All of lore.kernel.org
 help / color / mirror / Atom feed
From: Xu Wang <vulab@iscas.ac.cn>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH] mm/swapfile: Remove needless request_queue NULL pointer check
Date: Fri, 17 Sep 2021 08:21:11 +0000	[thread overview]
Message-ID: <20210917082111.33923-1-vulab@iscas.ac.cn> (raw)

The request_queue pointer returned from bdev_get_queue() shall
never be NULL, so the null check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
---
 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 22d10f713848..42027d213fd2 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3118,7 +3118,7 @@ static bool swap_discardable(struct swap_info_struct *si)
 {
 	struct request_queue *q = bdev_get_queue(si->bdev);
 
-	if (!q || !blk_queue_discard(q))
+	if (!blk_queue_discard(q))
 		return false;
 
 	return true;
-- 
2.17.1


             reply	other threads:[~2021-09-17  8:21 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-17  8:21 Xu Wang [this message]
2021-09-22 11:24 ` [PATCH] mm/swapfile: Remove needless request_queue NULL pointer check David Hildenbrand

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210917082111.33923-1-vulab@iscas.ac.cn \
    --to=vulab@iscas.ac.cn \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.