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Diffstat (limited to 'arch/arm/kernel/swp_emulate.c')
-rw-r--r--arch/arm/kernel/swp_emulate.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c
index 67ca8578c6d8..587fdfe1a72c 100644
--- a/arch/arm/kernel/swp_emulate.c
+++ b/arch/arm/kernel/swp_emulate.c
@@ -142,14 +142,6 @@ static int emulate_swpX(unsigned int address, unsigned int *data,
while (1) {
unsigned long temp;
- /*
- * Barrier required between accessing protected resource and
- * releasing a lock for it. Legacy code might not have done
- * this, and we cannot determine that this is not the case
- * being emulated, so insert always.
- */
- smp_mb();
-
if (type == TYPE_SWPB)
__user_swpb_asm(*data, address, res, temp);
else
@@ -162,13 +154,6 @@ static int emulate_swpX(unsigned int address, unsigned int *data,
}
if (res == 0) {
- /*
- * Barrier also required between acquiring a lock for a
- * protected resource and accessing the resource. Inserted for
- * same reason as above.
- */
- smp_mb();
-
if (type == TYPE_SWPB)
swpbcounter++;
else