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authorMartin K. Petersen <martin.petersen@oracle.com>2012-09-18 12:19:28 -0400
committerJens Axboe <axboe@kernel.dk>2012-09-20 14:31:49 +0200
commit579e8f3c7b2ecf7db91398d942d76457a3ddba21 (patch)
treef41d7d469cb427550656f1d1d2c3b5215a9ea0aa /include/linux/fs.h
parent4363ac7c13a9a4b763c6e8d9fdbfc2468f3b8ca4 (diff)
downloadlinaro-lsk-579e8f3c7b2ecf7db91398d942d76457a3ddba21.tar.gz
block: Make blkdev_issue_zeroout use WRITE SAME
If the device supports WRITE SAME, use that to optimize zeroing of blocks. If the device does not support WRITE SAME or if the operation fails, fall back to writing zeroes the old-fashioned way. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/fs.h')
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