linux-kernel - Re: [PATCH v4 00/12] ext4: fix WARNING in ext4_da_update_reserve

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Message-ID: <80efff2a-17e5-c5bd-3e61-59c207cc2343@huawei.com>
Date:   Wed, 24 May 2023 15:30:37 +0800
From:   Baokun Li <libaokun1@...wei.com>
To:     <linux-ext4@...r.kernel.org>
CC:     <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
        <ritesh.list@...il.com>, <linux-kernel@...r.kernel.org>,
        <yi.zhang@...wei.com>, <yangerkun@...wei.com>,
        <yukuai3@...wei.com>, Baokun Li <libaokun1@...wei.com>
Subject: Re: [PATCH v4 00/12] ext4: fix WARNING in
 ext4_da_update_reserve_space

A gentle ping too.

On 2023/4/24 11:38, Baokun Li wrote:
> V1->V2:
>          Modify the patch 1 description and add the Fixes tag.
>          Add the patch 2 as suggested by Jan Kara.
> V2->V3:
>          Remove the redundant judgment of count in Patch [1].
>          Rename ext4_es_alloc_should_nofail to ext4_es_must_keep.
>          Split Patch [2].
>          Make some functions return void to simplify the code.
> V3->V4:
>          using nofail preallocation.
>
> This patch set consists of three parts:
> 1. Patch [1] fix WARNING in ext4_da_update_reserve_space.
> 2. Patch [2]-[8] fix extent tree inconsistencies that may be caused
>     by memory allocation failures.
> 3. Patch [9]-[12] is cleanup.
>
> Baokun Li (12):
>    ext4: only update i_reserved_data_blocks on successful block
>      allocation
>    ext4: add a new helper to check if es must be kept
>    ext4: factor out __es_alloc_extent() and __es_free_extent()
>    ext4: use pre-allocated es in __es_insert_extent()
>    ext4: use pre-allocated es in __es_remove_extent()
>    ext4: using nofail preallocation in ext4_es_remove_extent()
>    ext4: using nofail preallocation in ext4_es_insert_delayed_block()
>    ext4: using nofail preallocation in ext4_es_insert_extent()
>    ext4: make ext4_es_remove_extent() return void
>    ext4: make ext4_es_insert_delayed_block() return void
>    ext4: make ext4_es_insert_extent() return void
>    ext4: make ext4_zeroout_es() return void
>
>   fs/ext4/extents.c        |  49 +++------
>   fs/ext4/extents_status.c | 207 ++++++++++++++++++++++++---------------
>   fs/ext4/extents_status.h |  14 +--
>   fs/ext4/indirect.c       |   8 ++
>   fs/ext4/inline.c         |  12 +--
>   fs/ext4/inode.c          |  49 ++-------
>   6 files changed, 169 insertions(+), 170 deletions(-)
>