[Unionfs] unionfs 2.5.1 (for 2.6.29-rc2) has problems on Linux 2.6.30-rc8

[Erez Zadok]

In message <4A281076.8030207 at san.rr.com>, Paul Bender writes:
> In MiniMyth, I tried using the latest unionfs patch (2.5.1 for 
> 2.6.29-rc2) with the latest stable kernel prepatch (2.6.30-rc8) in 
> preparation for kernel 2.6.30. Doing so resulted in the following 
> warning in /var/log/messages.
> 
> Registering unionfs 2.5.1 (for 2.6.29-rc2) 

Yes, it's a "harmless" warning (annoying, and turns off lockdep).  I fixed
it and plan to release rsn.

Cheers,
Erez.

> ------------[ cut here ]------------ 
> 
> WARNING: at fs/namei.c:1252 lookup_one_len+0x39/0xb5() 
> 
> Hardware name: System Product Name 
> 
> Modules linked in: unionfs 
> 
> Pid: 499, comm: mkdir Not tainted 2.6.30-rc8 #1 
> 
> Call Trace: 
> 
> [<c0125115>] ? warn_slowpath_common+0x6b/0x90 
> 
> [<c0125154>] ? warn_slowpath_null+0x1a/0x2e 
> 
> [<c017c8ad>] ? lookup_one_len+0x39/0xb5 
> 
> [<f82fd216>] ? alloc_whname+0x44/0x5c [unionfs] 
> 
> [<f82fd467>] ? lookup_whiteout+0x44/0xae [unionfs] 
> 
> [<f82fa5d5>] ? unionfs_lookup_full+0x139/0x66e [unionfs] 
> 
> [<c015e7f7>] ? __krealloc+0x3f/0x74 
> 
> [<f82f47c6>] ? unionfs_lookup+0x86/0x133 [unionfs] 
> 
> [<c017ba86>] ? __lookup_hash+0xcf/0xfc 
> 
> [<c017bb50>] ? lookup_create+0x47/0x8f 
> 
> [<c017ddde>] ? sys_mkdirat+0x43/0xdb
> [<c0117f88>] ? do_page_fault+0x23e/0x25f
> [<c017de93>] ? sys_mkdir+0x1d/0x33
> [<c0102d5c>] ? syscall_call+0x7/0xb 
> 
> ---[ end trace 6eb694aaf301fb57 ]---
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