Chris Metcalf 583b24a210 arch/tile: adopt prepare_exit_to_usermode() model from x86 ... This change is a prerequisite change for TASK_ISOLATION but also stands on its own for readability and maintainability. The existing tile do_work_pending() was called in a loop from assembly on the slow path; this change moves the loop into C code as well. For the x86 version see commit c5c46f59e4 ("x86/entry: Add new, comprehensible entry and exit handlers written in C"). This change exposes a pre-existing bug on the older tilepro platform; the singlestep processing is done last, but on tilepro (unlike tilegx) we enable interrupts while doing that processing, so we could in theory miss a signal or other asynchronous event. A future change could fix this by breaking the singlestep work into a "prepare" step done in the main loop, and a "trigger" step done after exiting the loop. Since this change is intended as purely a restructuring change, we call out the bug explicitly now, but don't yet fix it. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>		2016-01-18 14:49:09 -05:00
..
configs	netpoll: delete defconfig references to obsolete NETPOLL_TRAP	2014-11-29 21:13:48 -08:00
gxio	tile: use global strscpy() rather than private copy	2015-09-10 15:37:02 -04:00
include	arch/tile: adopt prepare_exit_to_usermode() model from x86	2016-01-18 14:49:09 -05:00
kernel	arch/tile: adopt prepare_exit_to_usermode() model from x86	2016-01-18 14:49:09 -05:00
kvm	rcu: Make SRCU optional by using CONFIG_SRCU	2015-01-06 11:04:29 -08:00
lib	tile: Provide atomic_{or,xor,and}	2015-07-27 14:06:24 +02:00
mm	kmap_atomic_to_page() has no users, remove it	2015-11-09 15:11:24 -08:00
Kbuild
Kconfig	tile/jump_label: add jump label support for TILE-Gx	2016-01-04 15:09:31 -05:00
Kconfig.debug	tile: remove DEBUG_EXTRA_FLAGS kernel config option	2013-09-03 14:52:17 -04:00
Makefile	tile: remove DEBUG_EXTRA_FLAGS kernel config option	2013-09-03 14:52:17 -04:00