TRUNCATE_INODE_PAGES(9)             Memory Management in Linux            TRUNCATE_INODE_PAGES(9)



NAME
       truncate_inode_pages - truncate *all* the pages from an offset

SYNOPSIS
       void truncate_inode_pages(struct address_space * mapping, loff_t lstart);

ARGUMENTS
       mapping
           mapping to truncate

       lstart
           offset from which to truncate

DESCRIPTION
       Called under (and serialised by) inode->i_mutex.

NOTE
       When this function returns, there can be a page in the process of deletion (inside
       __delete_from_page_cache) in the specified range. Thus mapping->nrpages can be non-zero
       when this function returns even after truncation of the whole mapping.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   TRUNCATE_INODE_PAGES(9)