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-rw-r--r--fs/nfs/callback.h2
-rw-r--r--fs/nfs/callback_xdr.c6
-rw-r--r--fs/nfs/nfs4proc.c42
-rw-r--r--include/linux/nfs_fs_sb.h7
-rw-r--r--include/linux/nfs_xdr.h2
5 files changed, 29 insertions, 30 deletions
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 197e0d3754c..a5527c90a5a 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -38,7 +38,7 @@ enum nfs4_callback_opnum {
struct cb_process_state {
__be32 drc_status;
struct nfs_client *clp;
- int slotid;
+ u32 slotid;
struct net *net;
};
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 2e372240d02..5466829c7e7 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -759,14 +759,14 @@ static void nfs4_callback_free_slot(struct nfs4_session *session)
* Let the state manager know callback processing done.
* A single slot, so highest used slotid is either 0 or -1
*/
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
nfs4_check_drain_bc_complete(session);
spin_unlock(&tbl->slot_tbl_lock);
}
static void nfs4_cb_free_slot(struct cb_process_state *cps)
{
- if (cps->slotid != -1)
+ if (cps->slotid != NFS4_NO_SLOT)
nfs4_callback_free_slot(cps->clp->cl_session);
}
@@ -860,7 +860,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
struct cb_process_state cps = {
.drc_status = 0,
.clp = NULL,
- .slotid = -1,
+ .slotid = NFS4_NO_SLOT,
.net = rqstp->rq_xprt->xpt_net,
};
unsigned int nops = 0;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 482ed97189c..f3f56f4a3b7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -360,16 +360,14 @@ static void renew_lease(const struct nfs_server *server, unsigned long timestamp
* 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.
+ * If none found, highest_used_slotid is set to NFS4_NO_SLOT.
*
* Must be called while holding tbl->slot_tbl_lock
*/
static void
-nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
+nfs4_free_slot(struct nfs4_slot_table *tbl, u32 slotid)
{
- int slotid = free_slotid;
-
- BUG_ON(slotid < 0 || slotid >= NFS4_MAX_SLOT_TABLE);
+ BUG_ON(slotid >= NFS4_MAX_SLOT_TABLE);
/* clear used bit in bitmap */
__clear_bit(slotid, tbl->used_slots);
@@ -379,10 +377,10 @@ nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
if (slotid < tbl->max_slots)
tbl->highest_used_slotid = slotid;
else
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
}
- dprintk("%s: free_slotid %u highest_used_slotid %d\n", __func__,
- free_slotid, tbl->highest_used_slotid);
+ dprintk("%s: slotid %u highest_used_slotid %d\n", __func__,
+ slotid, tbl->highest_used_slotid);
}
bool nfs4_set_task_privileged(struct rpc_task *task, void *dummy)
@@ -402,7 +400,7 @@ static void nfs4_check_drain_fc_complete(struct nfs4_session *ses)
return;
}
- if (ses->fc_slot_table.highest_used_slotid != -1)
+ if (ses->fc_slot_table.highest_used_slotid != NFS4_NO_SLOT)
return;
dprintk("%s COMPLETE: Session Fore Channel Drained\n", __func__);
@@ -415,7 +413,7 @@ static void nfs4_check_drain_fc_complete(struct nfs4_session *ses)
void nfs4_check_drain_bc_complete(struct nfs4_session *ses)
{
if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state) ||
- ses->bc_slot_table.highest_used_slotid != -1)
+ ses->bc_slot_table.highest_used_slotid != NFS4_NO_SLOT)
return;
dprintk("%s COMPLETE: Session Back Channel Drained\n", __func__);
complete(&ses->bc_slot_table.complete);
@@ -510,25 +508,25 @@ static int nfs4_sequence_done(struct rpc_task *task,
* 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.
+ * The slot number is returned if found, or NFS4_NO_SLOT otherwise.
*
* Note: must be called with under the slot_tbl_lock.
*/
-static u8
+static u32
nfs4_find_slot(struct nfs4_slot_table *tbl)
{
- int slotid;
- u8 ret_id = NFS4_MAX_SLOT_TABLE;
- BUILD_BUG_ON((u8)NFS4_MAX_SLOT_TABLE != (int)NFS4_MAX_SLOT_TABLE);
+ u32 slotid;
+ u32 ret_id = NFS4_NO_SLOT;
- dprintk("--> %s used_slots=%04lx highest_used=%d max_slots=%d\n",
+ dprintk("--> %s used_slots=%04lx highest_used=%u max_slots=%u\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)
+ if (slotid > tbl->highest_used_slotid ||
+ tbl->highest_used_slotid == NFS4_NO_SLOT)
tbl->highest_used_slotid = slotid;
ret_id = slotid;
out:
@@ -555,7 +553,7 @@ int nfs41_setup_sequence(struct nfs4_session *session,
{
struct nfs4_slot *slot;
struct nfs4_slot_table *tbl;
- u8 slotid;
+ u32 slotid;
dprintk("--> %s\n", __func__);
/* slot already allocated? */
@@ -583,7 +581,7 @@ int nfs41_setup_sequence(struct nfs4_session *session,
}
slotid = nfs4_find_slot(tbl);
- if (slotid == NFS4_MAX_SLOT_TABLE) {
+ if (slotid == NFS4_NO_SLOT) {
rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
spin_unlock(&tbl->slot_tbl_lock);
dprintk("<-- %s: no free slots\n", __func__);
@@ -5144,7 +5142,7 @@ static int nfs4_init_slot_table(struct nfs4_slot_table *tbl,
spin_lock(&tbl->slot_tbl_lock);
tbl->max_slots = max_slots;
tbl->slots = slot;
- tbl->highest_used_slotid = -1; /* no slot is currently used */
+ tbl->highest_used_slotid = NFS4_NO_SLOT; /* 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);
@@ -5196,13 +5194,13 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
return NULL;
tbl = &session->fc_slot_table;
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_priority_wait_queue(&tbl->slot_tbl_waitq, "ForeChannel Slot table");
init_completion(&tbl->complete);
tbl = &session->bc_slot_table;
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
init_completion(&tbl->complete);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 9e101c1b81c..2ae57f2f645 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -191,6 +191,7 @@ struct nfs_server {
/* maximum number of slots to use */
#define NFS4_MAX_SLOT_TABLE (128U)
+#define NFS4_NO_SLOT ((u32)-1)
#if defined(CONFIG_NFS_V4)
@@ -201,10 +202,10 @@ struct nfs4_slot_table {
unsigned long used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */
spinlock_t slot_tbl_lock;
struct rpc_wait_queue slot_tbl_waitq; /* allocators may wait here */
- int max_slots; /* # slots in table */
- int highest_used_slotid; /* sent to server on each SEQ.
+ u32 max_slots; /* # slots in table */
+ u32 highest_used_slotid; /* sent to server on each SEQ.
* op for dynamic resizing */
- int target_max_slots; /* Set by CB_RECALL_SLOT as
+ u32 target_max_slots; /* Set by CB_RECALL_SLOT as
* the new max_slots */
struct completion complete;
};
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 144419a9cbd..adbc84ac345 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -181,7 +181,7 @@ struct nfs4_slot {
struct nfs4_sequence_args {
struct nfs4_session *sa_session;
- u8 sa_slotid;
+ u32 sa_slotid;
u8 sa_cache_this;
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-20 11:59:17 +0000