mirror of https://gitee.com/openkylin/linux.git
a316338cb7
trie_alloc() always needs to have BPF_F_NO_PREALLOC passed in via
attr->map_flags, since it does not support preallocation yet. We
check the flag, but we never copy the flag into trie->map.map_flags,
which is later on exposed into fdinfo and used by loaders such as
iproute2. Latter uses this in bpf_map_selfcheck_pinned() to test
whether a pinned map has the same spec as the one from the BPF obj
file and if not, bails out, which is currently the case for lpm
since it exposes always 0 as flags.
Also copy over flags in array_map_alloc() and stack_map_alloc().
They always have to be 0 right now, but we should make sure to not
miss to copy them over at a later point in time when we add actual
flags for them to use.
Fixes:
|
||
|---|---|---|
| .. | ||
| Makefile | ||
| arraymap.c | ||
| bpf_lru_list.c | ||
| bpf_lru_list.h | ||
| cgroup.c | ||
| core.c | ||
| hashtab.c | ||
| helpers.c | ||
| inode.c | ||
| lpm_trie.c | ||
| map_in_map.c | ||
| map_in_map.h | ||
| percpu_freelist.c | ||
| percpu_freelist.h | ||
| stackmap.c | ||
| syscall.c | ||
| verifier.c | ||