| commit | 858d68f10238fdd1ebdd0096f912f063e97c6766 | |
| author | Daniel Borkmann <daniel@iogearbox.net> | |
| Fri, 15 Jul 2016 23:15:55 +0000 (16 01:15 +0200) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Sun, 17 Jul 2016 05:03:39 +0000 (16 22:03 -0700) | ||
| tree | a8ec4a97a18b1c5671f178bad48b84337ec81259 | treesnapshot (tar.gz zip) |
| parent | c5c4e45c4b79acb23f07e43dac1348e67b4ddf91 | commitdiff |
bpf: bpf_event_entry_gen's alloc needs to be in atomic context
Should have been obvious, only called from bpf() syscall via map_update_elem()
that calls bpf_fd_array_map_update_elem() under RCU read lock and thus this
must also be in GFP_ATOMIC, of course.
Fixes: 3b1efb196eee ("bpf, maps: flush own entries on perf map release")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Should have been obvious, only called from bpf() syscall via map_update_elem()
that calls bpf_fd_array_map_update_elem() under RCU read lock and thus this
must also be in GFP_ATOMIC, of course.
Fixes: 3b1efb196eee ("bpf, maps: flush own entries on perf map release")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| kernel/bpf/arraymap.c | diffblobblamehistory |