On 10/19/15 3:37 AM, Kaixu Xia wrote:
+/* flags for PERF_EVENT_ARRAY maps*/
+enum {
+ BPF_EVENT_CTL_BIT_CUR = 0,
+ BPF_EVENT_CTL_BIT_ALL = 1,
+ __NR_BPF_EVENT_CTL_BITS,
+};
+
+#define BPF_CTL_BIT_FLAG_MASK \
+ ((1ULL << __NR_BPF_EVENT_CTL_BITS) - 1)
+#define BPF_CTL_BIT_DUMP_CUR \
+ (1ULL << BPF_EVENT_CTL_BIT_CUR)
+#define BPF_CTL_BIT_DUMP_ALL \
+ (1ULL << BPF_EVENT_CTL_BIT_ALL)
+
the above shouldn't be part of uapi header. It can stay in bpf_trace.c
Just document these bits next to helper similar to skb_store_bytes()
The rest looks ok.
It still needs an ack from Peter for perf_event bits
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