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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:04 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 21:10:03 +0800 |
| commit | 4599d1700f93ad28aa59c8d1dc67e37a87573ca1 (patch) | |
| tree | e7794636e4263565ab66557c0dfc9288c541c013 | |
| parent | ef91f0027bd080444183db35058b29657fab9f2d (diff) | |
| download | xfstests-dev-4599d1700f93ad28aa59c8d1dc67e37a87573ca1.tar.gz | |
generic: add mmap CoW test for mixed&destination extents
Ensuring that copy on write in mmap mode works when the CoW range
originally covers multiple extents, mixed with reflinked, unwritten,
hole, regular and delalloc blocks. (MMAP version of generic/200,199)
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
| -rwxr-xr-x | tests/generic/662 | 67 | ||||
| -rw-r--r-- | tests/generic/662.out | 12 |
2 files changed, 79 insertions, 0 deletions
diff --git a/tests/generic/662 b/tests/generic/662 new file mode 100755 index 0000000000..a09a467f09 --- /dev/null +++ b/tests/generic/662 @@ -0,0 +1,67 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 662 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, mixed with reflinked, unwritten, +# hole, regular and delalloc blocks. +# (MMAP version of generic/200,199) +# - Create a file with the following repeating sequence of blocks: +# 1. reflinked +# 2. unwritten +# 3. hole +# 4. regular block +# 5. delalloc +# - mmap CoW across the halfway mark, starting with the unwritten extent. +# - Check that the files are now different where we say they're different. +# +. ./common/preamble +_begin_fstest auto quick clone punch + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink +_require_scratch_delalloc +_require_xfs_io_command "falloc" +_require_xfs_io_command "fpunch" + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +echo "Create the original files" +blksz=65536 +nr=64 +filesize=$((blksz * nr)) +_weave_reflink_rainbow $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file3.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((filesize / 4)) +cowsz=$((filesize / 2)) +_weave_reflink_rainbow_delalloc $blksz $nr $testdir/file3 >> $seqres.full +# now cow +mmapsz=$((cowoff + cowsz)) +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file3 >> $seqres.full +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file3.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file3.chk | _filter_scratch + +# success, all done +status=0 diff --git a/tests/generic/662.out b/tests/generic/662.out new file mode 100644 index 0000000000..e90a30c144 --- /dev/null +++ b/tests/generic/662.out @@ -0,0 +1,12 @@ +QA output created by 662 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-662/file1 +6366fd359371414186688a0ef6988893 SCRATCH_MNT/test-662/file3 +6366fd359371414186688a0ef6988893 SCRATCH_MNT/test-662/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-662/file1 +26aa3a0749b867ec58363c8539ee5471 SCRATCH_MNT/test-662/file3 +26aa3a0749b867ec58363c8539ee5471 SCRATCH_MNT/test-662/file3.chk |