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| author | Jens Axboe <jaxboe@fusionio.com> | 2010-10-19 09:13:04 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-10-19 09:13:04 +0200 |
| commit | fa251f89903d73989e2f63e13d0eaed1e07ce0da (patch) | |
| tree | 3f7fe779941e3b6d67754dd7c44a32f48ea47c74 /arch/sparc/lib/atomic_64.S | |
| parent | dd3932eddf428571762596e17b65f5dc92ca361b (diff) | |
| parent | cd07202cc8262e1669edff0d97715f3dd9260917 (diff) | |
| download | op-kernel-dev-fa251f89903d73989e2f63e13d0eaed1e07ce0da.zip op-kernel-dev-fa251f89903d73989e2f63e13d0eaed1e07ce0da.tar.gz | |
Merge branch 'v2.6.36-rc8' into for-2.6.37/barrier
Conflicts:
block/blk-core.c
drivers/block/loop.c
mm/swapfile.c
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'arch/sparc/lib/atomic_64.S')
| -rw-r--r-- | arch/sparc/lib/atomic_64.S | 36 |
1 files changed, 16 insertions, 20 deletions
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S index 0268210..59186e0 100644 --- a/arch/sparc/lib/atomic_64.S +++ b/arch/sparc/lib/atomic_64.S @@ -21,7 +21,7 @@ atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ add %g1, %o0, %g7 cas [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %icc, 2f + bne,pn %icc, BACKOFF_LABEL(2f, 1b) nop retl nop @@ -36,7 +36,7 @@ atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ sub %g1, %o0, %g7 cas [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %icc, 2f + bne,pn %icc, BACKOFF_LABEL(2f, 1b) nop retl nop @@ -51,11 +51,10 @@ atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ add %g1, %o0, %g7 cas [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %icc, 2f - add %g7, %o0, %g7 - sra %g7, 0, %o0 + bne,pn %icc, BACKOFF_LABEL(2f, 1b) + add %g1, %o0, %g1 retl - nop + sra %g1, 0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) .size atomic_add_ret, .-atomic_add_ret @@ -67,11 +66,10 @@ atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ sub %g1, %o0, %g7 cas [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %icc, 2f - sub %g7, %o0, %g7 - sra %g7, 0, %o0 + bne,pn %icc, BACKOFF_LABEL(2f, 1b) + sub %g1, %o0, %g1 retl - nop + sra %g1, 0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) .size atomic_sub_ret, .-atomic_sub_ret @@ -83,7 +81,7 @@ atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ add %g1, %o0, %g7 casx [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %xcc, 2f + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) nop retl nop @@ -98,7 +96,7 @@ atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ sub %g1, %o0, %g7 casx [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %xcc, 2f + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) nop retl nop @@ -113,11 +111,10 @@ atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ add %g1, %o0, %g7 casx [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %xcc, 2f - add %g7, %o0, %g7 - mov %g7, %o0 - retl + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) nop + retl + add %g1, %o0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) .size atomic64_add_ret, .-atomic64_add_ret @@ -129,10 +126,9 @@ atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ sub %g1, %o0, %g7 casx [%o1], %g1, %g7 cmp %g1, %g7 - bne,pn %xcc, 2f - sub %g7, %o0, %g7 - mov %g7, %o0 - retl + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) nop + retl + sub %g1, %o0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) .size atomic64_sub_ret, .-atomic64_sub_ret |
