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| author | Ingo Molnar <mingo@elte.hu> | 2011-05-07 10:51:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-07 10:51:48 +0200 |
| commit | 4cb1f43ce8c72ee453c00fcb9f6ee9c4ebd03f98 (patch) | |
| tree | 15e64f192b54ea01fd640d69eed0cabed2baaaa9 /lib/find_next_bit.c | |
| parent | 9de4966a4d218f29c68e96e8e7b4d2840dedec79 (diff) | |
| parent | 0ee5623f9a6e52df90a78bd21179f8ab370e102e (diff) | |
Merge commit 'v2.6.39-rc6' into x86/cleanups
Merge reason: move to a (much) newer upstream base.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/find_next_bit.c')
| -rw-r--r-- | lib/find_next_bit.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/lib/find_next_bit.c b/lib/find_next_bit.c index 24c59ded47a0..b0a8767282bf 100644 --- a/lib/find_next_bit.c +++ b/lib/find_next_bit.c @@ -160,6 +160,7 @@ EXPORT_SYMBOL(find_first_zero_bit); #endif /* CONFIG_GENERIC_FIND_FIRST_BIT */ #ifdef __BIG_ENDIAN +#ifdef CONFIG_GENERIC_FIND_BIT_LE /* include/linux/byteorder does not support "unsigned long" type */ static inline unsigned long ext2_swabp(const unsigned long * x) @@ -185,15 +186,16 @@ static inline unsigned long ext2_swab(const unsigned long y) #endif } -unsigned long generic_find_next_zero_le_bit(const unsigned long *addr, unsigned +unsigned long find_next_zero_bit_le(const void *addr, unsigned long size, unsigned long offset) { - const unsigned long *p = addr + BITOP_WORD(offset); + const unsigned long *p = addr; unsigned long result = offset & ~(BITS_PER_LONG - 1); unsigned long tmp; if (offset >= size) return size; + p += BITOP_WORD(offset); size -= result; offset &= (BITS_PER_LONG - 1UL); if (offset) { @@ -226,18 +228,18 @@ found_middle: found_middle_swap: return result + ffz(ext2_swab(tmp)); } +EXPORT_SYMBOL(find_next_zero_bit_le); -EXPORT_SYMBOL(generic_find_next_zero_le_bit); - -unsigned long generic_find_next_le_bit(const unsigned long *addr, unsigned +unsigned long find_next_bit_le(const void *addr, unsigned long size, unsigned long offset) { - const unsigned long *p = addr + BITOP_WORD(offset); + const unsigned long *p = addr; unsigned long result = offset & ~(BITS_PER_LONG - 1); unsigned long tmp; if (offset >= size) return size; + p += BITOP_WORD(offset); size -= result; offset &= (BITS_PER_LONG - 1UL); if (offset) { @@ -271,5 +273,7 @@ found_middle: found_middle_swap: return result + __ffs(ext2_swab(tmp)); } -EXPORT_SYMBOL(generic_find_next_le_bit); +EXPORT_SYMBOL(find_next_bit_le); + +#endif /* CONFIG_GENERIC_FIND_BIT_LE */ #endif /* __BIG_ENDIAN */ |