Daniel Borkmann c210129760 bpf: align and clean bpf_{map,prog}_get helpers
Add a bpf_map_get() function that we're going to use later on and
align/clean the remaining helpers a bit so that we have them a bit
more consistent:

  - __bpf_map_get() and __bpf_prog_get() that both work on the fd
    struct, check whether the descriptor is eBPF and return the
    pointer to the map/prog stored in the private data.

    Also, we can return f.file->private_data directly, the function
    signature is enough of a documentation already.

  - bpf_map_get() and bpf_prog_get() that both work on u32 user fd,
    call their respective __bpf_map_get()/__bpf_prog_get() variants,
    and take a reference.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 22:48:39 -05:00
..
2015-06-30 19:44:57 -07:00
2015-04-11 22:27:55 -04:00
2015-04-12 21:03:31 +02:00
2015-08-07 13:59:49 +02:00
2015-07-20 21:43:54 +02:00
2015-08-03 11:34:16 +02:00
2015-08-27 19:40:58 -04:00
2014-12-04 14:34:54 -05:00
2015-01-17 10:02:23 +13:00
2014-12-10 17:41:10 -08:00
2015-10-12 19:13:35 -07:00