1TRUNCATE_INODE_PAGES(9)   Memory Management in Linux   TRUNCATE_INODE_PAGES(9)
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NAME

6       truncate_inode_pages - truncate *all* the pages from an offset
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SYNOPSIS

9       void truncate_inode_pages(struct address_space * mapping,
10                                 loff_t lstart);
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ARGUMENTS

13       mapping
14           mapping to truncate
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16       lstart
17           offset from which to truncate
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DESCRIPTION

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

23       When this function returns, there can be a page in the process of
24       deletion (inside __delete_from_page_cache) in the specified range. Thus
25       mapping->nrpages can be non-zero when this function returns even after
26       truncation of the whole mapping.
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29Kernel Hackers Manual 3.10         June 2019           TRUNCATE_INODE_PAGES(9)
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