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Re: [dm-devel] [PATCH] block: Require subsystems to explicitly allocate bio_set integrity mempool
- From: "Martin K. Petersen" <martin petersen oracle com>
- To: Mike Snitzer <snitzer redhat com>
- Cc: Jens Axboe <jaxboe fusionio com>, device-mapper development <dm-devel redhat com>, "Martin K. Petersen" <martin petersen oracle com>, Zdenek Kabelac <zkabelac redhat com>
- Subject: Re: [dm-devel] [PATCH] block: Require subsystems to explicitly allocate bio_set integrity mempool
- Date: Fri, 11 Mar 2011 12:11:55 -0500
>>>>> "Mike" == Mike Snitzer <snitzer redhat com> writes:
>> Yeah, that'll come as part of my DIX1.1 patch set.
Mike> Seems my concern should be fixed independent of a larger update
Mike> patchset. Unless DIX isn't meaningful for "stable" kernels
Mike> without your full DIX1.1 update?
Well, I'm not aware of any shipping non-512 byte block DIF devices other
than scsi_debug.
And it's not good enough to just fix it in DM since this is a hardware
parameter that needs to be queried and bubbled up. It can't be scaled
like the rest of the topology block sizes, it's wired in the
hardware. So I just don't see much point in trying to fix it now when
any ties to the logical block size will be severed in my impending patch
set.
--
Martin K. Petersen Oracle Linux Engineering
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