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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-04 16:11:49 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-04 16:11:49 -0700 |
| commit | 664b0bae0b87f69bc9deb098f5e0158b9cf18e04 (patch) | |
| tree | d5841492b396ff483723b9339c7c11dc33b67688 /include/linux/sched/task.h | |
| parent | 567b9b549cfa1cbc202762ae97b5385c29ade1e3 (diff) | |
| parent | 04bb1719c4de94700056241d4c0fe3c1413f5aff (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 4.17 merge window.
Diffstat (limited to 'include/linux/sched/task.h')
| -rw-r--r-- | include/linux/sched/task.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 05b8650f06f5..5be31eb7b266 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -104,6 +104,20 @@ extern int arch_task_struct_size __read_mostly; # define arch_task_struct_size (sizeof(struct task_struct)) #endif +#ifndef CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST +/* + * If an architecture has not declared a thread_struct whitelist we + * must assume something there may need to be copied to userspace. + */ +static inline void arch_thread_struct_whitelist(unsigned long *offset, + unsigned long *size) +{ + *offset = 0; + /* Handle dynamically sized thread_struct. */ + *size = arch_task_struct_size - offsetof(struct task_struct, thread); +} +#endif + #ifdef CONFIG_VMAP_STACK static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t) { |