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author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:03 +0800 |
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committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 21:08:50 +0800 |
commit | ef91f0027bd080444183db35058b29657fab9f2d (patch) | |
tree | a78aa6d0aca578cb5b5211c9ab870cdb891877aa | |
parent | ac3fcc16d29886663e11da04533cb49d764b5b24 (diff) | |
download | xfstests-dev-ef91f0027bd080444183db35058b29657fab9f2d.tar.gz |
generic: add mmap CoW test for delalloc&destination extents
Ensuring that copy on write in mmap mode works when the CoW range
originally covers multiple extents, some delalloc, some not. (MMAP
version of generic/195,194)
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/661 | 62 | ||||
-rw-r--r-- | tests/generic/661.out | 12 |
2 files changed, 74 insertions, 0 deletions
diff --git a/tests/generic/661 b/tests/generic/661 new file mode 100755 index 0000000000..295a6a8d7e --- /dev/null +++ b/tests/generic/661 @@ -0,0 +1,62 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 661 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some delalloc, some not. +# (MMAP version of generic/195,194) +# - Create a file. +# - Reflink the odd blocks of the first file into the second file. +# - Buffered write the even blocks of the second file. +# - 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 + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink +_require_scratch_delalloc +_require_xfs_io_command "falloc" + +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_holes $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_holes_delalloc $blksz $nr $testdir/file3 >> $seqres.full +mmapsz=$((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 +exit diff --git a/tests/generic/661.out b/tests/generic/661.out new file mode 100644 index 0000000000..84a1c679ea --- /dev/null +++ b/tests/generic/661.out @@ -0,0 +1,12 @@ +QA output created by 661 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-661/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-661/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-661/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-661/file1 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-661/file3 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-661/file3.chk |