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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Xiao Yang
f86ce7cc4b
Make sure both "$UDEV_SETTLE_PROG" and "mknodes" can always be run after a dm create or remove operation. Suggested-by: Dave Chinner <david@fromorbit.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
46 lines
1.1 KiB
Plaintext
46 lines
1.1 KiB
Plaintext
##/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2016 Oracle. All Rights Reserved.
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#
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# Routines for creating huge (fake) disks
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_require_dmhugedisk()
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{
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_require_dm_target zero
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_require_dm_target snapshot
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}
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_dmhugedisk_init()
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{
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test -z "$1" && _fatal "must specify sector count to _dmhugedisk_init"
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local dm_backing_dev=$SCRATCH_DEV
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local chunk_size="$2"
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if [ -z "$chunk_size" ]; then
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chunk_size=512
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fi
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_dmsetup_remove huge-test
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_dmsetup_remove huge-test-zero
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local blk_dev_size=$1
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DMHUGEDISK_ZERO='/dev/mapper/huge-test-zero'
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DMHUGEDISK_DEV='/dev/mapper/huge-test'
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DMHUGEDISK_ZERO_TABLE="0 $blk_dev_size zero"
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DMHUGEDISK_DEV_TABLE="0 $blk_dev_size snapshot $DMHUGEDISK_ZERO $SCRATCH_DEV N $chunk_size"
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_dmsetup_create huge-test-zero --table "$DMHUGEDISK_ZERO_TABLE" || \
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_fatal "failed to create dm huge zero device"
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_dmsetup_create huge-test --table "$DMHUGEDISK_DEV_TABLE" || \
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_fatal "failed to create dm huge device"
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}
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_dmhugedisk_cleanup()
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{
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$UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
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_dmsetup_remove huge-test
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_dmsetup_remove huge-test-zero
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}
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