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block: Mark bdrv_refresh_limits() and callers GRAPH_RDLOCK

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This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_refresh_limits() need to hold a reader lock for the graph because
it accesses the children list of a node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-21-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf
2023-05-04 13:57:50 +02:00
parent 533c6e4ee8
commit e19b157f3c
4 changed files with 15 additions and 3 deletions
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5
include/block/block-global-state.h
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@@ -133,7 +133,10 @@ int bdrv_reopen_set_read_only(BlockDriverState *bs, bool read_only,
BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
const char *backing_file);
void bdrv_refresh_filename(BlockDriverState *bs);
void bdrv_refresh_limits(BlockDriverState *bs, Transaction *tran, Error **errp);
void GRAPH_RDLOCK
bdrv_refresh_limits(BlockDriverState *bs, Transaction *tran, Error **errp);
int bdrv_commit(BlockDriverState *bs);
int bdrv_make_empty(BdrvChild *c, Error **errp);
int bdrv_change_backing_file(BlockDriverState *bs, const char *backing_file,