Peter Zijlstra 4be7dd3935 locking/atomic, arch/hexagon: 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: Richard Kuo <rkuo@codeaurora.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-06-16 10:48:25 +02:00
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configs	Hexagon: Comet platform support	2011-11-01 07:34:21 -07:00
include	locking/atomic, arch/hexagon: Implement atomic_fetch_{add,sub,and,or,xor}()	2016-06-16 10:48:25 +02:00
kernel	vdso: make arch_setup_additional_pages wait for mmap_sem for write killable	2016-05-23 17:04:14 -07:00
lib	hexagon: Fix misspellings in comments.	2016-04-18 12:45:54 +02:00
mm	hexagon: Fix build failures in linux-next	2014-12-16 13:27:12 -06:00
Kconfig	dma-mapping: always provide the dma_map_ops based implementation	2016-01-20 17:09:18 -08:00
Makefile	Hexagon: change arch version config to allow comparisons	2013-04-30 19:40:22 -05:00