linux-kernel - [RFC 1/7] Remove declaration of sighand

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Message-Id: <20061118054347.8884.36259.sendpatchset@schroedinger.engr.sgi.com>
Date:	Fri, 17 Nov 2006 21:43:47 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-mm@...ck.org, Pekka Enberg <penberg@...helsinki.fi>,
	Christoph Lameter <clameter@....com>,
	Manfred Spraul <manfred@...orfullife.com>
Subject: [RFC 1/7] Remove declaration of sighand_cachep from slab.h

Remove declaration of sighand_cachep from slab.h

The sighand cache is only used in fs/exec.c and kernel/fork.c. It is defined
in kernel/fork.c but also used in fs/exec.c. So add an extern declaration to
fs/exec.c and remove the definition from slab.h.

Signed-off-by: Christoph Lameter <clameter@....com>

Index: linux-2.6.19-rc5-mm2/fs/exec.c
===================================================================
--- linux-2.6.19-rc5-mm2.orig/fs/exec.c	2006-11-15 16:47:59.065579813 -0600
+++ linux-2.6.19-rc5-mm2/fs/exec.c	2006-11-17 23:03:46.049603927 -0600
@@ -62,6 +62,8 @@ int core_uses_pid;
 char core_pattern[128] = "core";
 int suid_dumpable = 0;
 
+extern kmem_cache_t	*sighand_cachep;
+
 EXPORT_SYMBOL(suid_dumpable);
 /* The maximal length of core_pattern is also specified in sysctl.c */
 
Index: linux-2.6.19-rc5-mm2/include/linux/slab.h
===================================================================
--- linux-2.6.19-rc5-mm2.orig/include/linux/slab.h	2006-11-17 23:02:21.371436329 -0600
+++ linux-2.6.19-rc5-mm2/include/linux/slab.h	2006-11-17 23:03:46.114062585 -0600
@@ -302,7 +302,6 @@ extern kmem_cache_t	*names_cachep;
 extern kmem_cache_t	*files_cachep;
 extern kmem_cache_t	*filp_cachep;
 extern kmem_cache_t	*fs_cachep;
-extern kmem_cache_t	*sighand_cachep;
 extern kmem_cache_t	*bio_cachep;
 
 #endif	/* __KERNEL__ */
-
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