linux-kernel - [PATCH] xfs: do not pass size into kmem

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Date:	Tue, 22 Apr 2008 04:33:03 +0200
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	David Chinner <dgc@....com>
Cc:	Eric Sandeen <sandeen@...deen.net>, Adrian Bunk <bunk@...nel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Shawn Bohrer <shawn.bohrer@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH] xfs: do not pass size into kmem_free, it's unused

Hi David,

> Patches are welcome - I'd be over the moon if any of the known 4k
> stack advocates sent a stack reduction patch for XFS, but it seems
> that actually trying to fix the problems is much harder than
> resending a one line patch every few months....

kmem_free() function takes (ptr, size) arguments but doesn't
actually use second one.

This patch removes size argument from all callsites.

Code size difference on 32-bit x86:

# size */fs/xfs/xfs.o
   text    data     bss     dec     hex filename
 391271    2748    1708  395727   609cf linux-2.6-xfs0-TEST/fs/xfs/xfs.o
 390739    2748    1708  395195   607bb linux-2.6-xfs1-TEST/fs/xfs/xfs.o

Compile-tested only.

Signed-off-by: Denys Vlasenko <vda.linux@...glemail.com>
--
vda

View attachment "xfs-kmem_free-remove_unused_param.patch" of type "text/x-diff" (28393 bytes)