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author | jhb <jhb@FreeBSD.org> | 2012-03-08 19:41:05 +0000 |
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committer | jhb <jhb@FreeBSD.org> | 2012-03-08 19:41:05 +0000 |
commit | 4fea355eb2254754b2e522d87d81c5562252116a (patch) | |
tree | 2da9212f02713305c4064fc6709c0a7a490815ce /sys/kern/kern_kthread.c | |
parent | 486b631cb38cbd91bd7a8f6ab87a6d0ecdf7a8ac (diff) | |
download | FreeBSD-src-4fea355eb2254754b2e522d87d81c5562252116a.zip FreeBSD-src-4fea355eb2254754b2e522d87d81c5562252116a.tar.gz |
Add a new sched_clear_name() method to the scheduler interface to clear
the cached name used for KTR_SCHED traces when a thread's name changes.
This way KTR_SCHED traces (and thus schedgraph) will notice when a thread's
name changes, most commonly via execve().
MFC after: 2 weeks
Diffstat (limited to 'sys/kern/kern_kthread.c')
-rw-r--r-- | sys/kern/kern_kthread.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/kern/kern_kthread.c b/sys/kern/kern_kthread.c index dc3fdab..9dcdeb0 100644 --- a/sys/kern/kern_kthread.c +++ b/sys/kern/kern_kthread.c @@ -115,6 +115,9 @@ kproc_create(void (*func)(void *), void *arg, va_start(ap, fmt); vsnprintf(td->td_name, sizeof(td->td_name), fmt, ap); va_end(ap); +#ifdef KTR + sched_clear_tdname(td); +#endif /* call the processes' main()... */ cpu_set_fork_handler(td, func, arg); @@ -453,6 +456,9 @@ kproc_kthread_add(void (*func)(void *), void *arg, va_start(ap, fmt); vsnprintf(td->td_name, sizeof(td->td_name), fmt, ap); va_end(ap); +#ifdef KTR + sched_clear_tdname(td); +#endif return (0); } va_start(ap, fmt); |