Shaohua Li 8dd2cb7e88 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>

2012-12-14 20:46:04 +01:00

26 KiB

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