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linux/arch/blackfin/include
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Peter Zijlstra e87fc0ec07 locking/atomic, arch/blackfin: Implement atomic_fetch_{add,sub,and,or,xor}() 
Implement FETCH-OP atomic primitives, these are very similar to the
existing OP-RETURN primitives we already have, except they return the
value of the atomic variable _before_ modification.

This is especially useful for irreversible operations -- such as
bitops (because it becomes impossible to reconstruct the state prior
to modification).

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
History 2016-06-16 10:48:23 +02:00
..
asm locking/atomic, arch/blackfin: Implement atomic_fetch_{add,sub,and,or,xor}() 2016-06-16 10:48:23 +02:00
mach-common blackfin: SEC: clean up SEC interrupt initialization 2012-12-14 11:20:22 +08:00
uapi/asm blackfin: Wire up missing syscalls 2015-04-24 11:00:35 +08:00