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4 Commits

Author SHA1 Message Date
Ralf Baechle
8a1e97ee2e [MIPS] SMTC: Fix recursion in instant IPI replay code. 
local_irq_restore -> raw_local_irq_restore -> irq_restore_epilog ->
	smtc_ipi_replay -> smtc_ipi_dq -> spin_unlock_irqrestore ->
	_spin_unlock_irqrestore -> local_irq_restore

The recursion does abort when there is no more IPI queued for a CPU, so
this isn't usually fatal which is why we got away with this for so long
until this was discovered by code inspection.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2007-03-29 23:46:36 +01:00
Ralf Baechle
22e651c6ae [MIPS] SMTC: <asm/smtc_ipi.h> must include <linux/spinlock.h> 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2007-03-07 00:07:15 +00:00
Ralf Baechle
5868756dcb [MIPS] SMTC: Make a bunch of functions and variables static. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2007-02-06 16:53:22 +00:00
Ralf Baechle
41c594ab65 [MIPS] MT: Improved multithreading support. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2006-04-19 04:14:28 +02:00