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From: Baolin Wang <baolin.wang@linux.alibaba.com>
To: akpm@linux-foundation.org
Cc: torvalds@linux-foundation.org, sj@kernel.org, hannes@cmpxchg.org,
	mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com,
	muchun.song@linux.dev, baolin.wang@linux.alibaba.com,
	damon@lists.linux.dev, cgroups@vger.kernel.org,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/3] Some cleanups for page isolation
Date: Tue, 14 Feb 2023 11:18:05 +0800	[thread overview]
Message-ID: <cover.1676342827.git.baolin.wang@linux.alibaba.com> (raw)

Hi,

The page isolation functions did not return a boolean to indicate
success or not, instead it will return a negative error when failed
to isolate a page. So it's better to check the negative error explicitly
for isolation to make the code more clear per Linus's suggestion in [1].

No functional changes intended in this patch series.

[1] https://lore.kernel.org/all/CAHk-=wiBrY+O-4=2mrbVyxR+hOqfdJ=Do6xoucfJ9_5az01L4Q@mail.gmail.com/

Baolin Wang (3):
  mm: check negative error of folio_isolate_lru() when failed to isolate
    a folio
  mm: check negative error of isolate_lru_page() when failed to isolate
    a page
  mm: mempolicy: check negative error of isolate_hugetlb() when failed
    to isolate a hugetlb

 mm/damon/paddr.c    | 2 +-
 mm/gup.c            | 2 +-
 mm/khugepaged.c     | 4 ++--
 mm/memcontrol.c     | 2 +-
 mm/mempolicy.c      | 2 +-
 mm/migrate.c        | 4 ++--
 mm/migrate_device.c | 2 +-
 7 files changed, 9 insertions(+), 9 deletions(-)

-- 
2.27.0


             reply	other threads:[~2023-02-14  3:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-14  3:18 Baolin Wang [this message]
2023-02-14  3:18 ` [PATCH 1/3] mm: check negative error of folio_isolate_lru() when failed to isolate a folio Baolin Wang
2023-02-14  3:18 ` [PATCH 2/3] mm: check negative error of isolate_lru_page() when failed to isolate a page Baolin Wang
2023-02-14  3:18 ` [PATCH 3/3] mm: mempolicy: check negative error of isolate_hugetlb() when failed to isolate a hugetlb Baolin Wang
2023-02-14  4:50 ` [PATCH 0/3] Some cleanups for page isolation Matthew Wilcox
2023-02-14  6:49   ` Baolin Wang

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