16 +70,59 @@ struct cb_recallargs {
uint32_t truncate;
};
+#if defined(CONFIG_NFS_V4_1)
+
+struct referring_call {
+ uint32_t rc_sequenceid;
+ uint32_t rc_slotid;
+};
+
+struct referring_call_list {
+ struct nfs4_sessionid rcl_sessionid;
+ uint32_t rcl_nrefcalls;
+ struct referring_call *rcl_refcalls;
+};
+
+struct cb_sequenceargs {
+ struct sockaddr *csa_addr;
+ struct nfs4_sessionid csa_sessionid;
+ uint32_t csa_sequenceid;
+ uint32_t csa_slotid;
+ uint32_t csa_highestslotid;
+ uint32_t csa_cachethis;
+ uint32_t csa_nrclists;
+ struct referring_call_list *csa_rclists;
+};
+
+struct cb_sequenceres {
+ __be32 csr_status;
+ struct nfs4_sessionid csr_sessionid;
+ uint32_t csr_sequenceid;
+ uint32_t csr_slotid;
+ uint32_t csr_highestslotid;
+ uint32_t csr_target_highestslotid;
+};
+
+extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
+ struct cb_sequenceres *res);
+
+#endif /* CONFIG_NFS_V4_1 */
+
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy);
#ifdef CONFIG_NFS_V4
-extern int nfs_callback_up(void);
-extern void nfs_callback_down(void);
-#else
-#define nfs_callback_up() (0)
-#define nfs_callback_down() do {} while(0)
-#endif
+extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
+extern void nfs_callback_down(int minorversion);
+#endif /* CONFIG_NFS_V4 */
+
+/*
+ * nfs41: Callbacks are expected to not cause substantial latency,
+ * so we limit their concurrency to 1 by setting up the maximum number
+ * of slots for the backchannel.
+ */
+#define NFS41_BC_MIN_CALLBACKS 1
+#define NFS41_BC_MAX_CALLBACKS 1
extern unsigned int nfs_callback_set_tcpport;
extern unsigned short nfs_callback_tcpport;
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index f7e83e23cf9..b7da1f54da6 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -101,3 +101,130 @@ out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res));
return res;
}
+
+#if defined(CONFIG_NFS_V4_1)
+
+/*
+ * Validate the sequenceID sent by the server.
+ * Return success if the sequenceID is one more than what we last saw on
+ * this slot, accounting for wraparound. Increments the slot's sequence.
+ *
+ * We don't yet implement a duplicate request cache, so at this time
+ * we will log replays, and process them as if we had not seen them before,
+ * but we don't bump the sequence in the slot. Not too worried about it,
+ * since we only currently implement idempotent callbacks anyway.
+ *
+ * We have a single slot backchannel at this time, so we don't bother
+ * checking the used_slots bit array on the table. The lower layer guarantees
+ * a single outstanding callback request at a time.
+ */
+static int
+validate_seqid(struct nfs4_slot_table *tbl, u32 slotid, u32 seqid)
+{
+ struct nfs4_slot *slot;
+
+ dprintk("%s enter. slotid %d seqid %d\n",
+ __func__, slotid, seqid);
+
+ if (slotid > NFS41_BC_MAX_CALLBACKS)
+ return htonl(NFS4ERR_BADSLOT);
+
+ slot = tbl->slots + slotid;
+ dprintk("%s slot table seqid: %d\n", __func__, slot->seq_nr);
+
+ /* Normal */
+ if (likely(seqid == slot->seq_nr + 1)) {
+ slot->seq_nr++;
+ return htonl(NFS4_OK);
+ }
+
+ /* Replay */
+ if (seqid == slot->seq_nr) {
+ dprintk("%s seqid %d is a replay - no DRC available\n",
+ __func__, seqid);
+ return htonl(NFS4_OK);
+ }
+
+ /* Wraparound */
+ if (seqid == 1 && (slot->seq_nr + 1) == 0) {
+ slot->seq_nr = 1;
+ return htonl(NFS4_OK);
+ }
+
+ /* Misordered request */
+ return htonl(NFS4ERR_SEQ_MISORDERED);
+}
+
+/*
+ * Returns a pointer to a held 'struct nfs_client' that matches the server's
+ * address, major version number, and session ID. It is the caller's
+ * responsibility to release the returned reference.
+ *
+ * Returns NULL if there are no connections with sessions, or if no session
+ * matches the one of interest.
+ */
+ static struct nfs_client *find_client_with_session(
+ const struct sockaddr *addr, u32 nfsversion,
+ struct nfs4_sessionid *sessionid)
+{
+ struct nfs_client *clp;
+
+ clp = nfs_find_client(addr, 4);
+ if (clp == NULL)
+ return NULL;
+
+ do {
+ struct nfs_client *prev = clp;
+
+ if (clp->cl_session != NULL) {
+ if (memcmp(clp->cl_session->sess_id.data,
+ sessionid->data,
+ NFS4_MAX_SESSIONID_LEN) == 0) {
+ /* Returns a held reference to clp */
+ return clp;
+ }
+ }
+ clp = nfs_find_client_next(prev);
+ nfs_put_client(prev);
+ } while (clp != NULL);
+
+ return NULL;
+}
+
+/* FIXME: referring calls should be processed */
+unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
+ struct cb_sequenceres *res)
+{
+ struct nfs_client *clp;
+ int i, status;
+
+ for (i = 0; i < args->csa_nrclists; i++)
+ kfree(args->csa_rclists[i].rcl_refcalls);
+ kfree(args->csa_rclists);
+
+ status = htonl(NFS4ERR_BADSESSION);
+ clp = find_client_with_session(args->csa_addr, 4, &args->csa_sessionid);
+ if (clp == NULL)
+ goto out;
+
+ status = validate_seqid(&clp->cl_session->bc_slot_table,
+ args->csa_slotid, args->csa_sequenceid);
+ if (status)
+ goto out_putclient;
+
+ memcpy(&res->csr_sessionid, &args->csa_sessionid,
+ sizeof(res->csr_sessionid));
+ res->csr_sequenceid = args->csa_sequenceid;
+ res->csr_slotid = args->csa_slotid;
+ res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+ res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+
+out_putclient:
+ nfs_put_client(clp);
+out:
+ dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
+ res->csr_status = status;
+ return res->csr_status;
+}
+
+#endif /* CONFIG_NFS_V4_1 */
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index dd0ef34b584..e5a2dac5f71 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -20,6 +20,11 @@
2 + 2 + 3 + 3)
#define CB_OP_RECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
+#if defined(CONFIG_NFS_V4_1)
+#define CB_OP_SEQUENCE_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \
+ 4 + 1 + 3)
+#endif /* CONFIG_NFS_V4_1 */
+
#define NFSDBG_FACILITY NFSDBG_CALLBACK
typedef __be32 (*callback_process_op_t)(void *, void *);
@@ -132,7 +137,6 @@ static __be32 decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound_hdr_arg *hdr)
{
__be32 *p;
- unsigned int minor_version;
__be32 status;
status = decode_string(xdr, &hdr->taglen, &hdr->tag);
@@ -147,15 +151,19 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
p = read_buf(xdr, 12);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
- minor_version = ntohl(*p++);
- /* Check minor version is zero. */
- if (minor_version != 0) {
- printk(KERN_WARNING "%s: NFSv4 server callback with illegal minor version %u!\n",
- __func__, minor_version);
+ hdr->minorversion = ntohl(*p++);
+ /* Check minor version is zero or one. */
+ if (hdr->minorversion <= 1) {
+ p++; /* skip callback_ident */
+ } else {
+ printk(KERN_WARNING "%s: NFSv4 server callback with "
+ "illegal minor version %u!\n",
+ __func__, hdr->minorversion);
return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
}
- hdr->callback_ident = ntohl(*p++);
hdr->nops = ntohl(*p);
+ dprintk("%s: minorversion %d nops %d\n", __func__,
+ hdr->minorversion, hdr->nops);
return 0;
}
@@ -204,6 +212,122 @@ out:
return status;
}
+#if defined(CONFIG_NFS_V4_1)
+
+static unsigned decode_sessionid(struct xdr_stream *xdr,
+ struct nfs4_sessionid *sid)
+{
+ uint32_t *p;
+ int len = NFS4_MAX_SESSIONID_LEN;
+
+ p = read_buf(xdr, len);
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_RESOURCE);;
+
+ memcpy(sid->data, p, len);
+ return 0;
+}
+
+static unsigned decode_rc_list(struct xdr_stream *xdr,
+ struct referring_call_list *rc_list)
+{
+ uint32_t *p;
+ int i;
+ unsigned status;
+
+ status = decode_sessionid(xdr, &rc_list->rcl_sessionid);
+ if (status)
+ goto out;
+
+ status = htonl(NFS4ERR_RESOURCE);
+ p = read_buf(xdr, sizeof(uint32_t));
+ if (unlikely(p == NULL))
+ goto out;
+
+ rc_list->rcl_nrefcalls = ntohl(*p++);
+ if (rc_list->rcl_nrefcalls) {
+ p = read_buf(xdr,
+ rc_list->rcl_nrefcalls * 2 * sizeof(uint32_t));
+ if (unlikely(p == NULL))
+ goto out;
+ rc_list->rcl_refcalls = kmalloc(rc_list->rcl_nrefcalls *
+ sizeof(*rc_list->rcl_refcalls),
+ GFP_KERNEL);
+ if (unlikely(rc_list->rcl_refcalls == NULL))
+ goto out;
+ for (i = 0; i < rc_list->rcl_nrefcalls; i++) {
+ rc_list->rcl_refcalls[i].rc_sequenceid = ntohl(*p++);
+ rc_list->rcl_refcalls[i].rc_slotid = ntohl(*p++);
+ }
+ }
+ status = 0;
+
+out:
+ return status;
+}
+
+static unsigned decode_cb_sequence_args(struct svc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct cb_sequenceargs *args)
+{
+ uint32_t *p;
+ int i;
+ unsigned status;
+
+ status = decode_sessionid(xdr, &args->csa_sessionid);
+ if (status)
+ goto out;
+
+ status = htonl(NFS4ERR_RESOURCE);
+ p = read_buf(xdr, 5 * sizeof(uint32_t));
+ if (unlikely(p == NULL))
+ goto out;
+
+ args->csa_addr = svc_addr(rqstp);
+ args->csa_sequenceid = ntohl(*p++);
+ args->csa_slotid = ntohl(*p++);
+ args->csa_highestslotid = ntohl(*p++);
+ args->csa_cachethis = ntohl(*p++);
+ args->csa_nrclists = ntohl(*p++);
+ args->csa_rclists = NULL;
+ if (args->csa_nrclists) {
+ args->csa_rclists = kmalloc(args->csa_nrclists *
+ sizeof(*args->csa_rclists),
+ GFP_KERNEL);
+ if (unlikely(args->csa_rclists == NULL))
+ goto out;
+
+ for (i = 0; i < args->csa_nrclists; i++) {
+ status = decode_rc_list(xdr, &args->csa_rclists[i]);
+ if (status)
+ goto out_free;
+ }
+ }
+ status = 0;
+
+ dprintk("%s: sessionid %x:%x:%x:%x sequenceid %u slotid %u "
+ "highestslotid %u cachethis %d nrclists %u\n",
+ __func__,
+ ((u32 *)&args->csa_sessionid)[0],
+ ((u32 *)&args->csa_sessionid)[1],
+ ((u32 *)&args->csa_sessionid)[2],
+ ((u32 *)&args->csa_sessionid)[3],
+ args->csa_sequenceid, args->csa_slotid,
+ args->csa_highestslotid, args->csa_cachethis,
+ args->csa_nrclists);
+out:
+ dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
+ return status;
+
+out_free:
+ for (i = 0; i < args->csa_nrclists; i++)
+ kfree(args->csa_rclists[i].rcl_refcalls);
+ kfree(args->csa_rclists);
+ goto out;
+}
+
+#endif /* CONFIG_NFS_V4_1 */
+
static __be32 encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
{
__be32 *p;
@@ -353,31 +477,134 @@ out:
return status;
}
-static __be32 process_op(struct svc_rqst *rqstp,
+#if defined(CONFIG_NFS_V4_1)
+
+static unsigned encode_sessionid(struct xdr_stream *xdr,
+ const struct nfs4_sessionid *sid)
+{
+ uint32_t *p;
+ int len = NFS4_MAX_SESSIONID_LEN;
+
+ p = xdr_reserve_space(xdr, len);
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_RESOURCE);
+
+ memcpy(p, sid, len);
+ return 0;
+}
+
+static unsigned encode_cb_sequence_res(struct svc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ const struct cb_sequenceres *res)
+{
+ uint32_t *p;
+ unsigned status = res->csr_status;
+
+ if (unlikely(status != 0))
+ goto out;
+
+ encode_sessionid(xdr, &res->csr_sessionid);
+
+ p = xdr_reserve_space(xdr, 4 * sizeof(uint32_t));
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_RESOURCE);
+
+ *p++ = htonl(res->csr_sequenceid);
+ *p++ = htonl(res->csr_slotid);
+ *p++ = htonl(res->csr_highestslotid);
+ *p++ = htonl(res->csr_target_highestslotid);
+out:
+ dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
+ return status;
+}
+
+static __be32
+preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
+{
+ if (op_nr == OP_CB_SEQUENCE) {
+ if (nop != 0)
+ return htonl(NFS4ERR_SEQUENCE_POS);
+ } else {
+ if (nop == 0)
+ return htonl(NFS4ERR_OP_NOT_IN_SESSION);
+ }
+
+ switch (op_nr) {
+ case OP_CB_GETATTR:
+ case OP_CB_RECALL:
+ case OP_CB_SEQUENCE:
+ *op = &callback_ops[op_nr];
+ break;
+
+ case OP_CB_LAYOUTRECALL:
+ case OP_CB_NOTIFY_DEVICEID:
+ case OP_CB_NOTIFY:
+ case OP_CB_PUSH_DELEG:
+ case OP_CB_RECALL_ANY:
+ case OP_CB_RECALLABLE_OBJ_AVAIL:
+ case OP_CB_RECALL_SLOT:
+ case OP_CB_WANTS_CANCELLED:
+ case OP_CB_NOTIFY_LOCK:
+ return htonl(NFS4ERR_NOTSUPP);
+
+ default:
+ return htonl(NFS4ERR_OP_ILLEGAL);
+ }
+
+ return htonl(NFS_OK);
+}
+
+#else /* CONFIG_NFS_V4_1 */
+
+static __be32
+preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
+{
+ return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
+}
+
+#endif /* CONFIG_NFS_V4_1 */
+
+static __be32
+preprocess_nfs4_op(unsigned int op_nr, struct callback_op **op)
+{
+ switch (op_nr) {
+ case OP_CB_GETATTR:
+ case OP_CB_RECALL:
+ *op = &callback_ops[op_nr];
+ break;
+ default:
+ return htonl(NFS4ERR_OP_ILLEGAL);
+ }
+
+ return htonl(NFS_OK);
+}
+
+static __be32 process_op(uint32_t minorversion, int nop,
+ struct svc_rqst *rqstp,
struct xdr_stream *xdr_in, void *argp,
struct xdr_stream *xdr_out, void *resp)
{
struct callback_op *op = &callback_ops[0];
unsigned int op_nr = OP_CB_ILLEGAL;
- __be32 status = 0;
+ __be32 status;
long maxlen;
__be32 res;
dprintk("%s: start\n", __func__);
status = decode_op_hdr(xdr_in, &op_nr);
- if (likely(status == 0)) {
- switch (op_nr) {
- case OP_CB_GETATTR:
- case OP_CB_RECALL:
- op = &callback_ops[op_nr];
- break;
- default:
- op_nr = OP_CB_ILLEGAL;
- op = &callback_ops[0];
- status = htonl(NFS4ERR_OP_ILLEGAL);
- }
+ if (unlikely(status)) {
+ status = htonl(NFS4ERR_OP_ILLEGAL);
+ goto out;
}
+ dprintk("%s: minorversion=%d nop=%d op_nr=%u\n",
+ __func__, minorversion, nop, op_nr);
+
+ status = minorversion ? preprocess_nfs41_op(nop, op_nr, &op) :
+ preprocess_nfs4_op(op_nr, &op);
+ if (status == htonl(NFS4ERR_OP_ILLEGAL))
+ op_nr = OP_CB_ILLEGAL;
+out:
maxlen = xdr_out->end - xdr_out->p;
if (maxlen > 0 && maxlen < PAGE_SIZE) {
if (likely(status == 0 && op->decode_args != NULL))
@@ -425,7 +652,8 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
return rpc_system_err;
while (status == 0 && nops != hdr_arg.nops) {
- status = process_op(rqstp, &xdr_in, argp, &xdr_out, resp);
+ status = process_op(hdr_arg.minorversion, nops,
+ rqstp, &xdr_in, argp, &xdr_out, resp);
nops++;
}
@@ -452,7 +680,15 @@ static struct callback_op callback_ops[] = {
.process_op = (callback_process_op_t)nfs4_callback_recall,
.decode_args = (callback_decode_arg_t)decode_recall_args,
.res_maxsize = CB_OP_RECALL_RES_MAXSZ,
- }
+ },
+#if defined(CONFIG_NFS_V4_1)
+ [OP_CB_SEQUENCE] = {
+ .process_op = (callback_process_op_t)nfs4_callback_sequence,
+ .decode_args = (callback_decode_arg_t)decode_cb_sequence_args,
+ .encode_res = (callback_encode_res_t)encode_cb_sequence_res,
+ .res_maxsize = CB_OP_SEQUENCE_RES_MAXSZ,
+ },
+#endif /* CONFIG_NFS_V4_1 */
};
/*
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 0e9a1f9743b..c2d061675d8 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -37,6 +37,7 @@
#include <linux/in6.h>
#include <net/ipv6.h>
#include <linux/nfs_xdr.h>
+#include <linux/sunrpc/bc_xprt.h>
#include <asm/system.h>
@@ -102,6 +103,7 @@ struct nfs_client_initdata {
size_t addrlen;
const struct nfs_rpc_ops *rpc_ops;
int proto;
+ u32 minorversion;
};
/*
@@ -121,13 +123,6 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
clp->rpc_ops = cl_init->rpc_ops;
- if (cl_init->rpc_ops->version == 4) {
- err = nfs_callback_up();
- if (err < 0)
- goto error_2;
- __set_bit(NFS_CS_CALLBACK, &clp->cl_res_state);
- }
-
atomic_set(&clp->cl_count, 1);
clp->cl_cons_state = NFS_CS_INITING;
@@ -138,7 +133,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
err = -ENOMEM;
clp->cl_hostname = kstrdup(cl_init->hostname, GFP_KERNEL);
if (!clp->cl_hostname)
- goto error_3;
+ goto error_cleanup;
}
INIT_LIST_HEAD(&clp->cl_superblocks);
@@ -153,6 +148,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
clp->cl_boot_time = CURRENT_TIME;
clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
+ clp->cl_minorversion = cl_init->minorversion;
#endif
cred = rpc_lookup_machine_cred();
if (!IS_ERR(cred))
@@ -162,10 +158,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
return clp;
-error_3:
- if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
- nfs_callback_down();
-error_2:
+error_cleanup:
kfree(clp);
error_0:
return ERR_PTR(err);
@@ -185,12 +178,42 @@ static void nfs4_shutdown_client(struct nfs_client *clp)
}
/*
+ * Destroy the NFS4 callback service
+ */
+static void nfs4_destroy_callback(struct nfs_client *clp)
+{
+#ifdef CONFIG_NFS_V4
+ if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
+ nfs_callback_down(clp->cl_minorversion);
+#endif /* CONFIG_NFS_V4 */
+}
+
+/*
+ * Clears/puts all minor version specific parts from an nfs_client struct
+ * reverting it to minorversion 0.
+ */
+static void nfs4_clear_client_minor_version(struct nfs_client *clp)
+{
+#ifdef CONFIG_NFS_V4_1
+ if (nfs4_has_session(clp)) {
+ nfs4_destroy_session(clp->cl_session);
+ clp->cl_session = NULL;
+ }
+
+ clp->cl_call_sync = _nfs4_call_sync;
+#endif /* CONFIG_NFS_V4_1 */
+
+ nfs4_destroy_callback(clp);
+}
+
+/*
* Destroy a shared client record
*/
static void nfs_free_client(struct nfs_client *clp)
{
dprintk("--> nfs_free_client(%u)\n", clp->rpc_ops->version);
+ nfs4_clear_client_minor_version(clp);
nfs4_shutdown_client(clp);
nfs_fscache_release_client_cookie(clp);
@@ -199,9 +222,6 @@ static void nfs_free_client(struct nfs_client *clp)
if (!IS_ERR(clp->cl_rpcclient))
rpc_shutdown_client(clp->cl_rpcclient);
- if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
- nfs_callback_down();
-
if (clp->cl_machine_cred != NULL)
put_rpccred(clp->cl_machine_cred);
@@ -350,7 +370,8 @@ struct nfs_client *nfs_find_client(const struct sockaddr *addr, u32 nfsversion)
struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;
/* Don't match clients that failed to initialise properly */
- if (clp->cl_cons_state != NFS_CS_READY)
+ if (!(clp->cl_cons_state == NFS_CS_READY ||
+ clp->cl_cons_state == NFS_CS_SESSION_INITING))
continue;
/* Different NFS versions cannot share the same nfs_client */
@@ -423,7 +444,9 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
if (clp->cl_proto != data->proto)
continue;
-
+ /* Match nfsv4 minorversion */
+ if (clp->cl_minorversion != data->minorversion)
+ continue;
/* Match the full socket address */
if (!nfs_sockaddr_cmp(sap, clap))
continue;
@@ -482,7 +505,7 @@ found_client:
nfs_free_client(new);
error = wait_event_killable(nfs_client_active_wq,
- clp->cl_cons_state != NFS_CS_INITING);
+ clp->cl_cons_state < NFS_CS_INITING);
if (error < 0) {
nfs_put_client(clp);
return ERR_PTR(-ERESTARTSYS);
@@ -503,13 +526,29 @@ found_client:
/*
* Mark a server as ready or failed
*/
-static void nfs_mark_client_ready(struct nfs_client *clp, int state)
+void nfs_mark_client_ready(struct nfs_client *clp, int state)
{
clp->cl_cons_state = state;
wake_up_all(&nfs_client_active_wq);
}
/*
+ * With sessions, the client is not marked ready until after a
+ * successful EXCHANGE_ID and CREATE_SESSION.
+ *
+ * Map errors cl_cons_state errors to EPROTONOSUPPORT to indicate
+ * other versions of NFS can be tried.
+ */
+int nfs4_check_client_ready(struct nfs_client *clp)
+{
+ if (!nfs4_has_session(clp))
+ return 0;
+ if (clp->cl_cons_state < NFS_CS_READY)
+ return -EPROTONOSUPPORT;
+ return 0;
+}
+
+/*
* Initialise the timeout values for a connection
*/
static void nfs_init_timeout_values(struct rpc_timeout *to, int proto,
@@ -1054,6 +1093,61 @@ error:
#ifdef CONFIG_NFS_V4
/*
+ * Initialize the NFS4 callback service
+ */
+static int nfs4_init_callback(struct nfs_client *clp)
+{
+ int error;
+
+ if (clp->rpc_ops->version == 4) {
+ if (nfs4_has_session(clp)) {
+ error = xprt_setup_backchannel(
+ clp->cl_rpcclient->cl_xprt,
+ NFS41_BC_MIN_CALLBACKS);
+ if (error < 0)
+ return error;
+ }
+
+ error = nfs_callback_up(clp->cl_minorversion,
+ clp->cl_rpcclient->cl_xprt);
+ if (error < 0) {
+ dprintk("%s: failed to start callback. Error = %d\n",
+ __func__, error);
+ return error;
+ }
+ __set_bit(NFS_CS_CALLBACK, &clp->cl_res_state);
+ }
+ return 0;
+}
+
+/*
+ * Initialize the minor version specific parts of an NFS4 client record
+ */
+static int nfs4_init_client_minor_version(struct nfs_client *clp)
+{
+ clp->cl_call_sync = _nfs4_call_sync;
+
+#if defined(CONFIG_NFS_V4_1)
+ if (clp->cl_minorversion) {
+ struct nfs4_session *session = NULL;
+ /*
+ * Create the session and mark it expired.
+ * When a SEQUENCE operation encounters the expired session
+ * it will do session recovery to initialize it.
+ */
+ session = nfs4_alloc_session(clp);
+ if (!session)
+ return -ENOMEM;
+
+ clp->cl_session = session;
+ clp->cl_call_sync = _nfs4_call_sync_session;
+ }
+#endif /* CONFIG_NFS_V4_1 */
+
+ return nfs4_init_callback(clp);
+}
+
+/*
* Initialise an NFS4 client record
*/
static int nfs4_init_client(struct nfs_client *clp,
@@ -1087,7 +1181,12 @@ static int nfs4_init_client(struct nfs_client *clp,
}
__set_bit(NFS_CS_IDMAP, &clp->cl_res_state);
- nfs_mark_client_ready(clp, NFS_CS_READY);
+ error = nfs4_init_client_minor_version(clp);
+ if (error < 0)
+ goto error;
+
+ if (!nfs4_has_session(clp))
+ nfs_mark_client_ready(clp, NFS_CS_READY);
return 0;
error:
@@ -1105,7 +1204,8 @@ static int nfs4_set_client(struct nfs_server *server,
const size_t addrlen,
const char *ip_addr,
rpc_authflavor_t authflavour,
- int proto, const struct rpc_timeout *timeparms)
+ int proto, const struct rpc_timeout *timeparms,
+ u32 minorversion)
{
struct nfs_client_initdata cl_init = {
.hostname = hostname,
@@ -1113,6 +1213,7 @@ static int nfs4_set_client(struct nfs_server *server,
.addrlen = addrlen,
.rpc_ops = &nfs_v4_clientops,
.proto = proto,
+ .minorversion = minorversion,
};
struct nfs_client *clp;
int error;
@@ -1142,6 +1243,36 @@ error:
}
/*
+ * Initialize a session.
+ * Note: save the mount rsize and wsize for create_server negotiation.
+ */
+static void nfs4_init_session(struct nfs_client *clp,
+ unsigned int wsize, unsigned int rsize)
+{
+#if defined(CONFIG_NFS_V4_1)
+ if (nfs4_has_session(clp)) {
+ clp->cl_session->fc_attrs.max_rqst_sz = wsize;
+ clp->cl_session->fc_attrs.max_resp_sz = rsize;
+ }
+#endif /* CONFIG_NFS_V4_1 */
+}
+
+/*
+ * Session has been established, and the client marked ready.
+ * Set the mount rsize and wsize with negotiated fore channel
+ * attributes which will be bound checked in nfs_server_set_fsinfo.
+ */
+static void nfs4_session_set_rwsize(struct nfs_server *server)
+{
+#ifdef CONFIG_NFS_V4_1
+ if (!nfs4_has_session(server->nfs_client))
+ return;
+ server->rsize = server->nfs_client->cl_session->fc_attrs.max_resp_sz;
+ server->wsize = server->nfs_client->cl_session->fc_attrs.max_rqst_sz;
+#endif /* CONFIG_NFS_V4_1 */
+}
+
+/*
* Create a version 4 volume record
*/
static int nfs4_init_server(struct nfs_server *server,
@@ -1168,7 +1299,8 @@ static int nfs4_init_server(struct nfs_server *server,
data->client_address,
data->auth_flavors[0],
data->nfs_server.protocol,
- &timeparms);
+ &timeparms,
+ data->minorversion);
if (error < 0)
goto error;
@@ -1218,6 +1350,8 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
BUG_ON(!server->nfs_client->rpc_ops);
BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
+ nfs4_init_session(server->nfs_client, server->wsize, server->rsize);
+
/* Probe the root fh to retrieve its FSID */
error = nfs4_path_walk(server, mntfh, data->nfs_server.export_path);
if (error < 0)
@@ -1228,6 +1362,8 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
(unsigned long long) server->fsid.minor);
dprintk("Mount FH: %d\n", mntfh->size);
+ nfs4_session_set_rwsize(server);
+
error = nfs_probe_fsinfo(server, mntfh, &fattr);
if (error < 0)
goto error;
@@ -1286,7 +1422,8 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
parent_client->cl_ipaddr,
data->authflavor,
parent_server->client->cl_xprt->prot,
- parent_server->client->cl_timeout);
+ parent_server->client->cl_timeout,
+ parent_client->cl_minorversion);
if (error < 0)
goto error;
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 08f6b040d28..489fc01a320 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -259,6 +259,9 @@ static void nfs_direct_read_release(void *calldata)
}
static const struct rpc_call_ops nfs_read_direct_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_read_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_read_result,
.rpc_release = nfs_direct_read_release,
};
@@ -535,6 +538,9 @@ static void nfs_direct_commit_release(void *calldata)
}
static const struct rpc_call_ops nfs_commit_direct_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_write_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_commit_result,
.rpc_release = nfs_direct_commit_release,
};
@@ -673,6 +679,9 @@ out_unlock:
}
static const struct rpc_call_ops nfs_write_direct_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_write_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_write_result,
.rpc_release = nfs_direct_write_release,
};
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 10cf1110df4..7dd90a6769d 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -2,6 +2,7 @@
* NFS internal definitions
*/
+#include "nfs4_fs.h"
#include <linux/mount.h>
#include <linux/security.h>
@@ -17,6 +18,18 @@ struct nfs_string;
*/
#define NFS_MAX_READAHEAD (RPC_DEF_SLOT_TABLE - 1)
+/*
+ * Determine if sessions are in use.
+ */
+static inline int nfs4_has_session(const struct nfs_client *clp)
+{
+#ifdef CONFIG_NFS_V4_1
+ if (clp->cl_session)
+ return 1;
+#endif /* CONFIG_NFS_V4_1 */
+ return 0;
+}
+
struct nfs_clone_mount {
const struct super_block *sb;
const struct dentry *dentry;
@@ -50,6 +63,7 @@ struct nfs_parsed_mount_data {
unsigned int auth_flavor_len;
rpc_authflavor_t auth_flavors[1];
char *client_address;
+ unsigned int minorversion;
char *fscache_uniq;
struct {
@@ -107,6 +121,8 @@ extern void nfs_free_server(struct nfs_server *server);
extern struct nfs_server *nfs_clone_server(struct nfs_server *,
struct nfs_fh *,
struct nfs_fattr *);
+extern void nfs_mark_client_ready(struct nfs_client *clp, int state);
+extern int nfs4_check_client_ready(struct nfs_client *clp);
#ifdef CONFIG_PROC_FS
extern int __init nfs_fs_proc_init(void);
extern void nfs_fs_proc_exit(void);
@@ -154,6 +170,20 @@ extern __be32 * nfs_decode_dirent(__be32 *, struct nfs_entry *, int);
extern struct rpc_procinfo nfs3_procedures[];
extern __be32 *nfs3_decode_dirent(__be32 *, struct nfs_entry *, int);
+/* nfs4proc.c */
+static inline void nfs4_restart_rpc(struct rpc_task *task,
+ const struct nfs_client *clp)
+{
+#ifdef CONFIG_NFS_V4_1
+ if (nfs4_has_session(clp) &&
+ test_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state)) {
+ rpc_restart_call_prepare(task);
+ return;
+ }
+#endif /* CONFIG_NFS_V4_1 */
+ rpc_restart_call(task);
+}
+
/* nfs4xdr.c */
#ifdef CONFIG_NFS_V4
extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus);
@@ -213,6 +243,38 @@ extern int nfs4_path_walk(struct nfs_server *server,
const char *path);
#endif
+/* read.c */
+extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
+
+/* write.c */
+extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
+
+/* nfs4proc.c */
+extern int _nfs4_call_sync(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply);
+extern int _nfs4_call_sync_session(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply);
+
+#ifdef CONFIG_NFS_V4_1
+extern void nfs41_sequence_free_slot(const struct nfs_client *,
+ struct nfs4_sequence_res *res);
+#endif /* CONFIG_NFS_V4_1 */
+
+static inline void nfs4_sequence_free_slot(const struct nfs_client *clp,
+ struct nfs4_sequence_res *res)
+{
+#ifdef CONFIG_NFS_V4_1
+ if (nfs4_has_session(clp))
+ nfs41_sequence_free_slot(clp, res);
+#endif /* CONFIG_NFS_V4_1 */
+}
+
/*
* Determine the device name as a string
*/
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 84345deab26..61bc3a32e1e 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -44,6 +44,7 @@ enum nfs4_client_state {
NFS4CLNT_RECLAIM_REBOOT,
NFS4CLNT_RECLAIM_NOGRACE,
NFS4CLNT_DELEGRETURN,
+ NFS4CLNT_SESSION_SETUP,
};
/*
@@ -177,6 +178,14 @@ struct nfs4_state_recovery_ops {
int state_flag_bit;
int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *);
int (*recover_lock)(struct nfs4_state *, struct file_lock *);
+ int (*establish_clid)(struct nfs_client *, struct rpc_cred *);
+ struct rpc_cred * (*get_clid_cred)(struct nfs_client *);
+};
+
+struct nfs4_state_maintenance_ops {
+ int (*sched_state_renewal)(struct nfs_client *, struct rpc_cred *);
+ struct rpc_cred * (*get_state_renewal_cred_locked)(struct nfs_client *);
+ int (*renew_lease)(struct nfs_client *, struct rpc_cred *);
};
extern const struct dentry_operations nfs4_dentry_operations;
@@ -193,6 +202,7 @@ extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struc
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_async_renew(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_renew(struct nfs_client *, struct rpc_cred *);
+extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *);
extern int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait);
extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
@@ -200,8 +210,26 @@ extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fh
extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page);
-extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
-extern struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops;
+extern struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[];
+extern struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[];
+#if defined(CONFIG_NFS_V4_1)
+extern int nfs4_setup_sequence(struct nfs_client *clp,
+ struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
+ int cache_reply, struct rpc_task *task);
+extern void nfs4_destroy_session(struct nfs4_session *session);
+extern struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp);
+extern int nfs4_proc_create_session(struct nfs_client *, int reset);
+extern int nfs4_proc_destroy_session(struct nfs4_session *);
+#else /* CONFIG_NFS_v4_1 */
+static inline int nfs4_setup_sequence(struct nfs_client *clp,
+ struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
+ int cache_reply, struct rpc_task *task)
+{
+ return 0;
+}
+#endif /* CONFIG_NFS_V4_1 */
+
+extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[];
extern const u32 nfs4_fattr_bitmap[2];
extern const u32 nfs4_statfs_bitmap[2];
@@ -216,7 +244,12 @@ extern void nfs4_kill_renewd(struct nfs_client *);
extern void nfs4_renew_state(struct work_struct *);
/* nfs4state.c */
+struct rpc_cred *nfs4_get_setclientid_cred(struct nfs_client *clp);
struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp);
+#if defined(CONFIG_NFS_V4_1)
+struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp);
+struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp);
+#endif /* CONFIG_NFS_V4_1 */
extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *);
extern void nfs4_put_state_owner(struct nfs4_state_owner *);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 42e6a3b0549..7a750f061c2 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -48,11 +48,14 @@
#include <linux/smp_lock.h>
#include <linux/namei.h>
#include <linux/mount.h>
+#include <linux/module.h>
+#include <linux/sunrpc/bc_xprt.h>
#include "nfs4_fs.h"
#include "delegation.h"
#include "internal.h"
#include "iostat.h"
+#include "callback.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -247,7 +250,25 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode,
ret = nfs4_wait_clnt_recover(clp);
if (ret == 0)
exception->retry = 1;
+#if !defined(CONFIG_NFS_V4_1)
break;
+#else /* !defined(CONFIG_NFS_V4_1) */
+ if (!nfs4_has_session(server->nfs_client))
+ break;
+ /* FALLTHROUGH */
+ case -NFS4ERR_BADSESSION:
+ case -NFS4ERR_BADSLOT:
+ case -NFS4ERR_BAD_HIGH_SLOT:
+ case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ case -NFS4ERR_DEADSESSION:
+ case -NFS4ERR_SEQ_FALSE_RETRY:
+ case -NFS4ERR_SEQ_MISORDERED:
+ dprintk("%s ERROR: %d Reset session\n", __func__,
+ errorcode);
+ set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
+ exception->retry = 1;
+ /* FALLTHROUGH */
+#endif /* !defined(CONFIG_NFS_V4_1) */
case -NFS4ERR_FILE_OPEN:
case -NFS4ERR_GRACE:
case -NFS4ERR_DELAY:
@@ -271,6 +292,353 @@ static void renew_lease(const struct nfs_server *server, unsigned long timestamp
spin_unlock(&clp->cl_lock);
}
+#if defined(CONFIG_NFS_V4_1)
+
+/*
+ * nfs4_free_slot - free a slot and efficiently update slot table.
+ *
+ * freeing a slot is trivially done by clearing its respective bit
+ * in the bitmap.
+ * If the freed slotid equals highest_used_slotid we want to update it
+ * so that the server would be able to size down the slot table if needed,
+ * otherwise we know that the highest_used_slotid is still in use.
+ * When updating highest_used_slotid there may be "holes" in the bitmap
+ * so we need to scan down from highest_used_slotid to 0 looking for the now
+ * highest slotid in use.
+ * If none found, highest_used_slotid is set to -1.
+ */
+static void
+nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
+{
+ int slotid = free_slotid;
+
+ spin_lock(&tbl->slot_tbl_lock);
+ /* clear used bit in bitmap */
+ __clear_bit(slotid, tbl->used_slots);
+
+ /* update highest_used_slotid when it is freed */
+ if (slotid == tbl->highest_used_slotid) {
+ slotid = find_last_bit(tbl->used_slots, tbl->max_slots);
+ if (slotid >= 0 && slotid < tbl->max_slots)
+ tbl->highest_used_slotid = slotid;
+ else
+ tbl->highest_used_slotid = -1;
+ }
+ rpc_wake_up_next(&tbl->slot_tbl_waitq);
+ spin_unlock(&tbl->slot_tbl_lock);
+ dprintk("%s: free_slotid %u highest_used_slotid %d\n", __func__,
+ free_slotid, tbl->highest_used_slotid);
+}
+
+void nfs41_sequence_free_slot(const struct nfs_client *clp,
+ struct nfs4_sequence_res *res)
+{
+ struct nfs4_slot_table *tbl;
+
+ if (!nfs4_has_session(clp)) {
+ dprintk("%s: No session\n", __func__);
+ return;
+ }
+ tbl = &clp->cl_session->fc_slot_table;
+ if (res->sr_slotid == NFS4_MAX_SLOT_TABLE) {
+ dprintk("%s: No slot\n", __func__);
+ /* just wake up the next guy waiting since
+ * we may have not consumed a slot after all */
+ rpc_wake_up_next(&tbl->slot_tbl_waitq);
+ return;
+ }
+ nfs4_free_slot(tbl, res->sr_slotid);
+ res->sr_slotid = NFS4_MAX_SLOT_TABLE;
+}
+
+static void nfs41_sequence_done(struct nfs_client *clp,
+ struct nfs4_sequence_res *res,
+ int rpc_status)
+{
+ unsigned long timestamp;
+ struct nfs4_slot_table *tbl;
+ struct nfs4_slot *slot;
+
+ /*
+ * sr_status remains 1 if an RPC level error occurred. The server
+ * may or may not have processed the sequence operation..
+ * Proceed as if the server received and processed the sequence
+ * operation.
+ */
+ if (res->sr_status == 1)
+ res->sr_status = NFS_OK;
+
+ /* -ERESTARTSYS can result in skipping nfs41_sequence_setup */
+ if (res->sr_slotid == NFS4_MAX_SLOT_TABLE)
+ goto out;
+
+ tbl = &clp->cl_session->fc_slot_table;
+ slot = tbl->slots + res->sr_slotid;
+
+ if (res->sr_status == 0) {
+ /* Update the slot's sequence and clientid lease timer */
+ ++slot->seq_nr;
+ timestamp = res->sr_renewal_time;
+ spin_lock(&clp->cl_lock);
+ if (time_before(clp->cl_last_renewal, timestamp))
+ clp->cl_last_renewal = timestamp;
+ spin_unlock(&clp->cl_lock);
+ return;
+ }
+out:
+ /* The session may be reset by one of the error handlers. */
+ dprintk("%s: Error %d free the slot \n", __func__, res->sr_status);
+ nfs41_sequence_free_slot(clp, res);
+}
+
+/*
+ * nfs4_find_slot - efficiently look for a free slot
+ *
+ * nfs4_find_slot looks for an unset bit in the used_slots bitmap.
+ * If found, we mark the slot as used, update the highest_used_slotid,
+ * and respectively set up the sequence operation args.
+ * The slot number is returned if found, or NFS4_MAX_SLOT_TABLE otherwise.
+ *
+ * Note: must be called with under the slot_tbl_lock.
+ */
+static u8
+nfs4_find_slot(struct nfs4_slot_table *tbl, struct rpc_task *task)
+{
+ int slotid;
+ u8 ret_id = NFS4_MAX_SLOT_TABLE;
+ BUILD_BUG_ON((u8)NFS4_MAX_SLOT_TABLE != (int)NFS4_MAX_SLOT_TABLE);
+
+ dprintk("--> %s used_slots=%04lx highest_used=%d max_slots=%d\n",
+ __func__, tbl->used_slots[0], tbl->highest_used_slotid,
+ tbl->max_slots);
+ slotid = find_first_zero_bit(tbl->used_slots, tbl->max_slots);
+ if (slotid >= tbl->max_slots)
+ goto out;
+ __set_bit(slotid, tbl->used_slots);
+ if (slotid > tbl->highest_used_slotid)
+ tbl->highest_used_slotid = slotid;
+ ret_id = slotid;
+out:
+ dprintk("<-- %s used_slots=%04lx highest_used=%d slotid=%d \n",
+ __func__, tbl->used_slots[0], tbl->highest_used_slotid, ret_id);
+ return ret_id;
+}
+
+static int nfs4_recover_session(struct nfs4_session *session)
+{
+ struct nfs_client *clp = session->clp;
+ int ret;
+
+ for (;;) {
+ ret = nfs4_wait_clnt_recover(clp);
+ if (ret != 0)
+ return ret;
+ if (!test_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state))
+ break;
+ nfs4_schedule_state_manager(clp);
+ }
+ return 0;
+}
+
+static int nfs41_setup_sequence(struct nfs4_session *session,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply,
+ struct rpc_task *task)
+{
+ struct nfs4_slot *slot;
+ struct nfs4_slot_table *tbl;
+ int status = 0;
+ u8 slotid;
+
+ dprintk("--> %s\n", __func__);
+ /* slot already allocated? */
+ if (res->sr_slotid != NFS4_MAX_SLOT_TABLE)
+ return 0;
+
+ memset(res, 0, sizeof(*res));
+ res->sr_slotid = NFS4_MAX_SLOT_TABLE;
+ tbl = &session->fc_slot_table;
+
+ spin_lock(&tbl->slot_tbl_lock);
+ if (test_bit(NFS4CLNT_SESSION_SETUP, &session->clp->cl_state)) {
+ if (tbl->highest_used_slotid != -1) {
+ rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
+ spin_unlock(&tbl->slot_tbl_lock);
+ dprintk("<-- %s: Session reset: draining\n", __func__);
+ return -EAGAIN;
+ }
+
+ /* The slot table is empty; start the reset thread */
+ dprintk("%s Session Reset\n", __func__);
+ spin_unlock(&tbl->slot_tbl_lock);
+ status = nfs4_recover_session(session);
+ if (status)
+ return status;
+ spin_lock(&tbl->slot_tbl_lock);
+ }
+
+ slotid = nfs4_find_slot(tbl, task);
+ if (slotid == NFS4_MAX_SLOT_TABLE) {
+ rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
+ spin_unlock(&tbl->slot_tbl_lock);
+ dprintk("<-- %s: no free slots\n", __func__);
+ return -EAGAIN;
+ }
+ spin_unlock(&tbl->slot_tbl_lock);
+
+ slot = tbl->slots + slotid;
+ args->sa_session = session;
+ args->sa_slotid = slotid;
+ args->sa_cache_this = cache_reply;
+
+ dprintk("<-- %s slotid=%d seqid=%d\n", __func__, slotid, slot->seq_nr);
+
+ res->sr_session = session;
+ res->sr_slotid = slotid;
+ res->sr_renewal_time = jiffies;
+ /*
+ * sr_status is only set in decode_sequence, and so will remain
+ * set to 1 if an rpc level failure occurs.
+ */
+ res->sr_status = 1;
+ return 0;
+}
+
+int nfs4_setup_sequence(struct nfs_client *clp,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply,
+ struct rpc_task *task)
+{
+ int ret = 0;
+
+ dprintk("--> %s clp %p session %p sr_slotid %d\n",
+ __func__, clp, clp->cl_session, res->sr_slotid);
+
+ if (!nfs4_has_session(clp))
+ goto out;
+ ret = nfs41_setup_sequence(clp->cl_session, args, res, cache_reply,
+ task);
+ if (ret != -EAGAIN) {
+ /* terminate rpc task */
+ task->tk_status = ret;
+ task->tk_action = NULL;
+ }
+out:
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
+}
+
+struct nfs41_call_sync_data {
+ struct nfs_client *clp;
+ struct nfs4_sequence_args *seq_args;
+ struct nfs4_sequence_res *seq_res;
+ int cache_reply;
+};
+
+static void nfs41_call_sync_prepare(struct rpc_task *task, void *calldata)
+{
+ struct nfs41_call_sync_data *data = calldata;
+
+ dprintk("--> %s data->clp->cl_session %p\n", __func__,
+ data->clp->cl_session);
+ if (nfs4_setup_sequence(data->clp, data->seq_args,
+ data->seq_res, data->cache_reply, task))
+ return;
+ rpc_call_start(task);
+}
+
+static void nfs41_call_sync_done(struct rpc_task *task, void *calldata)
+{
+ struct nfs41_call_sync_data *data = calldata;
+
+ nfs41_sequence_done(data->clp, data->seq_res, task->tk_status);
+ nfs41_sequence_free_slot(data->clp, data->seq_res);
+}
+
+struct rpc_call_ops nfs41_call_sync_ops = {
+ .rpc_call_prepare = nfs41_call_sync_prepare,
+ .rpc_call_done = nfs41_call_sync_done,
+};
+
+static int nfs4_call_sync_sequence(struct nfs_client *clp,
+ struct rpc_clnt *clnt,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply)
+{
+ int ret;
+ struct rpc_task *task;
+ struct nfs41_call_sync_data data = {
+ .clp = clp,
+ .seq_args = args,
+ .seq_res = res,
+ .cache_reply = cache_reply,
+ };
+ struct rpc_task_setup task_setup = {
+ .rpc_client = clnt,
+ .rpc_message = msg,
+ .callback_ops = &nfs41_call_sync_ops,
+ .callback_data = &data
+ };
+
+ res->sr_slotid = NFS4_MAX_SLOT_TABLE;
+ task = rpc_run_task(&task_setup);
+ if (IS_ERR(task))
+ ret = PTR_ERR(task);
+ else {
+ ret = task->tk_status;
+ rpc_put_task(task);
+ }
+ return ret;
+}
+
+int _nfs4_call_sync_session(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply)
+{
+ return nfs4_call_sync_sequence(server->nfs_client, server->client,
+ msg, args, res, cache_reply);
+}
+
+#endif /* CONFIG_NFS_V4_1 */
+
+int _nfs4_call_sync(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply)
+{
+ args->sa_session = res->sr_session = NULL;
+ return rpc_call_sync(server->client, msg, 0);
+}
+
+#define nfs4_call_sync(server, msg, args, res, cache_reply) \
+ (server)->nfs_client->cl_call_sync((server), (msg), &(args)->seq_args, \
+ &(res)->seq_res, (cache_reply))
+
+static void nfs4_sequence_done(const struct nfs_server *server,
+ struct nfs4_sequence_res *res, int rpc_status)
+{
+#ifdef CONFIG_NFS_V4_1
+ if (nfs4_has_session(server->nfs_client))
+ nfs41_sequence_done(server->nfs_client, res, rpc_status);
+#endif /* CONFIG_NFS_V4_1 */
+}
+
+/* no restart, therefore free slot here */
+static void nfs4_sequence_done_free_slot(const struct nfs_server *server,
+ struct nfs4_sequence_res *res,
+ int rpc_status)
+{
+ nfs4_sequence_done(server, res, rpc_status);
+ nfs4_sequence_free_slot(server->nfs_client, res);
+}
+
static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
@@ -343,6 +711,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
+ p->o_res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
if (flags & O_EXCL) {
u32 *s = (u32 *) p->o_arg.u.verifier.data;
s[0] = jiffies;
@@ -943,6 +1312,10 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
+ if (nfs4_setup_sequence(data->o_arg.server->nfs_client,
+ &data->o_arg.seq_args,
+ &data->o_res.seq_res, 1, task))
+ return;
rpc_call_start(task);
return;
out_no_action:
@@ -955,6 +1328,10 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata)
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
+
+ nfs4_sequence_done_free_slot(data->o_arg.server, &data->o_res.seq_res,
+ task->tk_status);
+
if (RPC_ASSASSINATED(task))
return;
if (task->tk_status == 0) {
@@ -1283,7 +1660,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
} else
memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &arg, &res, 1);
if (status == 0 && state != NULL)
renew_lease(server, timestamp);
return status;
@@ -1332,6 +1709,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
+ nfs4_sequence_done(server, &calldata->res.seq_res, task->tk_status);
if (RPC_ASSASSINATED(task))
return;
/* hmm. we are done with the inode, and in the process of freeing
@@ -1350,10 +1728,11 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
break;
default:
if (nfs4_async_handle_error(task, server, state) == -EAGAIN) {
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, server->nfs_client);
return;
}
}
+ nfs4_sequence_free_slot(server->nfs_client, &calldata->res.seq_res);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);
}
@@ -1394,6 +1773,10 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
calldata->arg.fmode = FMODE_WRITE;
}
calldata->timestamp = jiffies;
+ if (nfs4_setup_sequence((NFS_SERVER(calldata->inode))->nfs_client,
+ &calldata->arg.seq_args, &calldata->res.seq_res,
+ 1, task))
+ return;
rpc_call_start(task);
}
@@ -1433,13 +1816,15 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
};
int status = -ENOMEM;
- calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
+ calldata = kzalloc(sizeof(*calldata), GFP_KERNEL);
if (calldata == NULL)
goto out;
calldata->inode = state->inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(state->inode);
calldata->arg.stateid = &state->open_stateid;
+ if (nfs4_has_session(server->nfs_client))
+ memset(calldata->arg.stateid->data, 0, 4); /* clear seqid */
/* Serialization for the sequence id */
calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid);
if (calldata->arg.seqid == NULL)
@@ -1449,6 +1834,7 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
calldata->res.server = server;
+ calldata->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
calldata->path.mnt = mntget(path->mnt);
calldata->path.dentry = dget(path->dentry);
@@ -1598,15 +1984,18 @@ void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
{
+ struct nfs4_server_caps_arg args = {
+ .fhandle = fhandle,
+ };
struct nfs4_server_caps_res res = {};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SERVER_CAPS],
- .rpc_argp = fhandle,
+ .rpc_argp = &args,
.rpc_resp = &res,
};
int status;
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &args, &res, 0);
if (status == 0) {
memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask));
if (res.attr_bitmask[0] & FATTR4_WORD0_ACL)
@@ -1620,6 +2009,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
server->acl_bitmask = res.acl_bitmask;
}
+
return status;
}
@@ -1651,8 +2041,15 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
.rpc_argp = &args,
.rpc_resp = &res,
};
+ int status;
+
nfs_fattr_init(info->fattr);
- return rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_recover_expired_lease(server);
+ if (!status)
+ status = nfs4_check_client_ready(server->nfs_client);
+ if (!status)
+ status = nfs4_call_sync(server, &msg, &args, &res, 0);
+ return status;
}
static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
@@ -1742,7 +2139,7 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
};
nfs_fattr_init(fattr);
- return rpc_call_sync(server->client, &msg, 0);
+ return nfs4_call_sync(server, &msg, &args, &res, 0);
}
static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
@@ -1826,7 +2223,7 @@ static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *d
nfs_fattr_init(fattr);
dprintk("NFS call lookupfh %s\n", name->name);
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &args, &res, 0);
dprintk("NFS reply lookupfh: %d\n", status);
return status;
}
@@ -1912,7 +2309,7 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry
args.access |= NFS4_ACCESS_EXECUTE;
}
nfs_fattr_init(&fattr);
- status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+ status = nfs4_call_sync(server, &msg, &args, &res, 0);
if (!status) {
entry->mask = 0;
if (res.access & NFS4_ACCESS_READ)
@@ -1971,13 +2368,14 @@ static int _nfs4_proc_readlink(struct inode *inode, struct page *page,
.pglen = pglen,
.pages = &page,
};
+ struct nfs4_readlink_res res;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READLINK],
.rpc_argp = &args,
- .rpc_resp = NULL,
+ .rpc_resp = &res,
};
- return rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+ return nfs4_call_sync(NFS_SERVER(inode), &msg, &args, &res, 0);
}
static int nfs4_proc_readlink(struct inode *inode, struct page *page,
@@ -2071,7 +2469,7 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
int status;
nfs_fattr_init(&res.dir_attr);
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &args, &res, 1);
if (status == 0) {
update_changeattr(dir, &res.cinfo);
nfs_post_op_update_inode(dir, &res.dir_attr);
@@ -2106,8 +2504,10 @@ static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
+ nfs4_sequence_done(res->server, &res->seq_res, task->tk_status);
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
+ nfs4_sequence_free_slot(res->server->nfs_client, &res->seq_res);
update_changeattr(dir, &res->cinfo);
nfs_post_op_update_inode(dir, &res->dir_attr);
return 1;
@@ -2139,7 +2539,7 @@ static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
nfs_fattr_init(res.old_fattr);
nfs_fattr_init(res.new_fattr);
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &arg, &res, 1);
if (!status) {
update_changeattr(old_dir, &res.old_cinfo);
@@ -2188,7 +2588,7 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *
nfs_fattr_init(res.fattr);
nfs_fattr_init(res.dir_attr);
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &arg, &res, 1);
if (!status) {
update_changeattr(dir, &res.cinfo);
nfs_post_op_update_inode(dir, res.dir_attr);
@@ -2249,7 +2649,8 @@ static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_createdata *data)
{
- int status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
+ int status = nfs4_call_sync(NFS_SERVER(dir), &data->msg,
+ &data->arg, &data->res, 1);
if (status == 0) {
update_changeattr(dir, &data->res.dir_cinfo);
nfs_post_op_update_inode(dir, data->res.dir_fattr);
@@ -2358,7 +2759,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
(unsigned long long)cookie);
nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args);
res.pgbase = args.pgbase;
- status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ status = nfs4_call_sync(NFS_SERVER(dir), &msg, &args, &res, 0);
if (status == 0)
memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE);
@@ -2436,14 +2837,17 @@ static int _nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
.fh = fhandle,
.bitmask = server->attr_bitmask,
};
+ struct nfs4_statfs_res res = {
+ .fsstat = fsstat,
+ };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_STATFS],
.rpc_argp = &args,
- .rpc_resp = fsstat,
+ .rpc_resp = &res,
};
nfs_fattr_init(fsstat->fattr);
- return rpc_call_sync(server->client, &msg, 0);
+ return nfs4_call_sync(server, &msg, &args, &res, 0);
}
static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat)
@@ -2465,13 +2869,16 @@ static int _nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
.fh = fhandle,
.bitmask = server->attr_bitmask,
};
+ struct nfs4_fsinfo_res res = {
+ .fsinfo = fsinfo,
+ };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_FSINFO],
.rpc_argp = &args,
- .rpc_resp = fsinfo,
+ .rpc_resp = &res,
};
- return rpc_call_sync(server->client, &msg, 0);
+ return nfs4_call_sync(server, &msg, &args, &res, 0);
}
static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
@@ -2500,10 +2907,13 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle
.fh = fhandle,
.bitmask = server->attr_bitmask,
};
+ struct nfs4_pathconf_res res = {
+ .pathconf = pathconf,
+ };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_PATHCONF],
.rpc_argp = &args,
- .rpc_resp = pathconf,
+ .rpc_resp = &res,
};
/* None of the pathconf attributes are mandatory to implement */
@@ -2513,7 +2923,7 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle
}
nfs_fattr_init(pathconf->fattr);
- return rpc_call_sync(server->client, &msg, 0);
+ return nfs4_call_sync(server, &msg, &args, &res, 0);
}
static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
@@ -2534,8 +2944,13 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
struct nfs_server *server = NFS_SERVER(data->inode);
+ dprintk("--> %s\n", __func__);
+
+ /* nfs4_sequence_free_slot called in the read rpc_call_done */
+ nfs4_sequence_done(server, &data->res.seq_res, task->tk_status);
+
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, server->nfs_client);
return -EAGAIN;
}
@@ -2555,8 +2970,12 @@ static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
+ /* slot is freed in nfs_writeback_done */
+ nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
+ task->tk_status);
+
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
}
if (task->tk_status >= 0) {
@@ -2581,10 +3000,14 @@ static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
+ nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
+ task->tk_status);
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
}
+ nfs4_sequence_free_slot(NFS_SERVER(inode)->nfs_client,
+ &data->res.seq_res);
nfs_refresh_inode(inode, data->res.fattr);
return 0;
}
@@ -2617,6 +3040,9 @@ static void nfs4_renew_done(struct rpc_task *task, void *data)
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
+ dprintk("%s calling put_rpccred on rpc_cred %p\n", __func__,
+ task->tk_msg.rpc_cred);
+ put_rpccred(task->tk_msg.rpc_cred);
}
static const struct rpc_call_ops nfs4_renew_ops = {
@@ -2756,12 +3182,14 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
.acl_pages = pages,
.acl_len = buflen,
};
- size_t resp_len = buflen;
+ struct nfs_getaclres res = {
+ .acl_len = buflen,
+ };
void *resp_buf;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_GETACL],
.rpc_argp = &args,
- .rpc_resp = &resp_len,
+ .rpc_resp = &res,
};
struct page *localpage = NULL;
int ret;
@@ -2775,26 +3203,26 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
return -ENOMEM;
args.acl_pages[0] = localpage;
args.acl_pgbase = 0;
- resp_len = args.acl_len = PAGE_SIZE;
+ args.acl_len = PAGE_SIZE;
} else {
resp_buf = buf;
buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
}
- ret = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+ ret = nfs4_call_sync(NFS_SERVER(inode), &msg, &args, &res, 0);
if (ret)
goto out_free;
- if (resp_len > args.acl_len)
- nfs4_write_cached_acl(inode, NULL, resp_len);
+ if (res.acl_len > args.acl_len)
+ nfs4_write_cached_acl(inode, NULL, res.acl_len);
else
- nfs4_write_cached_acl(inode, resp_buf, resp_len);
+ nfs4_write_cached_acl(inode, resp_buf, res.acl_len);
if (buf) {
ret = -ERANGE;
- if (resp_len > buflen)
+ if (res.acl_len > buflen)
goto out_free;
if (localpage)
- memcpy(buf, resp_buf, resp_len);
+ memcpy(buf, resp_buf, res.acl_len);
}
- ret = resp_len;
+ ret = res.acl_len;
out_free:
if (localpage)
__free_page(localpage);
@@ -2839,10 +3267,11 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl
.acl_pages = pages,
.acl_len = buflen,
};
+ struct nfs_setaclres res;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETACL],
.rpc_argp = &arg,
- .rpc_resp = NULL,
+ .rpc_resp = &res,
};
int ret;
@@ -2850,7 +3279,7 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl
return -EOPNOTSUPP;
nfs_inode_return_delegation(inode);
buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
- ret = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+ ret = nfs4_call_sync(server, &msg, &arg, &res, 1);
nfs_access_zap_cache(inode);
nfs_zap_acl_cache(inode);
return ret;
@@ -2869,10 +3298,8 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
}
static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
+_nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs_client *clp, struct nfs4_state *state)
{
- struct nfs_client *clp = server->nfs_client;
-
if (!clp || task->tk_status >= 0)
return 0;
switch(task->tk_status) {
@@ -2891,8 +3318,23 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
task->tk_status = 0;
return -EAGAIN;
+#if defined(CONFIG_NFS_V4_1)
+ case -NFS4ERR_BADSESSION:
+ case -NFS4ERR_BADSLOT:
+ case -NFS4ERR_BAD_HIGH_SLOT:
+ case -NFS4ERR_DEADSESSION:
+ case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ case -NFS4ERR_SEQ_FALSE_RETRY:
+ case -NFS4ERR_SEQ_MISORDERED:
+ dprintk("%s ERROR %d, Reset session\n", __func__,
+ task->tk_status);
+ set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
+ task->tk_status = 0;
+ return -EAGAIN;
+#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
- nfs_inc_server_stats(server, NFSIOS_DELAY);
+ if (server)
+ nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
task->tk_status = 0;
@@ -2905,6 +3347,12 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
return 0;
}
+static int
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
+{
+ return _nfs4_async_handle_error(task, server, server->nfs_client, state);
+}
+
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, unsigned short port, struct rpc_cred *cred)
{
nfs4_verifier sc_verifier;
@@ -3012,6 +3460,10 @@ struct nfs4_delegreturndata {
static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
{
struct nfs4_delegreturndata *data = calldata;
+
+ nfs4_sequence_done_free_slot(data->res.server, &data->res.seq_res,
+ task->tk_status);
+
data->rpc_status = task->tk_status;
if (data->rpc_status == 0)
renew_lease(data->res.server, data->timestamp);
@@ -3022,7 +3474,25 @@ static void nfs4_delegreturn_release(void *calldata)
kfree(calldata);
}
+#if defined(CONFIG_NFS_V4_1)
+static void nfs4_delegreturn_prepare(struct rpc_task *task, void *data)
+{
+ struct nfs4_delegreturndata *d_data;
+
+ d_data = (struct nfs4_delegreturndata *)data;
+
+ if (nfs4_setup_sequence(d_data->res.server->nfs_client,
+ &d_data->args.seq_args,
+ &d_data->res.seq_res, 1, task))
+ return;
+ rpc_call_start(task);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
static const struct rpc_call_ops nfs4_delegreturn_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs4_delegreturn_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs4_delegreturn_done,
.rpc_release = nfs4_delegreturn_release,
};
@@ -3044,7 +3514,7 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
};
int status = 0;
- data = kmalloc(sizeof(*data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
data->args.fhandle = &data->fh;
@@ -3054,6 +3524,7 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
memcpy(&data->stateid, stateid, sizeof(data->stateid));
data->res.fattr = &data->fattr;
data->res.server = server;
+ data->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
nfs_fattr_init(data->res.fattr);
data->timestamp = jiffies;
data->rpc_status = 0;
@@ -3139,7 +3610,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
goto out;
lsp = request->fl_u.nfs4_fl.owner;
arg.lock_owner.id = lsp->ls_id.id;
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &arg, &res, 1);
switch (status) {
case 0:
request->fl_type = F_UNLCK;
@@ -3199,13 +3670,14 @@ static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl,
struct nfs4_unlockdata *p;
struct inode *inode = lsp->ls_state->inode;
- p = kmalloc(sizeof(*p), GFP_KERNEL);
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL)
return NULL;
p->arg.fh = NFS_FH(inode);
p->arg.fl = &p->fl;
p->arg.seqid = seqid;
p->res.seqid = seqid;
+ p->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
p->arg.stateid = &lsp->ls_stateid;
p->lsp = lsp;
atomic_inc(&lsp->ls_count);
@@ -3229,6 +3701,8 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
+ nfs4_sequence_done(calldata->server, &calldata->res.seq_res,
+ task->tk_status);
if (RPC_ASSASSINATED(task))
return;
switch (task->tk_status) {
@@ -3245,8 +3719,11 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
break;
default:
if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN)
- rpc_restart_call(task);
+ nfs4_restart_rpc(task,
+ calldata->server->nfs_client);
}
+ nfs4_sequence_free_slot(calldata->server->nfs_client,
+ &calldata->res.seq_res);
}
static void nfs4_locku_prepare(struct rpc_task *task, void *data)
@@ -3261,6 +3738,10 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
return;
}
calldata->timestamp = jiffies;
+ if (nfs4_setup_sequence(calldata->server->nfs_client,
+ &calldata->arg.seq_args,
+ &calldata->res.seq_res, 1, task))
+ return;
rpc_call_start(task);
}
@@ -3353,6 +3834,7 @@ struct nfs4_lockdata {
unsigned long timestamp;
int rpc_status;
int cancelled;
+ struct nfs_server *server;
};
static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
@@ -3378,7 +3860,9 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
p->arg.lock_owner.clientid = server->nfs_client->cl_clientid;
p->arg.lock_owner.id = lsp->ls_id.id;
p->res.lock_seqid = p->arg.lock_seqid;
+ p->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
p->lsp = lsp;
+ p->server = server;
atomic_inc(&lsp->ls_count);
p->ctx = get_nfs_open_context(ctx);
memcpy(&p->fl, fl, sizeof(p->fl));
@@ -3408,6 +3892,9 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
+ if (nfs4_setup_sequence(data->server->nfs_client, &data->arg.seq_args,
+ &data->res.seq_res, 1, task))
+ return;
rpc_call_start(task);
dprintk("%s: done!, ret = %d\n", __func__, data->rpc_status);
}
@@ -3418,6 +3905,9 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata)
dprintk("%s: begin!\n", __func__);
+ nfs4_sequence_done_free_slot(data->server, &data->res.seq_res,
+ task->tk_status);
+
data->rpc_status = task->tk_status;
if (RPC_ASSASSINATED(task))
goto out;
@@ -3747,10 +4237,13 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
.page = page,
.bitmask = bitmask,
};
+ struct nfs4_fs_locations_res res = {
+ .fs_locations = fs_locations,
+ };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_FS_LOCATIONS],
.rpc_argp = &args,
- .rpc_resp = fs_locations,
+ .rpc_resp = &res,
};
int status;
@@ -3758,24 +4251,720 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
nfs_fattr_init(&fs_locations->fattr);
fs_locations->server = server;
fs_locations->nlocations = 0;
- status = rpc_call_sync(server->client, &msg, 0);
+ status = nfs4_call_sync(server, &msg, &args, &res, 0);
nfs_fixup_referral_attributes(&fs_locations->fattr);
dprintk("%s: returned status = %d\n", __func__, status);
return status;
}
-struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = {
+#ifdef CONFIG_NFS_V4_1
+/*
+ * nfs4_proc_exchange_id()
+ *
+ * Since the clientid has expired, all compounds using sessions
+ * associated with the stale clientid will be returning
+ * NFS4ERR_BADSESSION in the sequence operation, and will therefore
+ * be in some phase of session reset.
+ */
+static int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ nfs4_verifier verifier;
+ struct nfs41_exchange_id_args args = {
+ .client = clp,
+ .flags = clp->cl_exchange_flags,
+ };
+ struct nfs41_exchange_id_res res = {
+ .client = clp,
+ };
+ int status;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID],
+ .rpc_argp = &args,
+ .rpc_resp = &res,
+ .rpc_cred = cred,
+ };
+ __be32 *p;
+
+ dprintk("--> %s\n", __func__);
+ BUG_ON(clp == NULL);
+
+ p = (u32 *)verifier.data;
+ *p++ = htonl((u32)clp->cl_boot_time.tv_sec);
+ *p = htonl((u32)clp->cl_boot_time.tv_nsec);
+ args.verifier = &verifier;
+
+ while (1) {
+ args.id_len = scnprintf(args.id, sizeof(args.id),
+ "%s/%s %u",
+ clp->cl_ipaddr,
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_ADDR),
+ clp->cl_id_uniquifier);
+
+ status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
+
+ if (status != NFS4ERR_CLID_INUSE)
+ break;
+
+ if (signalled())
+ break;
+
+ if (++clp->cl_id_uniquifier == 0)
+ break;
+ }
+
+ dprintk("<-- %s status= %d\n", __func__, status);
+ return status;
+}
+
+struct nfs4_get_lease_time_data {
+ struct nfs4_get_lease_time_args *args;
+ struct nfs4_get_lease_time_res *res;
+ struct nfs_client *clp;
+};
+
+static void nfs4_get_lease_time_prepare(struct rpc_task *task,
+ void *calldata)
+{
+ int ret;
+ struct nfs4_get_lease_time_data *data =
+ (struct nfs4_get_lease_time_data *)calldata;
+
+ dprintk("--> %s\n", __func__);
+ /* just setup sequence, do not trigger session recovery
+ since we're invoked within one */
+ ret = nfs41_setup_sequence(data->clp->cl_session,
+ &data->args->la_seq_args,
+ &data->res->lr_seq_res, 0, task);
+
+ BUG_ON(ret == -EAGAIN);
+ rpc_call_start(task);
+ dprintk("<-- %s\n", __func__);
+}
+
+/*
+ * Called from nfs4_state_manager thread for session setup, so don't recover
+ * from sequence operation or clientid errors.
+ */
+static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata)
+{
+ struct nfs4_get_lease_time_data *data =
+ (struct nfs4_get_lease_time_data *)calldata;
+
+ dprintk("--> %s\n", __func__);
+ nfs41_sequence_done(data->clp, &data->res->lr_seq_res, task->tk_status);
+ switch (task->tk_status) {
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_GRACE:
+ dprintk("%s Retry: tk_status %d\n", __func__, task->tk_status);
+ rpc_delay(task, NFS4_POLL_RETRY_MIN);
+ task->tk_status = 0;
+ nfs4_restart_rpc(task, data->clp);
+ return;
+ }
+ nfs41_sequence_free_slot(data->clp, &data->res->lr_seq_res);
+ dprintk("<-- %s\n", __func__);
+}
+
+struct rpc_call_ops nfs4_get_lease_time_ops = {
+ .rpc_call_prepare = nfs4_get_lease_time_prepare,
+ .rpc_call_done = nfs4_get_lease_time_done,
+};
+
+int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo)
+{
+ struct rpc_task *task;
+ struct nfs4_get_lease_time_args args;
+ struct nfs4_get_lease_time_res res = {
+ .lr_fsinfo = fsinfo,
+ };
+ struct nfs4_get_lease_time_data data = {
+ .args = &args,
+ .res = &res,
+ .clp = clp,
+ };
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_GET_LEASE_TIME],
+ .rpc_argp = &args,
+ .rpc_resp = &res,
+ };
+ struct rpc_task_setup task_setup = {
+ .rpc_client = clp->cl_rpcclient,
+ .rpc_message = &msg,
+ .callback_ops = &nfs4_get_lease_time_ops,
+ .callback_data = &data
+ };
+ int status;
+
+ res.lr_seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
+ dprintk("--> %s\n", __func__);
+ task = rpc_run_task(&task_setup);
+
+ if (IS_ERR(task))
+ status = PTR_ERR(task);
+ else {
+ status = task->tk_status;
+ rpc_put_task(task);
+ }
+ dprintk("<-- %s return %d\n", __func__, status);
+
+ return status;
+}
+
+/*
+ * Reset a slot table
+ */
+static int nfs4_reset_slot_table(struct nfs4_slot_table *tbl, int max_slots,
+ int old_max_slots, int ivalue)
+{
+ int i;
+ int ret = 0;
+
+ dprintk("--> %s: max_reqs=%u, tbl %p\n", __func__, max_slots, tbl);
+
+ /*
+ * Until we have dynamic slot table adjustment, insist
+ * upon the same slot table size
+ */
+ if (max_slots != old_max_slots) {
+ dprintk("%s reset slot table does't match old\n",
+ __func__);
+ ret = -EINVAL; /*XXX NFS4ERR_REQ_TOO_BIG ? */
+ goto out;
+ }
+ spin_lock(&tbl->slot_tbl_lock);
+ for (i = 0; i < max_slots; ++i)
+ tbl->slots[i].seq_nr = ivalue;
+ tbl->highest_used_slotid = -1;
+ spin_unlock(&tbl->slot_tbl_lock);
+ dprintk("%s: tbl=%p slots=%p max_slots=%d\n", __func__,
+ tbl, tbl->slots, tbl->max_slots);
+out:
+ dprintk("<-- %s: return %d\n", __func__, ret);
+ return ret;
+}
+
+/*
+ * Reset the forechannel and backchannel slot tables
+ */
+static int nfs4_reset_slot_tables(struct nfs4_session *session)
+{
+ int status;
+
+ status = nfs4_reset_slot_table(&session->fc_slot_table,
+ session->fc_attrs.max_reqs,
+ session->fc_slot_table.max_slots,
+ 1);
+ if (status)
+ return status;
+
+ status = nfs4_reset_slot_table(&session->bc_slot_table,
+ session->bc_attrs.max_reqs,
+ session->bc_slot_table.max_slots,
+ 0);
+ return status;
+}
+
+/* Destroy the slot table */
+static void nfs4_destroy_slot_tables(struct nfs4_session *session)
+{
+ if (session->fc_slot_table.slots != NULL) {
+ kfree(session->fc_slot_table.slots);
+ session->fc_slot_table.slots = NULL;
+ }
+ if (session->bc_slot_table.slots != NULL) {
+ kfree(session->bc_slot_table.slots);
+ session->bc_slot_table.slots = NULL;
+ }
+ return;
+}
+
+/*
+ * Initialize slot table
+ */
+static int nfs4_init_slot_table(struct nfs4_slot_table *tbl,
+ int max_slots, int ivalue)
+{
+ int i;
+ struct nfs4_slot *slot;
+ int ret = -ENOMEM;
+
+ BUG_ON(max_slots > NFS4_MAX_SLOT_TABLE);
+
+ dprintk("--> %s: max_reqs=%u\n", __func__, max_slots);
+
+ slot = kcalloc(max_slots, sizeof(struct nfs4_slot), GFP_KERNEL);
+ if (!slot)
+ goto out;
+ for (i = 0; i < max_slots; ++i)
+ slot[i].seq_nr = ivalue;
+ ret = 0;
+
+ spin_lock(&tbl->slot_tbl_lock);
+ if (tbl->slots != NULL) {
+ spin_unlock(&tbl->slot_tbl_lock);
+ dprintk("%s: slot table already initialized. tbl=%p slots=%p\n",
+ __func__, tbl, tbl->slots);
+ WARN_ON(1);
+ goto out_free;
+ }
+ tbl->max_slots = max_slots;
+ tbl->slots = slot;
+ tbl->highest_used_slotid = -1; /* no slot is currently used */
+ spin_unlock(&tbl->slot_tbl_lock);
+ dprintk("%s: tbl=%p slots=%p max_slots=%d\n", __func__,
+ tbl, tbl->slots, tbl->max_slots);
+out:
+ dprintk("<-- %s: return %d\n", __func__, ret);
+ return ret;
+
+out_free:
+ kfree(slot);
+ goto out;
+}
+
+/*
+ * Initialize the forechannel and backchannel tables
+ */
+static int nfs4_init_slot_tables(struct nfs4_session *session)
+{
+ int status;
+
+ status = nfs4_init_slot_table(&session->fc_slot_table,
+ session->fc_attrs.max_reqs, 1);
+ if (status)
+ return status;
+
+ status = nfs4_init_slot_table(&session->bc_slot_table,
+ session->bc_attrs.max_reqs, 0);
+ if (status)
+ nfs4_destroy_slot_tables(session);
+
+ return status;
+}
+
+struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
+{
+ struct nfs4_session *session;
+ struct nfs4_slot_table *tbl;
+
+ session = kzalloc(sizeof(struct nfs4_session), GFP_KERNEL);
+ if (!session)
+ return NULL;
+
+ set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
+ /*
+ * The create session reply races with the server back
+ * channel probe. Mark the client NFS_CS_SESSION_INITING
+ * so that the client back channel can find the
+ * nfs_client struct
+ */
+ clp->cl_cons_state = NFS_CS_SESSION_INITING;
+
+ tbl = &session->fc_slot_table;
+ spin_lock_init(&tbl->slot_tbl_lock);
+ rpc_init_wait_queue(&tbl->slot_tbl_waitq, "ForeChannel Slot table");
+
+ tbl = &session->bc_slot_table;
+ spin_lock_init(&tbl->slot_tbl_lock);
+ rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
+
+ session->clp = clp;
+ return session;
+}
+
+void nfs4_destroy_session(struct nfs4_session *session)
+{
+ nfs4_proc_destroy_session(session);
+ dprintk("%s Destroy backchannel for xprt %p\n",
+ __func__, session->clp->cl_rpcclient->cl_xprt);
+ xprt_destroy_backchannel(session->clp->cl_rpcclient->cl_xprt,
+ NFS41_BC_MIN_CALLBACKS);
+ nfs4_destroy_slot_tables(session);
+ kfree(session);
+}
+
+/*
+ * Initialize the values to be used by the client in CREATE_SESSION
+ * If nfs4_init_session set the fore channel request and response sizes,
+ * use them.
+ *
+ * Set the back channel max_resp_sz_cached to zero to force the client to
+ * always set csa_cachethis to FALSE because the current implementation
+ * of the back channel DRC only supports caching the CB_SEQUENCE operation.
+ */
+static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args)
+{
+ struct nfs4_session *session = args->client->cl_session;
+ unsigned int mxrqst_sz = session->fc_attrs.max_rqst_sz,
+ mxresp_sz = session->fc_attrs.max_resp_sz;
+
+ if (mxrqst_sz == 0)
+ mxrqst_sz = NFS_MAX_FILE_IO_SIZE;
+ if (mxresp_sz == 0)
+ mxresp_sz = NFS_MAX_FILE_IO_SIZE;
+ /* Fore channel attributes */
+ args->fc_attrs.headerpadsz = 0;
+ args->fc_attrs.max_rqst_sz = mxrqst_sz;
+ args->fc_attrs.max_resp_sz = mxresp_sz;
+ args->fc_attrs.max_resp_sz_cached = mxresp_sz;
+ args->fc_attrs.max_ops = NFS4_MAX_OPS;
+ args->fc_attrs.max_reqs = session->clp->cl_rpcclient->cl_xprt->max_reqs;
+
+ dprintk("%s: Fore Channel : max_rqst_sz=%u max_resp_sz=%u "
+ "max_resp_sz_cached=%u max_ops=%u max_reqs=%u\n",
+ __func__,
+ args->fc_attrs.max_rqst_sz, args->fc_attrs.max_resp_sz,
+ args->fc_attrs.max_resp_sz_cached, args->fc_attrs.max_ops,
+ args->fc_attrs.max_reqs);
+
+ /* Back channel attributes */
+ args->bc_attrs.headerpadsz = 0;
+ args->bc_attrs.max_rqst_sz = PAGE_SIZE;
+ args->bc_attrs.max_resp_sz = PAGE_SIZE;
+ args->bc_attrs.max_resp_sz_cached = 0;
+ args->bc_attrs.max_ops = NFS4_MAX_BACK_CHANNEL_OPS;
+ args->bc_attrs.max_reqs = 1;
+
+ dprintk("%s: Back Channel : max_rqst_sz=%u max_resp_sz=%u "
+ "max_resp_sz_cached=%u max_ops=%u max_reqs=%u\n",
+ __func__,
+ args->bc_attrs.max_rqst_sz, args->bc_attrs.max_resp_sz,
+ args->bc_attrs.max_resp_sz_cached, args->bc_attrs.max_ops,
+ args->bc_attrs.max_reqs);
+}
+
+static int _verify_channel_attr(char *chan, char *attr_name, u32 sent, u32 rcvd)
+{
+ if (rcvd <= sent)
+ return 0;
+ printk(KERN_WARNING "%s: Session INVALID: %s channel %s increased. "
+ "sent=%u rcvd=%u\n", __func__, chan, attr_name, sent, rcvd);
+ return -EINVAL;
+}
+
+#define _verify_fore_channel_attr(_name_) \
+ _verify_channel_attr("fore", #_name_, \
+ args->fc_attrs._name_, \
+ session->fc_attrs._name_)
+
+#define _verify_back_channel_attr(_name_) \
+ _verify_channel_attr("back", #_name_, \
+ args->bc_attrs._name_, \
+ session->bc_attrs._name_)
+
+/*
+ * The server is not allowed to increase the fore channel header pad size,
+ * maximum response size, or maximum number of operations.
+ *
+ * The back channel attributes are only negotiatied down: We send what the
+ * (back channel) server insists upon.
+ */
+static int nfs4_verify_channel_attrs(struct nfs41_create_session_args *args,
+ struct nfs4_session *session)
+{
+ int ret = 0;
+
+ ret |= _verify_fore_channel_attr(headerpadsz);
+ ret |= _verify_fore_channel_attr(max_resp_sz);
+ ret |= _verify_fore_channel_attr(max_ops);
+
+ ret |= _verify_back_channel_attr(headerpadsz);
+ ret |= _verify_back_channel_attr(max_rqst_sz);
+ ret |= _verify_back_channel_attr(max_resp_sz);
+ ret |= _verify_back_channel_attr(max_resp_sz_cached);
+ ret |= _verify_back_channel_attr(max_ops);
+ ret |= _verify_back_channel_attr(max_reqs);
+
+ return ret;
+}
+
+static int _nfs4_proc_create_session(struct nfs_client *clp)
+{
+ struct nfs4_session *session = clp->cl_session;
+ struct nfs41_create_session_args args = {
+ .client = clp,
+ .cb_program = NFS4_CALLBACK,
+ };
+ struct nfs41_create_session_res res = {
+ .client = clp,
+ };
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE_SESSION],
+ .rpc_argp = &args,
+ .rpc_resp = &res,
+ };
+ int status;
+
+ nfs4_init_channel_attrs(&args);
+ args.flags = (SESSION4_PERSIST | SESSION4_BACK_CHAN);
+
+ status = rpc_call_sync(session->clp->cl_rpcclient, &msg, 0);
+
+ if (!status)
+ /* Verify the session's negotiated channel_attrs values */
+ status = nfs4_verify_channel_attrs(&args, session);
+ if (!status) {
+ /* Increment the clientid slot sequence id */
+ clp->cl_seqid++;
+ }
+
+ return status;
+}
+
+/*
+ * Issues a CREATE_SESSION operation to the server.
+ * It is the responsibility of the caller to verify the session is
+ * expired before calling this routine.
+ */
+int nfs4_proc_create_session(struct nfs_client *clp, int reset)
+{
+ int status;
+ unsigned *ptr;
+ struct nfs_fsinfo fsinfo;
+ struct nfs4_session *session = clp->cl_session;
+
+ dprintk("--> %s clp=%p session=%p\n", __func__, clp, session);
+
+ status = _nfs4_proc_create_session(clp);
+ if (status)
+ goto out;
+
+ /* Init or reset the fore channel */
+ if (reset)
+ status = nfs4_reset_slot_tables(session);
+ else
+ status = nfs4_init_slot_tables(session);
+ dprintk("fore channel slot table initialization returned %d\n", status);
+ if (status)
+ goto out;
+
+ ptr = (unsigned *)&session->sess_id.data[0];
+ dprintk("%s client>seqid %d sessionid %u:%u:%u:%u\n", __func__,
+ clp->cl_seqid, ptr[0], ptr[1], ptr[2], ptr[3]);
+
+ if (reset)
+ /* Lease time is aleady set */
+ goto out;
+
+ /* Get the lease time */
+ status = nfs4_proc_get_lease_time(clp, &fsinfo);
+ if (status == 0) {
+ /* Update lease time and schedule renewal */
+ spin_lock(&clp->cl_lock);
+ clp->cl_lease_time = fsinfo.lease_time * HZ;
+ clp->cl_last_renewal = jiffies;
+ clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ spin_unlock(&clp->cl_lock);
+
+ nfs4_schedule_state_renewal(clp);
+ }
+out:
+ dprintk("<-- %s\n", __func__);
+ return status;
+}
+
+/*
+ * Issue the over-the-wire RPC DESTROY_SESSION.
+ * The caller must serialize access to this routine.
+ */
+int nfs4_proc_destroy_session(struct nfs4_session *session)
+{
+ int status = 0;
+ struct rpc_message msg;
+
+ dprintk("--> nfs4_proc_destroy_session\n");
+
+ /* session is still being setup */
+ if (session->clp->cl_cons_state != NFS_CS_READY)
+ return status;
+
+ msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_SESSION];
+ msg.rpc_argp = session;
+ msg.rpc_resp = NULL;
+ msg.rpc_cred = NULL;
+ status = rpc_call_sync(session->clp->cl_rpcclient, &msg, 0);
+
+ if (status)
+ printk(KERN_WARNING
+ "Got error %d from the server on DESTROY_SESSION. "
+ "Session has been destroyed regardless...\n", status);
+
+ dprintk("<-- nfs4_proc_destroy_session\n");
+ return status;
+}
+
+/*
+ * Renew the cl_session lease.
+ */
+static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct nfs4_sequence_args args;
+ struct nfs4_sequence_res res;
+
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
+ .rpc_argp = &args,
+ .rpc_resp = &res,
+ .rpc_cred = cred,
+ };
+
+ args.sa_cache_this = 0;
+
+ return nfs4_call_sync_sequence(clp, clp->cl_rpcclient, &msg, &args,
+ &res, 0);
+}
+
+void nfs41_sequence_call_done(struct rpc_task *task, void *data)
+{
+ struct nfs_client *clp = (struct nfs_client *)data;
+
+ nfs41_sequence_done(clp, task->tk_msg.rpc_resp, task->tk_status);
+
+ if (task->tk_status < 0) {
+ dprintk("%s ERROR %d\n", __func__, task->tk_status);
+
+ if (_nfs4_async_handle_error(task, NULL, clp, NULL)
+ == -EAGAIN) {
+ nfs4_restart_rpc(task, clp);
+ return;
+ }
+ }
+ nfs41_sequence_free_slot(clp, task->tk_msg.rpc_resp);
+ dprintk("%s rpc_cred %p\n", __func__, task->tk_msg.rpc_cred);
+
+ put_rpccred(task->tk_msg.rpc_cred);
+ kfree(task->tk_msg.rpc_argp);
+ kfree(task->tk_msg.rpc_resp);
+
+ dprintk("<-- %s\n", __func__);
+}
+
+static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
+{
+ struct nfs_client *clp;
+ struct nfs4_sequence_args *args;
+ struct nfs4_sequence_res *res;
+
+ clp = (struct nfs_client *)data;
+ args = task->tk_msg.rpc_argp;
+ res = task->tk_msg.rpc_resp;
+
+ if (nfs4_setup_sequence(clp, args, res, 0, task))
+ return;
+ rpc_call_start(task);
+}
+
+static const struct rpc_call_ops nfs41_sequence_ops = {
+ .rpc_call_done = nfs41_sequence_call_done,
+ .rpc_call_prepare = nfs41_sequence_prepare,
+};
+
+static int nfs41_proc_async_sequence(struct nfs_client *clp,
+ struct rpc_cred *cred)
+{
+ struct nfs4_sequence_args *args;
+ struct nfs4_sequence_res *res;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
+ .rpc_cred = cred,
+ };
+
+ args = kzalloc(sizeof(*args), GFP_KERNEL);
+ if (!args)
+ return -ENOMEM;
+ res = kzalloc(sizeof(*res), GFP_KERNEL);
+ if (!res) {
+ kfree(args);
+ return -ENOMEM;
+ }
+ res->sr_slotid = NFS4_MAX_SLOT_TABLE;
+ msg.rpc_argp = args;
+ msg.rpc_resp = res;
+
+ return rpc_call_async(clp->cl_rpcclient, &msg, RPC_TASK_SOFT,
+ &nfs41_sequence_ops, (void *)clp);
+}
+
+#endif /* CONFIG_NFS_V4_1 */
+
+struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT,
.state_flag_bit = NFS_STATE_RECLAIM_REBOOT,
.recover_open = nfs4_open_reclaim,
.recover_lock = nfs4_lock_reclaim,
+ .establish_clid = nfs4_init_clientid,
+ .get_clid_cred = nfs4_get_setclientid_cred,
};
-struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops = {
+#if defined(CONFIG_NFS_V4_1)
+struct nfs4_state_recovery_ops nfs41_reboot_recovery_ops = {
+ .owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT,
+ .state_flag_bit = NFS_STATE_RECLAIM_REBOOT,
+ .recover_open = nfs4_open_reclaim,
+ .recover_lock = nfs4_lock_reclaim,
+ .establish_clid = nfs4_proc_exchange_id,
+ .get_clid_cred = nfs4_get_exchange_id_cred,
+};
+#endif /* CONFIG_NFS_V4_1 */
+
+struct nfs4_state_recovery_ops nfs40_nograce_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE,
.state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
.recover_open = nfs4_open_expired,
.recover_lock = nfs4_lock_expired,
+ .establish_clid = nfs4_init_clientid,
+ .get_clid_cred = nfs4_get_setclientid_cred,
+};
+
+#if defined(CONFIG_NFS_V4_1)
+struct nfs4_state_recovery_ops nfs41_nograce_recovery_ops = {
+ .owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE,
+ .state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
+ .recover_open = nfs4_open_expired,
+ .recover_lock = nfs4_lock_expired,
+ .establish_clid = nfs4_proc_exchange_id,
+ .get_clid_cred = nfs4_get_exchange_id_cred,
+};
+#endif /* CONFIG_NFS_V4_1 */
+
+struct nfs4_state_maintenance_ops nfs40_state_renewal_ops = {
+ .sched_state_renewal = nfs4_proc_async_renew,
+ .get_state_renewal_cred_locked = nfs4_get_renew_cred_locked,
+ .renew_lease = nfs4_proc_renew,
+};
+
+#if defined(CONFIG_NFS_V4_1)
+struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
+ .sched_state_renewal = nfs41_proc_async_sequence,
+ .get_state_renewal_cred_locked = nfs4_get_machine_cred_locked,
+ .renew_lease = nfs4_proc_sequence,
+};
+#endif
+
+/*
+ * Per minor version reboot and network partition recovery ops
+ */
+
+struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[] = {
+ &nfs40_reboot_recovery_ops,
+#if defined(CONFIG_NFS_V4_1)
+ &nfs41_reboot_recovery_ops,
+#endif
+};
+
+struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[] = {
+ &nfs40_nograce_recovery_ops,
+#if defined(CONFIG_NFS_V4_1)
+ &nfs41_nograce_recovery_ops,
+#endif
+};
+
+struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
+ &nfs40_state_renewal_ops,
+#if defined(CONFIG_NFS_V4_1)
+ &nfs41_state_renewal_ops,
+#endif
};
static const struct inode_operations nfs4_file_inode_operations = {
diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index f524e932ff7..e27c6cef18f 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -59,12 +59,14 @@
void
nfs4_renew_state(struct work_struct *work)
{
+ struct nfs4_state_maintenance_ops *ops;
struct nfs_client *clp =
container_of(work, struct nfs_client, cl_renewd.work);
struct rpc_cred *cred;
long lease, timeout;
unsigned long last, now;
+ ops = nfs4_state_renewal_ops[clp->cl_minorversion];
dprintk("%s: start\n", __func__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
@@ -76,7 +78,7 @@ nfs4_renew_state(struct work_struct *work)
timeout = (2 * lease) / 3 + (long)last - (long)now;
/* Are we close to a lease timeout? */
if (time_after(now, last + lease/3)) {
- cred = nfs4_get_renew_cred_locked(clp);
+ cred = ops->get_state_renewal_cred_locked(clp);
spin_unlock(&clp->cl_lock);
if (cred == NULL) {
if (list_empty(&clp->cl_delegations)) {
@@ -86,7 +88,7 @@ nfs4_renew_state(struct work_struct *work)
nfs_expire_all_delegations(clp);
} else {
/* Queue an asynchronous RENEW. */
- nfs4_proc_async_renew(clp, cred);
+ ops->sched_state_renewal(clp, cred);
put_rpccred(cred);
}
timeout = (2 * lease) / 3;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 0b2a19bfe5a..b73c5a72865 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -60,7 +60,7 @@ const nfs4_stateid zero_stateid;
static LIST_HEAD(nfs4_clientid_list);
-static int nfs4_init_client(struct nfs_client *clp, struct rpc_cred *cred)
+int nfs4_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
{
unsigned short port;
int status;
@@ -77,7 +77,7 @@ static int nfs4_init_client(struct nfs_client *clp, struct rpc_cred *cred)
return status;
}
-static struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp)
+struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp)
{
struct rpc_cred *cred = NULL;
@@ -114,17 +114,21 @@ struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp)
return cred;
}
-static struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp)
+#if defined(CONFIG_NFS_V4_1)
+
+struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp)
{
struct rpc_cred *cred;
spin_lock(&clp->cl_lock);
- cred = nfs4_get_renew_cred_locked(clp);
+ cred = nfs4_get_machine_cred_locked(clp);
spin_unlock(&clp->cl_lock);
return cred;
}
-static struct rpc_cred *nfs4_get_setclientid_cred(struct nfs_client *clp)
+#endif /* CONFIG_NFS_V4_1 */
+
+struct rpc_cred *nfs4_get_setclientid_cred(struct nfs_client *clp)
{
struct nfs4_state_owner *sp;
struct rb_node *pos;
@@ -738,12 +742,14 @@ static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid)
{
- if (status == -NFS4ERR_BAD_SEQID) {
- struct nfs4_state_owner *sp = container_of(seqid->sequence,
- struct nfs4_state_owner, so_seqid);
+ struct nfs4_state_owner *sp = container_of(seqid->sequence,
+ struct nfs4_state_owner, so_seqid);
+ struct nfs_server *server = sp->so_server;
+
+ if (status == -NFS4ERR_BAD_SEQID)
nfs4_drop_state_owner(sp);
- }
- nfs_increment_seqid(status, seqid);
+ if (!nfs4_has_session(server->nfs_client))
+ nfs_increment_seqid(status, seqid);
}
/*
@@ -1059,6 +1065,14 @@ static void nfs4_recovery_handle_error(struct nfs_client *clp, int error)
case -NFS4ERR_EXPIRED:
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
nfs4_state_start_reclaim_nograce(clp);
+ case -NFS4ERR_BADSESSION:
+ case -NFS4ERR_BADSLOT:
+ case -NFS4ERR_BAD_HIGH_SLOT:
+ case -NFS4ERR_DEADSESSION:
+ case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ case -NFS4ERR_SEQ_FALSE_RETRY:
+ case -NFS4ERR_SEQ_MISORDERED:
+ set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
}
}
@@ -1092,18 +1106,22 @@ restart:
static int nfs4_check_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
+ struct nfs4_state_maintenance_ops *ops =
+ nfs4_state_renewal_ops[clp->cl_minorversion];
int status = -NFS4ERR_EXPIRED;
/* Is the client already known to have an expired lease? */
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
return 0;
- cred = nfs4_get_renew_cred(clp);
+ spin_lock(&clp->cl_lock);
+ cred = ops->get_state_renewal_cred_locked(clp);
+ spin_unlock(&clp->cl_lock);
if (cred == NULL) {
cred = nfs4_get_setclientid_cred(clp);
if (cred == NULL)
goto out;
}
- status = nfs4_proc_renew(clp, cred);
+ status = ops->renew_lease(clp, cred);
put_rpccred(cred);
out:
nfs4_recovery_handle_error(clp, status);
@@ -1113,21 +1131,98 @@ out:
static int nfs4_reclaim_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
+ struct nfs4_state_recovery_ops *ops =
+ nfs4_reboot_recovery_ops[clp->cl_minorversion];
int status = -ENOENT;
- cred = nfs4_get_setclientid_cred(clp);
+ cred = ops->get_clid_cred(clp);
if (cred != NULL) {
- status = nfs4_init_client(clp, cred);
+ status = ops->establish_clid(clp, cred);
put_rpccred(cred);
/* Handle case where the user hasn't set up machine creds */
if (status == -EACCES && cred == clp->cl_machine_cred) {
nfs4_clear_machine_cred(clp);
status = -EAGAIN;
}
+ if (status == -NFS4ERR_MINOR_VERS_MISMATCH)
+ status = -EPROTONOSUPPORT;
}
return status;
}
+#ifdef CONFIG_NFS_V4_1
+static void nfs4_session_recovery_handle_error(struct nfs_client *clp, int err)
+{
+ switch (err) {
+ case -NFS4ERR_STALE_CLIENTID:
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
+ }
+}
+
+static int nfs4_reset_session(struct nfs_client *clp)
+{
+ int status;
+
+ status = nfs4_proc_destroy_session(clp->cl_session);
+ if (status && status != -NFS4ERR_BADSESSION &&
+ status != -NFS4ERR_DEADSESSION) {
+ nfs4_session_recovery_handle_error(clp, status);
+ goto out;
+ }
+
+ memset(clp->cl_session->sess_id.data, 0, NFS4_MAX_SESSIONID_LEN);
+ status = nfs4_proc_create_session(clp, 1);
+ if (status)
+ nfs4_session_recovery_handle_error(clp, status);
+ /* fall through*/
+out:
+ /* Wake up the next rpc task even on error */
+ rpc_wake_up_next(&clp->cl_session->fc_slot_table.slot_tbl_waitq);
+ return status;
+}
+
+static int nfs4_initialize_session(struct nfs_client *clp)
+{
+ int status;
+
+ status = nfs4_proc_create_session(clp, 0);
+ if (!status) {
+ nfs_mark_client_ready(clp, NFS_CS_READY);
+ } else if (status == -NFS4ERR_STALE_CLIENTID) {
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
+ } else {
+ nfs_mark_client_ready(clp, status);
+ }
+ return status;
+}
+#else /* CONFIG_NFS_V4_1 */
+static int nfs4_reset_session(struct nfs_client *clp) { return 0; }
+static int nfs4_initialize_session(struct nfs_client *clp) { return 0; }
+#endif /* CONFIG_NFS_V4_1 */
+
+/* Set NFS4CLNT_LEASE_EXPIRED for all v4.0 errors and for recoverable errors
+ * on EXCHANGE_ID for v4.1
+ */
+static void nfs4_set_lease_expired(struct nfs_client *clp, int status)
+{
+ if (nfs4_has_session(clp)) {
+ switch (status) {
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_CLID_INUSE:
+ case -EAGAIN:
+ break;
+
+ case -NFS4ERR_NOT_SAME: /* FixMe: implement recovery
+ * in nfs4_exchange_id */
+ default:
+ return;
+ }
+ }
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+}
+
static void nfs4_state_manager(struct nfs_client *clp)
{
int status = 0;
@@ -1138,9 +1233,12 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* We're going to have to re-establish a clientid */
status = nfs4_reclaim_lease(clp);
if (status) {
- set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ nfs4_set_lease_expired(clp, status);
if (status == -EAGAIN)
continue;
+ if (clp->cl_cons_state ==
+ NFS_CS_SESSION_INITING)
+ nfs_mark_client_ready(clp, status);
goto out_error;
}
clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
@@ -1151,25 +1249,44 @@ static void nfs4_state_manager(struct nfs_client *clp)
if (status != 0)
continue;
}
-
+ /* Initialize or reset the session */
+ if (nfs4_has_session(clp) &&
+ test_and_clear_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state)) {
+ if (clp->cl_cons_state == NFS_CS_SESSION_INITING)
+ status = nfs4_initialize_session(clp);
+ else
+ status = nfs4_reset_session(clp);
+ if (status) {
+ if (status == -NFS4ERR_STALE_CLIENTID)
+ continue;
+ goto out_error;
+ }
+ }
/* First recover reboot state... */
if (test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
- status = nfs4_do_reclaim(clp, &nfs4_reboot_recovery_ops);
+ status = nfs4_do_reclaim(clp,
+ nfs4_reboot_recovery_ops[clp->cl_minorversion]);
if (status == -NFS4ERR_STALE_CLIENTID)
continue;
+ if (test_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state))
+ continue;
nfs4_state_end_reclaim_reboot(clp);
continue;
}
/* Now recover expired state... */
if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) {
- status = nfs4_do_reclaim(clp, &nfs4_nograce_recovery_ops);
+ status = nfs4_do_reclaim(clp,
+ nfs4_nograce_recovery_ops[clp->cl_minorversion]);
if (status < 0) {
set_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state);
if (status == -NFS4ERR_STALE_CLIENTID)
continue;
if (status == -NFS4ERR_EXPIRED)
continue;
+ if (test_bit(NFS4CLNT_SESSION_SETUP,
+ &clp->cl_state))
+ continue;
goto out_error;
} else
nfs4_state_end_reclaim_nograce(clp);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 1690f0e44b9..617273e7d47 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -192,12 +192,16 @@ static int nfs4_stat_to_errno(int);
decode_verifier_maxsz)
#define encode_remove_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
+#define decode_remove_maxsz (op_decode_hdr_maxsz + \
+ decode_change_info_maxsz)
#define encode_rename_maxsz (op_encode_hdr_maxsz + \
2 * nfs4_name_maxsz)
-#define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5)
+#define decode_rename_maxsz (op_decode_hdr_maxsz + \
+ decode_change_info_maxsz + \
+ decode_change_info_maxsz)
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
-#define decode_link_maxsz (op_decode_hdr_maxsz + 5)
+#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
1 + encode_stateid_maxsz + 8)
@@ -240,43 +244,115 @@ static int nfs4_stat_to_errno(int);
(encode_getattr_maxsz)
#define decode_fs_locations_maxsz \
(0)
+
+#if defined(CONFIG_NFS_V4_1)
+#define NFS4_MAX_MACHINE_NAME_LEN (64)
+
+#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
+ encode_verifier_maxsz + \
+ 1 /* co_ownerid.len */ + \
+ XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
+ 1 /* flags */ + \
+ 1 /* spa_how */ + \
+ 0 /* SP4_NONE (for now) */ + \
+ 1 /* zero implemetation id array */)
+#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
+ 2 /* eir_clientid */ + \
+ 1 /* eir_sequenceid */ + \
+ 1 /* eir_flags */ + \
+ 1 /* spr_how */ + \
+ 0 /* SP4_NONE (for now) */ + \
+ 2 /* eir_server_owner.so_minor_id */ + \
+ /* eir_server_owner.so_major_id<> */ \
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
+ /* eir_server_scope<> */ \
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
+ 1 /* eir_server_impl_id array length */ + \
+ 0 /* ignored eir_server_impl_id contents */)
+#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
+#define decode_channel_attrs_maxsz (6 + \
+ 1 /* ca_rdma_ird.len */ + \
+ 1 /* ca_rdma_ird */)
+#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
+ 2 /* csa_clientid */ + \
+ 1 /* csa_sequence */ + \
+ 1 /* csa_flags */ + \
+ encode_channel_attrs_maxsz + \
+ encode_channel_attrs_maxsz + \
+ 1 /* csa_cb_program */ + \
+ 1 /* csa_sec_parms.len (1) */ + \
+ 1 /* cb_secflavor (AUTH_SYS) */ + \
+ 1 /* stamp */ + \
+ 1 /* machinename.len */ + \
+ XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
+ 1 /* uid */ + \
+ 1 /* gid */ + \
+ 1 /* gids.len (0) */)
+#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
+ 1 /* csr_sequence */ + \
+ 1 /* csr_flags */ + \
+ decode_channel_attrs_maxsz + \
+ decode_channel_attrs_maxsz)
+#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
+#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
+#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
+#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
+#else /* CONFIG_NFS_V4_1 */
+#define encode_sequence_maxsz 0
+#define decode_sequence_maxsz 0
+#endif /* CONFIG_NFS_V4_1 */
+
#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_read_maxsz)
#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_read_maxsz)
#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_readlink_maxsz)
#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_readlink_maxsz)
#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_readdir_maxsz)
#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_readdir_maxsz)
#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_write_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_write_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_commit_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_commit_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_open_maxsz + \
@@ -285,6 +361,7 @@ static int nfs4_stat_to_errno(int);
encode_restorefh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_open_maxsz + \
@@ -301,43 +378,53 @@ static int nfs4_stat_to_errno(int);
decode_putfh_maxsz + \
decode_open_confirm_maxsz)
#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_open_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_open_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_open_downgrade_sz \
(compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_open_downgrade_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_open_downgrade_sz \
(compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_open_downgrade_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_close_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_close_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_setattr_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_setattr_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_fsinfo_maxsz)
#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_fsinfo_maxsz)
#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
@@ -359,64 +446,81 @@ static int nfs4_stat_to_errno(int);
decode_putrootfh_maxsz + \
decode_fsinfo_maxsz)
#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_lock_maxsz)
#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_lock_maxsz)
#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_lockt_maxsz)
#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_lockt_maxsz)
#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_locku_maxsz)
#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_locku_maxsz)
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_access_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_access_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_lookup_maxsz + \
encode_getattr_maxsz + \
encode_getfh_maxsz)
#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_lookup_maxsz + \
decode_getattr_maxsz + \
decode_getfh_maxsz)
#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putrootfh_maxsz + \
encode_getattr_maxsz + \
encode_getfh_maxsz)
#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putrootfh_maxsz + \
decode_getattr_maxsz + \
decode_getfh_maxsz)
#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_remove_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
- op_decode_hdr_maxsz + 5 + \
+ decode_remove_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
@@ -425,6 +529,7 @@ static int nfs4_stat_to_errno(int);
encode_restorefh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
@@ -433,6 +538,7 @@ static int nfs4_stat_to_errno(int);
decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
@@ -441,6 +547,7 @@ static int nfs4_stat_to_errno(int);
encode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
@@ -449,16 +556,19 @@ static int nfs4_stat_to_errno(int);
decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_symlink_maxsz + \
encode_getattr_maxsz + \
encode_getfh_maxsz)
#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_symlink_maxsz + \
decode_getattr_maxsz + \
decode_getfh_maxsz)
#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_create_maxsz + \
@@ -467,6 +577,7 @@ static int nfs4_stat_to_errno(int);
encode_restorefh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_create_maxsz + \
@@ -475,52 +586,98 @@ static int nfs4_stat_to_errno(int);
decode_restorefh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_statfs_maxsz)
#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_statfs_maxsz)
#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_delegreturn_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_delegreturn_maxsz + \
decode_getattr_maxsz)
#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_getacl_maxsz)
#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_getacl_maxsz)
#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_setacl_maxsz)
#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_setacl_maxsz)
#define NFS4_enc_fs_locations_sz \
(compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
encode_putfh_maxsz + \
encode_lookup_maxsz + \
encode_fs_locations_maxsz)
#define NFS4_dec_fs_locations_sz \
(compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_lookup_maxsz + \
decode_fs_locations_maxsz)
+#if defined(CONFIG_NFS_V4_1)
+#define NFS4_enc_exchange_id_sz \
+ (compound_encode_hdr_maxsz + \
+ encode_exchange_id_maxsz)
+#define NFS4_dec_exchange_id_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_exchange_id_maxsz)
+#define NFS4_enc_create_session_sz \
+ (compound_encode_hdr_maxsz + \
+ encode_create_session_maxsz)
+#define NFS4_dec_create_session_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_create_session_maxsz)
+#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
+ encode_destroy_session_maxsz)
+#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
+ decode_destroy_session_maxsz)
+#define NFS4_enc_sequence_sz \
+ (compound_decode_hdr_maxsz + \
+ encode_sequence_maxsz)
+#define NFS4_dec_sequence_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz)
+#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
+ encode_putrootfh_maxsz + \
+ encode_fsinfo_maxsz)
+#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
+ decode_putrootfh_maxsz + \
+ decode_fsinfo_maxsz)
+#endif /* CONFIG_NFS_V4_1 */
static const umode_t nfs_type2fmt[] = {
[NF4BAD] = 0,
@@ -541,6 +698,8 @@ struct compound_hdr {
__be32 * nops_p;
uint32_t taglen;
char * tag;
+ uint32_t replen; /* expected reply words */
+ u32 minorversion;
};
/*
@@ -576,22 +735,31 @@ static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *
xdr_encode_opaque(p, str, len);
}
-static void encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
+static void encode_compound_hdr(struct xdr_stream *xdr,
+ struct rpc_rqst *req,
+ struct compound_hdr *hdr)
{
__be32 *p;
+ struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+
+ /* initialize running count of expected bytes in reply.
+ * NOTE: the replied tag SHOULD be the same is the one sent,
+ * but this is not required as a MUST for the server to do so. */
+ hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2));
WRITE32(hdr->taglen);
WRITEMEM(hdr->tag, hdr->taglen);
- WRITE32(NFS4_MINOR_VERSION);
+ WRITE32(hdr->minorversion);
hdr->nops_p = p;
WRITE32(hdr->nops);
}
static void encode_nops(struct compound_hdr *hdr)
{
+ BUG_ON(hdr->nops > NFS4_MAX_OPS);
*hdr->nops_p = htonl(hdr->nops);
}
@@ -736,6 +904,7 @@ static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hd
WRITE32(OP_ACCESS);
WRITE32(access);
hdr->nops++;
+ hdr->replen += decode_access_maxsz;
}
static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
@@ -747,6 +916,7 @@ static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg
WRITE32(arg->seqid->sequence->counter);
WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE);
hdr->nops++;
+ hdr->replen += decode_close_maxsz;
}
static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
@@ -758,6 +928,7 @@ static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *ar
WRITE64(args->offset);
WRITE32(args->count);
hdr->nops++;
+ hdr->replen += decode_commit_maxsz;
}
static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
@@ -789,6 +960,7 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
WRITE32(create->name->len);
WRITEMEM(create->name->name, create->name->len);
hdr->nops++;
+ hdr->replen += decode_create_maxsz;
encode_attrs(xdr, create->attrs, create->server);
}
@@ -802,6 +974,7 @@ static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct c
WRITE32(1);
WRITE32(bitmap);
hdr->nops++;
+ hdr->replen += decode_getattr_maxsz;
}
static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
@@ -814,6 +987,7 @@ static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm
WRITE32(bm0);
WRITE32(bm1);
hdr->nops++;
+ hdr->replen += decode_getattr_maxsz;
}
static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
@@ -841,6 +1015,7 @@ static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
RESERVE_SPACE(4);
WRITE32(OP_GETFH);
hdr->nops++;
+ hdr->replen += decode_getfh_maxsz;
}
static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
@@ -852,6 +1027,7 @@ static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct
WRITE32(name->len);
WRITEMEM(name->name, name->len);
hdr->nops++;
+ hdr->replen += decode_link_maxsz;
}
static inline int nfs4_lock_type(struct file_lock *fl, int block)
@@ -899,6 +1075,7 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
WRITE32(args->lock_seqid->sequence->counter);
}
hdr->nops++;
+ hdr->replen += decode_lock_maxsz;
}
static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
@@ -915,6 +1092,7 @@ static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *ar
WRITEMEM("lock id:", 8);
WRITE64(args->lock_owner.id);
hdr->nops++;
+ hdr->replen += decode_lockt_maxsz;
}
static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
@@ -929,6 +1107,7 @@ static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *ar
WRITE64(args->fl->fl_start);
WRITE64(nfs4_lock_length(args->fl));
hdr->nops++;
+ hdr->replen += decode_locku_maxsz;
}
static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
@@ -941,6 +1120,7 @@ static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struc
WRITE32(len);
WRITEMEM(name->name, len);
hdr->nops++;
+ hdr->replen += decode_lookup_maxsz;
}
static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
@@ -1080,6 +1260,7 @@ static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg,
BUG();
}
hdr->nops++;
+ hdr->replen += decode_open_maxsz;
}
static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
@@ -1091,6 +1272,7 @@ static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_co
WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE);
WRITE32(arg->seqid->sequence->counter);
hdr->nops++;
+ hdr->replen += decode_open_confirm_maxsz;
}
static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
@@ -1103,6 +1285,7 @@ static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_close
WRITE32(arg->seqid->sequence->counter);
encode_share_access(xdr, arg->fmode);
hdr->nops++;
+ hdr->replen += decode_open_downgrade_maxsz;
}
static void
@@ -1116,6 +1299,7 @@ encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hd
WRITE32(len);
WRITEMEM(fh->data, len);
hdr->nops++;
+ hdr->replen += decode_putfh_maxsz;
}
static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
@@ -1125,6 +1309,7 @@ static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
RESERVE_SPACE(4);
WRITE32(OP_PUTROOTFH);
hdr->nops++;
+ hdr->replen += decode_putrootfh_maxsz;
}
static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
@@ -1153,6 +1338,7 @@ static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args,
WRITE64(args->offset);
WRITE32(args->count);
hdr->nops++;
+ hdr->replen += decode_read_maxsz;
}
static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
@@ -1178,6 +1364,7 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
WRITE32(attrs[0] & readdir->bitmask[0]);
WRITE32(attrs[1] & readdir->bitmask[1]);
hdr->nops++;
+ hdr->replen += decode_readdir_maxsz;
dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
__func__,
(unsigned long long)readdir->cookie,
@@ -1194,6 +1381,7 @@ static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *
RESERVE_SPACE(4);
WRITE32(OP_READLINK);
hdr->nops++;
+ hdr->replen += decode_readlink_maxsz;
}
static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
@@ -1205,6 +1393,7 @@ static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struc
WRITE32(name->len);
WRITEMEM(name->name, name->len);
hdr->nops++;
+ hdr->replen += decode_remove_maxsz;
}
static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
@@ -1220,6 +1409,7 @@ static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, co
WRITE32(newname->len);
WRITEMEM(newname->name, newname->len);
hdr->nops++;
+ hdr->replen += decode_rename_maxsz;
}
static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
@@ -1230,6 +1420,7 @@ static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client
WRITE32(OP_RENEW);
WRITE64(client_stateid->cl_clientid);
hdr->nops++;
+ hdr->replen += decode_renew_maxsz;
}
static void
@@ -1240,6 +1431,7 @@ encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
RESERVE_SPACE(4);
WRITE32(OP_RESTOREFH);
hdr->nops++;
+ hdr->replen += decode_restorefh_maxsz;
}
static int
@@ -1259,6 +1451,7 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun
WRITE32(arg->acl_len);
xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
hdr->nops++;
+ hdr->replen += decode_setacl_maxsz;
return 0;
}
@@ -1270,6 +1463,7 @@ encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
RESERVE_SPACE(4);
WRITE32(OP_SAVEFH);
hdr->nops++;
+ hdr->replen += decode_savefh_maxsz;
}
static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
@@ -1280,6 +1474,7 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs
WRITE32(OP_SETATTR);
WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE);
hdr->nops++;
+ hdr->replen += decode_setattr_maxsz;
encode_attrs(xdr, arg->iap, server);
}
@@ -1299,6 +1494,7 @@ static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclie
RESERVE_SPACE(4);
WRITE32(setclientid->sc_cb_ident);
hdr->nops++;
+ hdr->replen += decode_setclientid_maxsz;
}
static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr)
@@ -1310,6 +1506,7 @@ static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_
WRITE64(client_state->cl_clientid);
WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
hdr->nops++;
+ hdr->replen += decode_setclientid_confirm_maxsz;
}
static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
@@ -1328,6 +1525,7 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg
xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
hdr->nops++;
+ hdr->replen += decode_write_maxsz;
}
static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
@@ -1339,11 +1537,163 @@ static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *state
WRITE32(OP_DELEGRETURN);
WRITEMEM(stateid->data, NFS4_STATEID_SIZE);
hdr->nops++;
+ hdr->replen += decode_delegreturn_maxsz;
+}
+
+#if defined(CONFIG_NFS_V4_1)
+/* NFSv4.1 operations */
+static void encode_exchange_id(struct xdr_stream *xdr,
+ struct nfs41_exchange_id_args *args,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ RESERVE_SPACE(4 + sizeof(args->verifier->data));
+ WRITE32(OP_EXCHANGE_ID);
+ WRITEMEM(args->verifier->data, sizeof(args->verifier->data));
+
+ encode_string(xdr, args->id_len, args->id);
+
+ RESERVE_SPACE(12);
+ WRITE32(args->flags);
+ WRITE32(0); /* zero length state_protect4_a */
+ WRITE32(0); /* zero length implementation id array */
+ hdr->nops++;
+ hdr->replen += decode_exchange_id_maxsz;
+}
+
+static void encode_create_session(struct xdr_stream *xdr,
+ struct nfs41_create_session_args *args,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+ char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
+ uint32_t len;
+ struct nfs_client *clp = args->client;
+
+ RESERVE_SPACE(4);
+ WRITE32(OP_CREATE_SESSION);
+
+ RESERVE_SPACE(8);
+ WRITE64(clp->cl_ex_clid);
+
+ RESERVE_SPACE(8);
+ WRITE32(clp->cl_seqid); /*Sequence id */
+ WRITE32(args->flags); /*flags */
+
+ RESERVE_SPACE(2*28); /* 2 channel_attrs */
+ /* Fore Channel */
+ WRITE32(args->fc_attrs.headerpadsz); /* header padding size */
+ WRITE32(args->fc_attrs.max_rqst_sz); /* max req size */
+ WRITE32(args->fc_attrs.max_resp_sz); /* max resp size */
+ WRITE32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */
+ WRITE32(args->fc_attrs.max_ops); /* max operations */
+ WRITE32(args->fc_attrs.max_reqs); /* max requests */
+ WRITE32(0); /* rdmachannel_attrs */
+
+ /* Back Channel */
+ WRITE32(args->fc_attrs.headerpadsz); /* header padding size */
+ WRITE32(args->bc_attrs.max_rqst_sz); /* max req size */
+ WRITE32(args->bc_attrs.max_resp_sz); /* max resp size */
+ WRITE32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
+ WRITE32(args->bc_attrs.max_ops); /* max operations */
+ WRITE32(args->bc_attrs.max_reqs); /* max requests */
+ WRITE32(0); /* rdmachannel_attrs */
+
+ RESERVE_SPACE(4);
+ WRITE32(args->cb_program); /* cb_program */
+
+ RESERVE_SPACE(4); /* # of security flavors */
+ WRITE32(1);
+
+ RESERVE_SPACE(4);
+ WRITE32(RPC_AUTH_UNIX); /* auth_sys */
+
+ /* authsys_parms rfc1831 */
+ RESERVE_SPACE(4);
+ WRITE32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
+ len = scnprintf(machine_name, sizeof(machine_name), "%s",
+ clp->cl_ipaddr);
+ RESERVE_SPACE(16 + len);
+ WRITE32(len);
+ WRITEMEM(machine_name, len);
+ WRITE32(0); /* UID */
+ WRITE32(0); /* GID */
+ WRITE32(0); /* No more gids */
+ hdr->nops++;
+ hdr->replen += decode_create_session_maxsz;
+}
+
+static void encode_destroy_session(struct xdr_stream *xdr,
+ struct nfs4_session *session,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+ RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN);
+ WRITE32(OP_DESTROY_SESSION);
+ WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
+ hdr->nops++;
+ hdr->replen += decode_destroy_session_maxsz;
}
+#endif /* CONFIG_NFS_V4_1 */
+
+static void encode_sequence(struct xdr_stream *xdr,
+ const struct nfs4_sequence_args *args,
+ struct compound_hdr *hdr)
+{
+#if defined(CONFIG_NFS_V4_1)
+ struct nfs4_session *session = args->sa_session;
+ struct nfs4_slot_table *tp;
+ struct nfs4_slot *slot;
+ __be32 *p;
+
+ if (!session)
+ return;
+
+ tp = &session->fc_slot_table;
+
+ WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
+ slot = tp->slots + args->sa_slotid;
+
+ RESERVE_SPACE(4);
+ WRITE32(OP_SEQUENCE);
+
+ /*
+ * Sessionid + seqid + slotid + max slotid + cache_this
+ */
+ dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
+ "max_slotid=%d cache_this=%d\n",
+ __func__,
+ ((u32 *)session->sess_id.data)[0],
+ ((u32 *)session->sess_id.data)[1],
+ ((u32 *)session->sess_id.data)[2],
+ ((u32 *)session->sess_id.data)[3],
+ slot->seq_nr, args->sa_slotid,
+ tp->highest_used_slotid, args->sa_cache_this);
+ RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16);
+ WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
+ WRITE32(slot->seq_nr);
+ WRITE32(args->sa_slotid);
+ WRITE32(tp->highest_used_slotid);
+ WRITE32(args->sa_cache_this);
+ hdr->nops++;
+ hdr->replen += decode_sequence_maxsz;
+#endif /* CONFIG_NFS_V4_1 */
+}
+
/*
* END OF "GENERIC" ENCODE ROUTINES.
*/
+static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
+{
+#if defined(CONFIG_NFS_V4_1)
+ if (args->sa_session)
+ return args->sa_session->clp->cl_minorversion;
+#endif /* CONFIG_NFS_V4_1 */
+ return 0;
+}
+
/*
* Encode an ACCESS request
*/
@@ -1351,11 +1701,12 @@ static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_access(&xdr, args->access, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1370,11 +1721,12 @@ static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->dir_fh, &hdr);
encode_lookup(&xdr, args->name, &hdr);
encode_getfh(&xdr, &hdr);
@@ -1390,11 +1742,12 @@ static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struc
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putrootfh(&xdr, &hdr);
encode_getfh(&xdr, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1409,11 +1762,12 @@ static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_remove(&xdr, &args->name, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1428,11 +1782,12 @@ static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->old_dir, &hdr);
encode_savefh(&xdr, &hdr);
encode_putfh(&xdr, args->new_dir, &hdr);
@@ -1451,11 +1806,12 @@ static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_savefh(&xdr, &hdr);
encode_putfh(&xdr, args->dir_fh, &hdr);
@@ -1474,11 +1830,12 @@ static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->dir_fh, &hdr);
encode_savefh(&xdr, &hdr);
encode_create(&xdr, args, &hdr);
@@ -1505,11 +1862,12 @@ static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nf
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
encode_nops(&hdr);
@@ -1523,11 +1881,12 @@ static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closea
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_close(&xdr, args, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1542,11 +1901,12 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openarg
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_savefh(&xdr, &hdr);
encode_open(&xdr, args, &hdr);
@@ -1569,7 +1929,7 @@ static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_open_confirm(&xdr, args, &hdr);
encode_nops(&hdr);
@@ -1583,11 +1943,12 @@ static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_open(&xdr, args, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1602,11 +1963,12 @@ static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct n
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_open_downgrade(&xdr, args, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1621,11 +1983,12 @@ static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_ar
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_lock(&xdr, args, &hdr);
encode_nops(&hdr);
@@ -1639,11 +2002,12 @@ static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_lockt(&xdr, args, &hdr);
encode_nops(&hdr);
@@ -1657,11 +2021,12 @@ static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_locku(&xdr, args, &hdr);
encode_nops(&hdr);
@@ -1675,22 +2040,16 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
- unsigned int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_readlink(&xdr, args, req, &hdr);
- /* set up reply kvec
- * toplevel_status + taglen + rescount + OP_PUTFH + status
- * + OP_READLINK + status + string length = 8
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
args->pgbase, args->pglen);
encode_nops(&hdr);
return 0;
@@ -1703,25 +2062,19 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
- int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_readdir(&xdr, args, req, &hdr);
- /* set up reply kvec
- * toplevel_status + taglen + rescount + OP_PUTFH + status
- * + OP_READDIR + status + verifer(2) = 9
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
args->pgbase, args->count);
dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
- __func__, replen, args->pages,
+ __func__, hdr.replen << 2, args->pages,
args->pgbase, args->count);
encode_nops(&hdr);
return 0;
@@ -1732,24 +2085,18 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
*/
static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_read(&xdr, args, &hdr);
- /* set up reply kvec
- * toplevel status + taglen=0 + rescount + OP_PUTFH + status
- * + OP_READ + status + eof + datalen = 9
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
args->pages, args->pgbase, args->count);
req->rq_rcv_buf.flags |= XDRBUF_READ;
encode_nops(&hdr);
@@ -1763,11 +2110,12 @@ static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_seta
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_setattr(&xdr, args, args->server, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1783,20 +2131,19 @@ nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
struct nfs_getaclargs *args)
{
struct xdr_stream xdr;
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- int replen;
+ uint32_t replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
+ replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1;
encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
- /* set up reply buffer: */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen,
+ xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
args->acl_pages, args->acl_pgbase, args->acl_len);
encode_nops(&hdr);
return 0;
@@ -1809,11 +2156,12 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writea
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_write(&xdr, args, &hdr);
req->rq_snd_buf.flags |= XDRBUF_WRITE;
@@ -1829,11 +2177,12 @@ static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_write
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_commit(&xdr, args, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1848,11 +2197,12 @@ static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsin
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_fsinfo(&xdr, args->bitmask, &hdr);
encode_nops(&hdr);
@@ -1866,11 +2216,12 @@ static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct n
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
&hdr);
@@ -1885,11 +2236,12 @@ static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
@@ -1900,16 +2252,18 @@ static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs
/*
* GETATTR_BITMAP request
*/
-static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle)
+static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p,
+ struct nfs4_server_caps_arg *args)
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
- encode_putfh(&xdr, fhandle, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
+ encode_putfh(&xdr, args->fhandle, &hdr);
encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
FATTR4_WORD0_LINK_SUPPORT|
FATTR4_WORD0_SYMLINK_SUPPORT|
@@ -1929,7 +2283,7 @@ static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
encode_renew(&xdr, clp, &hdr);
encode_nops(&hdr);
return 0;
@@ -1946,7 +2300,7 @@ static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
encode_setclientid(&xdr, sc, &hdr);
encode_nops(&hdr);
return 0;
@@ -1964,7 +2318,7 @@ static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, str
const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
encode_setclientid_confirm(&xdr, clp, &hdr);
encode_putrootfh(&xdr, &hdr);
encode_fsinfo(&xdr, lease_bitmap, &hdr);
@@ -1979,11 +2333,12 @@ static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struc
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fhandle, &hdr);
encode_delegreturn(&xdr, args->stateid, &hdr);
encode_getfattr(&xdr, args->bitmask, &hdr);
@@ -1998,28 +2353,119 @@ static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
- int replen;
+ uint32_t replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->dir_fh, &hdr);
encode_lookup(&xdr, args->name, &hdr);
+ replen = hdr.replen; /* get the attribute into args->page */
encode_fs_locations(&xdr, args->bitmask, &hdr);
- /* set up reply
- * toplevel_status + OP_PUTFH + status
- * + OP_LOOKUP + status + OP_GETATTR + status = 7
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page,
+ xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
0, PAGE_SIZE);
encode_nops(&hdr);
return 0;
}
+#if defined(CONFIG_NFS_V4_1)
+/*
+ * EXCHANGE_ID request
+ */
+static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
+ struct nfs41_exchange_id_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = args->client->cl_minorversion,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_exchange_id(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
+/*
+ * a CREATE_SESSION request
+ */
+static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
+ struct nfs41_create_session_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = args->client->cl_minorversion,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_create_session(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
+/*
+ * a DESTROY_SESSION request
+ */
+static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
+ struct nfs4_session *session)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = session->clp->cl_minorversion,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_destroy_session(&xdr, session, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
+/*
+ * a SEQUENCE request
+ */
+static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p,
+ struct nfs4_sequence_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = nfs4_xdr_minorversion(args),
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
+/*
+ * a GET_LEASE_TIME request
+ */
+static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
+ struct nfs4_get_lease_time_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
+ };
+ const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->la_seq_args, &hdr);
+ encode_putrootfh(&xdr, &hdr);
+ encode_fsinfo(&xdr, lease_bitmap, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+#endif /* CONFIG_NFS_V4_1 */
+
/*
* START OF "GENERIC" DECODE ROUTINES.
* These may look a little ugly since they are imported from a "generic"
@@ -3657,7 +4103,7 @@ decode_savefh(struct xdr_stream *xdr)
return decode_op_hdr(xdr, OP_SAVEFH);
}
-static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
+static int decode_setattr(struct xdr_stream *xdr)
{
__be32 *p;
uint32_t bmlen;
@@ -3735,6 +4181,169 @@ static int decode_delegreturn(struct xdr_stream *xdr)
return decode_op_hdr(xdr, OP_DELEGRETURN);
}
+#if defined(CONFIG_NFS_V4_1)
+static int decode_exchange_id(struct xdr_stream *xdr,
+ struct nfs41_exchange_id_res *res)
+{
+ __be32 *p;
+ uint32_t dummy;
+ int status;
+ struct nfs_client *clp = res->client;
+
+ status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
+ if (status)
+ return status;
+
+ READ_BUF(8);
+ READ64(clp->cl_ex_clid);
+ READ_BUF(12);
+ READ32(clp->cl_seqid);
+ READ32(clp->cl_exchange_flags);
+
+ /* We ask for SP4_NONE */
+ READ32(dummy);
+ if (dummy != SP4_NONE)
+ return -EIO;
+
+ /* Throw away minor_id */
+ READ_BUF(8);
+
+ /* Throw away Major id */
+ READ_BUF(4);
+ READ32(dummy);
+ READ_BUF(dummy);
+
+ /* Throw away server_scope */
+ READ_BUF(4);
+ READ32(dummy);
+ READ_BUF(dummy);
+
+ /* Throw away Implementation id array */
+ READ_BUF(4);
+ READ32(dummy);
+ READ_BUF(dummy);
+
+ return 0;
+}
+
+static int decode_chan_attrs(struct xdr_stream *xdr,
+ struct nfs4_channel_attrs *attrs)
+{
+ __be32 *p;
+ u32 nr_attrs;
+
+ READ_BUF(28);
+ READ32(attrs->headerpadsz);
+ READ32(attrs->max_rqst_sz);
+ READ32(attrs->max_resp_sz);
+ READ32(attrs->max_resp_sz_cached);
+ READ32(attrs->max_ops);
+ READ32(attrs->max_reqs);
+ READ32(nr_attrs);
+ if (unlikely(nr_attrs > 1)) {
+ printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
+ __func__, nr_attrs);
+ return -EINVAL;
+ }
+ if (nr_attrs == 1)
+ READ_BUF(4); /* skip rdma_attrs */
+ return 0;
+}
+
+static int decode_create_session(struct xdr_stream *xdr,
+ struct nfs41_create_session_res *res)
+{
+ __be32 *p;
+ int status;
+ struct nfs_client *clp = res->client;
+ struct nfs4_session *session = clp->cl_session;
+
+ status = decode_op_hdr(xdr, OP_CREATE_SESSION);
+
+ if (status)
+ return status;
+
+ /* sessionid */
+ READ_BUF(NFS4_MAX_SESSIONID_LEN);
+ COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN);
+
+ /* seqid, flags */
+ READ_BUF(8);
+ READ32(clp->cl_seqid);
+ READ32(session->flags);
+
+ /* Channel attributes */
+ status = decode_chan_attrs(xdr, &session->fc_attrs);
+ if (!status)
+ status = decode_chan_attrs(xdr, &session->bc_attrs);
+ return status;
+}
+
+static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
+{
+ return decode_op_hdr(xdr, OP_DESTROY_SESSION);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
+static int decode_sequence(struct xdr_stream *xdr,
+ struct nfs4_sequence_res *res,
+ struct rpc_rqst *rqstp)
+{
+#if defined(CONFIG_NFS_V4_1)
+ struct nfs4_slot *slot;
+ struct nfs4_sessionid id;
+ u32 dummy;
+ int status;
+ __be32 *p;
+
+ if (!res->sr_session)
+ return 0;
+
+ status = decode_op_hdr(xdr, OP_SEQUENCE);
+ if (status)
+ goto out_err;
+
+ /*
+ * If the server returns different values for sessionID, slotID or
+ * sequence number, the server is looney tunes.
+ */
+ status = -ESERVERFAULT;
+
+ slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
+ READ_BUF(NFS4_MAX_SESSIONID_LEN + 20);
+ COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN);
+ if (memcmp(id.data, res->sr_session->sess_id.data,
+ NFS4_MAX_SESSIONID_LEN)) {
+ dprintk("%s Invalid session id\n", __func__);
+ goto out_err;
+ }
+ /* seqid */
+ READ32(dummy);
+ if (dummy != slot->seq_nr) {
+ dprintk("%s Invalid sequence number\n", __func__);
+ goto out_err;
+ }
+ /* slot id */
+ READ32(dummy);
+ if (dummy != res->sr_slotid) {
+ dprintk("%s Invalid slot id\n", __func__);
+ goto out_err;
+ }
+ /* highest slot id - currently not processed */
+ READ32(dummy);
+ /* target highest slot id - currently not processed */
+ READ32(dummy);
+ /* result flags - currently not processed */
+ READ32(dummy);
+ status = 0;
+out_err:
+ res->sr_status = status;
+ return status;
+#else /* CONFIG_NFS_V4_1 */
+ return 0;
+#endif /* CONFIG_NFS_V4_1 */
+}
+
/*
* END OF "GENERIC" DECODE ROUTINES.
*/
@@ -3752,6 +4361,9 @@ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -3773,7 +4385,11 @@ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_ac
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
status = decode_putfh(&xdr);
if (status != 0)
@@ -3796,7 +4412,11 @@ static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lo
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
@@ -3819,7 +4439,11 @@ static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nf
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
if ((status = decode_putrootfh(&xdr)) != 0)
goto out;
@@ -3839,7 +4463,11 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_rem
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
@@ -3860,7 +4488,11 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_re
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
@@ -3890,7 +4522,11 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
@@ -3923,7 +4559,11 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_cr
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
@@ -3963,6 +4603,9 @@ static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_g
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -3979,12 +4622,13 @@ nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 0,
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
status = encode_setacl(&xdr, args, &hdr);
encode_nops(&hdr);
@@ -3995,7 +4639,8 @@ nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args
* Decode SETACL response
*/
static int
-nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res)
+nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p,
+ struct nfs_setaclres *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4005,10 +4650,13 @@ nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res)
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
- status = decode_setattr(&xdr, res);
+ status = decode_setattr(&xdr);
out:
return status;
}
@@ -4017,7 +4665,8 @@ out:
* Decode GETACL response
*/
static int
-nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len)
+nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p,
+ struct nfs_getaclres *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4027,10 +4676,13 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len)
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
- status = decode_getacl(&xdr, rqstp, acl_len);
+ status = decode_getacl(&xdr, rqstp, &res->acl_len);
out:
return status;
@@ -4049,6 +4701,9 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_clos
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4079,6 +4734,9 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openr
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4133,6 +4791,9 @@ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nf
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4157,10 +4818,13 @@ static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_se
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
- status = decode_setattr(&xdr, res);
+ status = decode_setattr(&xdr);
if (status)
goto out;
decode_getfattr(&xdr, res->fattr, res->server);
@@ -4181,6 +4845,9 @@ static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4202,6 +4869,9 @@ static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4223,6 +4893,9 @@ static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4234,7 +4907,8 @@ out:
/*
* Decode READLINK response
*/
-static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res)
+static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p,
+ struct nfs4_readlink_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4244,6 +4918,9 @@ static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res)
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4265,6 +4942,9 @@ static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_r
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4286,6 +4966,9 @@ static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readr
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4309,6 +4992,9 @@ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writ
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4335,6 +5021,9 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_wri
status = decode_compound_hdr(&xdr, &hdr);
if (status)
goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
status = decode_putfh(&xdr);
if (status)
goto out;
@@ -4349,7 +5038,8 @@ out:
/*
* FSINFO request
*/
-static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
+static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
+ struct nfs4_fsinfo_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4358,16 +5048,19 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinf
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
if (!status)
+ status = decode_sequence(&xdr, &res->seq_res, req);
+ if (!status)
status = decode_putfh(&xdr);
if (!status)
- status = decode_fsinfo(&xdr, fsinfo);
+ status = decode_fsinfo(&xdr, res->fsinfo);
return status;
}
/*
* PATHCONF request
*/
-static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf)
+static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
+ struct nfs4_pathconf_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4376,16 +5069,19 @@ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pat
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
if (!status)
+ status = decode_sequence(&xdr, &res->seq_res, req);
+ if (!status)
status = decode_putfh(&xdr);
if (!status)
- status = decode_pathconf(&xdr, pathconf);
+ status = decode_pathconf(&xdr, res->pathconf);
return status;
}
/*
* STATFS request
*/
-static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat)
+static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
+ struct nfs4_statfs_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4394,9 +5090,11 @@ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fssta
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
if (!status)
+ status = decode_sequence(&xdr, &res->seq_res, req);
+ if (!status)
status = decode_putfh(&xdr);
if (!status)
- status = decode_statfs(&xdr, fsstat);
+ status = decode_statfs(&xdr, res->fsstat);
return status;
}
@@ -4410,7 +5108,11 @@ static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4
int status;
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, req);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
@@ -4483,7 +5185,10 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nf
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
- if (status != 0)
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (status)
goto out;
status = decode_putfh(&xdr);
if (status != 0)
@@ -4497,7 +5202,8 @@ out:
/*
* FS_LOCATIONS request
*/
-static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res)
+static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
+ struct nfs4_fs_locations_res *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4505,18 +5211,113 @@ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs
xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
- if (status != 0)
+ if (status)
+ goto out;
+ status = decode_sequence(&xdr, &res->seq_res, req);
+ if (status)
goto out;
if ((status = decode_putfh(&xdr)) != 0)
goto out;
if ((status = decode_lookup(&xdr)) != 0)
goto out;
xdr_enter_page(&xdr, PAGE_SIZE);
- status = decode_getfattr(&xdr, &res->fattr, res->server);
+ status = decode_getfattr(&xdr, &res->fs_locations->fattr,
+ res->fs_locations->server);
out:
return status;
}
+#if defined(CONFIG_NFS_V4_1)
+/*
+ * EXCHANGE_ID request
+ */
+static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
+ void *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_exchange_id(&xdr, res);
+ return status;
+}
+
+/*
+ * a CREATE_SESSION request
+ */
+static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
+ struct nfs41_create_session_res *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_create_session(&xdr, res);
+ return status;
+}
+
+/*
+ * a DESTROY_SESSION request
+ */
+static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
+ void *dummy)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_destroy_session(&xdr, dummy);
+ return status;
+}
+
+/*
+ * a SEQUENCE request
+ */
+static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
+ struct nfs4_sequence_res *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_sequence(&xdr, res, rqstp);
+ return status;
+}
+
+/*
+ * a GET_LEASE_TIME request
+ */
+static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
+ struct nfs4_get_lease_time_res *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_sequence(&xdr, &res->lr_seq_res, rqstp);
+ if (!status)
+ status = decode_putrootfh(&xdr);
+ if (!status)
+ status = decode_fsinfo(&xdr, res->lr_fsinfo);
+ return status;
+}
+#endif /* CONFIG_NFS_V4_1 */
+
__be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus)
{
uint32_t bitmap[2] = {0};
@@ -4686,6 +5487,13 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC(GETACL, enc_getacl, dec_getacl),
PROC(SETACL, enc_setacl, dec_setacl),
PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
+#if defined(CONFIG_NFS_V4_1)
+ PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
+ PROC(CREATE_SESSION, enc_create_session, dec_create_session),
+ PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
+ PROC(SEQUENCE, enc_sequence, dec_sequence),
+ PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
+#endif /* CONFIG_NFS_V4_1 */
};
struct rpc_version nfs_version4 = {
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 4ace3c50a8e..96c4ebfa46f 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -22,6 +22,7 @@
#include <asm/system.h>
+#include "nfs4_fs.h"
#include "internal.h"
#include "iostat.h"
#include "fscache.h"
@@ -46,6 +47,7 @@ struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
p->npages = pagecount;
+ p->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
if (pagecount <= ARRAY_SIZE(p->page_array))
p->pagevec = p->page_array;
else {
@@ -357,19 +359,25 @@ static void nfs_readpage_retry(struct rpc_task *task, struct nfs_read_data *data
struct nfs_readres *resp = &data->res;
if (resp->eof || resp->count == argp->count)
- return;
+ goto out;
/* This is a short read! */
nfs_inc_stats(data->inode, NFSIOS_SHORTREAD);
/* Has the server at least made some progress? */
if (resp->count == 0)
- return;
+ goto out;
/* Yes, so retry the read at the end of the data */
argp->offset += resp->count;
argp->pgbase += resp->count;
argp->count -= resp->count;
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, NFS_SERVER(data->inode)->nfs_client);
+ return;
+out:
+ nfs4_sequence_free_slot(NFS_SERVER(data->inode)->nfs_client,
+ &data->res.seq_res);
+ return;
+
}
/*
@@ -406,7 +414,23 @@ static void nfs_readpage_release_partial(void *calldata)
nfs_readdata_release(calldata);
}
+#if defined(CONFIG_NFS_V4_1)
+void nfs_read_prepare(struct rpc_task *task, void *calldata)
+{
+ struct nfs_read_data *data = calldata;
+
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode)->nfs_client,
+ &data->args.seq_args, &data->res.seq_res,
+ 0, task))
+ return;
+ rpc_call_start(task);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
static const struct rpc_call_ops nfs_read_partial_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_read_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_readpage_result_partial,
.rpc_release = nfs_readpage_release_partial,
};
@@ -470,6 +494,9 @@ static void nfs_readpage_release_full(void *calldata)
}
static const struct rpc_call_ops nfs_read_full_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_read_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_readpage_result_full,
.rpc_release = nfs_readpage_release_full,
};
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index b798ed1bd36..3d460527daa 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -90,6 +90,7 @@ enum {
Opt_mountport,
Opt_mountvers,
Opt_nfsvers,
+ Opt_minorversion,
/* Mount options that take string arguments */
Opt_sec, Opt_proto, Opt_mountproto, Opt_mounthost,
@@ -155,6 +156,7 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_mountvers, "mountvers=%s" },
{ Opt_nfsvers, "nfsvers=%s" },
{ Opt_nfsvers, "vers=%s" },
+ { Opt_minorversion, "minorversion=%u" },
{ Opt_sec, "sec=%s" },
{ Opt_proto, "proto=%s" },
@@ -977,6 +979,7 @@ static int nfs_parse_mount_options(char *raw,
while ((p = strsep(&raw, ",")) != NULL) {
substring_t args[MAX_OPT_ARGS];
unsigned long option;
+ int int_option;
int token;
if (!*p)
@@ -1247,6 +1250,13 @@ static int nfs_parse_mount_options(char *raw,
goto out_invalid_value;
}
break;
+ case Opt_minorversion:
+ if (match_int(args, &int_option))
+ return 0;
+ if (int_option < 0 || int_option > NFS4_MAX_MINOR_VERSION)
+ return 0;
+ mnt->minorversion = int_option;
+ break;
/*
* options that take text values
@@ -2308,6 +2318,7 @@ static int nfs4_validate_mount_data(void *options,
args->nfs_server.port = NFS_PORT; /* 2049 unless user set port= */
args->auth_flavors[0] = RPC_AUTH_UNIX;
args->auth_flavor_len = 0;
+ args->minorversion = 0;
switch (data->version) {
case 1:
@@ -2524,12 +2535,13 @@ static void nfs4_kill_super(struct super_block *sb)
{
struct nfs_server *server = NFS_SB(sb);
+ dprintk("--> %s\n", __func__);
nfs_super_return_all_delegations(sb);
kill_anon_super(sb);
-
nfs4_renewd_prepare_shutdown(server);
nfs_fscache_release_super_cookie(sb);
nfs_free_server(server);
+ dprintk("<-- %s\n", __func__);
}
/*
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index ecc29534777..1064c91ae81 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -15,6 +15,7 @@
#include <linux/wait.h>
#include "internal.h"
+#include "nfs4_fs.h"
struct nfs_unlinkdata {
struct hlist_node list;
@@ -82,7 +83,7 @@ static void nfs_async_unlink_done(struct rpc_task *task, void *calldata)
struct inode *dir = data->dir;
if (!NFS_PROTO(dir)->unlink_done(task, dir))
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, NFS_SERVER(dir)->nfs_client);
}
/**
@@ -102,9 +103,25 @@ static void nfs_async_unlink_release(void *calldata)
nfs_sb_deactive(sb);
}
+#if defined(CONFIG_NFS_V4_1)
+void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
+{
+ struct nfs_unlinkdata *data = calldata;
+ struct nfs_server *server = NFS_SERVER(data->dir);
+
+ if (nfs4_setup_sequence(server->nfs_client, &data->args.seq_args,
+ &data->res.seq_res, 1, task))
+ return;
+ rpc_call_start(task);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
static const struct rpc_call_ops nfs_unlink_ops = {
.rpc_call_done = nfs_async_unlink_done,
.rpc_release = nfs_async_unlink_release,
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_unlink_prepare,
+#endif /* CONFIG_NFS_V4_1 */
};
static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct nfs_unlinkdata *data)
@@ -241,6 +258,7 @@ nfs_async_unlink(struct inode *dir, struct dentry *dentry)
status = PTR_ERR(data->cred);
goto out_free;
}
+ data->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
status = -EBUSY;
spin_lock(&dentry->d_lock);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index e560a78995a..ce728829f79 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -25,6 +25,7 @@
#include "delegation.h"
#include "internal.h"
#include "iostat.h"
+#include "nfs4_fs.h"
#define NFSDBG_FACILITY NFSDBG_PAGECACHE
@@ -52,6 +53,7 @@ struct nfs_write_data *nfs_commitdata_alloc(void)
if (p) {
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
+ p->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
}
return p;
}
@@ -71,6 +73,7 @@ struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
p->npages = pagecount;
+ p->res.seq_res.sr_slotid = NFS4_MAX_SLOT_TABLE;
if (pagecount <= ARRAY_SIZE(p->page_array))
p->pagevec = p->page_array;
else {
@@ -1048,7 +1051,23 @@ out:
nfs_writedata_release(calldata);
}
+#if defined(CONFIG_NFS_V4_1)
+void nfs_write_prepare(struct rpc_task *task, void *calldata)
+{
+ struct nfs_write_data *data = calldata;
+ struct nfs_client *clp = (NFS_SERVER(data->inode))->nfs_client;
+
+ if (nfs4_setup_sequence(clp, &data->args.seq_args,
+ &data->res.seq_res, 1, task))
+ return;
+ rpc_call_start(task);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
static const struct rpc_call_ops nfs_write_partial_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_write_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_writeback_done_partial,
.rpc_release = nfs_writeback_release_partial,
};
@@ -1111,6 +1130,9 @@ remove_request:
}
static const struct rpc_call_ops nfs_write_full_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_write_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_writeback_done_full,
.rpc_release = nfs_writeback_release_full,
};
@@ -1123,6 +1145,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct nfs_writeargs *argp = &data->args;
struct nfs_writeres *resp = &data->res;
+ struct nfs_server *server = NFS_SERVER(data->inode);
int status;
dprintk("NFS: %5u nfs_writeback_done (status %d)\n",
@@ -1155,7 +1178,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
if (time_before(complain, jiffies)) {
dprintk("NFS: faulty NFS server %s:"
" (committed = %d) != (stable = %d)\n",
- NFS_SERVER(data->inode)->nfs_client->cl_hostname,
+ server->nfs_client->cl_hostname,
resp->verf->committed, argp->stable);
complain = jiffies + 300 * HZ;
}
@@ -1181,7 +1204,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
*/
argp->stable = NFS_FILE_SYNC;
}
- rpc_restart_call(task);
+ nfs4_restart_rpc(task, server->nfs_client);
return -EAGAIN;
}
if (time_before(complain, jiffies)) {
@@ -1193,6 +1216,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
/* Can't do anything about it except throw an error. */
task->tk_status = -EIO;
}
+ nfs4_sequence_free_slot(server->nfs_client, &data->res.seq_res);
return 0;
}
@@ -1349,6 +1373,9 @@ static void nfs_commit_release(void *calldata)
}
static const struct rpc_call_ops nfs_commit_ops = {
+#if defined(CONFIG_NFS_V4_1)
+ .rpc_call_prepare = nfs_write_prepare,
+#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_commit_done,
.rpc_release = nfs_commit_release,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 11:04:06 +0000