diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-09-11 11:46:12 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-09-20 17:46:01 +0200 |
| commit | 3804e3cf540af25a01d0d418a5a1d4f78c2574ff (patch) | |
| tree | 7a3fb1b6ec027501a297d2cacbe31e00ecaaa8c9 /include | |
| parent | afdaeb9ea06ea641ccc4226964b8e278af5e7685 (diff) | |
block: Mark bdrv_parent_perms_conflict() and callers GRAPH_RDLOCK
The function reads the parents list, so it needs to hold the graph lock.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230911094620.45040-14-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block_int-common.h | 6 | ||||
| -rw-r--r-- | include/block/block_int-global-state.h | 8 | ||||
| -rw-r--r-- | include/sysemu/block-backend-global-state.h | 4 |
3 files changed, 10 insertions, 8 deletions
diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h index 85be256c09..fda9d8b5c8 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -311,7 +311,7 @@ struct BlockDriver { */ void (*bdrv_cancel_in_flight)(BlockDriverState *bs); - int (*bdrv_inactivate)(BlockDriverState *bs); + int GRAPH_RDLOCK_PTR (*bdrv_inactivate)(BlockDriverState *bs); int (*bdrv_snapshot_create)(BlockDriverState *bs, QEMUSnapshotInfo *sn_info); @@ -944,8 +944,8 @@ struct BdrvChildClass { * when migration is completing) and it can start/stop requesting * permissions and doing I/O on it. */ - void (*activate)(BdrvChild *child, Error **errp); - int (*inactivate)(BdrvChild *child); + void GRAPH_RDLOCK_PTR (*activate)(BdrvChild *child, Error **errp); + int GRAPH_RDLOCK_PTR (*inactivate)(BdrvChild *child); void GRAPH_WRLOCK_PTR (*attach)(BdrvChild *child); void GRAPH_WRLOCK_PTR (*detach)(BdrvChild *child); diff --git a/include/block/block_int-global-state.h b/include/block/block_int-global-state.h index da5fb31089..bebcc08bce 100644 --- a/include/block/block_int-global-state.h +++ b/include/block/block_int-global-state.h @@ -212,8 +212,9 @@ void bdrv_get_cumulative_perm(BlockDriverState *bs, uint64_t *perm, * bdrv_child_refresh_perms() instead and make the parent's * .bdrv_child_perm() implementation return the correct values. */ -int bdrv_child_try_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared, - Error **errp); +int GRAPH_RDLOCK +bdrv_child_try_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared, + Error **errp); /** * Calls bs->drv->bdrv_child_perm() and updates the child's permission @@ -223,7 +224,8 @@ int bdrv_child_try_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared, * values than before, but which will not result in the block layer * automatically refreshing the permissions. */ -int bdrv_child_refresh_perms(BlockDriverState *bs, BdrvChild *c, Error **errp); +int GRAPH_RDLOCK +bdrv_child_refresh_perms(BlockDriverState *bs, BdrvChild *c, Error **errp); bool GRAPH_RDLOCK bdrv_recurse_can_replace(BlockDriverState *bs, BlockDriverState *to_replace); diff --git a/include/sysemu/block-backend-global-state.h b/include/sysemu/block-backend-global-state.h index 184e667ebd..d5f675493a 100644 --- a/include/sysemu/block-backend-global-state.h +++ b/include/sysemu/block-backend-global-state.h @@ -61,8 +61,8 @@ 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); -int blk_set_perm(BlockBackend *blk, uint64_t perm, uint64_t shared_perm, - Error **errp); +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); void blk_iostatus_enable(BlockBackend *blk); |