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-rw-r--r--fs/nfsd/export.c10
-rw-r--r--fs/nfsd/nfs4callback.c5
-rw-r--r--fs/nfsd/nfs4recover.c4
-rw-r--r--fs/nfsd/nfs4state.c6
-rw-r--r--fs/nfsd/nfs4xdr.c14
-rw-r--r--fs/nfsd/nfsctl.c24
-rw-r--r--fs/nfsd/vfs.c164
7 files changed, 116 insertions, 111 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index c487810a236..a0c4016413f 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1316,19 +1316,11 @@ rqst_exp_parent(struct svc_rqst *rqstp, struct path *path)
static struct svc_export *find_fsidzero_export(struct svc_rqst *rqstp)
{
- struct svc_export *exp;
u32 fsidv[2];
mk_fsid(FSID_NUM, fsidv, 0, 0, 0, NULL);
- exp = rqst_exp_find(rqstp, FSID_NUM, fsidv);
- /*
- * We shouldn't have accepting an nfsv4 request at all if we
- * don't have a pseudoexport!:
- */
- if (IS_ERR(exp) && PTR_ERR(exp) == -ENOENT)
- exp = ERR_PTR(-ESERVERFAULT);
- return exp;
+ return rqst_exp_find(rqstp, FSID_NUM, fsidv);
}
/*
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index c6eed2a3b09..4bc22c763de 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -525,6 +525,8 @@ static struct rpc_cred *callback_cred;
int set_callback_cred(void)
{
+ if (callback_cred)
+ return 0;
callback_cred = rpc_lookup_machine_cred();
if (!callback_cred)
return -ENOMEM;
@@ -542,7 +544,8 @@ void do_probe_callback(struct nfs4_client *clp)
};
int status;
- status = rpc_call_async(cb->cb_client, &msg, RPC_TASK_SOFT,
+ status = rpc_call_async(cb->cb_client, &msg,
+ RPC_TASK_SOFT | RPC_TASK_SOFTCONN,
&nfsd4_cb_probe_ops, (void *)clp);
if (status) {
warn_no_callback_path(clp, status);
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 5a754f7b71e..98fb98e330b 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -119,9 +119,7 @@ out_no_tfm:
static void
nfsd4_sync_rec_dir(void)
{
- mutex_lock(&rec_dir.dentry->d_inode->i_mutex);
- nfsd_sync_dir(rec_dir.dentry);
- mutex_unlock(&rec_dir.dentry->d_inode->i_mutex);
+ vfs_fsync(NULL, rec_dir.dentry, 0);
}
int
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f19ed866c95..c97fddbd17d 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1998,7 +1998,9 @@ nfs4_file_downgrade(struct file *filp, unsigned int share_access)
{
if (share_access & NFS4_SHARE_ACCESS_WRITE) {
drop_file_write_access(filp);
+ spin_lock(&filp->f_lock);
filp->f_mode = (filp->f_mode | FMODE_READ) & ~FMODE_WRITE;
+ spin_unlock(&filp->f_lock);
}
}
@@ -2480,8 +2482,10 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
}
memcpy(&open->op_stateid, &stp->st_stateid, sizeof(stateid_t));
- if (nfsd4_has_session(&resp->cstate))
+ if (nfsd4_has_session(&resp->cstate)) {
open->op_stateowner->so_confirmed = 1;
+ nfsd4_create_clid_dir(open->op_stateowner->so_client);
+ }
/*
* Attempt to hand out a delegation. No error return, because the
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index a8587e90fd5..78c7e24e512 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1434,7 +1434,7 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
}
op->opnum = ntohl(*argp->p++);
- if (op->opnum >= OP_ACCESS && op->opnum < ops->nops)
+ if (op->opnum >= FIRST_NFS4_OP && op->opnum <= LAST_NFS4_OP)
op->status = ops->decoders[op->opnum](argp, &op->u);
else {
op->opnum = OP_ILLEGAL;
@@ -2121,9 +2121,15 @@ out_acl:
* and this is the root of a cross-mounted filesystem.
*/
if (ignore_crossmnt == 0 &&
- exp->ex_path.mnt->mnt_root->d_inode == dentry->d_inode) {
- err = vfs_getattr(exp->ex_path.mnt->mnt_parent,
- exp->ex_path.mnt->mnt_mountpoint, &stat);
+ dentry == exp->ex_path.mnt->mnt_root) {
+ struct path path = exp->ex_path;
+ path_get(&path);
+ while (follow_up(&path)) {
+ if (path.dentry != path.mnt->mnt_root)
+ break;
+ }
+ err = vfs_getattr(path.mnt, path.dentry, &stat);
+ path_put(&path);
if (err)
goto out_nfserr;
}
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 2604c3e70ea..0f0e77f2012 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -988,6 +988,7 @@ static ssize_t __write_ports_delfd(char *buf)
static ssize_t __write_ports_addxprt(char *buf)
{
char transport[16];
+ struct svc_xprt *xprt;
int port, err;
if (sscanf(buf, "%15s %4u", transport, &port) != 2)
@@ -1002,13 +1003,24 @@ static ssize_t __write_ports_addxprt(char *buf)
err = svc_create_xprt(nfsd_serv, transport,
PF_INET, port, SVC_SOCK_ANONYMOUS);
- if (err < 0) {
- /* Give a reasonable perror msg for bad transport string */
- if (err == -ENOENT)
- err = -EPROTONOSUPPORT;
- return err;
- }
+ if (err < 0)
+ goto out_err;
+
+ err = svc_create_xprt(nfsd_serv, transport,
+ PF_INET6, port, SVC_SOCK_ANONYMOUS);
+ if (err < 0 && err != -EAFNOSUPPORT)
+ goto out_close;
return 0;
+out_close:
+ xprt = svc_find_xprt(nfsd_serv, transport, PF_INET, port);
+ if (xprt != NULL) {
+ svc_close_xprt(xprt);
+ svc_xprt_put(xprt);
+ }
+out_err:
+ /* Decrease the count, but don't shut down the service */
+ nfsd_serv->sv_nrthreads--;
+ return err;
}
/*
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index c194793b642..a11b0e8678e 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -20,13 +20,14 @@
#include <linux/fcntl.h>
#include <linux/namei.h>
#include <linux/delay.h>
-#include <linux/quotaops.h>
#include <linux/fsnotify.h>
#include <linux/posix_acl_xattr.h>
#include <linux/xattr.h>
#include <linux/jhash.h>
#include <linux/ima.h>
#include <asm/uaccess.h>
+#include <linux/exportfs.h>
+#include <linux/writeback.h>
#ifdef CONFIG_NFSD_V3
#include "xdr3.h"
@@ -271,6 +272,32 @@ out:
return err;
}
+/*
+ * Commit metadata changes to stable storage.
+ */
+static int
+commit_metadata(struct svc_fh *fhp)
+{
+ struct inode *inode = fhp->fh_dentry->d_inode;
+ const struct export_operations *export_ops = inode->i_sb->s_export_op;
+ int error = 0;
+
+ if (!EX_ISSYNC(fhp->fh_export))
+ return 0;
+
+ if (export_ops->commit_metadata) {
+ error = export_ops->commit_metadata(inode);
+ } else {
+ struct writeback_control wbc = {
+ .sync_mode = WB_SYNC_ALL,
+ .nr_to_write = 0, /* metadata only */
+ };
+
+ error = sync_inode(inode, &wbc);
+ }
+
+ return error;
+}
/*
* Set various file attributes.
@@ -361,7 +388,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
* If we are changing the size of the file, then
* we need to break all leases.
*/
- host_err = break_lease(inode, FMODE_WRITE | O_NONBLOCK);
+ host_err = break_lease(inode, O_WRONLY | O_NONBLOCK);
if (host_err == -EWOULDBLOCK)
host_err = -ETIMEDOUT;
if (host_err) /* ENOMEM or EWOULDBLOCK */
@@ -377,7 +404,6 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
put_write_access(inode);
goto out_nfserr;
}
- vfs_dq_init(inode);
}
/* sanitize the mode change */
@@ -734,7 +760,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
* Check to see if there are any leases on this file.
* This may block while leases are broken.
*/
- host_err = break_lease(inode, O_NONBLOCK | ((access & NFSD_MAY_WRITE) ? FMODE_WRITE : 0));
+ host_err = break_lease(inode, O_NONBLOCK | ((access & NFSD_MAY_WRITE) ? O_WRONLY : 0));
if (host_err == -EWOULDBLOCK)
host_err = -ETIMEDOUT;
if (host_err) /* NOMEM or WOULDBLOCK */
@@ -745,13 +771,13 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
flags = O_RDWR|O_LARGEFILE;
else
flags = O_WRONLY|O_LARGEFILE;
-
- vfs_dq_init(inode);
}
*filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_path.mnt),
flags, current_cred());
if (IS_ERR(*filp))
host_err = PTR_ERR(*filp);
+ else
+ host_err = ima_file_check(*filp, access);
out_nfserr:
err = nfserrno(host_err);
out:
@@ -769,43 +795,6 @@ nfsd_close(struct file *filp)
}
/*
- * Sync a file
- * As this calls fsync (not fdatasync) there is no need for a write_inode
- * after it.
- */
-static inline int nfsd_dosync(struct file *filp, struct dentry *dp,
- const struct file_operations *fop)
-{
- struct inode *inode = dp->d_inode;
- int (*fsync) (struct file *, struct dentry *, int);
- int err;
-
- err = filemap_write_and_wait(inode->i_mapping);
- if (err == 0 && fop && (fsync = fop->fsync))
- err = fsync(filp, dp, 0);
- return err;
-}
-
-static int
-nfsd_sync(struct file *filp)
-{
- int err;
- struct inode *inode = filp->f_path.dentry->d_inode;
- dprintk("nfsd: sync file %s\n", filp->f_path.dentry->d_name.name);
- mutex_lock(&inode->i_mutex);
- err=nfsd_dosync(filp, filp->f_path.dentry, filp->f_op);
- mutex_unlock(&inode->i_mutex);
-
- return err;
-}
-
-int
-nfsd_sync_dir(struct dentry *dp)
-{
- return nfsd_dosync(NULL, dp, dp->d_inode->i_fop);
-}
-
-/*
* Obtain the readahead parameters for the file
* specified by (dev, ino).
*/
@@ -1008,7 +997,7 @@ static int wait_for_concurrent_writes(struct file *file)
if (inode->i_state & I_DIRTY) {
dprintk("nfsd: write sync %d\n", task_pid_nr(current));
- err = nfsd_sync(file);
+ err = vfs_fsync(file, file->f_path.dentry, 0);
}
last_ino = inode->i_ino;
last_dev = inode->i_sb->s_dev;
@@ -1156,8 +1145,9 @@ out:
#ifdef CONFIG_NFSD_V3
/*
* Commit all pending writes to stable storage.
- * Strictly speaking, we could sync just the indicated file region here,
- * but there's currently no way we can ask the VFS to do so.
+ *
+ * Note: we only guarantee that data that lies within the range specified
+ * by the 'offset' and 'count' parameters will be synced.
*
* Unfortunately we cannot lock the file to make sure we return full WCC
* data to the client, as locking happens lower down in the filesystem.
@@ -1167,23 +1157,32 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp,
loff_t offset, unsigned long count)
{
struct file *file;
- __be32 err;
+ loff_t end = LLONG_MAX;
+ __be32 err = nfserr_inval;
- if ((u64)count > ~(u64)offset)
- return nfserr_inval;
+ if (offset < 0)
+ goto out;
+ if (count != 0) {
+ end = offset + (loff_t)count - 1;
+ if (end < offset)
+ goto out;
+ }
err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_WRITE, &file);
if (err)
- return err;
+ goto out;
if (EX_ISSYNC(fhp->fh_export)) {
- if (file->f_op && file->f_op->fsync) {
- err = nfserrno(nfsd_sync(file));
- } else {
+ int err2 = vfs_fsync_range(file, file->f_path.dentry,
+ offset, end, 0);
+
+ if (err2 != -EINVAL)
+ err = nfserrno(err2);
+ else
err = nfserr_notsupp;
- }
}
nfsd_close(file);
+out:
return err;
}
#endif /* CONFIG_NFSD_V3 */
@@ -1336,12 +1335,14 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
goto out_nfserr;
}
- if (EX_ISSYNC(fhp->fh_export)) {
- err = nfserrno(nfsd_sync_dir(dentry));
- write_inode_now(dchild->d_inode, 1);
- }
+ err = nfsd_create_setattr(rqstp, resfhp, iap);
- err2 = nfsd_create_setattr(rqstp, resfhp, iap);
+ /*
+ * nfsd_setattr already committed the child. Transactional filesystems
+ * had a chance to commit changes for both parent and child
+ * simultaneously making the following commit_metadata a noop.
+ */
+ err2 = nfserrno(commit_metadata(fhp));
if (err2)
err = err2;
mnt_drop_write(fhp->fh_export->ex_path.mnt);
@@ -1373,7 +1374,6 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct dentry *dentry, *dchild = NULL;
struct inode *dirp;
__be32 err;
- __be32 err2;
int host_err;
__u32 v_mtime=0, v_atime=0;
@@ -1468,11 +1468,6 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (created)
*created = 1;
- if (EX_ISSYNC(fhp->fh_export)) {
- err = nfserrno(nfsd_sync_dir(dentry));
- /* setattr will sync the child (or not) */
- }
-
nfsd_check_ignore_resizing(iap);
if (createmode == NFS3_CREATE_EXCLUSIVE) {
@@ -1487,9 +1482,13 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
set_attr:
- err2 = nfsd_create_setattr(rqstp, resfhp, iap);
- if (err2)
- err = err2;
+ err = nfsd_create_setattr(rqstp, resfhp, iap);
+
+ /*
+ * nfsd_setattr already committed the child (and possibly also the parent).
+ */
+ if (!err)
+ err = nfserrno(commit_metadata(fhp));
mnt_drop_write(fhp->fh_export->ex_path.mnt);
/*
@@ -1604,12 +1603,9 @@ nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
} else
host_err = vfs_symlink(dentry->d_inode, dnew, path);
-
- if (!host_err) {
- if (EX_ISSYNC(fhp->fh_export))
- host_err = nfsd_sync_dir(dentry);
- }
err = nfserrno(host_err);
+ if (!err)
+ err = nfserrno(commit_metadata(fhp));
fh_unlock(fhp);
mnt_drop_write(fhp->fh_export->ex_path.mnt);
@@ -1671,11 +1667,9 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
}
host_err = vfs_link(dold, dirp, dnew);
if (!host_err) {
- if (EX_ISSYNC(ffhp->fh_export)) {
- err = nfserrno(nfsd_sync_dir(ddir));
- write_inode_now(dest, 1);
- }
- err = 0;
+ err = nfserrno(commit_metadata(ffhp));
+ if (!err)
+ err = nfserrno(commit_metadata(tfhp));
} else {
if (host_err == -EXDEV && rqstp->rq_vers == 2)
err = nfserr_acces;
@@ -1771,10 +1765,10 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
goto out_dput_new;
host_err = vfs_rename(fdir, odentry, tdir, ndentry);
- if (!host_err && EX_ISSYNC(tfhp->fh_export)) {
- host_err = nfsd_sync_dir(tdentry);
+ if (!host_err) {
+ host_err = commit_metadata(tfhp);
if (!host_err)
- host_err = nfsd_sync_dir(fdentry);
+ host_err = commit_metadata(ffhp);
}
mnt_drop_write(ffhp->fh_export->ex_path.mnt);
@@ -1855,12 +1849,9 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
dput(rdentry);
- if (host_err)
- goto out_drop;
- if (EX_ISSYNC(fhp->fh_export))
- host_err = nfsd_sync_dir(dentry);
+ if (!host_err)
+ host_err = commit_metadata(fhp);
-out_drop:
mnt_drop_write(fhp->fh_export->ex_path.mnt);
out_nfserr:
err = nfserrno(host_err);
@@ -2127,7 +2118,6 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
*/
path.mnt = exp->ex_path.mnt;
path.dentry = dentry;
- err = ima_path_check(&path, acc & (MAY_READ | MAY_WRITE | MAY_EXEC));
nfsd_out:
return err? nfserrno(err) : 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 10:32:37 +0000