| commit | 9275fc72bd0a1c35e915e4991c7d27209ecab923 | |
| author | Kevin Wolf <kwolf@redhat.com> | |
| Fri, 27 Oct 2023 15:53:18 +0000 (27 17:53 +0200) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Tue, 7 Nov 2023 18:14:19 +0000 (7 19:14 +0100) | ||
| tree | 36e8c741bc89c5db065e8c91dc11b4a7a6fd9136 | treesnapshot (tar.gz zip) |
| parent | ad74751fc0ffdad7678224df0e752689ebb3f4b7 | commitdiff |
block: Mark bdrv_(un)freeze_backing_chain() and callers GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_(un)freeze_backing_chain() need to hold a reader lock for the
graph because it calls bdrv_filter_or_cow_child(), which accesses
bs->file/backing.
Use the opportunity to make bdrv_is_backing_chain_frozen() static, it
has no external callers.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231027155333.420094-10-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_(un)freeze_backing_chain() need to hold a reader lock for the
graph because it calls bdrv_filter_or_cow_child(), which accesses
bs->file/backing.
Use the opportunity to make bdrv_is_backing_chain_frozen() static, it
has no external callers.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231027155333.420094-10-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>