diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-10-27 17:53:19 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-11-07 19:14:19 +0100 |
| commit | 79bb76272763c090f2b1dae9519c516257241cac (patch) | |
| tree | 3a72d5bd932a111e4927da0bf6db89feca8233cd /block/block-copy.c | |
| parent | 9275fc72bd0a1c35e915e4991c7d27209ecab923 (diff) | |
block: Mark bdrv_chain_contains() and callers GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_chain_contains() need to hold a reader lock for the graph because
it calls bdrv_filter_or_cow_bs(), which accesses bs->file/backing.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231027155333.420094-11-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/block-copy.c')
| -rw-r--r-- | block/block-copy.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/block-copy.c b/block/block-copy.c index 6b2be3d204..9ee3dd7ef5 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -399,7 +399,9 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, * For more information see commit f8d59dfb40bb and test * tests/qemu-iotests/222 */ + bdrv_graph_rdlock_main_loop(); is_fleecing = bdrv_chain_contains(target->bs, source->bs); + bdrv_graph_rdunlock_main_loop(); s = g_new(BlockCopyState, 1); *s = (BlockCopyState) { |