From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753191AbdEFPjY (ORCPT ); Sat, 6 May 2017 11:39:24 -0400 Received: from mail-pg0-f66.google.com ([74.125.83.66]:35478 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751804AbdEFPjQ (ORCPT ); Sat, 6 May 2017 11:39:16 -0400 From: Geliang Tang To: Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Shaohua Li , Coly Li Cc: Geliang Tang , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] dm bio prison: use rb_entry() Date: Sat, 6 May 2017 23:39:10 +0800 Message-Id: X-Mailer: git-send-email 2.11.0 In-Reply-To: <478774bc-7af1-58a6-7c3e-36745249d61b@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang Acked-by: Coly Li --- Changes in v2: - Apply to dm-bio-prison-v1.c and dm-bio-prison-v2.c --- drivers/md/dm-bio-prison-v1.c | 2 +- drivers/md/dm-bio-prison-v2.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-bio-prison-v1.c b/drivers/md/dm-bio-prison-v1.c index ae7da2c..f8d221b 100644 --- a/drivers/md/dm-bio-prison-v1.c +++ b/drivers/md/dm-bio-prison-v1.c @@ -116,7 +116,7 @@ static int __bio_detain(struct dm_bio_prison *prison, while (*new) { struct dm_bio_prison_cell *cell = - container_of(*new, struct dm_bio_prison_cell, node); + rb_entry(*new, struct dm_bio_prison_cell, node); r = cmp_keys(key, &cell->key); diff --git a/drivers/md/dm-bio-prison-v2.c b/drivers/md/dm-bio-prison-v2.c index c9b11f7..8ce3a1a 100644 --- a/drivers/md/dm-bio-prison-v2.c +++ b/drivers/md/dm-bio-prison-v2.c @@ -120,7 +120,7 @@ static bool __find_or_insert(struct dm_bio_prison_v2 *prison, while (*new) { struct dm_bio_prison_cell_v2 *cell = - container_of(*new, struct dm_bio_prison_cell_v2, node); + rb_entry(*new, struct dm_bio_prison_cell_v2, node); r = cmp_keys(key, &cell->key); -- 2.9.3