Date: Tue, 8 Sep 2009 05:46:38 +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: r196964 - head/sys/geom Message-ID: <200909080546.n885kcHx037457@svn.freebsd.org>
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Author: mav Date: Tue Sep 8 05:46:38 2009 New Revision: 196964 URL: http://svn.freebsd.org/changeset/base/196964 Log: Do not check proper request alignment here in geom_dev in production. It will be checked any way later by g_io_check() in g_io_schedule_down(). It is only needed here to not trigger panic from additional check, when INVARIANTS enabled. So cover it with #ifdef INVARIANTS. It saves two 64bit divisions per request. Modified: head/sys/geom/geom_dev.c Modified: head/sys/geom/geom_dev.c ============================================================================== --- head/sys/geom/geom_dev.c Tue Sep 8 05:24:09 2009 (r196963) +++ head/sys/geom/geom_dev.c Tue Sep 8 05:46:38 2009 (r196964) @@ -371,14 +371,14 @@ g_dev_strategy(struct bio *bp) cp = dev->si_drv2; KASSERT(cp->acr || cp->acw, ("Consumer with zero access count in g_dev_strategy")); - +#ifdef INVARIANTS if ((bp->bio_offset % cp->provider->sectorsize) != 0 || (bp->bio_bcount % cp->provider->sectorsize) != 0) { bp->bio_resid = bp->bio_bcount; biofinish(bp, NULL, EINVAL); return; } - +#endif for (;;) { /* * XXX: This is not an ideal solution, but I belive it to
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