tree f4e54841dae0ecf1324a3002bc540f8b6ba441d5
parent 052497553e5dedc04c43800820c1d5788201cc71
author Erez Zadok <ezk@fsl.cs.sunysb.edu> 1305955199 -0400
committer Linus Torvalds <torvalds@linux-foundation.org> 1305961936 -0700

VFS: move BUG_ON test for symlink nd->depth after current->link_count test

This solves a serious VFS-level bug in nested_symlink (which was
rewritten from do_follow_link), and follows the order of depth tests
that existed before.

The bug triggers a BUG_ON in fs/namei.c:1381, when running racer with
symlink and rename ops.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Acked-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>