x86: Syscall hooks for userspace RCU extended QS
authorFrederic Weisbecker <fweisbec@gmail.com>
Wed, 11 Jul 2012 18:26:34 +0000 (20:26 +0200)
committerFrederic Weisbecker <fweisbec@gmail.com>
Wed, 26 Sep 2012 13:47:04 +0000 (15:47 +0200)
commitbf5a3c13b939813d28ce26c01425054c740d6731
treed77553506001a9ff39ff4acf96f70c7d58999dba
parent04e7e951532b390b16feb070be9972b8fad2fc57
x86: Syscall hooks for userspace RCU extended QS

Add syscall slow path hooks to notify syscall entry
and exit on CPUs that want to support userspace RCU
extended quiescent state.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Alessio Igor Bogani <abogani@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Avi Kivity <avi@redhat.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Max Krasnyansky <maxk@qualcomm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sven-Thorsten Dietrich <thebigcorporation@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
arch/x86/include/asm/thread_info.h
arch/x86/kernel/ptrace.c