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(parent: 69cf921) | patch
block: discard granularity might not be power of 2
authorShaohua Li <shli@kernel.org>
Fri, 14 Dec 2012 03:15:36 +0000 (11:15 +0800)
committerJens Axboe <axboe@kernel.dk>
Fri, 14 Dec 2012 19:46:04 +0000 (20:46 +0100)
commit87e6c0c3c58cd2882bba4aca97498c5e132c1d39
treeea51e89f8c8bf9ca8e888d68ecf6732a52e8e99dtree | snapshot
parent69cf921728a7bddd7c0e01ec0853042aa2de7d15commit | diff
block: discard granularity might not be power of 2

In MD raid case, discard granularity might not be power of 2, for example, a
4-disk raid5 has 3*chunk_size discard granularity. Correct the calculation for
such cases.

Reported-by: Neil Brown <neilb@suse.de>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-lib.c diff | blob | history
block/blk-settings.c diff | blob | history
include/linux/blkdev.h diff | blob | history
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