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SubjectRe: [PATCH 01/22] ufs: drop vmtruncate
> @@ -536,8 +536,9 @@ static int ufs_write_begin(struct file *file, struct address_space *mapping,
> ufs_getfrag_block);
> if (unlikely(ret)) {
> loff_t isize = mapping->host->i_size;
> - if (pos + len > isize)
> - vmtruncate(mapping->host, isize);
> + if ((pos + len > isize) &&
> + inode_newsize_ok(mapping->host, isize) == 0)
> + truncate_setsize(mapping->host, isize);

write_begin always truncates down, so there should be no call to
inode_newsize_ok here.


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