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- Add the proper lock profiling calls to _thread_lock().

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Obtained from:	kipmacy
Approved by:	re
This commit is contained in:
Jeff Roberson 2007-07-18 20:38:13 +00:00
parent 2125ff0886
commit 773890b9a8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=171487
1 changed files with 8 additions and 2 deletions
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10
sys/kern/kern_mutex.c
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@ -473,9 +473,12 @@ _thread_lock_flags(struct thread *td, int opts, const char *file, int line)
{
struct mtx *m;
uintptr_t tid;
int i;
int i, contested;
uint64_t waittime;
i = 0;
contested = i = 0;
waittime = 0;
tid = (uintptr_t)curthread;
for (;;) {
retry:
@ -488,6 +491,7 @@ _thread_lock_flags(struct thread *td, int opts, const char *file, int line)
m->mtx_recurse++;
break;
}
lock_profile_obtain_lock_failed(&m->lock_object, &contested, &waittime);
/* Give interrupts a chance while we spin. */
spinlock_exit();
while (m->mtx_lock != MTX_UNOWNED) {
@ -508,6 +512,8 @@ _thread_lock_flags(struct thread *td, int opts, const char *file, int line)
break;
_rel_spin_lock(m); /* does spinlock_exit() */
}
lock_profile_obtain_lock_success(&m->lock_object, contested,
waittime, (file), (line));
WITNESS_LOCK(&m->lock_object, opts | LOP_EXCLUSIVE, file, line);
}