context_tracking: Move exception handling to generic code
authorFrederic Weisbecker <fweisbec@gmail.com>
Sat, 23 Feb 2013 23:23:25 +0000 (00:23 +0100)
committerFrederic Weisbecker <fweisbec@gmail.com>
Thu, 7 Mar 2013 16:09:25 +0000 (17:09 +0100)
commit56dd9470d7c8734f055da2a6bac553caf4a468eb
tree5a7dc1ee23be1e15171c301516d20db90eee9435
parent6dbe51c251a327e012439c4772097a13df43c5b8
context_tracking: Move exception handling to generic code

Exceptions handling on context tracking should share common
treatment: on entry we exit user mode if the exception triggered
in that context. Then on exception exit we return to that previous
context.

Generalize this to avoid duplication across archs.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Mats Liljegren <mats.liljegren@enea.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
arch/x86/include/asm/context_tracking.h
arch/x86/kernel/kvm.c
arch/x86/kernel/traps.c
arch/x86/mm/fault.c
include/linux/context_tracking.h