From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757381Ab2IDP5k (ORCPT ); Tue, 4 Sep 2012 11:57:40 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:56393 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757290Ab2IDP5h (ORCPT ); Tue, 4 Sep 2012 11:57:37 -0400 From: Namjae Jeon To: hirofumi@mail.parknet.co.jp, akpm@linux-foundation.org, bfields@fieldses.org, viro@zeniv.linux.org.uk Cc: linux-kernel@vger.kernel.org, Namjae Jeon , Namjae Jeon Subject: [PATCH v2 0/5] fat: make persistent inode numbers and stablize for NFS. Date: Wed, 5 Sep 2012 00:57:08 +0900 Message-Id: <1346774228-7993-1-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 This patch-set eliminates the client side ESTALE errors when a FAT partition exported over NFS has its dentries evicted from the cache. One of the reasons for this error is lack of permanent inode numbers on FAT which makes it difficult to construct persistent file handles. This can be overcome by using the on-disk location of the directory entries (i_pos) as the inode numbers. Once the i_pos is available, it is only a matter of reading the directory entries from the disk clusters to locate the matching entry and rebuild the corresponding inode. If process is referring to the file, and the file is unlinked(deleted). Then, the file 'i_pos' is added to the busy list so the the entry is not available for new file creation. when finally inode is evicted the corresponding busy list entries are removed and slots are made available for new entries. Namjae Jeon (5) fat: allocate persistent inode numbers fat (exportfs): rebuild inode if ilookup() fails fat (exportfs): rebuild directory-inode if fat_dget() fails fat: eliminate-orphaned-inode-number-allocation Documentation: update nfs option in filesystem/vfat.txt -- 1.7.9.5