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| author | davidxu <davidxu@FreeBSD.org> | 2003-05-01 07:29:25 +0000 |
|---|---|---|
| committer | davidxu <davidxu@FreeBSD.org> | 2003-05-01 07:29:25 +0000 |
| commit | a8c00fe70be62dae87b846d525773f88b53a65df (patch) | |
| tree | 83c6ea1aec4bf55bf940670077947c4b00afe7a2 /sys/kern/kern_thread.c | |
| parent | 2d8975b7db20106811c815c09eb7ef33fe3f68fa (diff) | |
| download | FreeBSD-src-a8c00fe70be62dae87b846d525773f88b53a65df.zip FreeBSD-src-a8c00fe70be62dae87b846d525773f88b53a65df.tar.gz | |
Drop Giant lock before suspended, pick up it after resumed.
thread_suspend_check() is used in exit1() which still needs
Giant lock.
Diffstat (limited to 'sys/kern/kern_thread.c')
| -rw-r--r-- | sys/kern/kern_thread.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/kern/kern_thread.c b/sys/kern/kern_thread.c index 4a3e92e..b2e842b 100644 --- a/sys/kern/kern_thread.c +++ b/sys/kern/kern_thread.c @@ -1165,6 +1165,9 @@ thread_exit(void) td->td_standin = NULL; } + if (p->p_tracee == td) + p->p_tracee = 0; + cpu_thread_exit(td); /* XXXSMP */ /* @@ -1945,7 +1948,6 @@ thread_suspend_check(int return_instead) thr_exit1(); } - mtx_assert(&Giant, MA_NOTOWNED); /* * When a thread suspends, it just * moves to the processes's suspend queue @@ -1957,10 +1959,12 @@ thread_suspend_check(int return_instead) thread_unsuspend_one(p->p_singlethread); } } + DROP_GIANT(); PROC_UNLOCK(p); p->p_stats->p_ru.ru_nivcsw++; mi_switch(); mtx_unlock_spin(&sched_lock); + PICKUP_GIANT(); PROC_LOCK(p); } return (0); |
