1 files changed, 0 insertions, 363 deletions
diff --git a/sys/contrib/opensolaris/uts/common/fs/zfs/vdev_disk.c b/sys/contrib/opensolaris/uts/common/fs/zfs/vdev_disk.c
deleted file mode 100644
index b965b1c..0000000
--- a/sys/contrib/opensolaris/uts/common/fs/zfs/vdev_disk.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
-#include <sys/zfs_context.h>
-#include <sys/spa.h>
-#include <sys/vdev_disk.h>
-#include <sys/vdev_impl.h>
-#include <sys/fs/zfs.h>
-#include <sys/zio.h>
-#include <sys/sunldi.h>
-
-/*
- * Virtual device vector for disks.
- */
-
-extern ldi_ident_t zfs_li;
-
-typedef struct vdev_disk_buf {
-	buf_t	vdb_buf;
-	zio_t	*vdb_io;
-} vdev_disk_buf_t;
-
-static int
-vdev_disk_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift)
-{
-	vdev_disk_t *dvd;
-	struct dk_minfo dkm;
-	int error;
-
-	/*
-	 * We must have a pathname, and it must be absolute.
-	 */
-	if (vd->vdev_path == NULL || vd->vdev_path[0] != '/') {
-		vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL;
-		return (EINVAL);
-	}
-
-	dvd = vd->vdev_tsd = kmem_zalloc(sizeof (vdev_disk_t), KM_SLEEP);
-
-	/*
-	 * When opening a disk device, we want to preserve the user's original
-	 * intent.  We always want to open the device by the path the user gave
-	 * us, even if it is one of multiple paths to the save device.  But we
-	 * also want to be able to survive disks being removed/recabled.
-	 * Therefore the sequence of opening devices is:
-	 *
-	 * 1. Try opening the device by path.  For legacy pools without the
-	 *    'whole_disk' property, attempt to fix the path by appending 's0'.
-	 *
-	 * 2. If the devid of the device matches the stored value, return
-	 *    success.
-	 *
-	 * 3. Otherwise, the device may have moved.  Try opening the device
-	 *    by the devid instead.
-	 *
-	 */
-	if (vd->vdev_devid != NULL) {
-		if (ddi_devid_str_decode(vd->vdev_devid, &dvd->vd_devid,
-		    &dvd->vd_minor) != 0) {
-			vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL;
-			return (EINVAL);
-		}
-	}
-
-	error = EINVAL;		/* presume failure */
-
-	if (vd->vdev_path != NULL) {
-		ddi_devid_t devid;
-
-		if (vd->vdev_wholedisk == -1ULL) {
-			size_t len = strlen(vd->vdev_path) + 3;
-			char *buf = kmem_alloc(len, KM_SLEEP);
-			ldi_handle_t lh;
-
-			(void) snprintf(buf, len, "%ss0", vd->vdev_path);
-
-			if (ldi_open_by_name(buf, spa_mode, kcred,
-			    &lh, zfs_li) == 0) {
-				spa_strfree(vd->vdev_path);
-				vd->vdev_path = buf;
-				vd->vdev_wholedisk = 1ULL;
-				(void) ldi_close(lh, spa_mode, kcred);
-			} else {
-				kmem_free(buf, len);
-			}
-		}
-
-		error = ldi_open_by_name(vd->vdev_path, spa_mode, kcred,
-		    &dvd->vd_lh, zfs_li);
-
-		/*
-		 * Compare the devid to the stored value.
-		 */
-		if (error == 0 && vd->vdev_devid != NULL &&
-		    ldi_get_devid(dvd->vd_lh, &devid) == 0) {
-			if (ddi_devid_compare(devid, dvd->vd_devid) != 0) {
-				error = EINVAL;
-				(void) ldi_close(dvd->vd_lh, spa_mode, kcred);
-				dvd->vd_lh = NULL;
-			}
-			ddi_devid_free(devid);
-		}
-
-		/*
-		 * If we succeeded in opening the device, but 'vdev_wholedisk'
-		 * is not yet set, then this must be a slice.
-		 */
-		if (error == 0 && vd->vdev_wholedisk == -1ULL)
-			vd->vdev_wholedisk = 0;
-	}
-
-	/*
-	 * If we were unable to open by path, or the devid check fails, open by
-	 * devid instead.
-	 */
-	if (error != 0 && vd->vdev_devid != NULL)
-		error = ldi_open_by_devid(dvd->vd_devid, dvd->vd_minor,
-		    spa_mode, kcred, &dvd->vd_lh, zfs_li);
-
-	if (error) {
-		vd->vdev_stat.vs_aux = VDEV_AUX_OPEN_FAILED;
-		return (error);
-	}
-
-	/*
-	 * Determine the actual size of the device.
-	 */
-	if (ldi_get_size(dvd->vd_lh, psize) != 0) {
-		vd->vdev_stat.vs_aux = VDEV_AUX_OPEN_FAILED;
-		return (EINVAL);
-	}
-
-	/*
-	 * If we own the whole disk, try to enable disk write caching.
-	 * We ignore errors because it's OK if we can't do it.
-	 */
-	if (vd->vdev_wholedisk == 1) {
-		int wce = 1;
-		(void) ldi_ioctl(dvd->vd_lh, DKIOCSETWCE, (intptr_t)&wce,
-		    FKIOCTL, kcred, NULL);
-	}
-
-	/*
-	 * Determine the device's minimum transfer size.
-	 * If the ioctl isn't supported, assume DEV_BSIZE.
-	 */
-	if (ldi_ioctl(dvd->vd_lh, DKIOCGMEDIAINFO, (intptr_t)&dkm,
-	    FKIOCTL, kcred, NULL) != 0)
-		dkm.dki_lbsize = DEV_BSIZE;
-
-	*ashift = highbit(MAX(dkm.dki_lbsize, SPA_MINBLOCKSIZE)) - 1;
-
-	/*
-	 * Clear the nowritecache bit, so that on a vdev_reopen() we will
-	 * try again.
-	 */
-	vd->vdev_nowritecache = B_FALSE;
-
-	return (0);
-}
-
-static void
-vdev_disk_close(vdev_t *vd)
-{
-	vdev_disk_t *dvd = vd->vdev_tsd;
-
-	if (dvd == NULL)
-		return;
-
-	dprintf("removing disk %s, devid %s\n",
-	    vd->vdev_path ? vd->vdev_path : "<none>",
-	    vd->vdev_devid ? vd->vdev_devid : "<none>");
-
-	if (dvd->vd_minor != NULL)
-		ddi_devid_str_free(dvd->vd_minor);
-
-	if (dvd->vd_devid != NULL)
-		ddi_devid_free(dvd->vd_devid);
-
-	if (dvd->vd_lh != NULL)
-		(void) ldi_close(dvd->vd_lh, spa_mode, kcred);
-
-	kmem_free(dvd, sizeof (vdev_disk_t));
-	vd->vdev_tsd = NULL;
-}
-
-static void
-vdev_disk_io_intr(buf_t *bp)
-{
-	vdev_disk_buf_t *vdb = (vdev_disk_buf_t *)bp;
-	zio_t *zio = vdb->vdb_io;
-
-	if ((zio->io_error = geterror(bp)) == 0 && bp->b_resid != 0)
-		zio->io_error = EIO;
-
-	kmem_free(vdb, sizeof (vdev_disk_buf_t));
-
-	zio_next_stage_async(zio);
-}
-
-static void
-vdev_disk_ioctl_done(void *zio_arg, int error)
-{
-	zio_t *zio = zio_arg;
-
-	zio->io_error = error;
-
-	zio_next_stage_async(zio);
-}
-
-static void
-vdev_disk_io_start(zio_t *zio)
-{
-	vdev_t *vd = zio->io_vd;
-	vdev_disk_t *dvd = vd->vdev_tsd;
-	vdev_disk_buf_t *vdb;
-	buf_t *bp;
-	int flags, error;
-
-	if (zio->io_type == ZIO_TYPE_IOCTL) {
-		zio_vdev_io_bypass(zio);
-
-		/* XXPOLICY */
-		if (vdev_is_dead(vd)) {
-			zio->io_error = ENXIO;
-			zio_next_stage_async(zio);
-			return;
-		}
-
-		switch (zio->io_cmd) {
-
-		case DKIOCFLUSHWRITECACHE:
-
-			if (zfs_nocacheflush)
-				break;
-
-			if (vd->vdev_nowritecache) {
-				zio->io_error = ENOTSUP;
-				break;
-			}
-
-			zio->io_dk_callback.dkc_callback = vdev_disk_ioctl_done;
-			zio->io_dk_callback.dkc_cookie = zio;
-
-			error = ldi_ioctl(dvd->vd_lh, zio->io_cmd,
-			    (uintptr_t)&zio->io_dk_callback,
-			    FKIOCTL, kcred, NULL);
-
-			if (error == 0) {
-				/*
-				 * The ioctl will be done asychronously,
-				 * and will call vdev_disk_ioctl_done()
-				 * upon completion.
-				 */
-				return;
-			} else if (error == ENOTSUP) {
-				/*
-				 * If we get ENOTSUP, we know that no future
-				 * attempts will ever succeed.  In this case we
-				 * set a persistent bit so that we don't bother
-				 * with the ioctl in the future.
-				 */
-				vd->vdev_nowritecache = B_TRUE;
-			}
-			zio->io_error = error;
-
-			break;
-
-		default:
-			zio->io_error = ENOTSUP;
-		}
-
-		zio_next_stage_async(zio);
-		return;
-	}
-
-	if (zio->io_type == ZIO_TYPE_READ && vdev_cache_read(zio) == 0)
-		return;
-
-	if ((zio = vdev_queue_io(zio)) == NULL)
-		return;
-
-	flags = (zio->io_type == ZIO_TYPE_READ ? B_READ : B_WRITE);
-	flags |= B_BUSY | B_NOCACHE;
-	if (zio->io_flags & ZIO_FLAG_FAILFAST)
-		flags |= B_FAILFAST;
-
-	vdb = kmem_alloc(sizeof (vdev_disk_buf_t), KM_SLEEP);
-
-	vdb->vdb_io = zio;
-	bp = &vdb->vdb_buf;
-
-	bioinit(bp);
-	bp->b_flags = flags;
-	bp->b_bcount = zio->io_size;
-	bp->b_un.b_addr = zio->io_data;
-	bp->b_lblkno = lbtodb(zio->io_offset);
-	bp->b_bufsize = zio->io_size;
-	bp->b_iodone = (int (*)())vdev_disk_io_intr;
-
-	/* XXPOLICY */
-	error = vdev_is_dead(vd) ? ENXIO : vdev_error_inject(vd, zio);
-	if (error) {
-		zio->io_error = error;
-		bioerror(bp, error);
-		bp->b_resid = bp->b_bcount;
-		bp->b_iodone(bp);
-		return;
-	}
-
-	error = ldi_strategy(dvd->vd_lh, bp);
-	/* ldi_strategy() will return non-zero only on programming errors */
-	ASSERT(error == 0);
-}
-
-static void
-vdev_disk_io_done(zio_t *zio)
-{
-	vdev_queue_io_done(zio);
-
-	if (zio->io_type == ZIO_TYPE_WRITE)
-		vdev_cache_write(zio);
-
-	if (zio_injection_enabled && zio->io_error == 0)
-		zio->io_error = zio_handle_device_injection(zio->io_vd, EIO);
-
-	zio_next_stage(zio);
-}
-
-vdev_ops_t vdev_disk_ops = {
-	vdev_disk_open,
-	vdev_disk_close,
-	vdev_default_asize,
-	vdev_disk_io_start,
-	vdev_disk_io_done,
-	NULL,
-	VDEV_TYPE_DISK,		/* name of this vdev type */
-	B_TRUE			/* leaf vdev */
-};