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perf_counter: fix print debug irq disable
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 13 May 2009 06:12:51 +0000 (08:12 +0200)
committerIngo Molnar <mingo@elte.hu>
Wed, 13 May 2009 06:17:37 +0000 (08:17 +0200)
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
bash/15802 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (sysrq_key_table_lock){?.....},

Don't unconditionally enable interrupts in the perf_counter_print_debug()
path.

[ Impact: fix potential deadlock pointed out by lockdep ]

LKML-Reference: <new-submission>
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
arch/x86/kernel/cpu/perf_counter.c patch | blob | history

diff --cc arch/x86/kernel/cpu/perf_counter.c
Simple merge
Pandora Kernel Repository