block: Use bdrv_reopen_set_read_only() in external_snapshot_commit()

This patch replaces the bdrv_reopen() call that set and remove the
BDRV_O_RDWR flag with the new bdrv_reopen_set_read_only() function.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2018-11-12 16:00:39 +02:00 committed by Kevin Wolf
parent 051a60f6a3
commit 1b57774f79

View File

@ -1703,8 +1703,7 @@ static void external_snapshot_commit(BlkActionState *common)
* bdrv_reopen_multiple() across all the entries at once, because we
* don't want to abort all of them if one of them fails the reopen */
if (!atomic_read(&state->old_bs->copy_on_read)) {
bdrv_reopen(state->old_bs, state->old_bs->open_flags & ~BDRV_O_RDWR,
NULL);
bdrv_reopen_set_read_only(state->old_bs, true, NULL);
}
aio_context_release(aio_context);