On Sat, 2007-07-07 at 20:25 +0200, Jan Engelhardt wrote:
> On Jul 5 2007 15:43, Dave Hansen wrote:
>
> >@@ -1911,13 +1911,27 @@ asmlinkage long sys_mknodat(int dfd, con
> > error = do_path_lookup(dfd, tmp, LOOKUP_PARENT, &nd);
> > if (error)
> > goto out;
> >+
> > dentry = lookup_create(&nd, 0);
> > error = PTR_ERR(dentry);
> >+ if (error)
> >+ goto out_unlock;
> >
> > if (!IS_POSIXACL(nd.dentry->d_inode))
> > mode &= ~current->fs->umask;
> >- if (!IS_ERR(dentry)) {
> >- switch (mode & S_IFMT) {
> >+ if (S_ISDIR(mode)) {
> >+ error = -EPERM;
> >+ goto out_dput;
>
> Hm, I wonder why mknod(,S_IFDIR,) returns -EPERM rather than -EINVAL like the
> others? It is a bit misleading; EPERM usually means root could do it
> somehow (unless the kernel is really pedantic).
> IMHO this if(S_ISDIR) should go.
I'd prefer to leave that fight for another day. :) It'd be easy to fix
up later.
> >+ if (!S_ISREG(mode) && !S_ISCHR(mode) && !S_ISBLK(mode) &&
> >+ !S_ISFIFO(mode) && !S_ISSOCK(mode) && (mode != 0)) {
>
> If you align the two &&s (^) you can also align ^ the others :)
Good point. I'll fix it up.
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