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always call inode_change_ok early in ->setattr

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Make sure we call inode_change_ok before doing any changes in ->setattr,
and make sure to call it even if our fs wants to ignore normal UNIX
permissions, but use the ATTR_FORCE to skip those.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2010-06-04 11:30:03 +02:00
committed by Al Viro
parent 1025774ce4
commit db78b877f7
6 changed files with 48 additions and 48 deletions
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8
fs/logfs/file.c
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@@ -232,16 +232,16 @@ static int logfs_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = dentry->d_inode;
int err = 0;
err = inode_change_ok(inode, attr);
if (err)
return err;
if (attr->ia_valid & ATTR_SIZE) {
err = logfs_truncate(inode, attr->ia_size);
if (err)
return err;
}
err = inode_change_ok(inode, attr);
if (err)
return err;
setattr_copy(inode, attr);
mark_inode_dirty(inode);
return 0;