invalidate_mapping_pages (9) Linux Manual Page
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.