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kill spurious reference to vmtruncate

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Lots of filesystems calls vmtruncate despite not implementing the old
->truncate method.  Switch them to use simple_setsize and add some
comments about the truncate code where it seems fitting.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Nick Piggin <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
[email protected] 2010-05-27 01:05:34 +10:00 • committed by Al Viro
commit 15c6fd9786
10 changed files with 37 additions and 22 deletions
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10
fs/ufs/truncate.c
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@ -501,12 +501,10 @@ out:
return err;
}
/*
* We don't define our `inode->i_op->truncate', and call it here,
* because of:
* - there is no way to know old size
* - there is no way inform user about error, if it happens in `truncate'
* TODO:
* - truncate case should use proper ordering instead of using
* simple_setsize
*/
int ufs_setattr(struct dentry *dentry, struct iattr *attr)
{
@ -530,7 +528,7 @@ int ufs_setattr(struct dentry *dentry, struct iattr *attr)
if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
loff_t old_i_size = inode->i_size;
error = vmtruncate(inode, attr->ia_size);
error = simple_setsize(inode, attr->ia_size);
if (error)
return error;
error = ufs_truncate(inode, old_i_size);