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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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11
fs/fuse/dir.c
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@ -1270,11 +1270,12 @@ static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
if (!fuse_allow_task(fc, current))
return -EACCES;
if (fc->flags & FUSE_DEFAULT_PERMISSIONS) {
err = inode_change_ok(inode, attr);
if (err)
return err;
}
if (!(fc->flags & FUSE_DEFAULT_PERMISSIONS))
attr->ia_valid |= ATTR_FORCE;
err = inode_change_ok(inode, attr);
if (err)
return err;
if ((attr->ia_valid & ATTR_OPEN) && fc->atomic_o_trunc)
return 0;