sh: Fix up UP deadlock with SMP-aware cache ops.

Browse source

This builds on top of the previous reversion and implements a special
on_each_cpu() variant that simple disables preemption across the call
while leaving the interrupt state to the function itself. There were some
unintended consequences with IRQ disabling in some of these paths on UP
that ran in to a deadlock scenario with IRQs being missed.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

...

This commit is contained in:

Paul Mundt 2009-09-01 21:21:36 +09:00

parent 983f4c514c

commit 6f3795788b

1 changed files with 18 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

27

arch/sh/mm/cache.c

View file