diff options
| author | kib <kib@FreeBSD.org> | 2009-07-14 22:52:46 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2009-07-14 22:52:46 +0000 |
| commit | c7441b67e68fb8dbdec2ca853f77acf72e7cf0e9 (patch) | |
| tree | b51305b6f0c522d37eac747f4cbb29242078546b /sys/kern/kern_thread.c | |
| parent | aa9063dc970560b1ab26b34f292e63ad270cb4c4 (diff) | |
| download | FreeBSD-src-c7441b67e68fb8dbdec2ca853f77acf72e7cf0e9.zip FreeBSD-src-c7441b67e68fb8dbdec2ca853f77acf72e7cf0e9.tar.gz | |
Add new msleep(9) flag PBDY that shall be specified together with
PCATCH, to indicate that thread shall not be stopped upon receipt of
SIGSTOP until it reaches the kernel->usermode boundary.
Also change thread_single(SINGLE_NO_EXIT) to only stop threads at
the user boundary unconditionally.
Tested by: pho
Reviewed by: jhb
Approved by: re (kensmith)
Diffstat (limited to 'sys/kern/kern_thread.c')
| -rw-r--r-- | sys/kern/kern_thread.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/sys/kern/kern_thread.c b/sys/kern/kern_thread.c index f04b2a6..d47bd8c 100644 --- a/sys/kern/kern_thread.c +++ b/sys/kern/kern_thread.c @@ -598,18 +598,17 @@ thread_single(int mode) wakeup_swapper |= sleepq_abort(td2, ERESTART); break; + case SINGLE_NO_EXIT: + if (TD_IS_SUSPENDED(td2) && + !(td2->td_flags & TDF_BOUNDARY)) + wakeup_swapper |= + thread_unsuspend_one(td2); + if (TD_ON_SLEEPQ(td2) && + (td2->td_flags & TDF_SINTR)) + wakeup_swapper |= + sleepq_abort(td2, ERESTART); + break; default: - if (TD_IS_SUSPENDED(td2)) { - thread_unlock(td2); - continue; - } - /* - * maybe other inhibited states too? - */ - if ((td2->td_flags & TDF_SINTR) && - (td2->td_inhibitors & - (TDI_SLEEPING | TDI_SWAPPED))) - thread_suspend_one(td2); break; } } |
