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

6       vmtruncate - unmap mappings “freed” by truncate syscall
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SYNOPSIS

9       int vmtruncate(struct inode * inode, loff_t offset);
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ARGUMENTS

12       inode
13           inode of the file used
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15       offset
16           file offset to start truncating
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DESCRIPTION

19       NOTE! We have to be ready to update the memory sharing between the file
20       and the memory map for a potential last incomplete page. Ugly, but
21       necessary.
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23       This function is deprecated and simple_setsize or truncate_pagecache
24       should be used instead.
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27Kernel Hackers Manual 2.6.       November 2011                   VMTRUNCATE(9)
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