From: Alexei Starovoitov
Date: Mon, 22 May 2017 16:35:07 -0700
> yet perf_event_read() is least documented. hmm.
> * u64 bpf_perf_event_read(&map, index)
> * Return: Number events read or error code
>
> that needs to be fixed.
That's exactly what I was talking about :-)
On 5/22/17 4:26 PM, David Miller wrote:
From: Alexei Starovoitov
Date: Mon, 22 May 2017 15:48:40 -0700
@@ -31,7 +31,7 @@ static unsigned long long (*bpf_get_current_uid_gid)(void) =
(void *) BPF_FUNC_get_current_uid_gid;
static int (*bpf_get_current_comm)(void *buf, int buf_size) =
From: Alexei Starovoitov
Date: Mon, 22 May 2017 15:48:40 -0700
> @@ -31,7 +31,7 @@ static unsigned long long (*bpf_get_current_uid_gid)(void) =
> (void *) BPF_FUNC_get_current_uid_gid;
> static int (*bpf_get_current_comm)(void *buf, int buf_size) =
> (void *) BPF_FUNC_get_current_com
From: Teng Qin
This commit adds sample to test attach BPF to HW_CACHE and RAW type
events into the trace_event sample. The test outputs a lot of things to
screen, therefore make sure it aborts on error so it's easier to see if
everything works. Also update clean-up logic to disable the perf event
