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authorSimon Kagstrom <simon.kagstrom@netinsight.net>2009-08-24 09:10:16 +0200
committerWolfgang Denk <wd@denx.de>2009-09-15 22:35:20 +0200
commita6e19d69f63c14b7672c65ca4b014621c6fd0201 (patch)
tree2edb6ced483b7fc895ae2e38bbf93a4102e4f427 /include
parent52d61227b66d4099b39c8309ab37cb67ee09a405 (diff)
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arm: Define test_and_set_bit and test_and_clear bit for ARM
Needed for (e.g.) ubifs support to work. Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Diffstat (limited to 'include')
-rw-r--r--include/asm-arm/bitops.h28
1 files changed, 25 insertions, 3 deletions
diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h
index 854e225..3c7b00c 100644
--- a/include/asm-arm/bitops.h
+++ b/include/asm-arm/bitops.h
@@ -17,6 +17,8 @@
#ifdef __KERNEL__
+#include <asm/proc/system.h>
+
#define smp_mb__before_clear_bit() do { } while (0)
#define smp_mb__after_clear_bit() do { } while (0)
@@ -37,8 +39,6 @@ static inline void __change_bit(int nr, volatile void *addr)
*p ^= mask;
}
-extern int test_and_set_bit(int nr, volatile void * addr);
-
static inline int __test_and_set_bit(int nr, volatile void *addr)
{
unsigned long mask = BIT_MASK(nr);
@@ -49,7 +49,17 @@ static inline int __test_and_set_bit(int nr, volatile void *addr)
return (old & mask) != 0;
}
-extern int test_and_clear_bit(int nr, volatile void * addr);
+static inline int test_and_set_bit(int nr, volatile void * addr)
+{
+ unsigned long flags;
+ int out;
+
+ local_irq_save(flags);
+ out = __test_and_set_bit(nr, addr);
+ local_irq_restore(flags);
+
+ return out;
+}
static inline int __test_and_clear_bit(int nr, volatile void *addr)
{
@@ -61,6 +71,18 @@ static inline int __test_and_clear_bit(int nr, volatile void *addr)
return (old & mask) != 0;
}
+static inline int test_and_clear_bit(int nr, volatile void * addr)
+{
+ unsigned long flags;
+ int out;
+
+ local_irq_save(flags);
+ out = __test_and_clear_bit(nr, addr);
+ local_irq_restore(flags);
+
+ return out;
+}
+
extern int test_and_change_bit(int nr, volatile void * addr);
static inline int __test_and_change_bit(int nr, volatile void *addr)