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| author | Mike Snitzer <snitzer@redhat.com> | 2010-12-17 08:34:20 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-12-17 08:36:01 +0100 |
| commit | 72d4cd9f38b5ed96b75df4c622be25e1c2648dd3 (patch) | |
| tree | a229645cbbc63aad3fa5b57ea9f092e618588890 /drivers/block | |
| parent | e692cb668fdd5a712c6ed2a2d6f2a36ee83997b4 (diff) | |
| download | op-kernel-dev-72d4cd9f38b5ed96b75df4c622be25e1c2648dd3.zip op-kernel-dev-72d4cd9f38b5ed96b75df4c622be25e1c2648dd3.tar.gz | |
block: max hardware sectors limit wrapper
Implement blk_limits_max_hw_sectors() and make
blk_queue_max_hw_sectors() a wrapper around it.
DM needs this to avoid setting queue_limits' max_hw_sectors and
max_sectors directly. dm_set_device_limits() now leverages
blk_limits_max_hw_sectors() logic to establish the appropriate
max_hw_sectors minimum (PAGE_SIZE). Fixes issue where DM was
incorrectly setting max_sectors rather than max_hw_sectors (which
caused dm_merge_bvec()'s max_hw_sectors check to be ineffective).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@kernel.org
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/block')
0 files changed, 0 insertions, 0 deletions
