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| /freebsd-11.0-release/sys/cam/ | ||
| H A D | cam_sim.h | diff 186185 Tue Dec 16 17:08:45 MST 2008 trasz 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 |
| H A D | cam_sim.c | diff 186185 Tue Dec 16 17:08:45 MST 2008 trasz 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 |
| H A D | cam_xpt.c | diff 186185 Tue Dec 16 17:08:45 MST 2008 trasz 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 |
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