Re: [PATCH 17/17] Add the parent pointer support to the superblock version 5.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Oct 19, 2017 at 11:06 PM, Darrick J. Wong
<darrick.wong@xxxxxxxxxx> wrote:
> On Thu, Oct 19, 2017 at 06:57:04AM +0300, Amir Goldstein wrote:
>> On Thu, Oct 19, 2017 at 1:55 AM, Allison Henderson
>> <allison.henderson@xxxxxxxxxx> wrote:
>> > [dchinner: forward ported and cleaned up]
>> > [achender: rebased and added parent pointer attribute to
>> >            compatible attributes mask]
>> >
>> > Signed-off-by: Mark Tinguely <tinguely@xxxxxxx>
>> > Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
>> > Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
>> > ---
>> > v2: remove unrelated type clean up in xfs_format.h
>>
>> I'm curious how XFS_SB_VERSION2_PARENTBIT fits into the picture?
>> old relic?
>
> A feature bit most probably used by the SGI XFS parent pointer
> implementation.  We don't want to reuse that bit and thereby crash into
> their code.
>

Ah, I was not aware that parallel universe exists.
Perhaps worth a comment near definition of XFS_SB_VERSION2_PARENTBIT
so it won't be confused with Linux parent pointers.

Amir.
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [XFS Filesystem Development (older mail)]     [Linux Filesystem Development]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux RAID]     [Linux SCSI]


  Powered by Linux