diff options
Diffstat (limited to 'kernel/bpf/core.c')
| -rw-r--r-- | kernel/bpf/core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 4836ebf459cf..28d6000463e4 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -1624,16 +1624,29 @@ out: /* lock xadd *(u32 *)(dst_reg + off16) += src_reg */ atomic_add((u32) SRC, (atomic_t *)(unsigned long) (DST + insn->off)); + break; + case BPF_ADD | BPF_FETCH: + SRC = (u32) atomic_fetch_add( + (u32) SRC, + (atomic_t *)(unsigned long) (DST + insn->off)); + break; default: goto default_label; } CONT; + STX_ATOMIC_DW: switch (IMM) { case BPF_ADD: /* lock xadd *(u64 *)(dst_reg + off16) += src_reg */ atomic64_add((u64) SRC, (atomic64_t *)(unsigned long) (DST + insn->off)); + break; + case BPF_ADD | BPF_FETCH: + SRC = (u64) atomic64_fetch_add( + (u64) SRC, + (atomic64_t *)(unsigned long) (DST + insn->off)); + break; default: goto default_label; } |