[Qemu-devel] [PATCH 32/34] qemu-iotests: Try setting cache mode for children

[Kevin Wolf]

This is a basic test for specifying cache modes for child nodes on the
command line. It doesn't take much time and works without O_DIRECT
support.

Signed-off-by: Kevin Wolf <address@hidden>
---
 tests/qemu-iotests/051     | 12 +++++++++
 tests/qemu-iotests/051.out | 63 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 75 insertions(+)

diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index e236685..c825191 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -176,6 +176,18 @@ run_qemu -drive 
file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a
 run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device 
lsi53c895a -device scsi-hd,drive=disk
 
 echo
+echo === Cache modes ===
+echo
+
+# Can't test direct=on here because O_DIRECT might not be supported on this FS
+# Test 132 checks the direct=on cases
+
+for cache in writeback writethrough unsafe invalid_value; do
+    echo -e "info block\ninfo block file\ninfo block backing\ninfo block 
backing-file" | \
+    run_qemu -drive 
file="$TEST_IMG",cache=$cache,backing.file.filename="$TEST_IMG.base",backing.cache.no-flush=on,backing.cache.writeback=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file
 -nodefaults
+done
+
+echo
 echo === Specifying the protocol layer ===
 echo
 
diff --git a/tests/qemu-iotests/051.out b/tests/qemu-iotests/051.out
index 2e3b48a..74ced74 100644
--- a/tests/qemu-iotests/051.out
+++ b/tests/qemu-iotests/051.out
@@ -221,6 +221,69 @@ QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 
+=== Cache modes ===
+
+Testing: -drive 
file=TEST_DIR/t.qcow2,cache=writeback,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.cache.writeback=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file
 -nodefaults
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo block
+ide0-hd0: TEST_DIR/t.qcow2 (qcow2)
+    Cache mode:       writeback
+    Backing file:     TEST_DIR/t.qcow2.base (chain depth: 1)
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
finfo block 
fiinfo block 
filinfo block file
+
+file: TEST_DIR/t.qcow2 (file)
+    Cache mode:       writeback
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
binfo block 
bainfo block 
bacinfo block 
backinfo block 
backiinfo block 
backininfo block 
backing
+backing: TEST_DIR/t.qcow2.base (qcow2, read-only)
+    Cache mode:       writeback, ignore flushes
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
binfo block 
bainfo block 
bacinfo block 
backinfo block 
backiinfo block 
backininfo block 
backinginfo block 
backing-info block 
backing-finfo 
block backing-fi!
 info block 
backing-filinfo
 block backing-file
+
+backing-file: TEST_DIR/t.qcow2.base (file, read-only)
+    Cache mode:       writeback, ignore flushes
+(qemu) qququiquit
+
+Testing: -drive 
file=TEST_DIR/t.qcow2,cache=writethrough,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.cache.writeback=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file
 -nodefaults
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo block
+ide0-hd0: TEST_DIR/t.qcow2 (qcow2)
+    Cache mode:       writethrough
+    Backing file:     TEST_DIR/t.qcow2.base (chain depth: 1)
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
finfo block 
fiinfo block 
filinfo block file
+
+file: TEST_DIR/t.qcow2 (file)
+    Cache mode:       writeback
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
binfo block 
bainfo block 
bacinfo block 
backinfo block 
backiinfo block 
backininfo block 
backing
+backing: TEST_DIR/t.qcow2.base (qcow2, read-only)
+    Cache mode:       writeback, ignore flushes
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
binfo block 
bainfo block 
bacinfo block 
backinfo block 
backiinfo block 
backininfo block 
backinginfo block 
backing-info block 
backing-finfo 
block backing-fi!
 info block 
backing-filinfo
 block backing-file
+
+backing-file: TEST_DIR/t.qcow2.base (file, read-only)
+    Cache mode:       writeback, ignore flushes
+(qemu) qququiquit
+
+Testing: -drive 
file=TEST_DIR/t.qcow2,cache=unsafe,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.cache.writeback=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file
 -nodefaults
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo block
+ide0-hd0: TEST_DIR/t.qcow2 (qcow2)
+    Cache mode:       writeback, ignore flushes
+    Backing file:     TEST_DIR/t.qcow2.base (chain depth: 1)
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
finfo block 
fiinfo block 
filinfo block file
+
+file: TEST_DIR/t.qcow2 (file)
+    Cache mode:       writeback, ignore flushes
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
binfo block 
bainfo block 
bacinfo block 
backinfo block 
backiinfo block 
backininfo block 
backing
+backing: TEST_DIR/t.qcow2.base (qcow2, read-only)
+    Cache mode:       writeback, ignore flushes
+(qemu) iininfinfoinfo 
info binfo 
blinfo bloinfo 
blocinfo 
blockinfo block 
info block 
binfo block 
bainfo block 
bacinfo block 
backinfo block 
backiinfo block 
backininfo block 
backinginfo block 
backing-info block 
backing-finfo 
block backing-fi!
 info block 
backing-filinfo
 block backing-file
+
+backing-file: TEST_DIR/t.qcow2.base (file, read-only)
+    Cache mode:       writeback, ignore flushes
+(qemu) qququiquit
+
+Testing: -drive 
file=TEST_DIR/t.qcow2,cache=invalid_value,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.cache.writeback=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file
 -nodefaults
+QEMU_PROG: -drive 
file=TEST_DIR/t.qcow2,cache=invalid_value,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.cache.writeback=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file:
 invalid cache option
+
+
 === Specifying the protocol layer ===
 
 Testing: -drive file=TEST_DIR/t.qcow2,file.driver=file
-- 
1.8.3.1