Date: Sat, 28 Feb 2009 10:27:46 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/cam cam_sim.c cam_sim.h cam_xpt.c Message-ID: <200902281028.n1SAS03c064761@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
trasz 2009-02-28 10:27:46 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/cam cam_sim.c cam_sim.h cam_xpt.c
Log:
SVN rev 189145 on 2009-02-28 10:27:46Z by trasz
MFC r186185:
Add SIM refcounting. This is slightly different from what DragonFly
does - in DragonFly, it's cam_sim_release() what actually frees the
SIM; cam_sim_free does nothing more than calling cam_sim_release().
Here, we drain in cam_sim_free, waiting for refcount to drop to zero.
We cannot do the same think DragonFly does, because after cam_sim_free
returns, client would destroy the sim->mtx, and CAM would trip over
an initialized mutex.
Reviewed by: scottl
Approved by: rwatson (mentor)
Sponsored by: FreeBSD Foundation
Revision Changes Path
1.11.2.1 +29 -0 src/sys/cam/cam_sim.c
1.8.2.1 +3 -0 src/sys/cam/cam_sim.h
1.190.2.8 +2 -0 src/sys/cam/cam_xpt.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200902281028.n1SAS03c064761>