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SubjectRe: [PATCH for-2.6.37] block: max hardware sectors limit wrapper
>>>>> "Mike" == Mike Snitzer <> writes:

Mike> Implement blk_limits_max_hw_sectors() and make
Mike> blk_queue_max_hw_sectors() a wrapper around it.

Mike> DM needs this to avoid setting queue_limits' max_hw_sectors and
Mike> max_sectors directly. dm_set_device_limits() now leverages
Mike> blk_limits_max_hw_sectors() logic to establish the appropriate
Mike> max_hw_sectors minimum (PAGE_SIZE). Fixes issue where DM was
Mike> incorrectly setting max_sectors rather than max_hw_sectors (which
Mike> caused dm_merge_bvec()'s max_hw_sectors check to be ineffective).

Acked-by: Martin K. Petersen <>

Jens, please apply.

Martin K. Petersen Oracle Linux Engineering

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