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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2013-03-26 09:05:36 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-04-17 14:07:30 +0200 |
| commit | 5294ee00a16567355c85b849742e5219aad880d0 (patch) | |
| tree | 23d83d5b0dde5e554e7ecb5d13dc47a6f6a83bdc /arch/s390/include/asm/bitops.h | |
| parent | s390/cio: Use BITS_TO_LONGS() instead of __BITOPS_WORDS() (diff) | |
| download | linux-5294ee00a16567355c85b849742e5219aad880d0.tar.xz linux-5294ee00a16567355c85b849742e5219aad880d0.zip | |
s390/bitops: get rid of __BITOPS_BARRIER()
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/bitops.h')
| -rw-r--r-- | arch/s390/include/asm/bitops.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 2bc357408f43..4d8604e311f3 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -98,7 +98,6 @@ extern const char _sb_findmap[]; #endif /* CONFIG_64BIT */ #define __BITOPS_WORDS(bits) (((bits) + BITS_PER_LONG - 1) / BITS_PER_LONG) -#define __BITOPS_BARRIER() asm volatile("" : : : "memory") #ifdef CONFIG_SMP /* @@ -164,7 +163,7 @@ test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr) mask = 1UL << (nr & (BITS_PER_LONG - 1)); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR); - __BITOPS_BARRIER(); + barrier(); return (old & mask) != 0; } @@ -183,7 +182,7 @@ test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr) mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND); - __BITOPS_BARRIER(); + barrier(); return (old ^ new) != 0; } @@ -202,7 +201,7 @@ test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr) mask = 1UL << (nr & (BITS_PER_LONG - 1)); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR); - __BITOPS_BARRIER(); + barrier(); return (old & mask) != 0; } #endif /* CONFIG_SMP */ |