linux/kernel/sched
Kees Cook 8e5bad7dcc sched: Introduce struct balance_callback to avoid CFI mismatches
Introduce distinct struct balance_callback instead of performing function
pointer casting which will trip CFI. Avoids warnings as found by Clang's
future -Wcast-function-type-strict option:

In file included from kernel/sched/core.c:84:
kernel/sched/sched.h:1755:15: warning: cast from 'void (*)(struct rq *)' to 'void (*)(struct callback_head *)' converts to incompatible function type [-Wcast-function-type-strict]
        head->func = (void (*)(struct callback_head *))func;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

No binary differences result from this change.

This patch is a cleanup based on Brad Spengler/PaX Team's modifications
to sched code in their last public patch of grsecurity/PaX based on my
understanding of the code. Changes or omissions from the original code
are mine and don't reflect the original grsecurity/PaX code.

Reported-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://github.com/ClangBuiltLinux/linux/issues/1724
Link: https://lkml.kernel.org/r/20221008000758.2957718-1-keescook@chromium.org
2022-10-17 16:41:25 +02:00
..
autogroup.c sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE() 2022-08-12 11:25:10 +02:00
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: Fix missing prototype warnings 2022-05-01 10:03:43 +02:00
build_utility.c sched: Fix missing prototype warnings 2022-05-01 10:03:43 +02:00
clock.c sched/clock: Use try_cmpxchg64 in sched_clock_{local,remote} 2022-05-19 23:46:09 +02:00
completion.c sched/completion: Add wait_for_completion_state() 2022-09-07 21:53:49 +02:00
core_sched.c sched: Rename task_running() to task_on_cpu() 2022-09-07 21:53:47 +02:00
core.c sched: Introduce struct balance_callback to avoid CFI mismatches 2022-10-17 16:41:25 +02:00
cpuacct.c Merge branch 'sched/fast-headers' into sched/core 2022-03-15 09:05:05 +01:00
cpudeadline.c sched/core: Introduce sched_asym_cpucap_active() 2022-08-02 12:32:45 +02:00
cpudeadline.h
cpufreq_schedutil.c cpufreq: schedutil: Move max CPU capacity to sugov_policy 2022-08-23 20:03:33 +02:00
cpufreq.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
cpupri.c sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE() 2022-08-12 11:25:10 +02:00
cpupri.h sched/cpupri: Add CPUPRI_HIGHER 2020-10-29 11:00:30 +01:00
cputime.c sched/core: add forced idle accounting for cgroups 2022-07-04 09:23:07 +02:00
deadline.c sched: Introduce struct balance_callback to avoid CFI mismatches 2022-10-17 16:41:25 +02:00
debug.c - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
fair.c - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
features.h sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg 2022-06-28 09:08:30 +02:00
idle.c context_tracking: Take idle eqs entrypoints over RCU 2022-07-05 13:32:16 -07:00
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
Makefile sched/headers: Introduce kernel/sched/build_policy.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/fair: Decay task PELT values during wakeup migration 2022-06-28 09:17:46 +02:00
psi.c PSI updates for v6.1: 2022-10-14 13:03:00 -07:00
rt.c sched: Introduce struct balance_callback to avoid CFI mismatches 2022-10-17 16:41:25 +02:00
sched-pelt.h sched/fair: Fix "runnable_avg_yN_inv" not used warnings 2019-06-17 12:15:58 +02:00
sched.h sched: Introduce struct balance_callback to avoid CFI mismatches 2022-10-17 16:41:25 +02:00
smp.h smp: Rename flush_smp_call_function_from_idle() 2022-05-01 10:03:43 +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/psi: Add PSI_IRQ to track IRQ/SOFTIRQ pressure 2022-09-09 11:08:32 +02:00
stop_task.c sched: Add update_current_exec_runtime helper 2022-08-27 00:05:35 +02:00
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 sched/numa: Adjust imb_numa_nr to a better approximation of memory channels 2022-06-13 10:30:00 +02:00
wait_bit.c wait_on_bit: add an acquire memory barrier 2022-08-26 09:30:25 -07:00
wait.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00