linux-ext4 - Re: [PATCH 1/1] ext4: Fix bs < ps issue reported with dioread

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Message-ID: <CA+icZUXLDGfHVGJXp2dA2JAxP8LUV4EVDNJmz20YjHa5A9oTtQ@mail.gmail.com>
Date:   Fri, 9 Oct 2020 12:18:23 +0200
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Ritesh Harjani <riteshh@...ux.ibm.com>
Cc:     linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        tytso@....edu, jack@...e.cz, anju@...ux.vnet.ibm.com,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>
Subject: Re: [PATCH 1/1] ext4: Fix bs < ps issue reported with dioread_nolock
 mount opt

On Fri, Oct 9, 2020 at 9:19 AM Ritesh Harjani <riteshh@...ux.ibm.com> wrote:
>
>
>
> On 10/9/20 12:16 PM, Sedat Dilek wrote:
> > On Thu, Oct 8, 2020 at 5:56 PM Ritesh Harjani <riteshh@...ux.ibm.com> wrote:
> >>
> >> left shifting m_lblk by blkbits was causing value overflow and hence
> >> it was not able to convert unwritten to written extent.
> >> So, make sure we typecast it to loff_t before do left shift operation.
> >> Also in func ext4_convert_unwritten_io_end_vec(), make sure to initialize
> >> ret variable to avoid accidentally returning an uninitialized ret.
> >>
> >> This patch fixes the issue reported in ext4 for bs < ps with
> >> dioread_nolock mount option.
> >>
> >> Fixes: c8cc88163f40df39e50c ("ext4: Add support for blocksize < pagesize in dioread_nolock")
> >
> > Fixes: tag should be 12 digits (see [1]).
> > ( Seen while walking through ext-dev Git commits. )
>
>
> Thanks Sedat, I guess it should be minimum 12 chars [1]
>
> [1]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst#n177
>

OK.

In my ~/.gitconfig:

[core]
       abbrev = 12

# Check for 'Fixes:' tag used in the Linux-kernel development process
(Thanks Kalle Valo).
# Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst
# Usage: $ git log --format=fixes | head -5
[pretty]
   fixes = Fixes: %h (\"%s\")

Hope this is useful for others.

- Sedat -