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

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Message-ID: <22e5c5f9-c06b-5c49-d165-8f194aad107b@linux.ibm.com>
Date:   Fri, 9 Oct 2020 12:48:53 +0530
From:   Ritesh Harjani <riteshh@...ux.ibm.com>
To:     sedat.dilek@...il.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 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

-ritesh