linux-kernel - [PATCH v3 00/10] A few fixes and cleanups to mballoc

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Message-Id: <20230801143204.2284343-1-shikemeng@huaweicloud.com>
Date:   Tue,  1 Aug 2023 22:31:54 +0800
From:   Kemeng Shi <shikemeng@...weicloud.com>
To:     tytso@....edu, adilger.kernel@...ger.ca, ritesh.list@...il.com,
        ojaswin@...ux.ibm.com, linux-ext4@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     shikemeng@...weicloud.com
Subject: [PATCH v3 00/10] A few fixes and cleanups to mballoc

v2->v3:
-Correct comment of patch 10 on top of [1]. Remove the RVB from patch
10 as it changed.
-Collect RVG from Ritesh to Patch 1.
v1->v2:
Collect review-by from Ritesh and do improve as Ritesh suggested:
-Keep checks inside unlikely() in patch 1
-Add missed fixes tags in patch 1, 2 and 10
-Fix typo, fix conflic and kill one more return in patch 5
 
Hi all, this series contains some random fixes and cleanups to mballoc
which include correct grp validation, fix data overflow and so on.
More details can be found in respective patches.
Besides, 'kvm-xfstest smoke' runs successfully without error.

Thanks!

[1] https://lore.kernel.org/linux-ext4/20230630085927.140137-1-ojaswin@linux.ibm.com/

Kemeng Shi (10):
  ext4: correct grp validation in ext4_mb_good_group
  ext4: avoid potential data overflow in next_linear_group
  ext4: return found group directly in
    ext4_mb_choose_next_group_p2_aligned
  ext4: use is_power_of_2 helper in ext4_mb_regular_allocator
  ext4: remove unnecessary return for void function
  ext4: replace the traditional ternary conditional operator with with
    max()/min()
  ext4: remove unused ext4_{set}/{clear}_bit_atomic
  ext4: return found group directly in
    ext4_mb_choose_next_group_goal_fast
  ext4: return found group directly in
    ext4_mb_choose_next_group_best_avail
  ext4: correct some stale comment of criteria

 fs/ext4/ext4.h    |  2 --
 fs/ext4/mballoc.c | 89 ++++++++++++++++++-----------------------------
 2 files changed, 33 insertions(+), 58 deletions(-)

-- 
2.30.0