linux-kernel - Re: + move-magic-numbers-into-magich.patch added to -mm tree

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Date:	Mon, 29 Jun 2009 18:31:16 -0700
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	linux-kernel@...r.kernel.org
CC:	mm-commits@...r.kernel.org, dank@...fd.net, davem@...emloft.net,
	penberg@...helsinki.fi, viro@...iv.linux.org.uk
Subject: Re: + move-magic-numbers-into-magich.patch added to -mm tree

akpm@...ux-foundation.org wrote:
> The patch titled
>      Move magic numbers into magic.h
> has been added to the -mm tree.  Its filename is
>      move-magic-numbers-into-magich.patch
>
> Before you just go and hit "reply", please:
>    a) Consider who else should be cc'ed
>    b) Prefer to cc a suitable mailing list as well
>    c) Ideally: find the original patch on the mailing list and do a
>       reply-to-all to that, adding suitable additional cc's
>
> *** Remember to use Documentation/SubmitChecklist when testing your code ***
>
> See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
> out what to do about this
>
> The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
>
> ------------------------------------------------------
> Subject: Move magic numbers into magic.h
> From: Nick Black <dank@...fd.net>
>
> Move various magic-number definitions into magic.h.
>
> Signed-off-by: Nick Black <dank@...fd.net>
> Acked-by: Pekka Enberg <penberg@...helsinki.fi>
> Cc: Al Viro <viro@...iv.linux.org.uk>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Casey Schaufler <casey@...aufler-ca.com>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
>   

Acked-by: Casey Schaufler <casey@...aufler-ca.com>

Thank you.
> ---
>
>  fs/devpts/inode.c          |    3 +--
>  include/linux/magic.h      |    4 ++++
>  net/socket.c               |    3 +--
>  security/smack/smack_lsm.c |    8 +-------
>  4 files changed, 7 insertions(+), 11 deletions(-)
>
> diff -puN fs/devpts/inode.c~move-magic-numbers-into-magich fs/devpts/inode.c
> --- a/fs/devpts/inode.c~move-magic-numbers-into-magich
> +++ a/fs/devpts/inode.c
> @@ -18,14 +18,13 @@
>  #include <linux/mount.h>
>  #include <linux/tty.h>
>  #include <linux/mutex.h>
> +#include <linux/magic.h>
>  #include <linux/idr.h>
>  #include <linux/devpts_fs.h>
>  #include <linux/parser.h>
>  #include <linux/fsnotify.h>
>  #include <linux/seq_file.h>
>  
> -#define DEVPTS_SUPER_MAGIC 0x1cd1
> -
>  #define DEVPTS_DEFAULT_MODE 0600
>  /*
>   * ptmx is a new node in /dev/pts and will be unused in legacy (single-
> diff -puN include/linux/magic.h~move-magic-numbers-into-magich include/linux/magic.h
> --- a/include/linux/magic.h~move-magic-numbers-into-magich
> +++ a/include/linux/magic.h
> @@ -53,4 +53,8 @@
>  #define INOTIFYFS_SUPER_MAGIC	0x2BAD1DEA
>  
>  #define STACK_END_MAGIC		0x57AC6E9D
> +
> +#define DEVPTS_SUPER_MAGIC	0x1cd1
> +#define SOCKFS_MAGIC		0x534F434B
> +
>  #endif /* __LINUX_MAGIC_H__ */
> diff -puN net/socket.c~move-magic-numbers-into-magich net/socket.c
> --- a/net/socket.c~move-magic-numbers-into-magich
> +++ a/net/socket.c
> @@ -86,6 +86,7 @@
>  #include <linux/audit.h>
>  #include <linux/wireless.h>
>  #include <linux/nsproxy.h>
> +#include <linux/magic.h>
>  
>  #include <asm/uaccess.h>
>  #include <asm/unistd.h>
> @@ -235,8 +236,6 @@ int move_addr_to_user(struct sockaddr *k
>  	return __put_user(klen, ulen);
>  }
>  
> -#define SOCKFS_MAGIC 0x534F434B
> -
>  static struct kmem_cache *sock_inode_cachep __read_mostly;
>  
>  static struct inode *sock_alloc_inode(struct super_block *sb)
> diff -puN security/smack/smack_lsm.c~move-magic-numbers-into-magich security/smack/smack_lsm.c
> --- a/security/smack/smack_lsm.c~move-magic-numbers-into-magich
> +++ a/security/smack/smack_lsm.c
> @@ -30,17 +30,11 @@
>  #include <net/netlabel.h>
>  #include <net/cipso_ipv4.h>
>  #include <linux/audit.h>
> +#include <linux/magic.h>
>  #include "smack.h"
>  
>  #define task_security(task)	(task_cred_xxx((task), security))
>  
> -/*
> - * I hope these are the hokeyist lines of code in the module. Casey.
> - */
> -#define DEVPTS_SUPER_MAGIC	0x1cd1
> -#define SOCKFS_MAGIC		0x534F434B
> -#define TMPFS_MAGIC		0x01021994
> -
>  /**
>   * smk_fetch - Fetch the smack label from a file.
>   * @ip: a pointer to the inode
> _
>
> Patches currently in -mm which might be from dank@...fd.net are
>
> move-magic-numbers-into-magich.patch
>
> --
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>
>   
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