From 8b37adc02f3b229bfa2b93ba3a2d3282d5424c9a Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 23 Mar 2008 01:01:43 -0700 Subject: [PATCH] --- yaml --- r: 88924 b: refs/heads/master c: fd591acd0f0b2382e8c0a839be9974e7c019bdb6 h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/include/asm-x86/bitops_32.h | 40 ++++++++++++++++--------------- 2 files changed, 22 insertions(+), 20 deletions(-) diff --git a/[refs] b/[refs] index 7087aa304825..241d194fe578 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 7edb3cd6cbadb686864b8f180232e4dc69d959e8 +refs/heads/master: fd591acd0f0b2382e8c0a839be9974e7c019bdb6 diff --git a/trunk/include/asm-x86/bitops_32.h b/trunk/include/asm-x86/bitops_32.h index e4d75fcf9c03..2513a81f82aa 100644 --- a/trunk/include/asm-x86/bitops_32.h +++ b/trunk/include/asm-x86/bitops_32.h @@ -20,20 +20,22 @@ static inline int find_first_zero_bit(const unsigned long *addr, unsigned size) if (!size) return 0; - /* This looks at memory. Mark it volatile to tell gcc not to move it around */ - __asm__ __volatile__( - "movl $-1,%%eax\n\t" - "xorl %%edx,%%edx\n\t" - "repe; scasl\n\t" - "je 1f\n\t" - "xorl -4(%%edi),%%eax\n\t" - "subl $4,%%edi\n\t" - "bsfl %%eax,%%edx\n" - "1:\tsubl %%ebx,%%edi\n\t" - "shll $3,%%edi\n\t" - "addl %%edi,%%edx" - :"=d" (res), "=&c" (d0), "=&D" (d1), "=&a" (d2) - :"1" ((size + 31) >> 5), "2" (addr), "b" (addr) : "memory"); + /* This looks at memory. + * Mark it volatile to tell gcc not to move it around + */ + asm volatile("movl $-1,%%eax\n\t" + "xorl %%edx,%%edx\n\t" + "repe; scasl\n\t" + "je 1f\n\t" + "xorl -4(%%edi),%%eax\n\t" + "subl $4,%%edi\n\t" + "bsfl %%eax,%%edx\n" + "1:\tsubl %%ebx,%%edi\n\t" + "shll $3,%%edi\n\t" + "addl %%edi,%%edx" + : "=d" (res), "=&c" (d0), "=&D" (d1), "=&a" (d2) + : "1" ((size + 31) >> 5), "2" (addr), + "b" (addr) : "memory"); return res; } @@ -75,7 +77,7 @@ static inline unsigned find_first_bit(const unsigned long *addr, unsigned size) unsigned long val = *addr++; if (val) return __ffs(val) + x; - x += (sizeof(*addr)<<3); + x += sizeof(*addr) << 3; } return x; } @@ -152,10 +154,10 @@ static inline int fls(int x) #include -#define ext2_set_bit_atomic(lock, nr, addr) \ - test_and_set_bit((nr), (unsigned long *)addr) -#define ext2_clear_bit_atomic(lock, nr, addr) \ - test_and_clear_bit((nr), (unsigned long *)addr) +#define ext2_set_bit_atomic(lock, nr, addr) \ + test_and_set_bit((nr), (unsigned long *)(addr)) +#define ext2_clear_bit_atomic(lock, nr, addr) \ + test_and_clear_bit((nr), (unsigned long *)(addr)) #include