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btrfs/094: work on non-4k block sized filesystems

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This commit makes use of the new _filter_xfs_io_blocks_modified filtering
function to print information in terms of file blocks rather than file
offset.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Chandan Rajendra
2015-12-21 18:01:46 +11:00
committed by Dave Chinner
parent fec16b908b
commit 0b21062a72
2 changed files with 98 additions and 44 deletions
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tests/btrfs/094
+41 -30
View File
@@ -67,36 +67,41 @@ mkdir $send_files_dir
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount "-o compress"
# Create the file with a single extent of 128K. This creates a metadata file
# extent item with a data start offset of 0 and a logical length of 128K.
$XFS_IO_PROG -f -c "pwrite -S 0xaa 64K 128K" -c "fsync" \
$SCRATCH_MNT/foo | _filter_xfs_io
BLOCK_SIZE=$(get_block_size $SCRATCH_MNT)
# Now rewrite the range 64K to 112K of our file. This will make the inode's
# metadata continue to point to the 128K extent we created before, but now
# with an extent item that points to the extent with a data start offset of
# 112K and a logical length of 16K.
# That metadata file extent item is associated with the logical file offset
# at 176K and covers the logical file range 176K to 192K.
$XFS_IO_PROG -c "pwrite -S 0xbb 64K 112K" -c "fsync" \
$SCRATCH_MNT/foo | _filter_xfs_io
# Create the file with a single extent of 32 blocks. This creates a metadata
# file extent item with a data start offset of 0 and a logical length of
# 32 blocks.
$XFS_IO_PROG -f -c "pwrite -S 0xaa $((16 * $BLOCK_SIZE)) $((32 * $BLOCK_SIZE))" \
-c "fsync" $SCRATCH_MNT/foo | _filter_xfs_io_blocks_modified
# Now rewrite the range 180K to 12K. This will make the inode's metadata
# continue to point the the 128K extent we created earlier, with a single
# extent item that points to it with a start offset of 112K and a logical
# length of 4K.
# That metadata file extent item is associated with the logical file offset
# at 176K and covers the logical file range 176K to 180K.
$XFS_IO_PROG -c "pwrite -S 0xcc 180K 12K" -c "fsync" \
$SCRATCH_MNT/foo | _filter_xfs_io
# Now rewrite the block range [16, 28[ of our file. This will make
# the inode's metadata continue to point to the single 32 block extent
# we created before, but now with an extent item that points to the
# extent with a data start offset referring to the 28th block and a
# logical length of 4 blocks.
# That metadata file extent item is associated with the block range
# [44, 48[.
$XFS_IO_PROG -c "pwrite -S 0xbb $((16 * $BLOCK_SIZE)) $((28 * $BLOCK_SIZE))" \
-c "fsync" $SCRATCH_MNT/foo | _filter_xfs_io_blocks_modified
# Now rewrite the block range [45, 48[. This will make the inode's
# metadata continue to point the 32 block extent we created earlier,
# with a single extent item that points to it with a start offset
# referring to the 28th block and a logical length of 1 block.
# That metadata file extent item is associated with the block range
# [44, 45[.
$XFS_IO_PROG -c "pwrite -S 0xcc $((45 * $BLOCK_SIZE)) $((3 * $BLOCK_SIZE))" \
-c "fsync" $SCRATCH_MNT/foo | _filter_xfs_io_blocks_modified
_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
# Now clone that same region of the 128K extent into a new file, so that it
# Now clone that same region of the 32 block extent into a new file, so that it
# gets referenced twice and the incremental send operation below decides to
# issue a clone operation instead of copying the data.
touch $SCRATCH_MNT/bar
$CLONER_PROG -s $((176 * 1024)) -d $((176 * 1024)) -l $((4 * 1024)) \
$CLONER_PROG -s $((44 * $BLOCK_SIZE)) -d $((44 * $BLOCK_SIZE)) -l $BLOCK_SIZE \
$SCRATCH_MNT/foo $SCRATCH_MNT/bar
_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
@@ -105,10 +110,13 @@ _run_btrfs_util_prog send $SCRATCH_MNT/mysnap1 -f $send_files_dir/1.snap
_run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 $SCRATCH_MNT/mysnap2 \
-f $send_files_dir/2.snap
echo "File digests in the original filesystem:"
md5sum $SCRATCH_MNT/mysnap1/foo | _filter_scratch
md5sum $SCRATCH_MNT/mysnap2/foo | _filter_scratch
md5sum $SCRATCH_MNT/mysnap2/bar | _filter_scratch
echo "File contents in the original filesystem:"
echo "mysnap1/foo"
od -t x1 $SCRATCH_MNT/mysnap1/foo | _filter_od
echo "mysnap2/foo"
od -t x1 $SCRATCH_MNT/mysnap2/foo | _filter_od
echo "mysnap2/bar"
od -t x1 $SCRATCH_MNT/mysnap2/bar | _filter_od
# Now recreate the filesystem by receiving both send streams and verify we get
# the same file contents that the original filesystem had.
@@ -119,10 +127,13 @@ _scratch_mount
_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/1.snap
_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/2.snap
echo "File digests in the new filesystem:"
md5sum $SCRATCH_MNT/mysnap1/foo | _filter_scratch
md5sum $SCRATCH_MNT/mysnap2/foo | _filter_scratch
md5sum $SCRATCH_MNT/mysnap2/bar | _filter_scratch
echo "File contents in the new filesystem:"
echo "mysnap1/foo"
od -t x1 $SCRATCH_MNT/mysnap1/foo | _filter_od
echo "mysnap2/foo"
od -t x1 $SCRATCH_MNT/mysnap2/foo | _filter_od
echo "mysnap2/bar"
od -t x1 $SCRATCH_MNT/mysnap2/bar | _filter_od
status=0
exit
tests/btrfs/094.out
+57 -14
View File
@@ -1,15 +1,58 @@
QA output created by 094
wrote 131072/131072 bytes at offset 65536
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 114688/114688 bytes at offset 65536
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 12288/12288 bytes at offset 184320
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
File digests in the original filesystem:
f98243c603750f7daf225b1745b31516 SCRATCH_MNT/mysnap1/foo
f98243c603750f7daf225b1745b31516 SCRATCH_MNT/mysnap2/foo
7fccf6175f5c68504b408719a21db99f SCRATCH_MNT/mysnap2/bar
File digests in the new filesystem:
f98243c603750f7daf225b1745b31516 SCRATCH_MNT/mysnap1/foo
f98243c603750f7daf225b1745b31516 SCRATCH_MNT/mysnap2/foo
7fccf6175f5c68504b408719a21db99f SCRATCH_MNT/mysnap2/bar
Blocks modified: [16 - 47]
Blocks modified: [16 - 43]
Blocks modified: [45 - 47]
File contents in the original filesystem:
mysnap1/foo
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
20 bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb
*
54 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
55 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
*
60
mysnap2/foo
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
20 bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb
*
54 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
55 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
*
60
mysnap2/bar
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
54 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
55
File contents in the new filesystem:
mysnap1/foo
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
20 bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb
*
54 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
55 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
*
60
mysnap2/foo
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
20 bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb
*
54 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
55 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
*
60
mysnap2/bar
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
54 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
55