diff options
| author |   Yonghong Song <yhs@fb.com> | 2020-07-23 11:41:10 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-07-25 20:16:32 -0700 |
| commit | f9c792729581bd8b8473af163e8ab426c2c61d89 (patch) | |
| tree | 2b5ff0209c3cb3cd0ab98a145c3541ce40c11017 /include/linux/bpf.h | |
| parent | bpf: Refactor bpf_iter_reg to have separate seq_info member (diff) | |
| download | linux-dev-f9c792729581bd8b8473af163e8ab426c2c61d89.tar.xz linux-dev-f9c792729581bd8b8473af163e8ab426c2c61d89.zip | |
bpf: Refactor to provide aux info to bpf_iter_init_seq_priv_t
This patch refactored target bpf_iter_init_seq_priv_t callback
function to accept additional information. This will be needed
in later patches for map element targets since a particular
map should be passed to traverse elements for that particular
map. In the future, other information may be passed to target
as well, e.g., pid, cgroup id, etc. to customize the iterator.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200723184110.590156-1-yhs@fb.com
Diffstat (limited to 'include/linux/bpf.h')
| -rw-r--r-- | include/linux/bpf.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 127067f71fd4..ef52717336cf 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -33,11 +33,13 @@ struct btf; struct btf_type; struct exception_table_entry; struct seq_operations; +struct bpf_iter_aux_info; extern struct idr btf_idr; extern spinlock_t btf_idr_lock; -typedef int (*bpf_iter_init_seq_priv_t)(void *private_data); +typedef int (*bpf_iter_init_seq_priv_t)(void *private_data, + struct bpf_iter_aux_info *aux); typedef void (*bpf_iter_fini_seq_priv_t)(void *private_data); struct bpf_iter_seq_info { const struct seq_operations *seq_ops; @@ -1198,6 +1200,9 @@ int bpf_obj_get_user(const char __user *pathname, int flags); extern int bpf_iter_ ## target(args); \ int __init bpf_iter_ ## target(args) { return 0; } +struct bpf_iter_aux_info { +}; + #define BPF_ITER_CTX_ARG_MAX 2 struct bpf_iter_reg { const char *target; |