50 static int madvise_need_mmap_write(int behavior)  in madvise_need_mmap_write()  argument
52 	switch (behavior) {  in madvise_need_mmap_write()
832 					    int behavior)  in madvise_dontneed_free_valid_vma()  argument
837 		if (behavior != MADV_DONTNEED_LOCKED)  in madvise_dontneed_free_valid_vma()
843 	if (behavior != MADV_DONTNEED && behavior != MADV_DONTNEED_LOCKED)  in madvise_dontneed_free_valid_vma()
862 				  int behavior)  in madvise_dontneed_free()  argument
867 	if (!madvise_dontneed_free_valid_vma(vma, start, &end, behavior))  in madvise_dontneed_free()
885 						     behavior))  in madvise_dontneed_free()
914 	if (behavior == MADV_DONTNEED || behavior == MADV_DONTNEED_LOCKED)  in madvise_dontneed_free()
916 	else if (behavior == MADV_FREE)  in madvise_dontneed_free()
925 			     int behavior)  in madvise_populate()  argument
927 	const bool write = behavior == MADV_POPULATE_WRITE;  in madvise_populate()
1016  * Apply an madvise behavior to a region of a vma.  madvise_update_vma
1018  * behavior.
1023 				unsigned long behavior)  in madvise_vma_behavior()  argument
1029 	switch (behavior) {  in madvise_vma_behavior()
1041 		return madvise_dontneed_free(vma, prev, start, end, behavior);  in madvise_vma_behavior()
1044 		return madvise_populate(vma, prev, start, end, behavior);  in madvise_vma_behavior()
1081 		error = ksm_madvise(vma, start, end, behavior, &new_flags);  in madvise_vma_behavior()
1087 		error = hugepage_madvise(vma, &new_flags, behavior);  in madvise_vma_behavior()
1115 static int madvise_inject_error(int behavior,  in madvise_inject_error()  argument
1141 		if (behavior == MADV_SOFT_OFFLINE) {  in madvise_inject_error()
1162 madvise_behavior_valid(int behavior)  in madvise_behavior_valid()  argument
1164 	switch (behavior) {  in madvise_behavior_valid()
1203 static bool process_madvise_behavior_valid(int behavior)  in process_madvise_behavior_valid()  argument
1205 	switch (behavior) {  in process_madvise_behavior_valid()
1341  * behavior values:
1342  *  MADV_NORMAL - the default behavior is to read clusters.  This
1393  *		"behavior" is not a valid value, or application
1403 int do_madvise(struct mm_struct *mm, unsigned long start, size_t len_in, int behavior)  in do_madvise()  argument
1411 	if (!madvise_behavior_valid(behavior))  in do_madvise()
1430 	if (behavior == MADV_HWPOISON || behavior == MADV_SOFT_OFFLINE)  in do_madvise()
1431 		return madvise_inject_error(behavior, start, start + len_in);  in do_madvise()
1434 	write = madvise_need_mmap_write(behavior);  in do_madvise()
1446 	error = madvise_walk_vmas(mm, start, end, behavior,  in do_madvise()
1457 SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)  in SYSCALL_DEFINE3()  argument
1459 	return do_madvise(current->mm, start, len_in, behavior);  in SYSCALL_DEFINE3()
1463 		size_t, vlen, int, behavior, unsigned int, flags)  in SYSCALL_DEFINE5()  argument
1489 	if (!process_madvise_behavior_valid(behavior)) {  in SYSCALL_DEFINE5()
1514 					iter_iov_len(&iter), behavior);  in SYSCALL_DEFINE5()