linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <jglisse@redhat.com>, <shy828301@gmail.com>,
	<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
	<linmiaohe@huawei.com>
Subject: [PATCH 2/5] mm/migrate.c: remove unnecessary rc != MIGRATEPAGE_SUCCESS check in 'else' case
Date: Sat, 20 Mar 2021 05:36:58 -0400	[thread overview]
Message-ID: <20210320093701.12829-3-linmiaohe@huawei.com> (raw)
In-Reply-To: <20210320093701.12829-1-linmiaohe@huawei.com>

It's guaranteed that in the 'else' case of the rc == MIGRATEPAGE_SUCCESS
check, rc does not equal to MIGRATEPAGE_SUCCESS. Remove this unnecessary
check.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/migrate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index e4ca5ef508ea..20a3bf75270a 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1374,7 +1374,7 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
 out:
 	if (rc == MIGRATEPAGE_SUCCESS)
 		putback_active_hugepage(hpage);
-	else if (rc != -EAGAIN && rc != MIGRATEPAGE_SUCCESS)
+	else if (rc != -EAGAIN)
 		list_move_tail(&hpage->lru, ret);
 
 	/*
-- 
2.19.1



  parent reply	other threads:[~2021-03-20  9:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-20  9:36 [PATCH 0/5] Cleanup and fixup for mm/migrate.c Miaohe Lin
2021-03-20  9:36 ` [PATCH 1/5] mm/migrate.c: remove unnecessary VM_BUG_ON_PAGE on putback_movable_page() Miaohe Lin
2021-03-20 14:11   ` Rafael Aquini
2021-03-22  1:52     ` Miaohe Lin
2021-03-20  9:36 ` Miaohe Lin [this message]
2021-03-23 10:23   ` [PATCH 2/5] mm/migrate.c: remove unnecessary rc != MIGRATEPAGE_SUCCESS check in 'else' case David Hildenbrand
2021-03-20  9:36 ` [PATCH 3/5] mm/migrate.c: fix potential indeterminate pte entry in migrate_vma_insert_page() Miaohe Lin
2021-03-23 10:26   ` David Hildenbrand
2021-03-23 11:07     ` Alistair Popple
2021-03-23 11:28       ` Miaohe Lin
2021-03-23 12:15         ` Miaohe Lin
2021-03-23 11:24     ` Miaohe Lin
2021-03-20  9:37 ` [PATCH 4/5] mm/migrate.c: use helper migrate_vma_collect_skip() in migrate_vma_collect_hole() Miaohe Lin
2021-03-23 10:29   ` David Hildenbrand
2021-03-20  9:37 ` [PATCH 5/5] mm/migrate.c: fix potential deadlock in NUMA balancing shared exec THP case Miaohe Lin

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=20210320093701.12829-3-linmiaohe@huawei.com \
    --to=linmiaohe@huawei.com \
    --cc=akpm@linux-foundation.org \
    --cc=jglisse@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=shy828301@gmail.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).