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[PATCH] x86: fls() in asm
authorStephen Hemminger <shemminger@osdl.org>
Fri, 6 Jan 2006 08:12:12 +0000 (00:12 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 6 Jan 2006 16:33:38 +0000 (08:33 -0800)
commitede7a9f02d36c6d3de92652a7ebe55f065f5ce71
tree2fc22b6337fc433a6b392e9b008339d8031e8e1ctree | snapshot
parenta39a2f20e4f4d95966c2fbcf5c5c90e7468ed381commit | diff
[PATCH] x86: fls() in asm

There is a single instruction on i386 to find largest set bit; so it makes
sense to use it (like we use bfs for ffs()).

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
include/asm-i386/bitops.h diff | blob | history
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