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 2.6. November 2013 INVALIDATE_MAPPING_P(9)