Date: Wed, 27 Mar 2013 18:55:01 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r248800 - head/sys/cam Message-ID: <201303271855.r2RIt1rl017064@svn.freebsd.org>
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Author: mav Date: Wed Mar 27 18:55:01 2013 New Revision: 248800 URL: http://svnweb.freebsd.org/changeset/base/248800 Log: On SIM destruction free associated CCBs, preallocated inside xpt_get_ccb(). Before this change they were just leaked. Fortunately USB sticks now use only one CCB, and so leak was only 2KB per detach, while other bigger SIMs with much more allocated CCBs are rarely detached. MFC after: 2 weeks Modified: head/sys/cam/cam_sim.c Modified: head/sys/cam/cam_sim.c ============================================================================== --- head/sys/cam/cam_sim.c Wed Mar 27 18:06:28 2013 (r248799) +++ head/sys/cam/cam_sim.c Wed Mar 27 18:55:01 2013 (r248800) @@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$"); #include <cam/cam_ccb.h> #include <cam/cam_sim.h> #include <cam/cam_queue.h> +#include <cam/cam_xpt.h> #define CAM_PATH_ANY (u_int32_t)-1 @@ -105,6 +106,7 @@ cam_sim_alloc(sim_action_func sim_action void cam_sim_free(struct cam_sim *sim, int free_devq) { + union ccb *ccb; int error; sim->refcount--; @@ -115,6 +117,10 @@ cam_sim_free(struct cam_sim *sim, int fr KASSERT(sim->refcount == 0, ("sim->refcount == 0")); + while ((ccb = (union ccb *)SLIST_FIRST(&sim->ccb_freeq)) != NULL) { + SLIST_REMOVE_HEAD(&sim->ccb_freeq, xpt_links.sle); + xpt_free_ccb(ccb); + } if (free_devq) cam_simq_free(sim->devq); free(sim, M_CAMSIM);
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