xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bpf: add helper for copying attrs to struct bpf_map

Browse Source 
All map types reimplement the field-by-field copy of union bpf_attr
members into struct bpf_map.  Add a helper to perform this operation.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski
2018-01-11 20:29:06 -08:00
committed by Daniel Borkmann
parent 9328e0d1bc
commit bd475643d7
8 changed files with 17 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/bpf/sockmap.c
View File

@@ -513,13 +513,7 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
if (!stab)
return ERR_PTR(-ENOMEM);
/* mandatory map attributes */
stab->map.map_type = attr->map_type;
stab->map.key_size = attr->key_size;
stab->map.value_size = attr->value_size;
stab->map.max_entries = attr->max_entries;
stab->map.map_flags = attr->map_flags;
stab->map.numa_node = bpf_map_attr_numa_node(attr);
bpf_map_init_from_attr(&stab->map, attr);
/* make sure page count doesn't overflow */
cost = (u64) stab->map.max_entries * sizeof(struct sock *);