linux-kernel - Re: [PATCH 1/1] f2fs: move fiemap to use iomap framework

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Date:   Sun, 6 Aug 2023 10:05:53 +0800
From:   Chao Yu <chao@...nel.org>
To:     Wu Bo <bo.wu@...o.com>, Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, wubo.oduw@...il.com,
        Daeho Jeong <daehojeong@...gle.com>
Subject: Re: [PATCH 1/1] f2fs: move fiemap to use iomap framework

On 2023/7/31 9:26, Wu Bo wrote:
> This patch has been tested with xfstests by running 'kvm-xfstests -c
> f2fs -g auto' with and without this patch; no regressions were seen.
> 
> Some tests fail both before and after, and the test results are:
> f2fs/default: 683 tests, 9 failures, 226 skipped, 30297 seconds
>    Failures: generic/050 generic/064 generic/250 generic/252 generic/459
>        generic/506 generic/563 generic/634 generic/635

Can you please take a look at gerneic/473 ?

generic/473 1s ... - output mismatch (see /media/fstests/results//generic/473.out.bad)
     --- tests/generic/473.out	2022-11-10 08:42:19.231395230 +0000
     +++ /media/fstests/results//generic/473.out.bad	2023-08-04 02:02:01.000000000 +0000
     @@ -6,7 +6,7 @@
      1: [256..287]: hole
      Hole + Data
      0: [0..127]: hole
     -1: [128..255]: data
     +1: [128..135]: data
      Hole + Data + Hole
      0: [0..127]: hole
     ...
     (Run 'diff -u /media/fstests/tests/generic/473.out /media/fstests/results//generic/473.out.bad'  to see the entire diff)

Other concern is, it needs to test this implementation on compressed file,
since the logic is a little bit complicated.

+Cc Daeho Jeong

Thanks,