linux-kernel - Re: [PATCH 03/10] Use percpu stats

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Message-ID: <20100901034131.GB18958@kryten>
Date:	Wed, 1 Sep 2010 13:41:31 +1000
From:	Anton Blanchard <anton@...ba.org>
To:	Nitin Gupta <ngupta@...are.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Minchan Kim <minchan.kim@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <greg@...ah.com>,
	Linux Driver Project <devel@...uxdriverproject.org>,
	linux-mm <linux-mm@...ck.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 03/10] Use percpu stats

 
Hi Nitin,

> There doesn't seem to be a free_percpu() in the module exit path. Something
> like this perhaps?

Sorry, was having other zram issues on ppc64 that prevented me from testing
this. Stupid bug, removed the &.

Anton

zram: Free percpu data on module exit.

Signed-off-by: Anton Blanchard <anton@...ba.org>
---

Index: powerpc.git/drivers/staging/zram/zram_drv.c
===================================================================
--- powerpc.git.orig/drivers/staging/zram/zram_drv.c	2010-08-31 15:15:59.344290847 +1000
+++ powerpc.git/drivers/staging/zram/zram_drv.c	2010-09-01 12:35:02.964893575 +1000
@@ -483,8 +483,7 @@ void zram_reset_device(struct zram *zram
 	xv_destroy_pool(zram->mem_pool);
 	zram->mem_pool = NULL;
 
-	/* Reset stats */
-	memset(&zram->stats, 0, sizeof(zram->stats));
+	free_percpu(zram->stats);
 
 	zram->disksize = zram_default_disksize();
 	mutex_unlock(&zram->init_lock);
--
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