kernel.git/arch/s390/include/asm/bitops.h, branch linux-3.10.y

s390/bitops: fix find_next_bit_left

2013-08-12T01:35:25Z

commit 3b0040a47ad63f7147e9e7d2febb61a3b564bb90 upstream. The find_next_bit_left function is broken if used with an offset which is not a multiple of 64. The shift to mask the bits of a 64-bit word not to search is in the wrong direction, the result can be either a bit found smaller than the offset or failure to find a set bit. Signed-off-by: Martin Schwidefsky Signed-off-by: Greg Kroah-Hartman

s390/bitops: get rid of __BITOPS_BARRIER()

2013-04-17T12:07:30Z

Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/bitops: remove unnecessary macro definitions in asm/bitops.h

2013-04-17T12:07:29Z

Remove unused __BITOPS_ALIGN, and replace __BITOPS_WORDSIZE with BITS_PER_LONG. Signed-off-by: Akinobu Mita Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/bitops: find leftmost bit instruction support

2012-11-30T14:40:48Z

The flogr instruction scans a bitmap starting from the leftmost bit. Implement support for these bitops. This could be useful to scan bitmaps like an interrupt vector set by the hardware starting at the leftmost bit. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky

s390/comments: unify copyright messages and remove file names

2012-07-20T09:15:04Z

Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens

s390/headers: replace s390x with CONFIG_64BIT where possible

2012-05-24T08:10:10Z

Replace __s390x__ with CONFIG_64BIT in all places that are not exported to userspace or guarded with #ifdef __KERNEL__. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/headers: remove #ifdef KERNEL from not exported headers

2012-05-24T08:10:05Z

Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

asm-generic: add another generic ext2 atomic bitops

2011-07-26T23:49:46Z

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 Suggested-by: Andreas Dilger Suggested-by: Arnd Bergmann Acked-by: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

s390: use asm-generic/bitops/le.h

2011-05-27T00:12:38Z

The previous style change enables to use asm-generic/bitops/le.h on s390. Signed-off-by: Akinobu Mita Cc: Arnd Bergmann Cc: Russell King Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Greg Ungerer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

arch: add #define for each of optimized find bitops

2011-05-27T00:12:38Z

The style that we normally use in asm-generic is to test the macro itself for existence, so in asm-generic, do: #ifndef find_next_zero_bit_le extern unsigned long find_next_zero_bit_le(const void *addr, unsigned long size, unsigned long offset); #endif and in the architectures, write static inline unsigned long find_next_zero_bit_le(const void *addr, unsigned long size, unsigned long offset) #define find_next_zero_bit_le find_next_zero_bit_le This adds the #define for each of the optimized find bitops in the architectures. Suggested-by: Arnd Bergmann Signed-off-by: Akinobu Mita Acked-by: Hans-Christian Egtvedt Acked-by: Russell King Acked-by: Greg Ungerer Cc: Martin Schwidefsky Cc: Heiko Carstens Acked-by: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kernel.git/arch/s390/include/asm/bitops.h, branch linux-3.10.y

s390/bitops: fix find_next_bit_left

s390/bitops: get rid of __BITOPS_BARRIER()

s390/bitops: remove unnecessary macro definitions in asm/bitops.h

s390/bitops: find leftmost bit instruction support

s390/comments: unify copyright messages and remove file names

s390/headers: replace __s390x__ with CONFIG_64BIT where possible

s390/headers: remove #ifdef __KERNEL__ from not exported headers

asm-generic: add another generic ext2 atomic bitops

s390: use asm-generic/bitops/le.h

arch: add #define for each of optimized find bitops

s390/headers: replace s390x with CONFIG_64BIT where possible

s390/headers: remove #ifdef KERNEL from not exported headers