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This commit introduces BPF_MAP_TYPE_CGROUP_STORAGE maps: a special type of maps which are implementing the cgroup storage. >From the userspace point of view it's almost a generic hash map with the (cgroup inode id, attachment type) pair used as a key. The only difference is that some operations are restricted: 1) a user can't create new entries, 2) a user can't remove existing entries. The lookup from userspace is o(log(n)). Signed-off-by: Roman Gushchin <guro@fb.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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.. | ||
arraymap.c | ||
bpf_lru_list.c | ||
bpf_lru_list.h | ||
btf.c | ||
cgroup.c | ||
core.c | ||
cpumap.c | ||
devmap.c | ||
disasm.c | ||
disasm.h | ||
hashtab.c | ||
helpers.c | ||
inode.c | ||
local_storage.c | ||
lpm_trie.c | ||
Makefile | ||
map_in_map.c | ||
map_in_map.h | ||
offload.c | ||
percpu_freelist.c | ||
percpu_freelist.h | ||
sockmap.c | ||
stackmap.c | ||
syscall.c | ||
tnum.c | ||
verifier.c | ||
xskmap.c |