lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[XFS] Fix xfs_lowbit64

Browse Source 
xfs_lowbit64 was broken on 32 bit platforms in a recent cleanup of the xfs
bitops. Fix it back up again.

SGI-PV: 974005
SGI-Modid: xfs-linux-melb:xfs-kern:30202a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
This commit is contained in:
David Chinner
2007-12-07 14:08:48 +11:00
committed by Lachlan McIlroy
parent 45ba598e56
commit edd319dc52
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
fs/xfs/xfs_bit.h
View File

@@ -61,15 +61,15 @@ static inline int xfs_highbit64(__uint64_t v)
/* Get low bit set out of 32-bit argument, -1 if none set */ /* Get low bit set out of 32-bit argument, -1 if none set */
static inline int xfs_lowbit32(__uint32_t v) static inline int xfs_lowbit32(__uint32_t v)
{ {
unsigned long t = v; __uint32_t t = v;
return (v) ? find_first_bit(&t, 32) : -1; return (t) ? find_first_bit((unsigned long *)&t, 32) : -1;
} }
/* Get low bit set out of 64-bit argument, -1 if none set */ /* Get low bit set out of 64-bit argument, -1 if none set */
static inline int xfs_lowbit64(__uint64_t v) static inline int xfs_lowbit64(__uint64_t v)
{ {
unsigned long t = v; __uint64_t t = v;
return (v) ? find_first_bit(&t, 64) : -1; return (t) ? find_first_bit((unsigned long *)&t, 64) : -1;
} }
/* Return whether bitmap is empty (1 == empty) */ /* Return whether bitmap is empty (1 == empty) */