qemu-iotests: Remove cache mode test without medium

Specifying the cache mode for a driver without a medium is not a useful
thing to do: As long as there is no medium, the cache mode doesn't make
a difference, and once the 'change' command is used to insert a medium,
it ignores the old cache mode and makes the new medium use
cache=writethrough.

Later patches will make it an error to specify the cache mode for an
empty drive. Remove the corresponding test case.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2015-05-07 14:41:30 +02:00
parent 39c4ae941e
commit fc17c25931
3 changed files with 14 additions and 14 deletions

View file

@ -183,12 +183,12 @@ echo
# Cannot use the test image because cache=none might not work on the host FS
# Use cdrom so that we won't get errors about missing media
run_qemu -drive media=cdrom,cache=none
run_qemu -drive media=cdrom,cache=directsync
run_qemu -drive media=cdrom,cache=writeback
run_qemu -drive media=cdrom,cache=writethrough
run_qemu -drive media=cdrom,cache=unsafe
run_qemu -drive media=cdrom,cache=invalid_value
run_qemu -drive driver=null-co,cache=none
run_qemu -drive driver=null-co,cache=directsync
run_qemu -drive driver=null-co,cache=writeback
run_qemu -drive driver=null-co,cache=writethrough
run_qemu -drive driver=null-co,cache=unsafe
run_qemu -drive driver=null-co,cache=invalid_value
echo
echo === Specifying the protocol layer ===

View file

@ -215,28 +215,28 @@ QEMU X.Y.Z monitor - type 'help' for more information
=== Cache modes ===
Testing: -drive media=cdrom,cache=none
Testing: -drive driver=null-co,cache=none
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qququiquit
Testing: -drive media=cdrom,cache=directsync
Testing: -drive driver=null-co,cache=directsync
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qququiquit
Testing: -drive media=cdrom,cache=writeback
Testing: -drive driver=null-co,cache=writeback
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qququiquit
Testing: -drive media=cdrom,cache=writethrough
Testing: -drive driver=null-co,cache=writethrough
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qququiquit
Testing: -drive media=cdrom,cache=unsafe
Testing: -drive driver=null-co,cache=unsafe
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qququiquit
Testing: -drive media=cdrom,cache=invalid_value
QEMU_PROG: -drive media=cdrom,cache=invalid_value: invalid cache option
Testing: -drive driver=null-co,cache=invalid_value
QEMU_PROG: -drive driver=null-co,cache=invalid_value: invalid cache option
=== Specifying the protocol layer ===

View file

@ -148,12 +148,12 @@ class VM(object):
def add_drive(self, path, opts='', interface='virtio'):
'''Add a virtio-blk drive to the VM'''
options = ['if=%s' % interface,
'cache=%s' % cachemode,
'id=drive%d' % self._num_drives]
if path is not None:
options.append('file=%s' % path)
options.append('format=%s' % imgfmt)
options.append('cache=%s' % cachemode)
if opts:
options.append(opts)