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authorAkinobu Mita <akinobu.mita@gmail.com>2011-07-26 16:09:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 16:49:46 -0700
commit148817ba092f9f6edd35bad3c6c6b8e8f90fe2ed (patch)
tree75cc7df62c9713bc1a44738026878a79653faa38 /arch/parisc
parentb2c9cd3793e5878e301ec2219785a7b8ca402ef1 (diff)
downloadop-kernel-dev-148817ba092f9f6edd35bad3c6c6b8e8f90fe2ed.zip
op-kernel-dev-148817ba092f9f6edd35bad3c6c6b8e8f90fe2ed.tar.gz
asm-generic: add another generic ext2 atomic bitops
The majority of architectures implement ext2 atomic bitops as test_and_{set,clear}_bit() without spinlock. This adds this type of generic implementation in ext2-atomic-setbit.h and use it wherever possible. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Suggested-by: Andreas Dilger <adilger@dilger.ca> Suggested-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/include/asm/bitops.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 43c516f..4e833aa 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -223,14 +223,7 @@ static __inline__ int fls(int x)
#ifdef __KERNEL__
#include <asm-generic/bitops/le.h>
-
-/* '3' is bits per byte */
-#define LE_BYTE_ADDR ((sizeof(unsigned long) - 1) << 3)
-
-#define ext2_set_bit_atomic(l,nr,addr) \
- test_and_set_bit((nr) ^ LE_BYTE_ADDR, (unsigned long *)addr)
-#define ext2_clear_bit_atomic(l,nr,addr) \
- test_and_clear_bit( (nr) ^ LE_BYTE_ADDR, (unsigned long *)addr)
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
#endif /* __KERNEL__ */
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