svn commit: r186320 - head/sys/cam
Edward Tomasz Napierala
trasz at FreeBSD.org
Fri Dec 19 14:33:30 UTC 2008
Author: trasz
Date: Fri Dec 19 14:33:29 2008
New Revision: 186320
URL: http://svn.freebsd.org/changeset/base/186320
Log:
Fix cam_sim_free() wakeup condition and add mtx_asserts.
Submitted by: Christoph Mallon
Reviewed by: scottl
Approved by: rwatson (mentor)
Sponsored by: FreeBSD Foundation
Modified:
head/sys/cam/cam_sim.c
Modified: head/sys/cam/cam_sim.c
==============================================================================
--- head/sys/cam/cam_sim.c Fri Dec 19 14:31:40 2008 (r186319)
+++ head/sys/cam/cam_sim.c Fri Dec 19 14:33:29 2008 (r186320)
@@ -123,9 +123,10 @@ void
cam_sim_release(struct cam_sim *sim)
{
KASSERT(sim->refcount >= 1, ("sim->refcount >= 1"));
+ mtx_assert(sim->mtx, MA_OWNED);
sim->refcount--;
- if (sim->refcount <= 1)
+ if (sim->refcount == 0)
wakeup(sim);
}
@@ -133,6 +134,7 @@ void
cam_sim_hold(struct cam_sim *sim)
{
KASSERT(sim->refcount >= 1, ("sim->refcount >= 1"));
+ mtx_assert(sim->mtx, MA_OWNED);
sim->refcount++;
}
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