fuse: pqueue locking

Add a fpq->lock for protecting members of struct fuse_pqueue and FR_LOCKED
request flag.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 5897d89ea2ba..ad3799e57efd 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -405,6 +405,9 @@ struct fuse_pqueue {
 	/** Connection established */
 	unsigned connected;
 
+	/** Lock protecting accessess to  members of this structure */
+	spinlock_t lock;
+
 	/** The list of requests being processed */
 	struct list_head processing;