Date: Sat, 18 Jan 2014 18:39:39 +0000 (UTC) From: Bryan Venteicher <bryanv@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r260857 - stable/10/sys/dev/virtio/block Message-ID: <201401181839.s0IIddmR083188@svn.freebsd.org>
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Author: bryanv Date: Sat Jan 18 18:39:39 2014 New Revision: 260857 URL: http://svnweb.freebsd.org/changeset/base/260857 Log: MFC r260582: Add unmapped IO support to virtio_blk(4) Modified: stable/10/sys/dev/virtio/block/virtio_blk.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/virtio/block/virtio_blk.c ============================================================================== --- stable/10/sys/dev/virtio/block/virtio_blk.c Sat Jan 18 18:36:41 2014 (r260856) +++ stable/10/sys/dev/virtio/block/virtio_blk.c Sat Jan 18 18:39:39 2014 (r260857) @@ -726,7 +726,7 @@ vtblk_alloc_disk(struct vtblk_softc *sc, dp->d_name = VTBLK_DISK_NAME; dp->d_unit = device_get_unit(dev); dp->d_drv1 = sc; - dp->d_flags = DISKFLAG_CANFLUSHCACHE; + dp->d_flags = DISKFLAG_CANFLUSHCACHE | DISKFLAG_UNMAPPED_BIO; dp->d_hba_vendor = virtio_get_vendor(dev); dp->d_hba_device = virtio_get_device(dev); dp->d_hba_subvendor = virtio_get_subvendor(dev); @@ -931,10 +931,11 @@ vtblk_execute_request(struct vtblk_softc sglist_append(sg, &req->vbr_hdr, sizeof(struct virtio_blk_outhdr)); if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { - error = sglist_append(sg, bp->bio_data, bp->bio_bcount); - if (error || sg->sg_nseg == sg->sg_maxseg) + error = sglist_append_bio(sg, bp); + if (error || sg->sg_nseg == sg->sg_maxseg) { panic("%s: data buffer too big bio:%p error:%d", __func__, bp, error); + } /* BIO_READ means the host writes into our buffer. */ if (bp->bio_cmd == BIO_READ)
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