Re: [dm-devel] [PATCH v2 1/3] block: add sysfs entry for discard_alignment

[Paolo Bonzini]

Il 03/07/2012 04:34, Vivek Goyal ha scritto:
>> > The next patches will actually use the alignment, expose it in sysfs
>> > for ease of debugging.
>> > 
> Don't we already have discard_alignment exported as device attribute.
> 
> /sys/block/<dev>/discard_alignment

Ah, interesting, I missed it completely.  I guess it's because queue/
directories only exist for full disks, and the correct alignment varies
for each partition.  So this patch is unnecessary.

Paolo
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