Name
vmtruncate —
unmap mappings “freed” by truncate syscall
Synopsis
int vmtruncate
(struct inode * inode, loff_t offset);
Arguments
- inode
inode of the file used
- offset
file offset to start truncating
Description
NOTE! We have to be ready to update the memory sharing
between the file and the memory map for a potential last
incomplete page. Ugly, but necessary.