diff options
Diffstat (limited to 'fs/nfs/delegation.c')
| -rw-r--r-- | fs/nfs/delegation.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 2542cdaa1116..6390a4b5fee7 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -71,8 +71,10 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_ int status = 0; if (inode->i_flock == NULL) - goto out; + return 0; + if (inode->i_flock == NULL) + goto out; /* Protect inode->i_flock using the file locks lock */ lock_flocks(); for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) { @@ -113,12 +115,15 @@ again: get_nfs_open_context(ctx); spin_unlock(&inode->i_lock); sp = state->owner; + /* Block nfs4_proc_unlck */ + mutex_lock(&sp->so_delegreturn_mutex); seq = raw_seqcount_begin(&sp->so_reclaim_seqcount); err = nfs4_open_delegation_recall(ctx, state, stateid); if (!err) err = nfs_delegation_claim_locks(ctx, state); if (!err && read_seqcount_retry(&sp->so_reclaim_seqcount, seq)) err = -EAGAIN; + mutex_unlock(&sp->so_delegreturn_mutex); put_nfs_open_context(ctx); if (err != 0) return err; |