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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
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Michael Ellerman
40b88644dd
Now that powerpc no longer uses arch_unmap() to handle VDSO unmapping, there are no meaningful implementions left. Drop support for it entirely, and update comments which refer to it. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Michael Ellerman <[email protected]> Suggested-by: Linus Torvalds <[email protected]> Acked-by: David Hildenbrand <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Reviewed-by: Liam R. Howlett <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Jeff Xu <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Pedro Falcato <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
27 lines
641 B
C
27 lines
641 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Define generic no-op hooks for arch_dup_mmap and arch_exit_mmap
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* to be included in asm-FOO/mmu_context.h for any arch FOO which
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* doesn't need to hook these.
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*/
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#ifndef _ASM_GENERIC_MM_HOOKS_H
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#define _ASM_GENERIC_MM_HOOKS_H
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static inline int arch_dup_mmap(struct mm_struct *oldmm,
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struct mm_struct *mm)
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{
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return 0;
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}
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static inline void arch_exit_mmap(struct mm_struct *mm)
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{
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}
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static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
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bool write, bool execute, bool foreign)
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{
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/* by default, allow everything */
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return true;
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}
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#endif /* _ASM_GENERIC_MM_HOOKS_H */
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