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Peter Zijlstra 1af5de9af1 locking/atomic, arch/tile: Implement atomic{,64}_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>
Acked-by: Chris Metcalf <cmetcalf@mellanox.com>
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: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 		2016-06-16 10:48:30 +02:00
..
configs Merge branch 'akpm' (patches from Andrew) 2016-05-23 19:42:28 -07:00
gxio Fix typo 2016-05-23 12:17:22 -04:00
include locking/atomic, arch/tile: Implement atomic{,64}_fetch_{add,sub,and,or,xor}() 2016-06-16 10:48:30 +02:00
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-05-25 17:05:40 -07:00
kvm
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lib locking/atomic, arch/tile: Implement atomic{,64}_fetch_{add,sub,and,or,xor}() 2016-06-16 10:48:30 +02:00
mm tile: mm: use hugetlb_bad_size() 2016-05-19 19:12:14 -07:00
Kbuild
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Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2016-05-23 19:05:11 -07:00
Kconfig.debug
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Makefile
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