tree 73c1c2135a117290308b5807b6ede21389e3264c
parent 14f50b49fdab8f4c9fc87b55d3631e3bf1ffd385
author Paul Clements <paul.clements@steeleye.com> 1159863361 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159887858 -0700

[PATCH] md: use ffz instead of find_first_set to convert multiplier to shift

find_first_set doesn't find the least-significant bit on bigendian machines,
so it is really wrong to use it.

ffs is closer, but takes an 'int' and we have a 'unsigned long'.  So use
ffz(~X) to convert a chunksize into a chunkshift.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>