56 static int madvise_need_mmap_write(int behavior)  in madvise_need_mmap_write()  argument
58 	switch (behavior) {  in madvise_need_mmap_write()
866 					    int behavior)  in madvise_dontneed_free_valid_vma()  argument
871 		if (behavior != MADV_DONTNEED_LOCKED)  in madvise_dontneed_free_valid_vma()
877 	if (behavior != MADV_DONTNEED && behavior != MADV_DONTNEED_LOCKED)  in madvise_dontneed_free_valid_vma()
896 				  int behavior)  in madvise_dontneed_free()  argument
901 	if (!madvise_dontneed_free_valid_vma(vma, start, &end, behavior))  in madvise_dontneed_free()
919 						     behavior))  in madvise_dontneed_free()
948 	if (behavior == MADV_DONTNEED || behavior == MADV_DONTNEED_LOCKED)  in madvise_dontneed_free()
950 	else if (behavior == MADV_FREE)  in madvise_dontneed_free()
957 		unsigned long end, int behavior)  in madvise_populate()  argument
959 	const bool write = behavior == MADV_POPULATE_WRITE;  in madvise_populate()
1251  * Apply an madvise behavior to a region of a vma.  madvise_update_vma
1253  * behavior.
1258 				unsigned long behavior)  in madvise_vma_behavior()  argument
1264 	if (unlikely(!can_modify_vma_madv(vma, behavior)))  in madvise_vma_behavior()
1267 	switch (behavior) {  in madvise_vma_behavior()
1279 		return madvise_dontneed_free(vma, prev, start, end, behavior);  in madvise_vma_behavior()
1319 		error = ksm_madvise(vma, start, end, behavior, &new_flags);  in madvise_vma_behavior()
1325 		error = hugepage_madvise(vma, &new_flags, behavior);  in madvise_vma_behavior()
1357 static int madvise_inject_error(int behavior,  in madvise_inject_error()  argument
1383 		if (behavior == MADV_SOFT_OFFLINE) {  in madvise_inject_error()
1404 madvise_behavior_valid(int behavior)  in madvise_behavior_valid()  argument
1406 	switch (behavior) {  in madvise_behavior_valid()
1447 /* Can we invoke process_madvise() on a remote mm for the specified behavior? */
1448 static bool process_madvise_remote_valid(int behavior)  in process_madvise_remote_valid()  argument
1450 	switch (behavior) {  in process_madvise_remote_valid()
1586  * behavior values:
1587  *  MADV_NORMAL - the default behavior is to read clusters.  This
1638  *		"behavior" is not a valid value, or application
1649 int do_madvise(struct mm_struct *mm, unsigned long start, size_t len_in, int behavior)  in do_madvise()  argument
1657 	if (!madvise_behavior_valid(behavior))  in do_madvise()
1676 	if (behavior == MADV_HWPOISON || behavior == MADV_SOFT_OFFLINE)  in do_madvise()
1677 		return madvise_inject_error(behavior, start, start + len_in);  in do_madvise()
1680 	write = madvise_need_mmap_write(behavior);  in do_madvise()
1692 	switch (behavior) {  in do_madvise()
1695 		error = madvise_populate(mm, start, end, behavior);  in do_madvise()
1698 		error = madvise_walk_vmas(mm, start, end, behavior,  in do_madvise()
1712 SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)  in SYSCALL_DEFINE3()  argument
1714 	return do_madvise(current->mm, start, len_in, behavior);  in SYSCALL_DEFINE3()
1719 			      int behavior)  in vector_madvise()  argument
1728 				 iter_iov_len(iter), behavior);  in vector_madvise()
1757 		size_t, vlen, int, behavior, unsigned int, flags)  in SYSCALL_DEFINE5()  argument
1793 	if (mm != current->mm && !process_madvise_remote_valid(behavior)) {  in SYSCALL_DEFINE5()
1808 	ret = vector_madvise(mm, &iter, behavior);  in SYSCALL_DEFINE5()