linux-kernel - Re: [PATCH 11/11] ext4: add cross rename support

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Date:	Sat, 19 Apr 2014 21:08:14 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:	miklos@...redi.hu, linux-security-module@...r.kernel.org
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/11] ext4: add cross rename support

Michael Kerrisk (man-pages) wrote:
> Now that renameat2() is in 3.15, I've taken these changes.

What!? I didn't know renameat2() goes to 3.15.

But I assume that renameat2() is not accessible in 3.15, for I can see
"asmlinkage long sys_renameat2(" but don't see "#define __NR_renameat2".

  $ grep -Fr renameat include/
  include/linux/syscalls.h:asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
  include/linux/syscalls.h:asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
  include/uapi/asm-generic/unistd.h:#define __NR_renameat 38
  include/uapi/asm-generic/unistd.h:__SYSCALL(__NR_renameat, sys_renameat)
  include/asm-generic/audit_dir_write.h:__NR_renameat,
  include/net/9p/client.h:int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name,

If renameat2() is accessible in 3.15, I must consider submitting TOMOYO changes
immediately. But so far I got no response from LSM users regarding the patch
( https://lkml.org/lkml/2014/1/18/26 ) which the TOMOYO changes depend on.
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