diff options
| -rw-r--r-- | fs/nfs/callback.h | 2 | ||||
| -rw-r--r-- | fs/nfs/callback_xdr.c | 6 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 42 | ||||
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 7 | ||||
| -rw-r--r-- | include/linux/nfs_xdr.h | 2 |
5 files changed, 29 insertions, 30 deletions
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h index 197e0d3754c2..a5527c90a5aa 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 2e372240d028..5466829c7e77 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 482ed97189c9..f3f56f4a3b72 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 9e101c1b81cf..2ae57f2f645b 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 144419a9cbd3..adbc84ac345f 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; }; |