[PATCH] virtio_fs: Remove redundant spinlock in virtio_fs_request_complete()

[lirongqing]

From: Li RongQing <lirongq...@baidu.com>

Since clear_bit is an atomic operation, the spinlock is redundant and
can be removed, reducing lock contention is good for performance.

Signed-off-by: Li RongQing <lirongq...@baidu.com>
---
 fs/fuse/virtio_fs.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 8f2e2f3..de34179 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -791,9 +791,7 @@ static void virtio_fs_request_complete(struct fuse_req *req,
                }
        }
 
-       spin_lock(&fpq->lock);
        clear_bit(FR_SENT, &req->flags);
-       spin_unlock(&fpq->lock);
 
        fuse_request_end(req);
        spin_lock(&fsvq->lock);
-- 
2.9.4