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tracing: tracepoints for softirq entry/exit - add softirq-to-name array

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Create a 'softirq_to_name' array, which is indexed by softirq #, so
that we can easily convert between the softirq index # and its name, in
order to get more meaningful output messages.

LKML-Reference: <20090312183336.GB3352@redhat.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
This commit is contained in:
Jason Baron 2009-03-12 14:33:36 -04:00 • committed by Steven Rostedt
parent e447e1df2e
commit 5d592b44b2
2 changed files with 13 additions and 1 deletions
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5
include/linux/interrupt.h
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@ -258,6 +258,11 @@ enum
NR_SOFTIRQS
};
/* map softirq index to softirq name. update 'softirq_to_name' in
* kernel/softirq.c when adding a new softirq.
*/
extern char *softirq_to_name[NR_SOFTIRQS];
/* softirq mask and active fields moved to irq_cpustat_t in
* asm/hardirq.h to get better cache usage. KAO
*/