Alexei Starovoitov 606274c5ab bpf: introduce bpf_get_current_task() helper
over time there were multiple requests to access different data
structures and fields of task_struct current, so finally add
the helper to access 'current' as-is. Tracing bpf programs will do
the rest of walking the pointers via bpf_probe_read().
Note that current can be null and bpf program has to deal it with,
but even dumb passing null into bpf_probe_read() is still safe.

Suggested-by: Brendan Gregg <brendan.d.gregg@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 00:00:16 -04:00
..
2016-05-10 17:12:49 +02:00
2016-06-03 15:05:51 +02:00
2015-04-11 22:27:55 -04:00
2015-11-19 17:51:48 +01:00
2016-01-22 18:04:28 -05:00
2016-04-04 09:46:47 -04:00
2016-02-08 11:25:39 -05:00
2015-12-14 14:54:37 -05:00
2016-07-01 16:30:38 -04:00
2015-04-12 21:03:31 +02:00
2015-11-23 09:44:58 +01:00
2016-05-23 17:04:14 -07:00
2016-02-16 13:04:58 -05:00
2016-05-27 15:26:11 -07:00
2015-01-17 10:02:23 +13:00
2016-03-01 20:36:56 +01:00