Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752588Ab3FXKXe (ORCPT ); Mon, 24 Jun 2013 06:23:34 -0400 Received: from e28smtp09.in.ibm.com ([122.248.162.9]:36929 "EHLO e28smtp09.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752562Ab3FXKXc (ORCPT ); Mon, 24 Jun 2013 06:23:32 -0400 From: Wanpeng Li To: Pekka Enberg , Christoph Lameter , Matt Mackall Cc: Glauber Costa , Andrew Morton , Joonsoo Kim , David Rientjes , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wanpeng Li Subject: [PATCH 3/3] mm/slab: Fix /proc/slabinfo unwriteable for slab Date: Mon, 24 Jun 2013 18:23:14 +0800 Message-Id: <1372069394-26167-3-git-send-email-liwanp@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1372069394-26167-1-git-send-email-liwanp@linux.vnet.ibm.com> References: <1372069394-26167-1-git-send-email-liwanp@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13062410-2674-0000-0000-000009894381 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1304 Lines: 43 Slab have some tunables like limit, batchcount, and sharedfactor can be tuned through function slabinfo_write. Commit (b7454ad3: mm/sl[au]b: Move slabinfo processing to slab_common.c) uncorrectly change /proc/slabinfo unwriteable for slab, this patch fix it by revert to original mode. Signed-off-by: Wanpeng Li --- mm/slab_common.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/mm/slab_common.c b/mm/slab_common.c index d161b81..7fdde79 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -631,10 +631,20 @@ static const struct file_operations proc_slabinfo_operations = { .release = seq_release, }; +#ifdef CONFIG_SLAB +static int __init slab_proc_init(void) +{ + proc_create("slabinfo", S_IWUSR | S_IRUSR, NULL, &proc_slabinfo_operations); + return 0; +} +#endif +#ifdef CONFIG_SLUB static int __init slab_proc_init(void) { proc_create("slabinfo", S_IRUSR, NULL, &proc_slabinfo_operations); return 0; } +#endif + module_init(slab_proc_init); #endif /* CONFIG_SLABINFO */ -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/