mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
overlay: Test invalidate of readdir cache
This is a regression test for kernel commit 65cd913ec9d9
("ovl: invalidate readdir cache on changes to dir with origin")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Amir Goldstein
committed by
Eryu Guan
Eryu Guan
parent
2fd4a08b93
commit
18d4e9c7bf
Executable
+117
@@ -0,0 +1,117 @@
|
||||
#! /bin/bash
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
# Copyright (C) 2021 CTERA Networks. All Rights Reserved.
|
||||
#
|
||||
# FS QA Test 077
|
||||
#
|
||||
# Test invalidate of readdir cache
|
||||
#
|
||||
# This is a regression test for kernel commit 65cd913ec9d9
|
||||
# ("ovl: invalidate readdir cache on changes to dir with origin")
|
||||
#
|
||||
seq=`basename $0`
|
||||
seqres=$RESULT_DIR/$seq
|
||||
echo "QA output created by $seq"
|
||||
|
||||
here=`pwd`
|
||||
tmp=/tmp/$$
|
||||
status=1 # failure is the default!
|
||||
trap "_cleanup; exit \$status" 0 1 2 3 15
|
||||
|
||||
_cleanup()
|
||||
{
|
||||
cd /
|
||||
rm -f $tmp.*
|
||||
}
|
||||
|
||||
# get standard environment, filters and checks
|
||||
. ./common/rc
|
||||
. ./common/filter
|
||||
|
||||
rm -f $seqres.full
|
||||
|
||||
# real QA test starts here
|
||||
_supported_fs overlay
|
||||
_require_scratch_nocheck
|
||||
|
||||
# Use small getdents bufsize to fit less than 10 entries
|
||||
# stuct linux_dirent64 is 20 bytes not including d_name
|
||||
bufsize=200
|
||||
|
||||
# Create enough files to be returned in multiple gendents() calls.
|
||||
# At least one of the files that we delete will not be listed in the
|
||||
# first call, so we may encounter stale entries in following calls.
|
||||
create_files() {
|
||||
for n in {1..100}; do
|
||||
touch ${1}/${2}${n}
|
||||
done
|
||||
}
|
||||
|
||||
# remove all files from previous runs
|
||||
_scratch_mkfs
|
||||
|
||||
# Create test area with a merge dir, a "former" merge dir,
|
||||
# a pure upper dir and impure upper dir. For each case, overlayfs
|
||||
# readdir cache is used a bit differently.
|
||||
lowerdir=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER
|
||||
upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
|
||||
|
||||
mkdir -p $lowerdir/merge $lowerdir/former $upperdir/pure $upperdir/impure
|
||||
# Lower files in merge dir are listed first
|
||||
create_files $lowerdir/merge m
|
||||
# Files to be moved into impure upper dir
|
||||
create_files $lowerdir o
|
||||
# File to be copied up to make former merge dir impure
|
||||
touch $lowerdir/former/f100
|
||||
|
||||
_scratch_mount
|
||||
|
||||
create_files $SCRATCH_MNT/pure p
|
||||
create_files $SCRATCH_MNT/former f
|
||||
# Copy up file so readdir will need to lookup its origin d_ino
|
||||
touch $SCRATCH_MNT/merge/m100
|
||||
# Move copied up files so readdir will need to lookup origin d_ino
|
||||
mv $SCRATCH_MNT/o* $SCRATCH_MNT/impure/
|
||||
|
||||
# Remove the lower directory and mount overlay again to create
|
||||
# a "former merge dir"
|
||||
$UMOUNT_PROG $SCRATCH_MNT
|
||||
rm -rf $lowerdir/former
|
||||
_scratch_mount
|
||||
|
||||
# Check readdir cache invalidate on pure upper dir
|
||||
echo -e "\nCreate file in pure upper dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/pure $bufsize "+p0" 2>&1 >> $seqres.full || \
|
||||
echo "Missing created file in pure upper dir (see $seqres.full for details)"
|
||||
echo -e "\nRemove file in pure upper dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/pure $bufsize "-p100" 2>&1 >> $seqres.full || \
|
||||
echo "Found unlinked file in pure upper dir (see $seqres.full for details)"
|
||||
|
||||
# Check readdir cache invalidate on impure upper dir
|
||||
echo -e "\nCreate file in impure upper dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/impure $bufsize "+o0" 2>&1 >> $seqres.full || \
|
||||
echo "Missing created file in impure upper dir (see $seqres.full for details)"
|
||||
echo -e "\nRemove file in impure upper dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/impure $bufsize "-o100" 2>&1 >> $seqres.full || \
|
||||
echo "Found unlinked file in impure upper dir (see $seqres.full for details)"
|
||||
|
||||
# Check readdir cache invalidate on merge dir
|
||||
echo -e "\nCreate file in merge dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/merge $bufsize "+m0" 2>&1 >> $seqres.full || \
|
||||
echo "Missing created file in merge dir (see $seqres.full for details)"
|
||||
echo -e "\nRemove file in merge dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/merge $bufsize "-m100" 2>&1 >> $seqres.full || \
|
||||
echo "Found unlinked file in merge dir (see $seqres.full for details)"
|
||||
|
||||
# Check readdir cache invalidate on former merge dir
|
||||
echo -e "\nCreate file in former merge dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/former $bufsize "+f0" 2>&1 >> $seqres.full || \
|
||||
echo "Missing created file in former merge dir (see $seqres.full for details)"
|
||||
echo -e "\nRemove file in former merge dir:" >> $seqres.full
|
||||
$here/src/t_dir_offset2 $SCRATCH_MNT/former $bufsize "-f100" 2>&1 >> $seqres.full || \
|
||||
echo "Found unlinked file in former merge dir (see $seqres.full for details)"
|
||||
|
||||
# success, all done
|
||||
echo "Silence is golden"
|
||||
status=0
|
||||
exit
|
||||
@@ -0,0 +1,2 @@
|
||||
QA output created by 077
|
||||
Silence is golden
|
||||
@@ -79,6 +79,7 @@
|
||||
074 auto quick exportfs dangerous
|
||||
075 auto quick perms
|
||||
076 auto quick perms dangerous
|
||||
077 auto quick dir
|
||||
100 auto quick union samefs
|
||||
101 auto quick union nonsamefs
|
||||
102 auto quick union nonsamefs xino
|
||||
|
||||
Reference in New Issue
Block a user