tree 9909e949a13f72a235cb30071f4aef5eef189879
parent 6775de4984ea83ce39f19a40c09f8813d7423831
author Frederic Weisbecker <frederic@kernel.org> 1605626197 +0100
committer Peter Zijlstra <peterz@infradead.org> 1605781542 +0100

x86: Support HAVE_CONTEXT_TRACKING_OFFSTACK

A lot of ground work has been performed on x86 entry code. Fragile path
between user_enter() and user_exit() have IRQs disabled. Uses of RCU and
intrumentation in these fragile areas have been explicitly annotated
and protected.

This architecture doesn't need exception_enter()/exception_exit()
anymore and has therefore earned CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20201117151637.259084-6-frederic@kernel.org