HWPOISON: Refactor truncate to allow direct truncating of page v2
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>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 082b68c..8cbc0aa 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -794,6 +794,8 @@
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);