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| author |   Peter Zijlstra <peterz@infradead.org> | 2016-04-18 01:16:05 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-06-16 10:48:27 +0200 |
| commit | f8d638e28d7cc858066d2de484d9719dc181593a (patch) | |
| tree | fc50a0f130e664db93932cd9f6bc29cc6d952a92 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | locking/atomic, arch/mips: Implement atomic{,64}_fetch_{add,sub,and,or,xor}() (diff) | |
| download | linux-dev-f8d638e28d7cc858066d2de484d9719dc181593a.tar.xz linux-dev-f8d638e28d7cc858066d2de484d9719dc181593a.zip | |
locking/atomic, arch/mn10300: 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: David Howells <dhowells@redhat.com>
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-am33-list@redhat.com
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions