Files
linux/include/linux
David Miller 3d9f773cf2 bpf: Use bpf_prog_run_pin_on_cpu() at simple call sites.
All of these cases are strictly of the form:

	preempt_disable();
	BPF_PROG_RUN(...);
	preempt_enable();

Replace this with bpf_prog_run_pin_on_cpu() which wraps BPF_PROG_RUN()
with:

	migrate_disable();
	BPF_PROG_RUN(...);
	migrate_enable();

On non RT enabled kernels this maps to preempt_disable/enable() and on RT
enabled kernels this solely prevents migration, which is sufficient as
there is no requirement to prevent reentrancy to any BPF program from a
preempting task. The only requirement is that the program stays on the same
CPU.

Therefore, this is a trivially correct transformation.

The seccomp loop does not need protection over the loop. It only needs
protection per BPF filter program

[ tglx: Converted to bpf_prog_run_pin_on_cpu() ]

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200224145643.691493094@linutronix.de
2020-02-24 16:20:09 -08:00
..
2019-08-09 09:15:05 +02:00
2020-02-16 18:30:41 -08:00
2019-09-16 09:56:27 -07:00
2019-12-11 09:12:38 +01:00
2019-11-12 11:43:29 -05:00
2020-01-27 14:35:32 +01:00
2020-01-23 12:37:18 +00:00
2019-05-14 19:52:50 -07:00
2020-02-04 03:05:26 +00:00
2020-02-04 03:05:26 +00:00
2019-06-12 20:27:13 +02:00
2019-11-26 10:26:26 +01:00
2020-01-23 00:35:50 +01:00
2019-10-09 19:33:43 -07:00
2019-12-03 11:20:37 +01:00
2019-09-05 19:52:33 -06:00
2020-01-27 11:09:31 +01:00
2020-01-17 16:48:07 -08:00
2020-01-18 09:19:18 -05:00
2020-01-13 21:48:42 +01:00
2019-11-20 09:40:10 +01:00
2019-12-01 12:59:06 -08:00
2019-09-05 11:40:54 +02:00
2019-07-05 21:34:50 +02:00
2019-06-26 13:19:46 -07:00
2019-10-04 12:31:46 -07:00
2019-10-15 13:34:25 +02:00
2019-11-11 09:02:56 +01:00
2019-06-10 13:00:24 +02:00
2019-12-04 19:44:14 -08:00
2020-01-31 17:33:54 +00:00
2020-02-20 21:17:24 +01:00
2019-12-11 09:12:38 +01:00
2019-09-02 11:43:54 +01:00
2019-09-05 12:32:05 +02:00
2020-02-04 07:24:48 +00:00
2019-12-09 10:55:03 +01:00
2019-08-14 15:30:35 +02:00
2019-08-08 09:09:25 +02:00
2019-11-14 19:06:47 -08:00
2020-01-15 10:54:33 -05:00
2020-01-14 12:20:48 +01:00
2019-06-13 09:02:33 -04:00
2019-12-11 16:37:02 +08:00
2019-11-13 19:09:47 +08:00
2020-01-16 17:09:18 +01:00
2020-01-15 16:30:28 +00:00
2020-01-29 17:00:02 -06:00
2019-07-16 19:23:25 -07:00
2019-12-06 10:47:28 +01:00
2019-06-15 12:25:49 +02:00
2019-05-14 19:52:48 -07:00
2020-01-13 18:16:43 -08:00
2020-01-10 14:00:58 -08:00
2020-01-24 10:24:31 -08:00
2020-01-24 10:24:31 -08:00
2019-11-14 13:07:48 +08:00
2019-10-10 14:55:24 -07:00
2020-02-16 19:50:02 -08:00
2019-05-16 15:51:55 -07:00
2020-02-04 03:05:24 +00:00
2019-11-13 12:15:34 -08:00
2020-01-13 18:31:48 -08:00
2020-02-04 03:05:26 +00:00
2019-11-13 00:33:21 +11:00
2019-08-30 07:27:17 -07:00
2019-08-01 20:51:22 +02:00
2019-07-31 19:03:35 +02:00
2020-02-21 11:22:15 -08:00
2020-01-14 12:20:48 +01:00
2019-11-14 12:20:02 +08:00
2019-05-15 17:35:54 +01:00
2020-01-17 22:33:37 -05:00