Date: Tue, 11 Apr 2017 17:15:40 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r316709 - stable/11/sys/geom/mirror Message-ID: <201704111715.v3BHFeHq049181@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: markj Date: Tue Apr 11 17:15:39 2017 New Revision: 316709 URL: https://svnweb.freebsd.org/changeset/base/316709 Log: MFC r316175: Avoid sleeping when the mirror I/O queue is non-empty. Modified: stable/11/sys/geom/mirror/g_mirror.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/geom/mirror/g_mirror.c ============================================================================== --- stable/11/sys/geom/mirror/g_mirror.c Tue Apr 11 17:13:56 2017 (r316708) +++ stable/11/sys/geom/mirror/g_mirror.c Tue Apr 11 17:15:39 2017 (r316709) @@ -1894,6 +1894,10 @@ g_mirror_worker(void *arg) kproc_exit(0); } mtx_lock(&sc->sc_queue_mtx); + if (bioq_first(&sc->sc_queue) != NULL) { + mtx_unlock(&sc->sc_queue_mtx); + continue; + } } sx_xunlock(&sc->sc_lock); /*
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201704111715.v3BHFeHq049181>