diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-09-27 09:16:28 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-04 01:01:16 +1100 |
| commit | 526a9c4a7234cccf6d900c6e82d79356f974cbfd (patch) | |
| tree | d02cd9ecb6785a4d5f41cf9e70430ca2c152a209 /arch/powerpc/include/asm/mm-arch-hooks.h | |
| parent | c1bab64360e6850ca54305d2f1902dac829c9752 (diff) | |
| download | linux-526a9c4a7234cccf6d900c6e82d79356f974cbfd.tar.bz2 | |
powerpc/vdso: Provide vdso_remap()
Provide vdso_remap() through _install_special_mapping() and
drop arch_remap().
This adds a test of the size and returns -EINVAL if the size
is not correct.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/373c66f768fa9cc8890f3b55462209a98c522326.1601197618.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/mm-arch-hooks.h')
| -rw-r--r-- | arch/powerpc/include/asm/mm-arch-hooks.h | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/arch/powerpc/include/asm/mm-arch-hooks.h b/arch/powerpc/include/asm/mm-arch-hooks.h deleted file mode 100644 index dce274be824a..000000000000 --- a/arch/powerpc/include/asm/mm-arch-hooks.h +++ /dev/null @@ -1,25 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Architecture specific mm hooks - * - * Copyright (C) 2015, IBM Corporation - * Author: Laurent Dufour <ldufour@linux.vnet.ibm.com> - */ - -#ifndef _ASM_POWERPC_MM_ARCH_HOOKS_H -#define _ASM_POWERPC_MM_ARCH_HOOKS_H - -static inline void arch_remap(struct mm_struct *mm, - unsigned long old_start, unsigned long old_end, - unsigned long new_start, unsigned long new_end) -{ - /* - * mremap() doesn't allow moving multiple vmas so we can limit the - * check to old_start == vdso_base. - */ - if (old_start == mm->context.vdso_base) - mm->context.vdso_base = new_start; -} -#define arch_remap arch_remap - -#endif /* _ASM_POWERPC_MM_ARCH_HOOKS_H */ |