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[Qemu-devel] [PULL 09/19] block: Keep "filename" option after parsing


From: Kevin Wolf
Subject: [Qemu-devel] [PULL 09/19] block: Keep "filename" option after parsing
Date: Fri, 7 Mar 2014 14:32:57 +0100

From: Max Reitz <address@hidden>

Currently, bdrv_file_open() always removes the "filename" option from
the options QDict after bdrv_parse_filename() has been (successfully)
called. However, for drivers with bdrv_needs_filename, it makes more
sense for bdrv_parse_filename() to overwrite the "filename" option and
for bdrv_file_open() to fetch the filename from there.

Since there currently are no drivers that implement
bdrv_parse_filename() and have bdrv_needs_filename set, this does not
change current behavior.

Signed-off-by: Max Reitz <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Benoit Canet <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
 block.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 7330a87..e7387f1 100644
--- a/block.c
+++ b/block.c
@@ -1017,7 +1017,12 @@ static int bdrv_file_open(BlockDriverState *bs, const 
char *filename,
             ret = -EINVAL;
             goto fail;
         }
-        qdict_del(*options, "filename");
+
+        if (!drv->bdrv_needs_filename) {
+            qdict_del(*options, "filename");
+        } else {
+            filename = qdict_get_str(*options, "filename");
+        }
     }
 
     if (!drv->bdrv_file_open) {
-- 
1.8.1.4




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