Re: block: Allow merging of tail pages into the last segment

[Jan Vesely <jvesely@redhat.com>]

On Mon 03 Jun 2013 15:30:36 CEST, Jan Vesely wrote:
> On 16/04/13 10:24, Jan Vesely wrote:
>> On 28/03/13 10:38, Jan Vesely wrote:
>>> Hi
>>>
>>> These patches modify __bio_add_page to accept pages that extent the last bio
>>> segment. some drivers craft their buffers and rely on this behavior (see
>>> message in patch 2 for details)
>>
>> any comments on this version would be appreciated
>>
>> thanks
>>
>>>
>>> jan
>>>
>>> v3: Use code from __blk_recalc_rq_segments to decide whether the page is
>>>     mergeable,
>>>
>>> v2: modify a comment
>>>
>>> Jan Vesely (2):
>>>       block: factor out vector mergeable decision to a helper function
>>>       block: modify __bio_add_page check to accept pages that don't start a new
>>>
>>>  block/blk-merge.c   | 52 +++++++++++++++++++++++++++++++---------------------
>>>  fs/bio.c            | 29 ++++++++++++++++++-----------
>>>  include/linux/bio.h |  3 +++
>>>  3 files changed, 52 insertions(+), 32 deletions(-)
>>>
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> ping?
>
>
> Jens, your input on v2 helped a lot, any comments on v3?
>
> thanks

ping

--
Jan Vesely <jvesely@redhat.com>