INVALIDATE_MAPPING_P(9) Memory Management in Linux INVALIDATE_MAPPING_P(9)NAMEinvalidate_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.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 INVALIDATE_MAPPING_P(9)