Delyan Kratunov 9c2136be08 sched/tracing: Append prev_state to tp args instead ... Commit fa2c3254d7 (sched/tracing: Don't re-read p->state when emitting sched_switch event, 2022-01-20) added a new prev_state argument to the sched_switch tracepoint, before the prev task_struct pointer. This reordering of arguments broke BPF programs that use the raw tracepoint (e.g. tp_btf programs). The type of the second argument has changed and existing programs that assume a task_struct* argument (e.g. for bpf_task_storage access) will now fail to verify. If we instead append the new argument to the end, all existing programs would continue to work and can conditionally extract the prev_state argument on supported kernel versions. Fixes: fa2c3254d7 (sched/tracing: Don't re-read p->state when emitting sched_switch event, 2022-01-20) Signed-off-by: Delyan Kratunov <delyank@fb.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lkml.kernel.org/r/c8a6930dfdd58a4a5755fc01732675472979732b.camel@fb.com		2022-05-12 00:37:11 +02:00
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Makefile	sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
autogroup.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
autogroup.h	sched/headers: Add header guard to kernel/sched/stats.h and kernel/sched/autogroup.h	2022-02-23 08:22:00 +01:00
build_policy.c	sched/headers: Reorganize, clean up and optimize kernel/sched/sched.h dependencies	2022-02-23 10:58:34 +01:00
build_utility.c	sched/headers: Reorganize, clean up and optimize kernel/sched/sched.h dependencies	2022-02-23 10:58:34 +01:00
clock.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
completion.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
core.c	sched/tracing: Append prev_state to tp args instead	2022-05-12 00:37:11 +02:00
core_sched.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
cpuacct.c	Merge branch 'sched/fast-headers' into sched/core	2022-03-15 09:05:05 +01:00
cpudeadline.c	sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
cpudeadline.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpufreq.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
cpufreq_schedutil.c	Changes in this cycle were:	2022-03-22 14:39:12 -07:00
cpupri.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
cpupri.h	sched/cpupri: Add CPUPRI_HIGHER	2020-10-29 11:00:30 +01:00
cputime.c	sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
deadline.c	Merge branch 'sched/fast-headers' into sched/core	2022-03-15 09:05:05 +01:00
debug.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
fair.c	sched/pelt: Fix attach_entity_load_avg() corner case	2022-04-19 21:15:41 +02:00
features.h	sched: Disable TTWU_QUEUE on RT	2021-10-05 15:52:12 +02:00
idle.c	sched/core: Fix forceidle balancing	2022-04-05 09:59:36 +02:00
isolation.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
loadavg.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
membarrier.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
pelt.c	sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
pelt.h	sched/pelt: Relax the sync of util_sum with util_avg	2022-01-18 12:09:58 +01:00
psi.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
rt.c	Merge branch 'sched/fast-headers' into sched/core	2022-03-15 09:05:05 +01:00
sched-pelt.h	sched/fair: Fix "runnable_avg_yN_inv" not used warnings	2019-06-17 12:15:58 +02:00
sched.h	sched/core: Fix forceidle balancing	2022-04-05 09:59:36 +02:00
smp.h	sched/headers: Split out open-coded prototypes into kernel/sched/smp.h	2020-05-28 11:03:20 +02:00
stats.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
stats.h	sched/headers: Reorganize, clean up and optimize kernel/sched/sched.h dependencies	2022-02-23 10:58:34 +01:00
stop_task.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
swait.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
topology.c	Merge branch 'sched/fast-headers' into sched/core	2022-03-15 09:05:05 +01:00
wait.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00
wait_bit.c	sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there	2022-02-23 10:58:33 +01:00