Re: [PATCH v5 00/20] bio: check return values of bio_add_page

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On 5/5/23 2:09?AM, Johannes Thumshirn wrote:
> On 02.05.23 12:20, Johannes Thumshirn wrote:
>> We have two functions for adding a page to a bio, __bio_add_page() which is
>> used to add a single page to a freshly created bio and bio_add_page() which is
>> used to add a page to an existing bio.
>>
>> While __bio_add_page() is expected to succeed, bio_add_page() can fail.
>>
>> This series converts the callers of bio_add_page() which can easily use
>> __bio_add_page() to using it and checks the return of bio_add_page() for
>> callers that don't work on a freshly created bio.
>>
>> Lastly it marks bio_add_page() as __must_check so we don't have to go again
>> and audit all callers.
>>
>> Changes to v4:
>> - Rebased onto latest Linus' master
>> - Dropped already merged patches
>> - Added Sergey's Reviewed-by
>>
>> Changes to v3:
>> - Added __bio_add_folio and use it in iomap (Willy)
>> - Mark bio_add_folio must check (Willy)
>> - s/GFS/GFS2/ (Andreas)
>>
>> Changes to v2:
>> - Removed 'wont fail' comments pointed out by Song
>>
>> Changes to v1:
>> - Removed pointless comment pointed out by Willy
>> - Changed commit messages pointed out by Damien
>> - Colledted Damien's Reviews and Acks
> 
> Jens any comments on this?

I'll take a look post -rc1.

-- 
Jens Axboe

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