motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 07:43:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK

Browse source 
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_first_blk() and bdrv_is_root_node() need to hold a reader lock
for the graph. These functions are the only functions in block-backend.c
that access the parent list of a node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230929145157.45443-5-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 16:51:39 +02:00
parent 0e6bad1f21
commit 2b3912f135
14 changed files with 53 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

4
include/sysemu/block-backend-global-state.h
View file

@ -59,8 +59,8 @@ BlockBackend *blk_by_public(BlockBackendPublic *public);
void blk_remove_bs(BlockBackend *blk);
int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp);
int blk_replace_bs(BlockBackend *blk, BlockDriverState *new_bs, Error **errp);
bool bdrv_has_blk(BlockDriverState *bs);
bool bdrv_is_root_node(BlockDriverState *bs);
bool GRAPH_RDLOCK bdrv_has_blk(BlockDriverState *bs);
bool GRAPH_RDLOCK bdrv_is_root_node(BlockDriverState *bs);
int GRAPH_UNLOCKED blk_set_perm(BlockBackend *blk, uint64_t perm,
uint64_t shared_perm, Error **errp);
void blk_get_perm(BlockBackend *blk, uint64_t *perm, uint64_t *shared_perm);