NFSv4: Fix up stateid locking...

We really don't need to grab both the state->so_owner and the
inode->i_lock.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4a1c4d80a577..dd1aa2b598ce 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -139,9 +139,11 @@ struct nfs4_state {
         unsigned long flags;            /* Do we hold any locks? */
         spinlock_t state_lock;          /* Protects the lock_states list */
 
+        seqlock_t seqlock;              /* Protects the stateid/open_stateid */
         nfs4_stateid stateid;           /* Current stateid: may be delegation */
         nfs4_stateid open_stateid;      /* OPEN stateid */
 
+        /* The following 3 fields are protected by owner->so_lock */
         unsigned int n_rdonly;          /* Number of read-only references */
         unsigned int n_wronly;          /* Number of write-only references */
         unsigned int n_rdwr;            /* Number of read/write references */