From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752660Ab2IPMXb (ORCPT ); Sun, 16 Sep 2012 08:23:31 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:58454 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752488Ab2IPMX3 (ORCPT ); Sun, 16 Sep 2012 08:23:29 -0400 From: Namjae Jeon To: hirofumi@mail.parknet.co.jp, akpm@linux-foundation.org Cc: bfields@fieldses.org, viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org, Namjae Jeon , Namjae Jeon , Ravishankar N , Amit Sahrawat Subject: [PATCH v3 5/5] Documentation: update nfs option in filesystem/vfat.txt Date: Sun, 16 Sep 2012 08:23:20 -0400 Message-Id: <1347798200-2765-1-git-send-email-linkinjeon@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namjae Jeon update nfs option in filesystem/vfat.txt Signed-off-by: Namjae Jeon Signed-off-by: Ravishankar N Signed-off-by: Amit Sahrawat --- Documentation/filesystems/vfat.txt | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt index de1e6c4..3371b8e 100644 --- a/Documentation/filesystems/vfat.txt +++ b/Documentation/filesystems/vfat.txt @@ -141,13 +141,22 @@ discard -- If set, issues discard/TRIM commands to the block device when blocks are freed. This is useful for SSD devices and sparse/thinly-provisoned LUNs. -nfs -- This option maintains an index (cache) of directory - inodes by i_logstart which is used by the nfs-related code to - improve look-ups. - - Enable this only if you want to export the FAT filesystem +nfs=full_unstable|limited_stable + -- Enable this only if you want to export the FAT filesystem over NFS + full_unstable:This option maintains an index (cache) of + directory inodes by i_logstart which is used by + the nfs-related code to improve look-ups.Full file operations + (read/write) over NFS is supported but with cache eviction + at NFS server, this could result in ESTALE issues. + + limited_stable:This options makes NFS support for FAT as + read-only and provides stable inode based on the on-disk + location of the MS-DOS directory entry.This helps in + reconstruction of the inodes in case of lookup failure, + making FAT behaviour stable with respect to ESTALE issues. + : 0,1,yes,no,true,false TODO -- 1.7.9.5