1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Architecture specific mm hooks
4 *
5 * Copyright (C) 2015, IBM Corporation
6 * Author: Laurent Dufour <ldufour@linux.vnet.ibm.com>
7 */
8
9 #ifndef _ASM_POWERPC_MM_ARCH_HOOKS_H
10 #define _ASM_POWERPC_MM_ARCH_HOOKS_H
11
12 static inline void arch_remap(struct mm_struct *mm,
13 unsigned long old_start, unsigned long old_end,
14 unsigned long new_start, unsigned long new_end)
15 {
16 /*
17 * mremap() doesn't allow moving multiple vmas so we can limit the
18 * check to old_start == vdso_base.
19 */
20 if (old_start == mm->context.vdso_base)
21 mm->context.vdso_base = new_start;
22 }
23 #define arch_remap arch_remap
24
25 #endif /* _ASM_POWERPC_MM_ARCH_HOOKS_H */