From patchwork Fri Jun 4 22:25:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paulo Alcantara X-Patchwork-Id: 12300879 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11D5EC4743D for ; Fri, 4 Jun 2021 22:25:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E75A6613AD for ; Fri, 4 Jun 2021 22:25:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229746AbhFDW1l (ORCPT ); Fri, 4 Jun 2021 18:27:41 -0400 Received: from mx.cjr.nz ([51.158.111.142]:9376 "EHLO mx.cjr.nz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231634AbhFDW1k (ORCPT ); Fri, 4 Jun 2021 18:27:40 -0400 Received: from authenticated-user (mx.cjr.nz [51.158.111.142]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: pc) by mx.cjr.nz (Postfix) with ESMTPSA id 8ED047FC02; Fri, 4 Jun 2021 22:25:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cjr.nz; s=dkim; t=1622845553; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=qQctAvOTUXC1/QYDZ1ojaZI9VHRRO6ZF/EDn5q9rQFs=; b=FczlLRcPHugCmd9DqB3rp5LxSEaQAvY6ssUmkB3XaFakPFO60wGnoPlp0Cnp6AOIsdxgkv OixOWJRD0vtqeLQH5tFD0aKreTM0krD0bAkI16AzihfWWlkreQ2uLxGqUvwu3v0LrQR+gG E1ObweMead8UPZb5eQ9hhcZqZSKZ3SwNpHJOpjvF6nRMV6jZjw93HN9IatIvYjrxz0b0tA qdbdUlhm7kGWBLgbSTuFzmr1v68Xj8gknES4erbf+OnwcbLJ0WK/KB/wnWwwF2evg8HYhO D5TyMyLomQ+8WA0MJZA2U0ZljNIn0Kk29lHGLfjoFUdvO07ylfUp16N0uqzp+w== From: Paulo Alcantara To: linux-cifs@vger.kernel.org, smfrench@gmail.com Cc: Paulo Alcantara Subject: [PATCH 0/7] dfs fixes Date: Fri, 4 Jun 2021 19:25:26 -0300 Message-Id: <20210604222533.4760-1-pc@cjr.nz> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Hi Steve, Follow a series with dfs fixes and improvements. - correctly handle different charsets when passing around DFS paths by converting them all to a default enconding in cache (utf8). - keep SMB sessions alive as long as dfs mounts are actives in order to refresh cached entries by using IPC tcons. - set a mininum of 2 minutes for refreshing cached entries - fix broken hash of case sensitive DFS paths - skip unnecessary tree disconnect of IPCs when shutting down SMB sessions (it didn't even work before). - do not share tcp servers when mounting dfs shares because they may failover to completely different targets (use nosharesock). Paulo Alcantara (7): cifs: do not send tree disconnect to ipc shares cifs: get rid of @noreq param in __dfs_cache_find() cifs: keep referral server sessions alive cifs: handle different charsets in dfs cache cifs: fix path comparison and hash calc cifs: set a minimum of 2 minutes for refreshing dfs cache cifs: do not share tcp servers with dfs mounts fs/cifs/cifs_fs_sb.h | 7 +- fs/cifs/cifsglob.h | 3 +- fs/cifs/connect.c | 132 +++--- fs/cifs/dfs_cache.c | 1004 +++++++++++++++++------------------------- fs/cifs/dfs_cache.h | 45 +- 5 files changed, 498 insertions(+), 693 deletions(-)