diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2021-01-25 18:26:50 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-02-17 16:12:42 +0300 |
| commit | ef72661e28c64ad610f89acc2832ec67b27ba438 (patch) | |
| tree | a68805ca80c0cc424cda83ae3100fd016f7a8793 /include | |
| parent | 73f44fe19d359635a607e8e8daa0da4001c1cfc2 (diff) | |
| download | linux-ef72661e28c64ad610f89acc2832ec67b27ba438.tar.xz | |
sched: Harden PREEMPT_DYNAMIC
Use the new EXPORT_STATIC_CALL_TRAMP() / static_call_mod() to unexport
the static_call_key for the PREEMPT_DYNAMIC calls such that modules
can no longer update these calls.
Having modules change/hi-jack the preemption calls would be horrible.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kernel.h | 2 | ||||
| -rw-r--r-- | include/linux/sched.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index cfd3d349f905..5b7ed6dc99ac 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -93,7 +93,7 @@ DECLARE_STATIC_CALL(might_resched, __cond_resched); static __always_inline void might_resched(void) { - static_call(might_resched)(); + static_call_mod(might_resched)(); } #else diff --git a/include/linux/sched.h b/include/linux/sched.h index 2f35594b8b53..4d568288abf9 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1880,7 +1880,7 @@ DECLARE_STATIC_CALL(cond_resched, __cond_resched); static __always_inline int _cond_resched(void) { - return static_call(cond_resched)(); + return static_call_mod(cond_resched)(); } #else |