Re: [PATCH 0/2] ext4: fast commit crash consistency issues

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Thanks for the patches, these are good finds.

Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>

On Wed, Dec 22, 2021 at 7:24 PM Xin Yin <yinxin.x@xxxxxxxxxxxxx> wrote:
>
> 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@xxxxxxxxxxxxx>
>
> 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
>



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