diff options
| author | Greg KH <greg@press.(none)> | 2005-06-27 22:07:56 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-27 22:07:56 -0700 |
| commit | 8644d2a42bdba2d513f71c07eaf1b6f9b718b8eb (patch) | |
| tree | c43b6c2fdf1b68b66906a2de69446dcec0f9af6b /arch/sparc64/lib/dec_and_lock.S | |
| parent | 1cde8a16815bd85c8137d1ea556398983c597c11 (diff) | |
| parent | 99f95e5286df2f69edab8a04c7080d986ee4233b (diff) | |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/sparc64/lib/dec_and_lock.S')
| -rw-r--r-- | arch/sparc64/lib/dec_and_lock.S | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/sparc64/lib/dec_and_lock.S b/arch/sparc64/lib/dec_and_lock.S index 7e6fdaebedb..8ee288dd0af 100644 --- a/arch/sparc64/lib/dec_and_lock.S +++ b/arch/sparc64/lib/dec_and_lock.S @@ -48,8 +48,9 @@ start_to_zero: #endif to_zero: ldstub [%o1], %g3 + membar #StoreLoad | #StoreStore brnz,pn %g3, spin_on_lock - membar #StoreLoad | #StoreStore + nop loop2: cas [%o0], %g2, %g7 /* ASSERT(g7 == 0) */ cmp %g2, %g7 @@ -71,8 +72,9 @@ loop2: cas [%o0], %g2, %g7 /* ASSERT(g7 == 0) */ nop spin_on_lock: ldub [%o1], %g3 + membar #LoadLoad brnz,pt %g3, spin_on_lock - membar #LoadLoad + nop ba,pt %xcc, to_zero nop nop |