From patchwork Fri Jan 21 21:57:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 12720318 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC0A5C433EF for ; Fri, 21 Jan 2022 21:57:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232443AbiAUV5s (ORCPT ); Fri, 21 Jan 2022 16:57:48 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:54343 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232432AbiAUV5r (ORCPT ); Fri, 21 Jan 2022 16:57:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1642802267; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=LbdPydri53Ys0YI/ksP8tcx8qE6UcE8forSIwOZlU4M=; b=U9n2EofyAOsAjly7aYJnBzkl3S39PLGgGi6Pa4k4zISVYFwjCUNL1cgzOckrPXM8cuXO3k vWkfwjfODh/J7NP1fh8aRBHpJDpEMlXTH0MvkFlIKAR77WiCcBtaF4sPYuPrpTTRyQjVma 6Iv0mw96RHUgP9cgI5cRqT+RX4zqnpk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-496-Va8Qp28gP3G0ynu2Pd9lOg-1; Fri, 21 Jan 2022 16:57:43 -0500 X-MC-Unique: Va8Qp28gP3G0ynu2Pd9lOg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 739B419251A0; Fri, 21 Jan 2022 21:57:39 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.33.36.5]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4A28712E1C; Fri, 21 Jan 2022 21:57:25 +0000 (UTC) Organization: Red Hat UK Ltd. 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Registered in England and Wales under Company Registration No. 3798903 From: David Howells To: Linus Torvalds Cc: Shyam Prasad N , Jeff Layton , linux-cifs@vger.kernel.org, Steve French , Jeffle Xu , dhowells@redhat.com, Trond Myklebust , Anna Schumaker , Dominique Martinet , Matthew Wilcox , Alexander Viro , Omar Sandoval , linux-cachefs@redhat.com, linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [GIT PULL] fscache: Fixes and minor updates for rewrite MIME-Version: 1.0 Content-ID: <1339461.1642802244.1@warthog.procyon.org.uk> Date: Fri, 21 Jan 2022 21:57:24 +0000 Message-ID: <1339462.1642802244@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Hi Linus, Could you pull this set of fixes and minor updates for the fscache rewrite[1] please? (1) Fix mishandling of volume collisions (the wait condition is inverted and so it was only waiting if the volume collision was already resolved). (2) Fix miscalculation of whether there's space available in cachefiles. (3) Make sure a default cache name is set on a cache if the user hasn't set one by the time they bind the cache. (4) Adjust the way the backing inode is presented in tracepoints, add a tracepoint for mkdir and trace directory lookup. (5) Add a tracepoint for failure to set the active file mark. (6) Add an explanation of the checks made on the backing filesystem. (7) Check that the backing filesystem supports tmpfile. (8) Document how the page-release cancellation of the read-skip optimisation works. And I've included a change for netfslib: (9) Make ops->init_rreq() optional. Note that I dropped the patch that I had to add IS_KERNEL_FILE() as the naming of S_KERNEL_FILE is undergoing late discussion[2] and I dropped the patch to rewrite cifs's fscache indexing as SteveF has taken that into his tree. Thanks, David Link: https://lore.kernel.org/r/510611.1641942444@warthog.procyon.org.uk/ [1] Link: https://lore.kernel.org/r/CAOQ4uxjEcvffv=rNXS-r+NLz+=6yk4abRuX_AMq9v-M4nf_PtA@mail.gmail.com/ [2] Link: https://lore.kernel.org/r/164251396932.3435901.344517748027321142.stgit@warthog.procyon.org.uk/ # v1 --- The following changes since commit 455e73a07f6e288b0061dfcf4fcf54fa9fe06458: Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux (2022-01-12 17:02:27 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git tags/fscache-fixes-20220121 for you to fetch changes up to cef0223191452b3c493a1070baad9ffe806babac: netfs: Make ops->init_rreq() optional (2022-01-21 21:36:28 +0000) ---------------------------------------------------------------- fscache fixes ---------------------------------------------------------------- David Howells (7): fscache: Fix the volume collision wait condition cachefiles: Calculate the blockshift in terms of bytes, not pages cachefiles: Make some tracepoint adjustments cachefiles: Trace active-mark failure cachefiles: Explain checks in a comment cachefiles: Check that the backing filesystem supports tmpfiles fscache: Add a comment explaining how page-release optimisation works Jeffle Xu (2): cachefiles: set default tag name if it's unspecified netfs: Make ops->init_rreq() optional fs/cachefiles/cache.c | 17 ++++--- fs/cachefiles/daemon.c | 11 ++++ fs/cachefiles/internal.h | 2 +- fs/cachefiles/io.c | 2 +- fs/cachefiles/namei.c | 12 +++-- fs/ceph/addr.c | 5 -- fs/fscache/volume.c | 4 +- fs/netfs/read_helper.c | 3 +- include/linux/fscache.h | 5 ++ include/trace/events/cachefiles.h | 103 ++++++++++++++++++++++++++------------ 10 files changed, 113 insertions(+), 51 deletions(-)