linux/kernel/bpf
Jakub Kicinski ad8ad79f4f bpf: offload: free program id when device disappears
Bound programs are quite useless after their device disappears.
They are simply waiting for reference count to go to zero,
don't list them in BPF_PROG_GET_NEXT_ID by freeing their ID
early.

Note that orphaned offload programs will return -ENODEV on
BPF_OBJ_GET_INFO_BY_FD so user will never see ID 0.

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>
2017-12-31 16:12:23 +01:00
..
arraymap.c perf/bpf: Extend the perf_event_read_local() interface, a.k.a. "bpf: perf event change needed for subsequent bpf helpers" 2017-10-27 10:31:56 +02:00
bpf_lru_list.c bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4 2017-04-17 13:55:52 -04:00
bpf_lru_list.h bpf: Only set node->ref = 1 if it has not been set 2017-09-01 09:57:39 -07:00
cgroup.c bpf/cgroup: fix a verification error for a CGROUP_DEVICE type prog 2017-12-19 01:43:29 +01:00
core.c bpf: allow for correlation of maps and helpers in dump 2017-12-20 18:09:40 -08:00
cpumap.c bpf: cpumap micro-optimization in cpu_map_enqueue 2017-11-02 16:13:14 +09:00
devmap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-22 13:39:14 +01:00
disasm.c bpf: allow for correlation of maps and helpers in dump 2017-12-20 18:09:40 -08:00
disasm.h bpf: allow for correlation of maps and helpers in dump 2017-12-20 18:09:40 -08:00
hashtab.c bpf: add schedule points to map alloc/free 2017-12-12 15:27:22 -08:00
helpers.c bpf: rename ARG_PTR_TO_STACK 2017-01-09 16:56:27 -05:00
inode.c bpf: Add file mode configuration into bpf maps 2017-10-20 13:32:59 +01:00
lpm_trie.c bpf: Add file mode configuration into bpf maps 2017-10-20 13:32:59 +01:00
Makefile bpf: offload: add infrastructure for loading programs for a specific netdev 2017-11-05 22:26:18 +09:00
map_in_map.c bpf: Add syscall lookup support for fd array and htab 2017-06-29 13:13:25 -04:00
map_in_map.h bpf: Add syscall lookup support for fd array and htab 2017-06-29 13:13:25 -04:00
offload.c bpf: offload: free program id when device disappears 2017-12-31 16:12:23 +01:00
percpu_freelist.c bpf: fix lockdep splat 2017-11-15 19:46:32 +09:00
percpu_freelist.h bpf: introduce percpu_freelist 2016-03-08 15:28:31 -05:00
sockmap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-02 15:23:39 +09:00
stackmap.c bpf: Add file mode configuration into bpf maps 2017-10-20 13:32:59 +01:00
syscall.c bpf: offload: free program id when device disappears 2017-12-31 16:12:23 +01:00
tnum.c bpf/verifier: track signed and unsigned min/max values 2017-08-08 17:51:34 -07:00
verifier.c bpf: offload: allow netdev to disappear while verifier is running 2017-12-31 16:12:23 +01:00