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Instrument thread creations for the the benefit of the TSLOG framework.

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This assists in tracking time spent while the boot is being "held" waiting
for something to happen.
This commit is contained in:
Colin Percival 2017-12-31 09:24:11 +00:00
parent 8b8a7c43a9
commit 49a4e3b4b4
1 changed files with 4 additions and 0 deletions
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4
sys/kern/kern_kthread.c
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@ -44,6 +44,7 @@ __FBSDID("$FreeBSD$");
#include <sys/unistd.h> #include <sys/unistd.h>
#include <sys/wait.h> #include <sys/wait.h>
#include <sys/sched.h> #include <sys/sched.h>
#include <sys/tslog.h>
#include <vm/vm.h> #include <vm/vm.h>
#include <vm/vm_extern.h> #include <vm/vm_extern.h>
@ -124,6 +125,7 @@ kproc_create(void (*func)(void *), void *arg,
#ifdef KTR #ifdef KTR
sched_clear_tdname(td); sched_clear_tdname(td);
#endif #endif
TSTHREAD(td, td->td_name);
/* call the processes' main()... */ /* call the processes' main()... */
cpu_fork_kthread_handler(td, func, arg); cpu_fork_kthread_handler(td, func, arg);
@ -283,6 +285,8 @@ kthread_add(void (*func)(void *), void *arg, struct proc *p,
vsnprintf(newtd->td_name, sizeof(newtd->td_name), fmt, ap); vsnprintf(newtd->td_name, sizeof(newtd->td_name), fmt, ap);
va_end(ap); va_end(ap);
TSTHREAD(newtd, newtd->td_name);
newtd->td_proc = p; /* needed for cpu_copy_thread */ newtd->td_proc = p; /* needed for cpu_copy_thread */
/* might be further optimized for kthread */ /* might be further optimized for kthread */
cpu_copy_thread(newtd, oldtd); cpu_copy_thread(newtd, oldtd);