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vvfat: Fix inherit_options flags 

Overriding flags violates the precedence rules of
bdrv_reopen_queue_child. Just like the read-only option, no-flush should
be put into the options. The same is done in bdrv_temp_snapshot_options.

Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2018-03-15 11:45:07 +08:00 committed by Kevin Wolf
parent b76e4458b1
commit 4f8e3a1f22
1 changed files with 1 additions and 1 deletions
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2
block/vvfat.c
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@ -3129,7 +3129,7 @@ static void vvfat_qcow_options(int *child_flags, QDict *child_options,
int parent_flags, QDict *parent_options)
{
qdict_set_default_str(child_options, BDRV_OPT_READ_ONLY, "off");
*child_flags = BDRV_O_NO_FLUSH;
qdict_set_default_str(child_options, BDRV_OPT_CACHE_NO_FLUSH, "on");
}
static const BdrvChildRole child_vvfat_qcow = {