sparc64: Manage NMI watchdog enabling like x86.

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Use a per-cpu 'wd_enabled' boolean and a global atomic_t count
of watchdog NMI enabled cpus which is set to '-1' if something
is wrong with the watchdog and it can't be used.

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2009-09-08 23:16:06 -07:00

parent 825c9fb47a

commit a8f2226455

3 changed files with 45 additions and 19 deletions

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2

arch/sparc/include/asm/nmi.h

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60

arch/sparc/kernel/nmi.c

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2

arch/sparc/oprofile/init.c

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