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| author | David S. Miller <davem@davemloft.net> | 2008-11-15 21:33:25 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-04 17:16:47 (GMT) |
| commit | 293666b7a17cb7a389fc274980439212386a19c4 (patch) | |
| tree | 075cc7661d2113cf04da7130b3383979d8024206 /arch/sparc64/mm/init.c | |
| parent | 64f2dde3f743c8a1ad8c0a1aa74166c1034afd92 (diff) | |
| download | linux-293666b7a17cb7a389fc274980439212386a19c4.tar.xz | |
sparc64: Stop using memory barriers for atomics and locks.
The kernel always executes in the TSO memory model now,
so none of this stuff is necessary any more.
With helpful feedback from Nick Piggin.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/mm/init.c')
| -rw-r--r-- | arch/sparc64/mm/init.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 185f346..4bd6396 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -214,7 +214,6 @@ static inline void set_dcache_dirty(struct page *page, int this_cpu) "or %%g1, %0, %%g1\n\t" "casx [%2], %%g7, %%g1\n\t" "cmp %%g7, %%g1\n\t" - "membar #StoreLoad | #StoreStore\n\t" "bne,pn %%xcc, 1b\n\t" " nop" : /* no outputs */ @@ -236,7 +235,6 @@ static inline void clear_dcache_dirty_cpu(struct page *page, unsigned long cpu) " andn %%g7, %1, %%g1\n\t" "casx [%2], %%g7, %%g1\n\t" "cmp %%g7, %%g1\n\t" - "membar #StoreLoad | #StoreStore\n\t" "bne,pn %%xcc, 1b\n\t" " nop\n" "2:" |