From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933370Ab2GCTKR (ORCPT ); Tue, 3 Jul 2012 15:10:17 -0400 Received: from mail.digidescorp.com ([50.73.98.161]:49333 "EHLO mail.digidescorp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750791Ab2GCTKI (ORCPT ); Tue, 3 Jul 2012 15:10:08 -0400 DomainKey-Signature: a=rsa-sha1; s=MDaemon; d=digidescorp.com; c=simple; q=dns; h=from:message-id; b=jT/9HiecQtvEsVUEY7bOLJrhoQBVYvHK5xR2HpuA0ax/L+OEHNCKMTx8PC9K R3Y/soIV1E74oy++/ESGuYLWmWFQDmxpIa72yVEhXSBxKJBlDoqp9U9g4 deH7KXIREBF6GVebStWo9QVVxaTHiMDX4fShhT8zJ8oj55GFk4yp2A=; X-Spam-Processed: mail.digidescorp.com, Tue, 03 Jul 2012 14:09:55 -0500 (not processed: message from trusted or authenticated source) X-Authenticated-Sender: steve@digidescorp.com X-Return-Path: prvs=1531cb781b=steve@digidescorp.com X-Envelope-From: steve@digidescorp.com X-MDaemon-Deliver-To: linux-kernel@vger.kernel.org From: "Steven J. Magnani" To: OGAWA Hirofumi Cc: linux-kernel@vger.kernel.org Subject: [PATCH 0/2] fat (exportfs): fix NFS file handle decode Date: Tue, 3 Jul 2012 14:09:34 -0500 Message-Id: <1341342576-15394-1-git-send-email-steve@digidescorp.com> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When the system evicts inodes and dentries under memory pressure, the FAT driver is unable to map NFS file handles back to the objects they reference. In many cases this causes client operations to fail with ENOENT. This is partially due to ineffectiveness of the current FAT NFS implementation, and partially due to export_operations that have not yet been implemented for FAT. For example, the lack of a fh_to_parent method can cause file accesses to fail on shares exported with subtree_check. This series depends on the following patches: * fat: Fix non-atomic NFS i_pos read * fat: Accessors for msdos_dir_entry 'start' fields * fat: Refactor shortname parsing