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authorKevin Wolf <kwolf@redhat.com>2023-10-27 17:53:26 +0200
committerKevin Wolf <kwolf@redhat.com>2023-11-08 17:56:17 +0100
commit004915a96a7a40e942ac85e6d22518cbcd283506 (patch)
treef664b5576e09107b86228b8b6fa340f74c907677 /include/block/block_int-common.h
parentccd6a37947574707613e826e2bf04d55f1d5f238 (diff)
block: Protect bs->backing with graph_lock
Almost all functions that access bs->backing already take the graph lock now. Add locking to the remaining users and finally annotate the struct field itself as protected by the graph lock. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-ID: <20231027155333.420094-18-kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block/block_int-common.h')
-rw-r--r--include/block/block_int-common.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h
index c0db862de7..ed6066929a 100644
--- a/include/block/block_int-common.h
+++ b/include/block/block_int-common.h
@@ -1178,7 +1178,7 @@ struct BlockDriverState {
* are connected with BdrvChildRole.
*/
QLIST_HEAD(, BdrvChild GRAPH_RDLOCK_PTR) children;
- BdrvChild *backing;
+ BdrvChild * GRAPH_RDLOCK_PTR backing;
BdrvChild *file;
QLIST_HEAD(, BdrvChild GRAPH_RDLOCK_PTR) parents;