xemu/tests/qemu-iotests/133.out
Alberto Garcia 8eb4b07b6f block: Remove assertions from update_flags_from_options()
This function takes four options (cache.direct, cache.no-flush,
read-only and auto-read-only) from a QemuOpts object and updates the
flags accordingly.

If any of those options is not set (because it was missing from the
original QDict or because it had an invalid value) then the function
aborts with a failed assertion:

   $ qemu-io -c 'reopen -o read-only=foo' hd.qcow2
   block.c:1126: update_flags_from_options: Assertion `qemu_opt_find(opts, BDRV_OPT_CACHE_DIRECT)' failed.
   Aborted

This assertion is unnecessary, and it forces any caller of
bdrv_reopen() to pass all the aforementioned four options. This may
have made sense in order to remove ambiguity when bdrv_reopen() was
taking both flags and options, but that's not the case anymore.

It's also unnecessary if we want to validate the option values,
because bdrv_reopen_prepare() already takes care of that, as we can
see if we remove the assertions:

   $ qemu-io -c 'reopen -o read-only=foo' hd.qcow2
   Parameter 'read-only' expects 'on' or 'off'

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-12-14 11:55:02 +01:00

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QA output created by 133
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
=== Check that node-name can't be changed ===
Cannot change the option 'node-name'
Cannot change the option 'node-name'
Cannot change the option 'node-name'
=== Check that unchanged node-name is okay ===
=== Check that driver can't be changed ===
Cannot change the option 'driver'
Cannot change the option 'driver'
Cannot change the option 'driver'
=== Check that unchanged driver is okay ===
=== Check that reopening works with non-string options ===
format name: null-co
format name: null-co
=== Check that mixing -c/-r/-w and their corresponding options is forbidden ===
Cannot set both -r/-w and 'read-only'
Cannot set both -r/-w and 'read-only'
Cannot set both -c and the cache options
Cannot set both -c and the cache options
Cannot set both -c and the cache options
=== Check that invalid options are handled correctly ===
Parameter 'read-only' expects 'on' or 'off'
Parameter 'cache.no-flush' expects 'on' or 'off'
Parameter 'cache.direct' expects 'on' or 'off'
Parameter 'auto-read-only' expects 'on' or 'off'
*** done