arch/powerpc/include/asm/mm-arch-hooks.h

   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 */