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(parent: 3ea6130) | patch
dm stripe: optimize sector division
authorMikulas Patocka <mpatocka@redhat.com>
Thu, 12 Aug 2010 03:14:21 +0000 (04:14 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Thu, 12 Aug 2010 03:14:21 +0000 (04:14 +0100)
commit93598832e3bf61e84fdc1f03423efa27ce882862
treeb66f185ffd58538f6107f3acf3af38b8aecd7f8atree | snapshot
parent3ea6130b91879cad2eb10e3ea18ca6dcc4842f7ccommit | diff
dm stripe: optimize sector division

Optimize sector division: If the number of stripes is a power of two,
we can do shift and mask instead of division.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm-stripe.c diff | blob | history
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