Messages in this thread Patch in this message | | | From | Geliang Tang <> | Subject | [PATCH] writeback: use rb_entry() | Date | Fri, 13 Jan 2017 23:17:12 +0800 |
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To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree.
Signed-off-by: Geliang Tang <geliangtang@gmail.com> --- 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 3bfed5ab..ffb77a1 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -410,8 +410,8 @@ wb_congested_get_create(struct backing_dev_info *bdi, int blkcg_id, gfp_t gfp) 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) -- 2.9.3
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