linux-kernel - [PATCH] selinux: reorder inode_security_struct to increase objs/slab on 64bit

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Date:	Sun, 18 May 2008 12:32:57 +0100
From:	Richard Kennedy <richard@....demon.co.uk>
To:	sds@...ho.nsa.gov, jmorris@...ei.org
Cc:	lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] selinux: reorder inode_security_struct to increase
	objs/slab on 64bit

reorder inode_security_struct to remove padding on 64 bit builds
    
size reduced from 72 to 64 bytes increasing objects per slab to 64.
        
Signed-off-by: Richard Kennedy <richard@....demon.co.uk>

---
This patch is against 2.6.26-r2 & boots successfully on my AMD64
desktop.


Richard



diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 032c235..5f0be19 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -43,8 +43,8 @@ struct inode_security_struct {
 	u32 sid;		/* SID of this object */
 	u16 sclass;		/* security class of this object */
 	unsigned char initialized;	/* initialization flag */
-	struct mutex lock;
 	unsigned char inherit;	/* inherit SID from parent entry */
+	struct mutex lock;
 };
 
 struct file_security_struct {


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