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HWPOISON: Refactor truncate to allow direct truncating of page v2

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Extract out truncate_inode_page() out of the truncate path so that
it can be used by memory-failure.c

[AK: description, headers, fix typos]
v2: Some white space changes from Fengguang Wu

Signed-off-by: Andi Kleen <ak@linux.intel.com>
This commit is contained in:
Nick Piggin
2009-09-16 11:50:12 +02:00
committed by Andi Kleen
parent 2a7684a23e
commit 750b4987b0
2 changed files with 17 additions and 14 deletions
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2
include/linux/mm.h
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@@ -794,6 +794,8 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
extern int vmtruncate(struct inode * inode, loff_t offset);
extern int vmtruncate_range(struct inode * inode, loff_t offset, loff_t end);
int truncate_inode_page(struct address_space *mapping, struct page *page);
#ifdef CONFIG_MMU
extern int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, unsigned int flags);