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INVALIDATE_MAPPING_P(9)	  Memory Management in Linux   INVALIDATE_MAPPING_P(9)

NAME
       invalidate_mapping_pages - Invalidate all the unlocked pages of one
       inode

SYNOPSIS
       unsigned long invalidate_mapping_pages(struct address_space * mapping,
					      pgoff_t start, pgoff_t end);

ARGUMENTS
       mapping
	   the address_space which holds the pages to invalidate

       start
	   the offset ´from´ which to invalidate

       end
	   the offset ´to´ which to invalidate (inclusive)

DESCRIPTION
       This function only removes the unlocked pages, if you want to remove
       all the pages of one inode, you must call truncate_inode_pages.

       invalidate_mapping_pages will not block on IO activity. It will not
       invalidate pages which are dirty, locked, under writeback or mapped
       into pagetables.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       INVALIDATE_MAPPING_P(9)

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