diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2004-08-02 20:03:59 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2004-08-02 20:03:59 +0000 |
| commit | d3637a5f5d5815efb19d46b95ed22531960be943 (patch) | |
| tree | 1b0367b1bd7934c7d5321695fae3b8e416280445 /sys/arch | |
| parent | d8b873fc52e529230648db830ff883d36312a314 (diff) | |
Remove a completly unnecessary compare that sneaked in while
I was debugging some completly other problem in this function.
cmpxchgq already does an equivalent compare.
Discussed on icb a few days ago.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/amd64/amd64/mutex.S | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/sys/arch/amd64/amd64/mutex.S b/sys/arch/amd64/amd64/mutex.S index a4018c03333..a833f83c4e0 100644 --- a/sys/arch/amd64/amd64/mutex.S +++ b/sys/arch/amd64/amd64/mutex.S @@ -58,7 +58,6 @@ ENTRY(mtx_enter) lock #endif cmpxchgq %rcx, MTX_OWNER(%rdi) # test_and_set(mtx->mtx_owner) - cmpq $0, %rax jne 3f movl %edx, MTX_OLDIPL(%rdi) ret |