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blkdebug: Don't require sophisticated filename

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If the filename is not prefixed by "blkdebug:" in
blkdebug_parse_filename(), the blkdebug driver was not selected through
that protocol prefix, but by an explicit command line option
(file.driver=blkdebug or something similar). Contrary to the current
reaction, this is not a problem at all; we just need to store the
filename (in the x-image option) and can go on; the user just has to
manually specify the config option.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-12-20 19:28:02 +01:00 committed by Kevin Wolf
parent 466b49f276
commit d4881b9bcb
1 changed files with 3 additions and 1 deletions
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4
block/blkdebug.c
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@ -313,7 +313,9 @@ static void blkdebug_parse_filename(const char *filename, QDict *options,
/* Parse the blkdebug: prefix */ /* Parse the blkdebug: prefix */
if (!strstart(filename, "blkdebug:", &filename)) { if (!strstart(filename, "blkdebug:", &filename)) {
error_setg(errp, "File name string must start with 'blkdebug:'"); /* There was no prefix; therefore, all options have to be already
present in the QDict (except for the filename) */
qdict_put(options, "x-image", qstring_from_str(filename));
return; return;
} }