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authorGeliang Tang <geliangtang@gmail.com>2017-02-22 15:45:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 16:41:30 -0800
commitbc71226b0690c21bdf50c9c9d08c5dc9ef98764e (patch)
tree5ba2427a369aa0fe2ad669c87047e52c6f20e6af
parent21440d7eb9044001b7fdb71d0163689f60a0f2a1 (diff)
downloadlinux-bc71226b0690c21bdf50c9c9d08c5dc9ef98764e.tar.bz2
mm/backing-dev.c: use rb_entry()
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Link: http://lkml.kernel.org/r/671275de093d93ddc7c6f77ddc0d357149691a39.1484306840.git.geliangtang@gmail.com Signed-off-by: Geliang Tang <geliangtang@gmail.com> Cc: Jens Axboe <axboe@fb.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/backing-dev.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 39ce616a9d71..6d861d090e9f 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -411,8 +411,8 @@ retry:
while (*node != NULL) {
parent = *node;
- congested = container_of(parent, struct bdi_writeback_congested,
- rb_node);
+ congested = rb_entry(parent, struct bdi_writeback_congested,
+ rb_node);
if (congested->blkcg_id < blkcg_id)
node = &parent->rb_left;
else if (congested->blkcg_id > blkcg_id)