linux-ext4 - Re: [PATCH 1/2] src/ext4_resize.c: Refactor code and ensure accurate errno is returned

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Date:   Sat, 19 Feb 2022 12:42:25 +0530
From:   Ritesh Harjani <riteshh@...ux.ibm.com>
To:     Ojaswin Mujoo <ojaswin@...ux.ibm.com>
Cc:     fstests@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 1/2] src/ext4_resize.c: Refactor code and ensure accurate
 errno is returned

On 22/02/07 01:55PM, Ojaswin Mujoo wrote:
> The current implementation of ext4_resize returned 1 whenever
> there was an error. Modify this to return the correct error code.
> This is important for tests that rely on correct error reporting, by
> the kernel, for ext4 resize functionality.
>
> Additionaly, perform some code cleanup.

Thanks for fixing the error return codes. This looks good to me.

Feel free to add -
Reviewed-by: Ritesh Harjani <riteshh@...ux.ibm.com>

Stats on running this stats on my dev machine

<on old kernels>
===================
qemu@...u:~/src/tools/xfstests-dev$ sudo ./check -s ext4_4k ext4/056
SECTION       -- ext4_4k
FSTYP         -- ext4
PLATFORM      -- Linux/ppc64le qemu 5.4.0-100-generic #113-Ubuntu SMP Thu Feb 3 18:43:11 UTC 2022
MKFS_OPTIONS  -- -I 256 -O 64bit -F -b 4096 /dev/loop10
MOUNT_OPTIONS -- -o data=ordered /dev/loop10 /mnt1/scratch

ext4/056        [failed, exit status 1]- output mismatch (see /home/qemu/src/tools/xfstests-dev/results//ext4_4k/ext4/056.out.bad)
    --- tests/ext4/056.out      2022-02-19 06:55:22.233659113 +0000
    +++ /home/qemu/src/tools/xfstests-dev/results//ext4_4k/ext4/056.out.bad     2022-02-19 06:57:48.931542566 +0000
    @@ -1,2 +1,3 @@
     QA output created by 056
    -Test Succeeded!
    +_check_generic_filesystem: filesystem on /dev/loop10 is inconsistent
    +(see /home/qemu/src/tools/xfstests-dev/results//ext4_4k/ext4/056.full for details)
    ...
    (Run 'diff -u /home/qemu/src/tools/xfstests-dev/tests/ext4/056.out /home/qemu/src/tools/xfstests-dev/results//ext4_4k/ext4/056.out.bad'  to see the entire diff)
Ran: ext4/056
Failures: ext4/056
Failed 1 of 1 tests

SECTION       -- ext4_4k
=========================
Ran: ext4/056
Failures: ext4/056
Failed 1 of 1 tests

<on 5.16.0-rc4>
===================
qemu@...u:~/src/tools/xfstests-dev$ sudo ./check -s ext4_4k -i 10 ext4/056
SECTION       -- ext4_4k
FSTYP         -- ext4
PLATFORM      -- Linux/ppc64le qemu 5.16.0-rc4+ #6 SMP Sat Jan 29 22:07:24 UTC 2022
MKFS_OPTIONS  -- -I 256 -O 64bit -F -b 4096 /dev/loop10
MOUNT_OPTIONS -- -o data=ordered /dev/loop10 /mnt1/scratch

ext4/056 9s ...  11s
Ran: ext4/056
Passed all 1 tests

-ritesh