Re: [PATCH v2 0/6] Prepare byte-range locking code for future SMB2 usage

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27 марта 2012 г. 15:00 пользователь Pavel Shilovsky
<piastry@xxxxxxxxxxx> написал:
> 26 марта 2012 г. 22:48 пользователь Jeff Layton <jlayton@xxxxxxxxxx> написал:
>> On Fri, 16 Mar 2012 18:17:46 +0300
>> Pavel Shilovsky <piastry@xxxxxxxxxxx> wrote:
>>
>>> This is one of the preparation step that makes the byte-range locking code more
>>> protocol independent.
>>>
>>
>> Ok, I sat down to review this set today, but found it very difficult to
>> do so. Most of these patches have little to no explanation or
>> justification at all. Terseness is not a virtue when it come to patch
>> descriptions:
>>
>>> Pavel Shilovsky (6):
>>>   CIFS: Move locks to file structure
>> ^^^
>> That's all that patch says. No explanation of *why* you're moving those
>> to the file structure -- whatever that is. Do you mean cifsFileInfo here?
>>
>>>   CIFS: Fix VFS locks usage
>>
>> This one says:
>>
>> Surround VFS posix_lock_file_wait calls with CIFS lock_mutex
>> where it needs.
>>
>> ...so you're saying that the existing code is broken? Or is it only a
>> problem for SMB2 support? Does a fix need to go to stable?
>>
>>>   CIFS: Convert lock type to 32 bit variable
>>>   CIFS: Separate protocol specific lock type handling
>>>   CIFS: Separate protocol specific part from getlk
>>>   CIFS: Separate protocol specific part from setlk
>>>
>>>  fs/cifs/cifsfs.c   |    1 -
>>>  fs/cifs/cifsglob.h |    5 +-
>>>  fs/cifs/file.c     |  250 +++++++++++++++++++++++++++++++++++++---------------
>>>  3 files changed, 182 insertions(+), 74 deletions(-)
>>>
>>
>> Given that it's not clear to me what the goal of this patchset is, not
>> to mention the lack of any description on these patches, I can't
>> reasonably review this.
>>
>
> Sorry - forgot to add proper descriptions for these two patches - will
> repost asap.
>
> --
> Best regards,
> Pavel Shilovsky.

rebased cifs-patches branch
(http://git.altlinux.org/people/piastry/public/?p=cifs-2.6.git;a=shortlog;h=refs/heads/cifs-patches)
and smb2-3.4 branch
(http://git.altlinux.org/people/piastry/public/?p=cifs-2.6.git;a=shortlog;h=refs/heads/smb2-3.4)
on top of the current Steve's master for an easier review.

-- 
Best regards,
Pavel Shilovsky.
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