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locking, sparc64: Fix atomics

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The patch folding the atomic ops had a silly fail in the _return primitives.

Fixes: 4f3316c2b5 ("locking,arch,sparc: Fold atomic_ops")
Reported-by: Guenter Roeck <[email protected]>
Tested-by: Guenter Roeck <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Stephen Rothwell <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2014-09-02 11:40:16 +02:00 • committed by Ingo Molnar
commit caa17d49f9
1 changed files with 2 additions and 2 deletions
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4
arch/sparc/lib/atomic_64.S
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@ -37,7 +37,7 @@ ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
cas [%o1], %g1, %g7; \
cmp %g1, %g7; \
bne,pn %icc, BACKOFF_LABEL(2f, 1b); \
add %g1, %o0, %g1; \
op %g1, %o0, %g1; \
retl; \
sra %g1, 0, %o0; \
2: BACKOFF_SPIN(%o2, %o3, 1b); \
@ -76,7 +76,7 @@ ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
bne,pn %xcc, BACKOFF_LABEL(2f, 1b); \
nop; \
retl; \
add %g1, %o0, %o0; \
op %g1, %o0, %o0; \
2: BACKOFF_SPIN(%o2, %o3, 1b); \
ENDPROC(atomic64_##op##_return);