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| author |   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-09-26 15:54:31 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-09-26 15:54:31 +0200 |
| commit | aaccf3c97418f169afdbb5855e9cbcbda34e90fd (patch) | |
| tree | 5d4207e67958bdbc23288cf30178692f5534e1a0 /kernel/bpf/helpers.c | |
| parent | Documentation/fb: corrections for fbcon.txt (diff) | |
| parent | Linux 4.19-rc5 (diff) | |
| download | wireguard-linux-aaccf3c97418f169afdbb5855e9cbcbda34e90fd.tar.xz wireguard-linux-aaccf3c97418f169afdbb5855e9cbcbda34e90fd.zip | |
Merge tag 'v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Sync with upstream (which now contains fbdev-v4.19 changes) to
prepare a base for fbdev-v4.20 changes.
Diffstat (limited to '')
| -rw-r--r-- | kernel/bpf/helpers.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 73065e2d23c2..1991466b8327 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -193,4 +193,24 @@ const struct bpf_func_proto bpf_get_current_cgroup_id_proto = { .gpl_only = false, .ret_type = RET_INTEGER, }; + +DECLARE_PER_CPU(void*, bpf_cgroup_storage); + +BPF_CALL_2(bpf_get_local_storage, struct bpf_map *, map, u64, flags) +{ + /* map and flags arguments are not used now, + * but provide an ability to extend the API + * for other types of local storages. + * verifier checks that their values are correct. + */ + return (unsigned long) this_cpu_read(bpf_cgroup_storage); +} + +const struct bpf_func_proto bpf_get_local_storage_proto = { + .func = bpf_get_local_storage, + .gpl_only = false, + .ret_type = RET_PTR_TO_MAP_VALUE, + .arg1_type = ARG_CONST_MAP_PTR, + .arg2_type = ARG_ANYTHING, +}; #endif |