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VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)
[linux-2.6.git]
/
arch
/
sparc64
/
lib
/
splock.S
diff --git
a/arch/sparc64/lib/splock.S
b/arch/sparc64/lib/splock.S
index
d17a3ba
..
e466ed2
100644
(file)
--- a/
arch/sparc64/lib/splock.S
+++ b/
arch/sparc64/lib/splock.S
@@
-6,6
+6,18
@@
.text
.align 64
.text
.align 64
+ .globl _raw_spin_lock
+_raw_spin_lock: /* %o0 = lock_ptr */
+1: ldstub [%o0], %g7
+ brnz,pn %g7, 2f
+ membar #StoreLoad | #StoreStore
+ retl
+ nop
+2: ldub [%o0], %g7
+ brnz,pt %g7, 2b
+ membar #LoadLoad
+ ba,a,pt %xcc, 1b
+
.globl _raw_spin_lock_flags
_raw_spin_lock_flags: /* %o0 = lock_ptr, %o1 = irq_flags */
1: ldstub [%o0], %g7
.globl _raw_spin_lock_flags
_raw_spin_lock_flags: /* %o0 = lock_ptr, %o1 = irq_flags */
1: ldstub [%o0], %g7