powerpc: Fix various issues with return to userspace
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 22 Feb 2012 05:48:32 +0000 (16:48 +1100)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 22 Feb 2012 05:48:53 +0000 (16:48 +1100)
commit18b246fa60dd4bfc71c78d669e2ffaa5df454d6a
treeea9d8fecb9f83b4223032ffd9eb15a2d5bdbf335
parentaa491ad3d4bf3c7994a419b3bb1c91b9b4fd2a8a
powerpc: Fix various issues with return to userspace

We have a few problems when returning to userspace. This is a
quick set of fixes for 3.3, I'll look into a more comprehensive
rework for 3.4. This fixes:

 - We kept interrupts soft-disabled when schedule'ing or calling
do_signal when returning to userspace as a result of a hardware
interrupt.

 - Rename do_signal to do_notify_resume like all other archs (and
do_signal_pending back to do_signal, which it was before Roland
changed it).

 - Add the missing call to key_replace_session_keyring() to
do_notify_resume().

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/kernel/entry_32.S
arch/powerpc/kernel/entry_64.S
arch/powerpc/kernel/signal.c
arch/powerpc/kernel/signal.h