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authorRabin Vincent <rabin.vincent@stericsson.com>2012-06-15 05:23:32 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-07-09 12:39:37 -0400
commit02df19b4227e5b799e4642e88b568f9474fa78d0 (patch)
treeb83b03c19a4a0908aec006be85feb0cf2df8baa8 /arch/um/kernel/sysrq.c
parentffae894035a1e0c46869eb81d53ea88ca4eaf2f0 (diff)
ARM: 7424/1: update die handler from x86
Robustify ARM's die() handling with improvements from x86: - Fix for a deadlock (before panic in the case of panic_on_oops) if we oops under a spinlock which is also used from interrupt handler, since the old code was unconditionally enabling interrupts. - Usage of arch spinlock so lockdep etc doesn't get involved while we're trying to dump out oopses. - Deadlock prevention in the unlikely event that die() recurses. The changes all touch the same few lines of code, so they're done together in one patch. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/um/kernel/sysrq.c')
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