[00/21] Some bugfix and cleanup to mballoc

Message ID	20230209194825.511043-1-shikemeng@huaweicloud.com
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; From: Kemeng Shi <shikemeng@huaweicloud.com> To: tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 00/21] Some bugfix and cleanup to mballoc Date: Fri, 10 Feb 2023 03:48:04 +0800 Message-Id: <20230209194825.511043-1-shikemeng@huaweicloud.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Some bugfix and cleanup to mballoc \| [00/21] Some bugfix and cleanup to mballoc [01/21] ext4: set goal start correctly in ext4_mb_normalize_request [02/21] ext4: allow to find by goal if EXT4_MB_HINT_GOAL_ONLY is set [03/21] ext4: avoid to use preallocated blocks if EXT4_MB_HINT_GOAL_ONLY is set [04/21] ext4: get correct ext4_group_info in ext4_mb_prefetch_fini [05/21] ext4: correct calculation of s_mb_preallocated [06/21] ext4: correct start of used group pa for debug in ext4_mb_use_group_pa [07/21] ext4: protect pa->pa_free in ext4_discard_allocated_blocks [08/21] ext4: add missed brelse in ext4_free_blocks_simple [09/21] ext4: remove unused return value of ext4_mb_try_best_found and ext4_mb_free_metadata [10/21] ext4: Remove unnecessary release when memory allocation failed in ext4_mb_init_cache [11/21] ext4: remove unnecessary e4b->bd_buddy_page check in ext4_mb_load_buddy_gfp [12/21] ext4: remove unnecessary check in ext4_mb_new_blocks [13/21] ext4: remove dead check in mb_buddy_mark_free [14/21] ext4: remove ac->ac_found > sbi->s_mb_min_to_scan dead check in ext4_mb_check_limits [15/21] ext4: use best found when complex scan of group finishs [16/21] ext4: remove unnecessary exit_meta_group_info tag [17/21] ext4: remove unnecessary count2 in ext4_free_data_in_buddy [18/21] ext4: remove unnecessary goto in ext4_mb_mark_diskspace_used [19/21] ext4: remove repeat assignment to ac_f_ex [20/21] ext4: remove comment code ext4_discard_preallocations [21/21] ext4: simplify calculation of blkoff in ext4_mb_new_blocks_simple

Message ID

20230209194825.511043-1-shikemeng@huaweicloud.com

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From: Kemeng Shi <shikemeng@huaweicloud.com>
To: tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz
Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 00/21] Some bugfix and cleanup to mballoc
Date: Fri, 10 Feb 2023 03:48:04 +0800
Message-Id: <20230209194825.511043-1-shikemeng@huaweicloud.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

Some bugfix and cleanup to mballoc |

Message

Kemeng Shi Feb. 9, 2023, 7:48 p.m. UTC

  Hi, this series contain some random cleanup patches and some bugfix
patches to make EXT4_MB_HINT_GOAL_ONLY work properly, protect pa->pa_free
from race and so on. More details can be found in git log.
Thanks!

Kemeng Shi (21):
  ext4: set goal start correctly in ext4_mb_normalize_request
  ext4: allow to find by goal if EXT4_MB_HINT_GOAL_ONLY is set
  ext4: avoid to use preallocated blocks if EXT4_MB_HINT_GOAL_ONLY is
    set
  ext4: get correct ext4_group_info in ext4_mb_prefetch_fini
  ext4: correct calculation of s_mb_preallocated
  ext4: correct start of used group pa for debug in ext4_mb_use_group_pa
  ext4: protect pa->pa_free in ext4_discard_allocated_blocks
  ext4: add missed brelse in ext4_free_blocks_simple
  ext4: remove unused return value of ext4_mb_try_best_found and
    ext4_mb_free_metadata
  ext4: Remove unnecessary release when memory allocation failed in
    ext4_mb_init_cache
  ext4: remove unnecessary e4b->bd_buddy_page check in
    ext4_mb_load_buddy_gfp
  ext4: remove unnecessary check in ext4_mb_new_blocks
  ext4: remove dead check in mb_buddy_mark_free
  ext4: remove ac->ac_found > sbi->s_mb_min_to_scan dead check in
    ext4_mb_check_limits
  ext4: use best found when complex scan of group finishs
  ext4: remove unnecessary exit_meta_group_info tag
  ext4: remove unnecessary count2 in ext4_free_data_in_buddy
  ext4: remove unnecessary goto in ext4_mb_mark_diskspace_used
  ext4: remove repeat assignment to ac_f_ex
  ext4: remove comment code ext4_discard_preallocations
  ext4: simplify calculation of blkoff in ext4_mb_new_blocks_simple

 fs/ext4/mballoc.c | 105 ++++++++++++++++++----------------------------
 1 file changed, 40 insertions(+), 65 deletions(-)