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[Qemu-devel] [PULL 23/48] qemu-iotests: Test cache mode option inheritan
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 23/48] qemu-iotests: Test cache mode option inheritance |
Date: |
Fri, 18 Dec 2015 16:07:29 +0100 |
This is doing a more complete test on setting cache modes both while
opening an image (i.e. in a -drive command line) and in reopen
situations. It checks that reopen can specify options for child nodes
and that cache modes are correctly inherited from parent nodes where
they are not specified.
Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
---
tests/qemu-iotests/142 | 354 +++++++++++++++++++++
tests/qemu-iotests/142.out | 773 +++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/group | 1 +
3 files changed, 1128 insertions(+)
create mode 100755 tests/qemu-iotests/142
create mode 100644 tests/qemu-iotests/142.out
diff --git a/tests/qemu-iotests/142 b/tests/qemu-iotests/142
new file mode 100755
index 0000000..8aa50f8
--- /dev/null
+++ b/tests/qemu-iotests/142
@@ -0,0 +1,354 @@
+#!/bin/bash
+#
+# Test for configuring cache modes of arbitrary nodes (requires O_DIRECT)
+#
+# Copyright (C) 2015 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
address@hidden
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+
+_cleanup()
+{
+ _cleanup_test_img
+ rm -f $TEST_IMG.snap
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt qcow2
+_supported_proto file
+_supported_os Linux
+
+# We test all cache modes anyway, but O_DIRECT needs to be supported
+_default_cache_mode none
+_supported_cache_modes none directsync
+
+function do_run_qemu()
+{
+ echo Testing: "$@"
+ (
+ if ! test -t 0; then
+ while read cmd; do
+ echo $cmd
+ done
+ fi
+ echo quit
+ ) | $QEMU -nographic -monitor stdio -nodefaults "$@"
+ echo
+}
+
+function run_qemu()
+{
+ do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu
+}
+
+size=128M
+
+TEST_IMG="$TEST_IMG.base" _make_test_img $size
+TEST_IMG="$TEST_IMG.snap" _make_test_img $size
+_make_test_img -b "$TEST_IMG.base" $size
+
+echo
+echo === Simple test for all cache modes ===
+echo
+
+run_qemu -drive file="$TEST_IMG",cache=none
+run_qemu -drive file="$TEST_IMG",cache=directsync
+run_qemu -drive file="$TEST_IMG",cache=writeback
+run_qemu -drive file="$TEST_IMG",cache=writethrough
+run_qemu -drive file="$TEST_IMG",cache=unsafe
+run_qemu -drive file="$TEST_IMG",cache=invalid_value
+
+echo
+echo === Check inheritance of cache modes ===
+echo
+
+files="if=none,file=$TEST_IMG,backing.file.filename=$TEST_IMG.base"
+ids="node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file"
+
+function check_cache_all()
+{
+ # cache.direct is supposed to be inherited by both bs->file and
+ # bs->backing
+
+ echo -e "cache.direct=on on none0"
+ echo "$hmp_cmds" | run_qemu -drive "$files","$ids",cache.direct=on | grep
"Cache"
+ echo -e "\ncache.direct=on on file"
+ echo "$hmp_cmds" | run_qemu -drive "$files","$ids",file.cache.direct=on |
grep "Cache"
+ echo -e "\ncache.direct=on on backing"
+ echo "$hmp_cmds" | run_qemu -drive "$files","$ids",backing.cache.direct=on
| grep "Cache"
+ echo -e "\ncache.direct=on on backing-file"
+ echo "$hmp_cmds" | run_qemu -drive
"$files","$ids",backing.file.cache.direct=on | grep "Cache"
+
+ # cache.writeback is supposed to be inherited by bs->backing; bs->file
+ # always gets cache.writeback=on
+
+ echo -e "\n\ncache.writeback=off on none0"
+ echo "$hmp_cmds" | run_qemu -drive "$files","$ids",cache.writeback=off |
grep "Cache"
+ echo -e "\ncache.writeback=off on file"
+ echo "$hmp_cmds" | run_qemu -drive
"$files","$ids",file.cache.writeback=off | grep "Cache"
+ echo -e "\ncache.writeback=off on backing"
+ echo "$hmp_cmds" | run_qemu -drive
"$files","$ids",backing.cache.writeback=off | grep "Cache"
+ echo -e "\ncache.writeback=off on backing-file"
+ echo "$hmp_cmds" | run_qemu -drive
"$files","$ids",backing.file.cache.writeback=off | grep "Cache"
+
+ # cache.no-flush is supposed to be inherited by both bs->file and
bs->backing
+
+ echo -e "\n\ncache.no-flush=on on none0"
+ echo "$hmp_cmds" | run_qemu -drive "$files","$ids",cache.no-flush=on |
grep "Cache"
+ echo -e "\ncache.no-flush=on on file"
+ echo "$hmp_cmds" | run_qemu -drive "$files","$ids",file.cache.no-flush=on
| grep "Cache"
+ echo -e "\ncache.no-flush=on on backing"
+ echo "$hmp_cmds" | run_qemu -drive
"$files","$ids",backing.cache.no-flush=on | grep "Cache"
+ echo -e "\ncache.no-flush=on on backing-file"
+ echo "$hmp_cmds" | run_qemu -drive
"$files","$ids",backing.file.cache.no-flush=on | grep "Cache"
+}
+
+echo
+echo "--- Configure cache modes on the command line ---"
+echo
+
+# First check the inherited cache mode after opening the image.
+
+hmp_cmds="info block image
+info block file
+info block backing
+info block backing-file"
+
+check_cache_all
+
+echo
+echo "--- Cache modes after reopen (live snapshot) ---"
+echo
+
+# Then trigger a reopen and check that the cache modes are still the same.
+
+hmp_cmds="snapshot_blkdev -n none0 $TEST_IMG.snap $IMGFMT
+info block
+info block image
+info block file
+info block backing
+info block backing-file"
+
+check_cache_all
+
+echo
+echo "--- Change cache modes with reopen (qemu-io command, flags) ---"
+echo
+
+# This one actually changes the cache mode with the reopen. For this test, the
+# new cache mode is specified in the flags, not as an option.
+
+hmp_cmds='qemu-io none0 "reopen -c none"
+info block image
+info block file
+info block backing
+info block backing-file'
+
+check_cache_all
+
+echo
+echo "--- Change cache modes with reopen (qemu-io command, options) ---"
+echo
+
+# This one actually changes the cache mode with the reopen. For this test, the
+# new cache mode is specified as an option, not in the flags.
+
+hmp_cmds='qemu-io none0 "reopen -o cache.direct=on"
+info block image
+info block file
+info block backing
+info block backing-file'
+
+check_cache_all
+
+echo
+echo "--- Change cache modes after snapshot ---"
+echo
+
+# This checks that the original image doesn't inherit from the snapshot
+
+hmp_cmds="snapshot_blkdev -n none0 $TEST_IMG.snap $IMGFMT
+qemu-io none0 \"reopen -c none\"
+info block none0
+info block image
+info block file
+info block backing
+info block backing-file"
+
+check_cache_all
+
+echo
+echo "--- Change cache mode in parent, child has explicit option in JSON ---"
+echo
+
+# This checks that children with options explicitly set by the json:
+# pseudo-protocol don't inherit these options from their parents.
+#
+# Yes, blkdebug::json:... is criminal, but I can't see another way to have a
+# BDS initialised with the json: pseudo-protocol, but still have it inherit
+# options from its parent node.
+
+hmp_cmds="qemu-io none0 \"reopen -o
cache.writeback=off,cache.direct=on,cache.no-flush=on\"
+info block image
+info block blkdebug
+info block file"
+
+echo "$hmp_cmds" | run_qemu -drive
if=none,file="blkdebug::json:{\"filename\":\"$TEST_IMG\",,\"cache\":{\"writeback\":false,,\"direct\":false}}",node-name=image,file.node-name=blkdebug,file.image.node-name=file
| grep "Cache"
+
+echo
+echo "=== Check that referenced BDSes don't inherit ==="
+echo
+
+drv_bkfile="if=none,driver=file,filename=$TEST_IMG.base,node-name=backing-file"
+drv_bk="if=none,file=json:{'driver':'$IMGFMT',,'file':'backing-file',,'node-name':'backing'}"
+drv_file="if=none,driver=file,filename=$TEST_IMG,node-name=file"
+drv_img="if=none,id=blk,file=json:{'driver':'$IMGFMT',,'file':'file',,'backing':'backing',,'node-name':'image'}"
+
+function check_cache_all_separate()
+{
+ # Check cache.direct
+
+ echo -e "cache.direct=on on blk"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive "$drv_bk" -drive
"$drv_file" -drive "$drv_img",cache.direct=on | grep "Cache"
+ echo -e "\ncache.direct=on on file"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive "$drv_bk" -drive
"$drv_file",cache.direct=on -drive "$drv_img" | grep "Cache"
+ echo -e "\ncache.direct=on on backing"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive
"$drv_bk",cache.direct=on -drive "$drv_file" -drive "$drv_img" | grep "Cache"
+ echo -e "\ncache.direct=on on backing-file"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile",cache.direct=on -drive
"$drv_bk" -drive "$drv_file" -drive "$drv_img" | grep "Cache"
+
+ # Check cache.writeback
+
+ echo -e "\n\ncache.writeback=off on blk"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive "$drv_bk" -drive
"$drv_file" -drive "$drv_img",cache.writeback=off | grep "Cache"
+ echo -e "\ncache.writeback=off on file"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive "$drv_bk" -drive
"$drv_file",cache.writeback=off -drive "$drv_img" | grep "Cache"
+ echo -e "\ncache.writeback=off on backing"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive
"$drv_bk",cache.writeback=off -drive "$drv_file" -drive "$drv_img" | grep
"Cache"
+ echo -e "\ncache.writeback=off on backing-file"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile",cache.writeback=off
-drive "$drv_bk" -drive "$drv_file" -drive "$drv_img" | grep "Cache"
+
+ # Check cache.no-flush
+
+ echo -e "\n\ncache.no-flush=on on blk"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive "$drv_bk" -drive
"$drv_file" -drive "$drv_img",cache.no-flush=on | grep "Cache"
+ echo -e "\ncache.no-flush=on on file"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive "$drv_bk" -drive
"$drv_file",cache.no-flush=on -drive "$drv_img" | grep "Cache"
+ echo -e "\ncache.no-flush=on on backing"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile" -drive
"$drv_bk",cache.no-flush=on -drive "$drv_file" -drive "$drv_img" | grep "Cache"
+ echo -e "\ncache.no-flush=on on backing-file"
+ echo "$hmp_cmds" | run_qemu -drive "$drv_bkfile",cache.no-flush=on -drive
"$drv_bk" -drive "$drv_file" -drive "$drv_img" | grep "Cache"
+}
+
+echo
+echo "--- Configure cache modes on the command line ---"
+echo
+
+# First check the inherited cache mode after opening the image.
+
+hmp_cmds="info block image
+info block file
+info block backing
+info block backing-file"
+
+check_cache_all_separate
+
+echo
+echo "--- Cache modes after reopen (live snapshot) ---"
+echo
+
+# Then trigger a reopen and check that the cache modes are still the same.
+
+hmp_cmds="snapshot_blkdev -n blk $TEST_IMG.snap $IMGFMT
+info block blk
+info block image
+info block file
+info block backing
+info block backing-file"
+
+check_cache_all_separate
+
+echo
+echo "--- Change cache modes with reopen (qemu-io command, flags) ---"
+echo
+
+# This one actually changes the cache mode with the reopen. For this test, the
+# new cache mode is specified as flags, not as option.
+
+hmp_cmds='qemu-io blk "reopen -c none"
+info block image
+info block file
+info block backing
+info block backing-file'
+
+check_cache_all_separate
+
+
+echo
+echo "=== Reopening children instead of the root ==="
+echo
+
+files="if=none,file=$TEST_IMG,backing.file.filename=$TEST_IMG.base"
+ids="node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file"
+
+echo
+echo "--- Basic reopen ---"
+echo
+
+hmp_cmds='qemu-io none0 "reopen -o backing.cache.direct=on"
+info block image
+info block file
+info block backing
+info block backing-file'
+
+check_cache_all
+
+echo
+echo "--- Change cache mode after reopening child ---"
+echo
+
+# This checks that children with options explicitly set with reopen don't
+# inherit these options from their parents any more
+
+# TODO Implement node-name support for 'qemu-io' HMP command for -c
+# Can use only -o to access child node options for now
+
+hmp_cmds="qemu-io none0 \"reopen -o
file.cache.writeback=off,file.cache.direct=off,file.cache.no-flush=off\"
+qemu-io none0 \"reopen -o
backing.file.cache.writeback=on,backing.file.cache.direct=off,backing.file.cache.no-flush=on\"
+qemu-io none0 \"reopen -c none\"
+info block image
+info block file
+info block backing
+info block backing-file"
+
+echo "$hmp_cmds" | run_qemu -drive "$files","$ids" | grep "Cache"
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/142.out b/tests/qemu-iotests/142.out
new file mode 100644
index 0000000..b555d5a
--- /dev/null
+++ b/tests/qemu-iotests/142.out
@@ -0,0 +1,773 @@
+QA output created by 142
+Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
+Formatting 'TEST_DIR/t.IMGFMT.snap', fmt=IMGFMT size=134217728
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
backing_file=TEST_DIR/t.IMGFMT.base
+
+=== Simple test for all cache modes ===
+
+Testing: -drive file=TEST_DIR/t.qcow2,cache=none
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K
+
+Testing: -drive file=TEST_DIR/t.qcow2,cache=directsync
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K
+
+Testing: -drive file=TEST_DIR/t.qcow2,cache=writeback
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K
+
+Testing: -drive file=TEST_DIR/t.qcow2,cache=writethrough
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K
+
+Testing: -drive file=TEST_DIR/t.qcow2,cache=unsafe
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q[K[Dqu[K[D[Dqui[K[D[D[Dquit[K
+
+Testing: -drive file=TEST_DIR/t.qcow2,cache=invalid_value
+QEMU_PROG: -drive file=TEST_DIR/t.qcow2,cache=invalid_value: invalid cache
option
+
+
+=== Check inheritance of cache modes ===
+
+
+--- Configure cache modes on the command line ---
+
+cache.direct=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on file
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on none0
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on file
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+
+
+cache.no-flush=on on none0
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+
+cache.no-flush=on on file
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+
+--- Cache modes after reopen (live snapshot) ---
+
+cache.direct=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on none0
+ Cache mode: writethrough
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+
+
+cache.no-flush=on on none0
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+
+cache.no-flush=on on file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+
+--- Change cache modes with reopen (qemu-io command, flags) ---
+
+cache.direct=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on file
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+
+
+cache.no-flush=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.no-flush=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.no-flush=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+
+--- Change cache modes with reopen (qemu-io command, options) ---
+
+cache.direct=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on none0
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on file
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+
+
+cache.no-flush=on on none0
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+
+cache.no-flush=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.no-flush=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+
+--- Change cache modes after snapshot ---
+
+cache.direct=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on none0
+ Cache mode: writeback, direct
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+
+
+cache.no-flush=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+
+cache.no-flush=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+
+--- Change cache mode in parent, child has explicit option in JSON ---
+
+ Cache mode: writethrough, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writethrough, ignore flushes
+
+=== Check that referenced BDSes don't inherit ===
+
+
+--- Configure cache modes on the command line ---
+
+cache.direct=on on blk
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on file
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+
+cache.direct=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on blk
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on file
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+
+
+cache.no-flush=on on blk
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on file
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+
+--- Cache modes after reopen (live snapshot) ---
+
+cache.direct=on on blk
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+
+cache.direct=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on blk
+ Cache mode: writethrough
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+
+
+cache.no-flush=on on blk
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+
+--- Change cache modes with reopen (qemu-io command, flags) ---
+
+cache.direct=on on blk
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.direct=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback
+
+cache.direct=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on blk
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on file
+ Cache mode: writeback, direct
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.writeback=off on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback
+
+cache.writeback=off on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough
+
+
+cache.no-flush=on on blk
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on file
+ Cache mode: writeback, direct
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+ Cache mode: writeback
+
+cache.no-flush=on on backing
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback, direct
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+
+=== Reopening children instead of the root ===
+
+
+--- Basic reopen ---
+
+cache.direct=on on none0
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on file
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.direct=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+
+cache.writeback=off on none0
+ Cache mode: writethrough
+ Cache mode: writeback
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on file
+ Cache mode: writeback
+ Cache mode: writethrough
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writethrough, direct
+ Cache mode: writeback, direct
+
+cache.writeback=off on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writethrough, direct
+
+
+cache.no-flush=on on none0
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+
+cache.no-flush=on on file
+ Cache mode: writeback
+ Cache mode: writeback, ignore flushes
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct
+
+cache.no-flush=on on backing
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct, ignore flushes
+ Cache mode: writeback, direct, ignore flushes
+
+cache.no-flush=on on backing-file
+ Cache mode: writeback
+ Cache mode: writeback
+ Cache mode: writeback, direct
+ Cache mode: writeback, direct, ignore flushes
+
+--- Change cache mode after reopening child ---
+
+ Cache mode: writeback, direct
+ Cache mode: writethrough
+ Cache mode: writeback, direct
+ Cache mode: writeback, ignore flushes
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 5a08808..ed6ce09 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -140,3 +140,4 @@
137 rw auto
138 rw auto quick
139 rw auto quick
+142 auto
--
1.8.3.1
- [Qemu-devel] [PULL 37/48] block: Remove prototype of bdrv_swap from header, (continued)
- [Qemu-devel] [PULL 37/48] block: Remove prototype of bdrv_swap from header, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 09/48] block: Exclude nested options only for children in append_open_options(), Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 24/48] qemu-iotests: Test reopen with node-name/driver options, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 39/48] block: use drained section around bdrv_snapshot_delete, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 38/48] iotests: Update comments for bdrv_swap() in 094, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 40/48] block: fix bdrv_ioctl called from coroutine, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 31/48] qcow2: Add function for refcount order amendment, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 29/48] qcow2: Split upgrade/downgrade paths for amend, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 30/48] qcow2: Use intermediate helper CB for amend, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 41/48] qemu-iotests: refine common.config, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 23/48] qemu-iotests: Test cache mode option inheritance,
Kevin Wolf <=
- [Qemu-devel] [PULL 32/48] qcow2: Invoke refcount order amendment function, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 42/48] qemu-iotests: s390x: fix test 051, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 02/48] iotests: 124: move incremental failure test, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 01/48] iotests: 124: Split into two test classes, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 47/48] qemu-img: abort when full_backing_filename not present, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 28/48] qcow2: Use abort() instead of assert(false), Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 21/48] blkdebug: Enable reopen, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 05/48] block: Fix reopen with semantically overlapping options, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 43/48] qemu-iotests: s390x: fix test 068, Kevin Wolf, 2015/12/18
- [Qemu-devel] [PULL 06/48] mirror: Error out when a BDS would get two BBs, Kevin Wolf, 2015/12/18