Date: Fri, 7 Aug 2015 08:13:35 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r286404 - head/sys/geom Message-ID: <201508070813.t778DZUm010906@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: kib Date: Fri Aug 7 08:13:34 2015 New Revision: 286404 URL: https://svnweb.freebsd.org/changeset/base/286404 Log: The condition to use direct processing for the unmapped bio is reverted. We can do direct processing when g_io_check() does not need to perform transient remapping of the bio, otherwise the thread has to sleep. Reviewed by: mav (previous version) Sponsored by: The FreeBSD Foundation MFC after: 1 week Modified: head/sys/geom/geom_io.c Modified: head/sys/geom/geom_io.c ============================================================================== --- head/sys/geom/geom_io.c Fri Aug 7 07:05:47 2015 (r286403) +++ head/sys/geom/geom_io.c Fri Aug 7 08:13:34 2015 (r286404) @@ -520,8 +520,8 @@ g_io_request(struct bio *bp, struct g_co direct = (cp->flags & G_CF_DIRECT_SEND) && (pp->flags & G_PF_DIRECT_RECEIVE) && !g_is_geom_thread(curthread) && - (((pp->flags & G_PF_ACCEPT_UNMAPPED) == 0 && - (bp->bio_flags & BIO_UNMAPPED) != 0) || THREAD_CAN_SLEEP()); + ((pp->flags & G_PF_ACCEPT_UNMAPPED) != 0 || + (bp->bio_flags & BIO_UNMAPPED) == 0 || THREAD_CAN_SLEEP()); if (direct) { /* Block direct execution if less then half of stack left. */ size_t st, su;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201508070813.t778DZUm010906>