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Hook into the shutdown EVENTHANDLER and stop tasting things after we

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get notified to make things settle a bit faster.

Sponsored by:	DARPA & NAI Labs.
This commit is contained in:
Poul-Henning Kamp 2002-09-27 20:23:35 +00:00
parent 903e43fe66
commit ed0ff8e52d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=104054
1 changed files with 16 additions and 0 deletions
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16
sys/geom/geom_event.c
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@ -54,6 +54,7 @@
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/eventhandler.h>
#endif
#include <sys/errno.h>
#include <sys/time.h>
@ -65,6 +66,7 @@ static u_int g_pending_events, g_silence_events;
static void g_do_event(struct g_event *ep);
static TAILQ_HEAD(,g_provider) g_doorstep = TAILQ_HEAD_INITIALIZER(g_doorstep);
static struct mtx g_eventlock;
static int g_shutdown;
void
g_silence(void)
@ -287,9 +289,23 @@ g_post_event(enum g_events ev, struct g_class *mp, struct g_geom *gp, struct g_p
wakeup(&g_wait_event);
}
#ifdef _KERNEL
static void
geom_shutdown(void *foo __unused)
{
g_shutdown = 1;
}
#endif
void
g_event_init()
{
#ifdef _KERNEL
EVENTHANDLER_REGISTER(shutdown_pre_sync, geom_shutdown, NULL,
SHUTDOWN_PRI_FIRST);
#endif
mtx_init(&g_eventlock, "GEOM orphanage", NULL, MTX_DEF);
}