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| author | Eric Blake <eblake@redhat.com> | 2020-10-27 00:05:53 -0500 |
|---|---|---|
| committer | Eric Blake <eblake@redhat.com> | 2020-10-30 15:21:23 -0500 |
| commit | a92b1b065eed385d9077be735eb8e92f5a6e150a (patch) | |
| tree | 7c08e4904f939ec6e4ba8ffe1cd0d0a35daab1bf /block/commit.c | |
| parent | 3b1f244c59b7045680e615d50dc444a316abd891 (diff) | |
block: Return depth level during bdrv_is_allocated_above
When checking for allocation across a chain, it's already easy to
count the depth within the chain at which the allocation is found.
Instead of throwing that information away, return it to the caller.
Existing callers only cared about allocated/non-allocated, but having
a depth available will be used by NBD in the next patch.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201027050556.269064-9-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'block/commit.c')
| -rw-r--r-- | block/commit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/commit.c b/block/commit.c index 1e85c306cc..71db7ba747 100644 --- a/block/commit.c +++ b/block/commit.c @@ -156,7 +156,7 @@ static int coroutine_fn commit_run(Job *job, Error **errp) /* Copy if allocated above the base */ ret = bdrv_is_allocated_above(blk_bs(s->top), s->base_overlay, true, offset, COMMIT_BUFFER_SIZE, &n); - copy = (ret == 1); + copy = (ret > 0); trace_commit_one_iteration(s, offset, n, ret); if (copy) { assert(n < SIZE_MAX); |