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3537 add kstat_waitq_enter and friends

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These kstat interfaces are required to port
"Illumos #3537 want pool io kstats" to ZFS on Linux.

kstat_waitq_enter()
kstat_waitq_exit()
kstat_runq_enter()
kstat_runq_exit()

Additionally, zero out the ks_data buffer in __kstat_create() so
that the kstat_io_t counters are initialized to zero.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Ned Bass
2013-08-26 16:42:11 -07:00
committed by Brian Behlendorf
parent ffbf0e57c2
commit f483a97a41
2 changed files with 71 additions and 1 deletions
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include/sys/kstat.h
+4
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@@ -189,6 +189,10 @@ extern kstat_t *__kstat_create(const char *ks_module, int ks_instance,
uchar_t ks_flags);
extern void __kstat_install(kstat_t *ksp);
extern void __kstat_delete(kstat_t *ksp);
extern void kstat_waitq_enter(kstat_io_t *);
extern void kstat_waitq_exit(kstat_io_t *);
extern void kstat_runq_enter(kstat_io_t *);
extern void kstat_runq_exit(kstat_io_t *);
#define kstat_set_raw_ops(k,h,d,a) __kstat_set_raw_ops(k,h,d,a)
#define kstat_create(m,i,n,c,t,s,f) __kstat_create(m,i,n,c,t,s,f)