linux-kernel - [PATCH] md/raid1: remove unnecessary null checking

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Message-Id: <20231214151458.28970-1-gouhao@uniontech.com>
Date:   Thu, 14 Dec 2023 23:14:58 +0800
From:   Gou Hao <gouhao@...ontech.com>
To:     song@...nel.org, linux-raid@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, gouhaojake@....com
Subject: [PATCH] md/raid1: remove unnecessary null checking

If %__GFP_DIRECT_RECLAIM is set then bio_alloc_bioset will always
be able to allocate a bio. See comment of bio_alloc_bioset.

Signed-off-by: Gou Hao <gouhao@...ontech.com>
---
 drivers/md/raid1.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 35d12948e0a9..e77dc95d4a75 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1126,8 +1126,6 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 
 	behind_bio = bio_alloc_bioset(NULL, vcnt, 0, GFP_NOIO,
 				      &r1_bio->mddev->bio_set);
-	if (!behind_bio)
-		return;
 
 	/* discard op, we don't support writezero/writesame yet */
 	if (!bio_has_data(bio)) {
-- 
2.34.1