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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