From bc71226b0690c21bdf50c9c9d08c5dc9ef98764e Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Wed, 22 Feb 2017 15:45:52 -0800 Subject: [PATCH] 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 Cc: Jens Axboe Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/backing-dev.c | 4 ++-- 1 file 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) -- 2.39.5