Defined in 1 files as a prototype:
Defined in 2 files as a function:
- kernel/bpf/bpf_cgrp_storage.c, line 36 (as a function)
- kernel/bpf/local_storage.c, line 67 (as a function)
Referenced in 3 files:
Smatch caller information:
kernel/bpf/local_storage.c bpf_percpu_cgroup_storage_copy() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 4096-ptr_max |
| PARAM_VALUE | 1 | map | 0,16,4096-ptr_max |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 1 | map | (-1)-s32max |
| BUF_SIZE | 1 | map | (-1)-s32max |
| DATA_SOURCE | 0 | cgroup | r map_to_storage |
| DATA_SOURCE | 1 | map | $1 |
| USER_DATA | 1 | *map | s64min-s64max |
| USER_PTR | 1 | map | |
| LOCK2 | rcu_read |
kernel/bpf/local_storage.c bpf_percpu_cgroup_storage_update() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 4096-ptr_max |
| PARAM_VALUE | 1 | map | 0,16,4096-ptr_max |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 1 | map | (-1)-s32max |
| BUF_SIZE | 1 | map | (-1)-s32max |
| DATA_SOURCE | 0 | cgroup | r map_to_storage |
| DATA_SOURCE | 1 | map | $1 |
| USER_DATA | 1 | *map | s64min-s64max |
| USER_PTR | 1 | map | |
| LOCK2 | rcu_read |
kernel/bpf/local_storage.c cgroup_storage_get_next_key() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 4096-ptr_max |
| PARAM_VALUE | 0 | cgroup->lock.rlock.dep_map->name | 0-255 |
| PARAM_VALUE | 1 | map | 1-u64max |
| PARAM_VALUE | 2 | cacheit_lockit | 1 |
| BUF_SIZE | 1 | map | (-1)-s32max |
| BUF_SIZE | 1 | map | (-1)-s32max |
| CAPPED_DATA | 0 | &cgroup->list | 1 |
| DATA_SOURCE | 0 | cgroup | r map_to_storage |
| DATA_SOURCE | 1 | map | $1 |
| PARAM_COMPARE | 0 | &cgroup->list | != $0->list.next |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| USER_DATA | 1 | *map | s64min-s64max |
| USER_PTR | 1 | map | |
| LOCK2 | bh | ||
| LOCK2 | rcu_read | ||
| LOCK2 | 0 | &cgroup->lock | |
| HALF_LOCKED2 | &m->lock | ||
| TYPE_LOCK | (struct bpf_cgroup_storage_map)->lock |
kernel/bpf/local_storage.c cgroup_storage_lookup_elem() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 4096-ptr_max |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 1 | map | (-1)-s32max |
| BUF_SIZE | 1 | map | (-1)-s32max |
| DATA_SOURCE | 0 | cgroup | r map_to_storage |
| DATA_SOURCE | 1 | map | $1 |
| USER_DATA | 1 | *map | s64min-s64max |
| USER_PTR | 1 | map | |
| HALF_LOCKED2 | rcu_read |
kernel/bpf/local_storage.c cgroup_storage_seq_show_elem() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 4096-ptr_max |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 1 | map | 1-s32max |
| BUF_SIZE | 1 | map | 1-s32max |
| DATA_SOURCE | 1 | map | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | &m->lock | ||
| LOCK2 | rcu_read | ||
| TYPE_LOCK | (struct seq_file)->lock |
kernel/bpf/local_storage.c cgroup_storage_update_elem() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 4096-ptr_max |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 0 | cgroup | s32min-(-1),1-s32max |
| BUF_SIZE | 0 | cgroup | s32min-(-1),1-s32max |
| BUF_SIZE | 1 | map | (-1)-s32max |
| BUF_SIZE | 1 | map | (-1)-s32max |
| DATA_SOURCE | 0 | cgroup | $0 |
| DATA_SOURCE | 1 | map | $1 |
| USER_DATA | 1 | *map | s64min-s64max |
| USER_PTR | 1 | map | |
| HALF_LOCKED2 | rcu_read |
kernel/bpf/bpf_cgrp_storage.c ____bpf_cgrp_storage_get() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 1-u64max |
| PARAM_VALUE | 2 | cacheit_lockit | 1 |
| DATA_SOURCE | 0 | cgroup | $1 |
| DATA_SOURCE | 1 | map | $0 |
kernel/bpf/bpf_cgrp_storage.c bpf_cgrp_storage_lookup_elem() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 0-ptr_max |
| PARAM_VALUE | 1 | map | 4096-ptr_max |
| PARAM_VALUE | 1 | map->ops | 4096-ptr_max |
| PARAM_VALUE | 1 | map->ops->map_lookup_batch | 0,631431616227323904,968212869968297984,3636988385139924992,5229998854994575360,6341067303080312832,6609440822477774848 |
| PARAM_VALUE | 1 | map->ops->map_lookup_elem_sys_only | 0,1844650555866931200,2797019561733431296,5735237356065062912,8538665627833008128 |
| PARAM_VALUE | 1 | map->ops->map_release | 0,4096-ptr_max |
| PARAM_VALUE | 2 | cacheit_lockit | 1 |
| BUF_SIZE | 1 | map | s32min-(-1),1-s32max |
| BUF_SIZE | 1 | map | s32min-(-1),1-s32max |
| CAPPED_DATA | 1 | map | 1 |
| DATA_SOURCE | 0 | cgroup | r cgroup_v1v2_get_from_fd |
| DATA_SOURCE | 1 | map | $0 |
| HALF_LOCKED2 | rcu_read |
kernel/bpf/bpf_cgrp_storage.c cgroup_storage_delete() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | map->ops->map_delete_batch | 0,5247200330534285312 |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 1 | map | s32min-(-1),1-s32max |
| BUF_SIZE | 1 | map | s32min-(-1),1-s32max |
| DATA_SOURCE | 0 | cgroup | $0 |
| DATA_SOURCE | 1 | map | $1 |
kernel/bpf/cgroup.c bpf_cgroup_storages_alloc() -> cgroup_storage_lookup()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | cgroup | 1-u64max |
| PARAM_VALUE | 1 | map | 795592222344601600 |
| PARAM_VALUE | 2 | cacheit_lockit | 0 |
| BUF_SIZE | 1 | map | 16 |
| LOCK2 | global &cgroup_mutex |