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
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arm	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-12-13 12:41:10 -08:00
arm64	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-12-13 12:41:10 -08:00
avr32
blackfin
c6x
cris
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h8300
hexagon
ia64
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microblaze
mips	MIPS: fix DMA contiguous allocation	2015-12-12 10:15:34 -08:00
mn10300
nios2
openrisc
parisc	parisc: Disable huge pages on Mako machines	2015-12-12 16:45:23 +01:00
powerpc	Revert "powerpc/eeh: Don't unfreeze PHB PE after reset"	2015-12-09 14:05:10 +11:00
s390
score
sh	sh64: fix __NR_fgetxattr	2015-12-12 10:15:34 -08:00
sparc
tile	arch/tile: adopt prepare_exit_to_usermode() model from x86	2016-01-18 14:49:09 -05:00
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unicore32
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xtensa
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