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| author | James Morris <jmorris@namei.org> | 2009-06-09 09:27:53 +1000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-06-09 09:27:53 +1000 |
| commit | 0b4ec6e4e01d98e55ae325a41304cccd87fa4c0f (patch) | |
| tree | 1e075fdf4aaf0c5c003564b3f3414bb4a92ef2ed /arch/arm/lib/bitops.h | |
| parent | 04288f42033607099cebf5ca15ce8dcec3a9688b (diff) | |
| parent | 3af968e066d593bc4dacc021715f3e95ddf0996f (diff) | |
Merge branch 'master' into next
Diffstat (limited to 'arch/arm/lib/bitops.h')
| -rw-r--r-- | arch/arm/lib/bitops.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h index 2e787d40d59..c7f2627385e 100644 --- a/arch/arm/lib/bitops.h +++ b/arch/arm/lib/bitops.h @@ -18,12 +18,14 @@ mov r2, #1 add r1, r1, r0, lsr #3 @ Get byte offset mov r3, r2, lsl r3 @ create mask + smp_dmb 1: ldrexb r2, [r1] ands r0, r2, r3 @ save old value of bit \instr r2, r2, r3 @ toggle bit strexb ip, r2, [r1] cmp ip, #0 bne 1b + smp_dmb cmp r0, #0 movne r0, #1 2: mov pc, lr |