CIFS: Implement caching mechanism for mandatory brlocks
If we have an oplock and negotiate mandatory locking style we handle
all brlock requests on the client.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Acked-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index d153d0b..8238aa1 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -496,6 +496,8 @@
*/
struct cifsLockInfo {
struct list_head llist; /* pointer to next cifsLockInfo */
+ struct list_head blist; /* pointer to locks blocked on this */
+ wait_queue_head_t block_q;
__u64 offset;
__u64 length;
__u32 pid;