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block: Fix open_flags in bdrv_reopen()

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Use the same function as bdrv_open() for determining what the right
flags for bs->file are. Without doing this, a reopen means that
bs->file loses BDRV_O_CACHE_WB or BDRV_O_UNMAP if bs doesn't have it as
well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2014-04-25 19:04:55 +02:00
parent 7e3d98dd31
commit f1f25a2e2e
1 changed files with 4 additions and 1 deletions
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5
block.c
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@ -1525,8 +1525,11 @@ BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
QSIMPLEQ_INIT(bs_queue);
}
/* bdrv_open() masks this flag out */
flags &= ~BDRV_O_PROTOCOL;
if (bs->file) {
bdrv_reopen_queue(bs_queue, bs->file, flags);
bdrv_reopen_queue(bs_queue, bs->file, bdrv_inherited_flags(flags));
}
bs_entry = g_new0(BlockReopenQueueEntry, 1);