Peter Zijlstra e898eb27ff locking/atomic, arch/metag: 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>
Acked-by: James Hogan <james.hogan@imgtec.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
Cc: linux-metag@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2016-06-16 10:48:26 +02:00

..

boot

metag: enable building of all dtbs

2015-10-27 16:12:16 -05:00

configs

metag: minimal TZ1090 (Comet) SoC infrastructure

2013-06-13 12:14:07 +01:00

include

locking/atomic, arch/metag: Implement atomic_fetch_{add,sub,and,or,xor}()

2016-06-16 10:48:26 +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

lib

metag: move EXPORT_SYMBOL(csum_partial) to metag_ksyms.c

2013-07-04 10:00:02 +01:00

mm

metag: mm: use hugetlb_bad_size()

2016-05-19 19:12:14 -07:00

oprofile

metag: OProfile support

2013-03-15 13:21:05 +00:00

tbx

metag: Fix misspellings in comments.

2016-04-18 12:45:54 +02:00

Kconfig

lib/GCD.c: use binary GCD algorithm instead of Euclidean

2016-05-20 17:58:30 -07:00

Kconfig.debug

consolidate per-arch stack overflow debugging options

2013-07-04 11:25:39 -07:00

Kconfig.soc

metag: remove ARCH_WANT_OPTIONAL_GPIOLIB

2016-04-26 13:39:22 +02:00

Makefile

metag: use common make variables for dtb builds

2015-10-27 16:12:15 -05:00