linux/arch/parisc
Helge Deller e82a3b7512 parisc: ensure broadcast tlb purge runs single threaded
The TLB flushing functions on hppa, which causes PxTLB broadcasts on the system
bus, needs to be protected by irq-safe spinlocks to avoid irq handlers to deadlock
the kernel. The deadlocks only happened during I/O intensive loads and triggered
pretty seldom, which is why this bug went so long unnoticed.

Signed-off-by: Helge Deller <deller@gmx.de>
[edited to use spin_lock_irqsave on UP as well since we'd been locking there
 all this time anyway, --kyle]
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-07-03 03:34:09 +00:00
..
configs parisc: update defconfigs 2009-03-13 01:33:34 -04:00
hpux ptrace: remove PT_DTRACE from avr32, mn10300, parisc, s390, sh, xtensa 2009-06-18 13:03:48 -07:00
include/asm parisc: ensure broadcast tlb purge runs single threaded 2009-07-03 03:34:09 +00:00
kernel parisc: ensure broadcast tlb purge runs single threaded 2009-07-03 03:34:09 +00:00
lib parisc: fix mismatched parenthesis in memcpy.c 2009-07-03 03:34:09 +00:00
math-emu parisc: decode_exc.c should include kernel.h 2009-07-03 03:34:08 +00:00
mm parisc: kill WARN in free_initmem when DEBUG_KERNEL 2009-07-03 03:34:06 +00:00
oprofile oprofile: more whitespace fixes 2008-10-15 20:55:51 +02:00
defpalo.conf Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2009-04-03 09:52:04 -07:00
Kconfig.debug alpha/parisc: remove config variable DEBUG_RWLOCK 2008-02-06 10:41:03 -08:00
Makefile parisc: add ftrace (function and graph tracer) functionality 2009-03-31 02:51:34 +00:00
nm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00