Man page 9 : invalidate_inode_pages2_range

invalidate_inode_pages2_range - remove range of pages from an address_space

int invalidate_inode_pages2_range(struct address_space *  mapping , pgoff_t  start , pgoff_t  end );

mapping
    the address_space

start
    the page offset AqfromAq which to invalidate

end
    the page offset AqtoAq which to invalidate (inclusive)

Any pages which are found to be mapped into pagetables are unmapped prior to invalidation.

Returns -EBUSY if any pages could not be invalidated.