Date: Tue, 9 Jan 2018 21:23:16 +0000 (UTC) From: Scott Long <scottl@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r327741 - head/sys/cam Message-ID: <201801092123.w09LNGV1011539@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: scottl Date: Tue Jan 9 21:23:16 2018 New Revision: 327741 URL: https://svnweb.freebsd.org/changeset/base/327741 Log: Hold a refcount on the periph while running the allocation queue. This will allow sub-transports to release their probe pseudo-device with fewer convoluted restrictions. Obtained from: Netflix Modified: head/sys/cam/cam_xpt.c Modified: head/sys/cam/cam_xpt.c ============================================================================== --- head/sys/cam/cam_xpt.c Tue Jan 9 21:12:53 2018 (r327740) +++ head/sys/cam/cam_xpt.c Tue Jan 9 21:23:16 2018 (r327741) @@ -3383,6 +3383,7 @@ xpt_run_allocq(struct cam_periph *periph, int sleep) cam_periph_assert(periph, MA_OWNED); if (periph->periph_allocating) return; + cam_periph_doacquire(periph); periph->periph_allocating = 1; CAM_DEBUG_PRINT(CAM_DEBUG_XPT, ("xpt_run_allocq(%p)\n", periph)); device = periph->path->device; @@ -3426,6 +3427,7 @@ restart: if (ccb != NULL) xpt_release_ccb(ccb); periph->periph_allocating = 0; + cam_periph_release_locked(periph); } static void
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201801092123.w09LNGV1011539>