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author | David S. Miller <davem@davemloft.net> | 2008-03-17 23:44:31 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-03-17 23:44:31 -0700 |
commit | 2f633928cbba8a5858bb39b11e7219a41b0fbef5 (patch) | |
tree | 9a82f4b7f2c3afe4b0208d8e44ea61bae90a7d22 /fs/xfs/xfs_bit.h | |
parent | 5e226e4d9016daee170699f8a4188a5505021756 (diff) | |
parent | bde4f8fa8db2abd5ac9c542d76012d0fedab050f (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/xfs/xfs_bit.h')
-rw-r--r-- | fs/xfs/xfs_bit.h | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h index 325a007dec9..082641a9782 100644 --- a/fs/xfs/xfs_bit.h +++ b/fs/xfs/xfs_bit.h @@ -47,30 +47,13 @@ static inline __uint64_t xfs_mask64lo(int n) } /* Get high bit set out of 32-bit argument, -1 if none set */ -static inline int xfs_highbit32(__uint32_t v) -{ - return fls(v) - 1; -} - -/* Get high bit set out of 64-bit argument, -1 if none set */ -static inline int xfs_highbit64(__uint64_t v) -{ - return fls64(v) - 1; -} - -/* Get low bit set out of 32-bit argument, -1 if none set */ -static inline int xfs_lowbit32(__uint32_t v) -{ - __uint32_t t = v; - return (t) ? find_first_bit((unsigned long *)&t, 32) : -1; -} +extern int xfs_highbit32(__uint32_t v); /* Get low bit set out of 64-bit argument, -1 if none set */ -static inline int xfs_lowbit64(__uint64_t v) -{ - __uint64_t t = v; - return (t) ? find_first_bit((unsigned long *)&t, 64) : -1; -} +extern int xfs_lowbit64(__uint64_t v); + +/* Get high bit set out of 64-bit argument, -1 if none set */ +extern int xfs_highbit64(__uint64_t); /* Return whether bitmap is empty (1 == empty) */ extern int xfs_bitmap_empty(uint *map, uint size); |