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commit: Make base read-only if there is an early failure 

You can reproduce this by passing an invalid filter-node-name (like
"1234") to block-commit. In this case the base image is put in
read-write mode but is never reset back to read-only.

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 2019-04-29 15:51:08 +02:00 committed by Kevin Wolf
parent 265a7e54ef
commit 065abf9f2b
1 changed files with 3 additions and 0 deletions
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3
block/commit.c
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@ -383,6 +383,9 @@ fail:
if (s->top) {
blk_unref(s->top);
}
if (s->base_read_only) {
bdrv_reopen_set_read_only(base, true, NULL);
}
job_early_fail(&s->common.job);
/* commit_top_bs has to be replaced after deleting the block job,
* otherwise this would fail because of lack of permissions. */