linux-kernel - [PATCH 0/2] ext4: fast commit crash consistency issues

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Date:   Thu, 23 Dec 2021 11:23:35 +0800
From:   Xin Yin <yinxin.x@...edance.com>
To:     harshadshirwadkar@...il.com, tytso@....edu,
        adilger.kernel@...ger.ca
Cc:     linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        Xin Yin <yinxin.x@...edance.com>
Subject: [PATCH 0/2] ext4: fast commit crash consistency issues

This patch sets fix 2 crash-consistency issues of fast commit.
First patch change to use ext4_ext_remove_space instead of 
ext4_punch_hole during replay delete range procedure. This 
avoid replay procedure being affeced by incorrect inode->i_size. 
Second patch correct the trank range logic for ftruncte.

After testing this patch sets with xfstests-bld, in the "log" and 
"quick" group with config "fast_commit" is selected. No regressions
was found.

Signed-off-by: Xin Yin <yinxin.x@...edance.com>

Xin Yin (2):
  ext4: use ext4_ext_remove_space() for fast commit replay delete range
  ext4: fast commit may miss tracking unwritten range during ftruncate

 fs/ext4/fast_commit.c | 13 ++++++++-----
 fs/ext4/inode.c       |  3 +--
 2 files changed, 9 insertions(+), 7 deletions(-)

-- 
2.20.1