fuse: use list_first_entry() in flush_bg_queue()

This cleanup patch makes the function to use the primitive
instead of direct dereferencing.

Also, move fiq dereferencing out of cycle, since it's
always constant.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 51eb602a435b..6a7d3b4424e1 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -353,12 +353,13 @@ void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
 
 static void flush_bg_queue(struct fuse_conn *fc)
 {
+        struct fuse_iqueue *fiq = &fc->iq;
+
         while (fc->active_background < fc->max_background &&
                !list_empty(&fc->bg_queue)) {
                 struct fuse_req *req;
-                struct fuse_iqueue *fiq = &fc->iq;
 
-                req = list_entry(fc->bg_queue.next, struct fuse_req, list);
+                req = list_first_entry(&fc->bg_queue, struct fuse_req, list);
                 list_del(&req->list);
                 fc->active_background++;
                 spin_lock(&fiq->waitq.lock);