From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751633AbbGNFfZ (ORCPT ); Tue, 14 Jul 2015 01:35:25 -0400 Received: from bes.se.axis.com ([195.60.68.10]:51083 "EHLO bes.se.axis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751057AbbGNFfY (ORCPT ); Tue, 14 Jul 2015 01:35:24 -0400 From: Rabin Vincent To: , CC: , , Rabin Vincent Subject: [PATCH] Documentation: mm: fix location of extfrag_index Date: Tue, 14 Jul 2015 07:35:11 +0200 Message-ID: <1436852111-1147-1-git-send-email-rabin.vincent@axis.com> X-Mailer: git-send-email 1.7.10.4 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org /proc/extfrag_index does not exist. This file is in debugfs. Fix the description of extfrag_threshold to reflect this. Signed-off-by: Rabin Vincent --- Documentation/sysctl/vm.txt | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 9832ec5..9c3f2f8 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -225,11 +225,11 @@ with your system. To disable them, echo 4 (bit 3) into drop_caches. extfrag_threshold This parameter affects whether the kernel will compact memory or direct -reclaim to satisfy a high-order allocation. /proc/extfrag_index shows what -the fragmentation index for each order is in each zone in the system. Values -tending towards 0 imply allocations would fail due to lack of memory, -values towards 1000 imply failures are due to fragmentation and -1 implies -that the allocation will succeed as long as watermarks are met. +reclaim to satisfy a high-order allocation. The extfrag/extfrag_index file in +debugfs shows what the fragmentation index for each order is in each zone in +the system. Values tending towards 0 imply allocations would fail due to lack +of memory, values towards 1000 imply failures are due to fragmentation and -1 +implies that the allocation will succeed as long as watermarks are met. The kernel will not compact memory in a zone if the fragmentation index is <= extfrag_threshold. The default value is 500. -- 1.7.10.4