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block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK

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This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_refresh_filename() 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>
Message-ID: <20230929145157.45443-11-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf
2023-09-29 16:51:45 +02:00
parent 15f3f1fe57
commit b7cfc7d58e
12 changed files with 101 additions and 47 deletions
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9
include/block/block-global-state.h
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@@ -132,7 +132,7 @@ int bdrv_reopen_set_read_only(BlockDriverState *bs, bool read_only,
Error **errp);
BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
const char *backing_file);
void bdrv_refresh_filename(BlockDriverState *bs);
void GRAPH_RDLOCK bdrv_refresh_filename(BlockDriverState *bs);
void GRAPH_RDLOCK
bdrv_refresh_limits(BlockDriverState *bs, Transaction *tran, Error **errp);
@@ -216,8 +216,11 @@ void bdrv_next_cleanup(BdrvNextIterator *it);
BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs);
void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
void *opaque, bool read_only);
char *bdrv_get_full_backing_filename(BlockDriverState *bs, Error **errp);
char *bdrv_dirname(BlockDriverState *bs, Error **errp);
char * GRAPH_RDLOCK
bdrv_get_full_backing_filename(BlockDriverState *bs, Error **errp);
char * GRAPH_RDLOCK bdrv_dirname(BlockDriverState *bs, Error **errp);
void bdrv_img_create(const char *filename, const char *fmt,
const char *base_filename, const char *base_fmt,