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-rw-r--r--fs/nfsd/nfs4state.c72
1 files changed, 48 insertions, 24 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f4cccbf664..57968484c3 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -59,7 +59,7 @@
#define NFSDDBG_FACILITY NFSDDBG_PROC
-#define all_ones {{~0,~0},~0}
+#define all_ones {{ ~0, ~0}, ~0}
static const stateid_t one_stateid = {
.si_generation = ~0,
.si_opaque = all_ones,
@@ -297,7 +297,7 @@ find_or_allocate_block(struct nfs4_lockowner *lo, struct knfsd_fh *fh,
nbl = find_blocked_lock(lo, fh, nn);
if (!nbl) {
- nbl= kmalloc(sizeof(*nbl), GFP_KERNEL);
+ nbl = kmalloc(sizeof(*nbl), GFP_KERNEL);
if (nbl) {
INIT_LIST_HEAD(&nbl->nbl_list);
INIT_LIST_HEAD(&nbl->nbl_lru);
@@ -1159,6 +1159,7 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp,
struct nfs4_clnt_odstate *odstate, u32 dl_type)
{
struct nfs4_delegation *dp;
+ struct nfs4_stid *stid;
long n;
dprintk("NFSD alloc_init_deleg\n");
@@ -1167,9 +1168,10 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp,
goto out_dec;
if (delegation_blocked(&fp->fi_fhandle))
goto out_dec;
- dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg));
- if (dp == NULL)
+ stid = nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg);
+ if (stid == NULL)
goto out_dec;
+ dp = delegstateid(stid);
/*
* delegation seqid's are never incremented. The 4.1 special
@@ -4400,8 +4402,7 @@ static unsigned long
nfsd4_state_shrinker_count(struct shrinker *shrink, struct shrink_control *sc)
{
int count;
- struct nfsd_net *nn = container_of(shrink,
- struct nfsd_net, nfsd_client_shrinker);
+ struct nfsd_net *nn = shrink->private_data;
count = atomic_read(&nn->nfsd_courtesy_clients);
if (!count)
@@ -4944,10 +4945,8 @@ nfsd_break_deleg_cb(struct file_lock *fl)
*/
fl->fl_break_time = 0;
- spin_lock(&fp->fi_lock);
fp->fi_had_conflict = true;
nfsd_break_one_deleg(dp);
- spin_unlock(&fp->fi_lock);
return false;
}
@@ -5556,12 +5555,13 @@ nfs4_set_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
if (status)
goto out_unlock;
+ status = -EAGAIN;
+ if (fp->fi_had_conflict)
+ goto out_unlock;
+
spin_lock(&state_lock);
spin_lock(&fp->fi_lock);
- if (fp->fi_had_conflict)
- status = -EAGAIN;
- else
- status = hash_delegation_locked(dp, fp);
+ status = hash_delegation_locked(dp, fp);
spin_unlock(&fp->fi_lock);
spin_unlock(&state_lock);
@@ -5636,11 +5636,11 @@ nfs4_open_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
int status = 0;
cb_up = nfsd4_cb_channel_good(oo->oo_owner.so_client);
- open->op_recall = 0;
+ open->op_recall = false;
switch (open->op_claim_type) {
case NFS4_OPEN_CLAIM_PREVIOUS:
if (!cb_up)
- open->op_recall = 1;
+ open->op_recall = true;
break;
case NFS4_OPEN_CLAIM_NULL:
parent = currentfh;
@@ -5682,7 +5682,7 @@ out_no_deleg:
if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS &&
open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE) {
dprintk("NFSD: WARNING: refusing delegation reclaim\n");
- open->op_recall = 1;
+ open->op_recall = true;
}
/* 4.1 client asking for a delegation? */
@@ -7487,6 +7487,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_blocked_lock *nbl = NULL;
struct file_lock *file_lock = NULL;
struct file_lock *conflock = NULL;
+ struct super_block *sb;
__be32 status = 0;
int lkflg;
int err;
@@ -7508,6 +7509,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
dprintk("NFSD: nfsd4_lock: permission denied!\n");
return status;
}
+ sb = cstate->current_fh.fh_dentry->d_sb;
if (lock->lk_is_new) {
if (nfsd4_has_session(cstate))
@@ -7559,7 +7561,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fp = lock_stp->st_stid.sc_file;
switch (lock->lk_type) {
case NFS4_READW_LT:
- if (nfsd4_has_session(cstate))
+ if (nfsd4_has_session(cstate) ||
+ exportfs_lock_op_is_async(sb->s_export_op))
fl_flags |= FL_SLEEP;
fallthrough;
case NFS4_READ_LT:
@@ -7571,7 +7574,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fl_type = F_RDLCK;
break;
case NFS4_WRITEW_LT:
- if (nfsd4_has_session(cstate))
+ if (nfsd4_has_session(cstate) ||
+ exportfs_lock_op_is_async(sb->s_export_op))
fl_flags |= FL_SLEEP;
fallthrough;
case NFS4_WRITE_LT:
@@ -7599,7 +7603,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* for file locks), so don't attempt blocking lock notifications
* on those filesystems:
*/
- if (nf->nf_file->f_op->lock)
+ if (!exportfs_lock_op_is_async(sb->s_export_op))
fl_flags &= ~FL_SLEEP;
nbl = find_or_allocate_block(lock_sop, &fp->fi_fhandle, nn);
@@ -7705,6 +7709,14 @@ out:
return status;
}
+void nfsd4_lock_release(union nfsd4_op_u *u)
+{
+ struct nfsd4_lock *lock = &u->lock;
+ struct nfsd4_lock_denied *deny = &lock->lk_denied;
+
+ kfree(deny->ld_owner.data);
+}
+
/*
* The NFSv4 spec allows a client to do a LOCKT without holding an OPEN,
* so we do a temporary open here just to get an open file to pass to
@@ -7810,6 +7822,14 @@ out:
return status;
}
+void nfsd4_lockt_release(union nfsd4_op_u *u)
+{
+ struct nfsd4_lockt *lockt = &u->lockt;
+ struct nfsd4_lock_denied *deny = &lockt->lt_denied;
+
+ kfree(deny->ld_owner.data);
+}
+
__be32
nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
@@ -8153,12 +8173,16 @@ static int nfs4_state_create_net(struct net *net)
INIT_WORK(&nn->nfsd_shrinker_work, nfsd4_state_shrinker_worker);
get_net(net);
- nn->nfsd_client_shrinker.scan_objects = nfsd4_state_shrinker_scan;
- nn->nfsd_client_shrinker.count_objects = nfsd4_state_shrinker_count;
- nn->nfsd_client_shrinker.seeks = DEFAULT_SEEKS;
-
- if (register_shrinker(&nn->nfsd_client_shrinker, "nfsd-client"))
+ nn->nfsd_client_shrinker = shrinker_alloc(0, "nfsd-client");
+ if (!nn->nfsd_client_shrinker)
goto err_shrinker;
+
+ nn->nfsd_client_shrinker->scan_objects = nfsd4_state_shrinker_scan;
+ nn->nfsd_client_shrinker->count_objects = nfsd4_state_shrinker_count;
+ nn->nfsd_client_shrinker->private_data = nn;
+
+ shrinker_register(nn->nfsd_client_shrinker);
+
return 0;
err_shrinker:
@@ -8256,7 +8280,7 @@ nfs4_state_shutdown_net(struct net *net)
struct list_head *pos, *next, reaplist;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
- unregister_shrinker(&nn->nfsd_client_shrinker);
+ shrinker_free(nn->nfsd_client_shrinker);
cancel_work(&nn->nfsd_shrinker_work);
cancel_delayed_work_sync(&nn->laundromat_work);
locks_end_grace(&nn->nfsd4_manager);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 07:37:12 +0000