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

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

Disintegrate asm/system.h for S390

2012-03-28T17:30:02Z

Disintegrate asm/system.h for S390. Signed-off-by: David Howells cc: linux-s390@vger.kernel.org

atomic: cleanup asm-generic atomic*.h inclusion

2011-07-26T23:49:47Z

After changing all consumers of atomics to include , we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma Cc: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

atomic: move atomic_add_unless to generic code

2011-07-26T23:49:47Z

This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma Signed-off-by: Hans-Christian Egtvedt Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

atomic: use

2011-07-26T23:49:47Z

This allows us to move duplicated code in (atomic_inc_not_zero() for now) to Signed-off-by: Arun Sharma Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Cc: Eric Dumazet Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi

[S390] atomic: use inline asm

2011-02-17T12:13:59Z

Use inline assemblies for atomic_read/set(). This way there shouldn't be any questions or subtle volatile semantics left. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] atomic: use ACCESS_ONCE() for atomic_read()

2011-02-17T12:13:58Z

Let's make atomic_read() and atomic_set() behave like on all/most other architectures. Generated code is identical with gcc 4.5.2. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] atomic: implement atomic64_dec_if_positive

2010-05-26T21:26:29Z

Implement atomic64_dec_if_positive and add missing system.h header include. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] use inline assembly contraints available with gcc 3.3.3

2010-02-26T21:37:30Z

Drop support to compile the kernel with gcc versions older than 3.3.3. This allows us to use the "Q" inline assembly contraint on some more inline assemblies without duplicating a lot of complex code (e.g. __xchg and __cmpxchg). The distinction for older gcc versions can be removed which saves a few lines and simplifies the code. Reviewed-by: Heiko Carstens Signed-off-by: Martin Schwidefsky