invalidate_mapping_pages — Invalidate all the unlocked pages of one inode


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


struct address_space * mapping

the address_space which holds the pages to invalidate

pgoff_t start

the offset 'from' which to invalidate

pgoff_t end

the offset 'to' which to invalidate (inclusive)


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.