75 lines
2 KiB
C
75 lines
2 KiB
C
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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#include <sys/zfs_context.h>
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#include <sys/spa.h>
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#include <sys/spa_impl.h>
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#include <sys/dmu.h>
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#include <sys/zap.h>
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#include <sys/vdev.h>
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#include <sys/vdev_os.h>
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#include <sys/vdev_impl.h>
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#include <sys/uberblock_impl.h>
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#include <sys/metaslab.h>
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#include <sys/metaslab_impl.h>
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#include <sys/zio.h>
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#include <sys/dsl_scan.h>
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#include <sys/abd.h>
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#include <sys/fs/zfs.h>
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int
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vdev_label_write_pad2(vdev_t *vd, const char *buf, size_t size)
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{
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spa_t *spa = vd->vdev_spa;
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zio_t *zio;
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abd_t *pad2;
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int flags = ZIO_FLAG_CONFIG_WRITER | ZIO_FLAG_CANFAIL;
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int error;
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if (size > VDEV_PAD_SIZE)
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return (EINVAL);
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if (!vd->vdev_ops->vdev_op_leaf)
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return (ENODEV);
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if (vdev_is_dead(vd))
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return (ENXIO);
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ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL);
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pad2 = abd_alloc_for_io(VDEV_PAD_SIZE, B_TRUE);
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abd_zero(pad2, VDEV_PAD_SIZE);
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abd_copy_from_buf(pad2, buf, size);
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retry:
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zio = zio_root(spa, NULL, NULL, flags);
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vdev_label_write(zio, vd, 0, pad2,
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offsetof(vdev_label_t, vl_be),
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VDEV_PAD_SIZE, NULL, NULL, flags);
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error = zio_wait(zio);
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if (error != 0 && !(flags & ZIO_FLAG_TRYHARD)) {
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flags |= ZIO_FLAG_TRYHARD;
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goto retry;
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}
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abd_free(pad2);
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return (error);
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}
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