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Laurent Dufour
4abad2ca4a
Some architectures would like to be triggered when a memory area is moved through the mremap system call. This patch introduces a new arch_remap() mm hook which is placed in the path of mremap, and is called before the old area is unmapped (and the arch_unmap() hook is called). Signed-off-by: Laurent Dufour <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Pavel Emelyanov <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
26 lines
679 B
C
26 lines
679 B
C
/*
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* Generic mm no-op hooks.
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*
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* Copyright (C) 2015, IBM Corporation
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* Author: Laurent Dufour <[email protected]>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _LINUX_MM_ARCH_HOOKS_H
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#define _LINUX_MM_ARCH_HOOKS_H
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#include <asm/mm-arch-hooks.h>
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#ifndef arch_remap
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static inline void arch_remap(struct mm_struct *mm,
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unsigned long old_start, unsigned long old_end,
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unsigned long new_start, unsigned long new_end)
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{
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}
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#define arch_remap arch_remap
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#endif
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#endif /* _LINUX_MM_ARCH_HOOKS_H */
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