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reflink: add test support routines to a separate file
Put all the reflink/dedupe-related test support routines in a separate file, then modify the existing reflink tests to use them. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Darrick J. Wong
committed by
Dave Chinner
Dave Chinner
parent
5a7abc0f09
commit
20d7bfad2d
+185
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##/bin/bash
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# Routines for reflinking, deduping, and comparing parts of files.
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#-----------------------------------------------------------------------
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# Copyright (c) 2015 Oracle. All Rights Reserved.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA
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#
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# Contact information: Oracle Corporation, 500 Oracle Parkway,
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# Redwood Shores, CA 94065, USA, or: http://www.oracle.com/
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#-----------------------------------------------------------------------
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# Check that cp has a reflink argument
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_require_cp_reflink()
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{
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cp --help | grep -q reflink || \
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_notrun "This test requires a cp with --reflink support."
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}
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# Given 2 files, verify that they have the same mapping but different
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# inodes - i.e. an undisturbed reflink
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# Silent if so, make noise if not
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_verify_reflink()
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{
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# not a hard link or symlink?
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cmp -s <(stat -c '%i' $1) <(stat -c '%i' $2) \
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&& echo "$1 and $2 are not reflinks: same inode number"
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# same mapping?
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diff -u <($XFS_IO_PROG -c "fiemap" $1 | grep -v $1) \
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<($XFS_IO_PROG -c "fiemap" $2 | grep -v $2) \
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|| echo "$1 and $2 are not reflinks: different extents"
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}
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# New reflink/dedupe helpers
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# this test requires the test fs support reflink...
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_require_test_reflink()
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{
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_require_test
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_require_xfs_io_command "reflink"
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rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2"
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"$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file1" > /dev/null
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"$XFS_IO_PROG" -f -c "reflink $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" > /dev/null
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if [ ! -s "$TEST_DIR/file2" ]; then
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rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2"
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_notrun "Reflink not supported by test filesystem type: $FSTYP"
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fi
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rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2"
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}
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# this test requires the scratch fs support reflink...
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_require_scratch_reflink()
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{
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_require_scratch
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_require_xfs_io_command "reflink"
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_scratch_mkfs > /dev/null
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_scratch_mount
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"$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file1" > /dev/null
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"$XFS_IO_PROG" -f -c "reflink $SCRATCH_MNT/file1 0 0 65536" "$SCRATCH_MNT/file2" > /dev/null
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if [ ! -s "$SCRATCH_MNT/file2" ]; then
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_scratch_unmount
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_notrun "Reflink not supported by scratch filesystem type: $FSTYP"
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fi
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_scratch_unmount
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}
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# this test requires the test fs support dedupe...
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_require_test_dedupe()
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{
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_require_test
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_require_xfs_io_command "dedupe"
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rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2"
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"$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file1" > /dev/null
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"$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file2" > /dev/null
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testio="$("$XFS_IO_PROG" -f -c "dedupe $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" 2>&1)"
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echo $testio | grep -q "Operation not supported" && \
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_notrun "Dedupe not supported by test filesystem type: $FSTYP"
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echo $testio | grep -q "Inappropriate ioctl for device" && \
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_notrun "Dedupe not supported by test filesystem type: $FSTYP"
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rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2"
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}
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# this test requires the scratch fs support dedupe...
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_require_scratch_dedupe()
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{
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_require_scratch
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_require_xfs_io_command "dedupe"
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_scratch_mkfs > /dev/null
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_scratch_mount
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"$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file1" > /dev/null
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"$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file2" > /dev/null
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testio="$("$XFS_IO_PROG" -f -c "dedupe $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" 2>&1)"
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echo $testio | grep -q "Operation not supported" && \
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_notrun "Dedupe not supported by test filesystem type: $FSTYP"
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echo $testio | grep -q "Inappropriate ioctl for device" && \
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_notrun "Dedupe not supported by test filesystem type: $FSTYP"
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_scratch_unmount
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}
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# Prints a range of a file as a hex dump
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_read_range() {
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file="$1"
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offset="$2"
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len="$3"
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xfs_io_args="$4"
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$XFS_IO_PROG $xfs_io_args -f -c "pread -q -v $offset $len" "$file" | cut -d ' ' -f '3-18'
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}
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# Compare ranges of two files
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_compare_range() {
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file1="$1"
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offset1="$2"
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file2="$3"
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offset2="$4"
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len="$5"
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cmp -s <(_read_range "$file1" "$offset1" "$len") \
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<(_read_range "$file2" "$offset2" "$len")
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}
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# Prints the md5 checksum of a hexdump of a part of a given file
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_md5_range_checksum() {
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file="$1"
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offset="$2"
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len="$3"
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md5sum <(_read_range "$file" "$offset" "$len") | cut -d ' ' -f 1
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}
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# Reflink some file1 into file2 via cp
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_cp_reflink() {
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file1="$1"
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file2="$2"
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cp --reflink=always "$file1" "$file2"
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}
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# Reflink some file1 into file2
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_reflink() {
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file1="$1"
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file2="$2"
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"$XFS_IO_PROG" -f -c "reflink $file1" "$file2"
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}
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# Reflink some part of file1 into another part of file2
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_reflink_range() {
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file1="$1"
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offset1="$2"
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file2="$3"
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offset2="$4"
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len="$5"
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xfs_io_args="$6"
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"$XFS_IO_PROG" $xfs_io_args -f -c "reflink $file1 $offset1 $offset2 $len" "$file2"
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}
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# Dedupe some part of file1 into another part of file2
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_dedupe_range() {
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file1="$1"
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offset1="$2"
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file2="$3"
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offset2="$4"
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len="$5"
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xfs_io_args="$6"
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"$XFS_IO_PROG" $xfs_io_args -f -c "dedupe $file1 $offset1 $offset2 $len" "$file2"
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}
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