#!/bin/sh
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# Check decoding of btrfs ioctl w/ live ioctls.
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# WARNING: USE OF THIS TEST WILL MODIFY AN EXISTING BTRFS FILE SYSTEM
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# Typical usage:
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# mkfs.btrfs <dev>
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# mount <dev> /mnt
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# BTRFS_MOUNTPOINT=/mnt make check TESTS="btrfs-w"
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# umount /mnt
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. "${srcdir=.}/init.sh"
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if [ -z "${BTRFS_MOUNTPOINT}" ]; then
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skip_ "\$BTRFS_MOUNTPOINT not set"
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elif [ ! -d "${BTRFS_MOUNTPOINT}" ]; then
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skip_ "\$BTRFS_MOUNTPOINT does not point to a directory"
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fi
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check_prog grep
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run_prog ../btrfs -w "${BTRFS_MOUNTPOINT}" > /dev/null
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run_strace -a16 -eioctl $args > "$EXP"
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grep -v '^ioctl([012],' < "$LOG" > "$OUT"
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match_diff "$OUT" "$EXP"
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