From mboxrd@z Thu Jan 1 00:00:00 1970 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=-2.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_MED, USER_AGENT_GIT 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 93B39C433F5 for ; Wed, 29 Aug 2018 08:56:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4CD472084D for ; Wed, 29 Aug 2018 08:56:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=javigon-com.20150623.gappssmtp.com header.i=@javigon-com.20150623.gappssmtp.com header.b="zrE6XIc+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4CD472084D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=javigon.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727972AbeH2MwV (ORCPT ); Wed, 29 Aug 2018 08:52:21 -0400 Received: from mail-ed1-f67.google.com ([209.85.208.67]:34809 "EHLO mail-ed1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727204AbeH2MwV (ORCPT ); Wed, 29 Aug 2018 08:52:21 -0400 Received: by mail-ed1-f67.google.com with SMTP id u1-v6so3179901eds.1 for ; Wed, 29 Aug 2018 01:56:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=javigon-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=LOWMU9nbKLMRVxYpdWBu3kVYOaxx2yoK/+OTATVMhF0=; b=zrE6XIc+Z4lKyvbMO2XJvcJoqNiUAOynfriuc9PPVstXorGAeCA6Dx5aF3bZmIcdkG lwe+1aylMYEII8zsy+O8o7ovZhLw35oOI2FHVOMjQ3jGWu89e+8WNOs8ktjMSwm1E+Bn phpnXHjMCgNrv/As6NYHrMlGnD61P3klnOYN9q/67UvbJzGu/q8nCIfBgUhexhMsuJno WiG/pMNq2GuGcMABy5ASmf2n1XeoRVH+Gx4Dzl4gzDEyscRgxh8YI2fiTN88xzdZDsM+ ojcsNcXtZg1lmZhFzpH4yaiyr2y9XohU7Xz/Fh5p8peCf0kMsXuPD9EbrYFmngpUl6eV j7CA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=LOWMU9nbKLMRVxYpdWBu3kVYOaxx2yoK/+OTATVMhF0=; b=m+0IvVMgK8ZuPQ5qp1/qQ+BzN6wLvp24qjT9La581K6rgZXh/QcIOT9boPZls0ti0M 4RiJg3VET60u+X1FRCzw3HsHZHMstU2BPri4szU3jzc2+Pi/ajxM/CqdHr1Pz4C7a3xH 8FSU2ptxPwb+6Kt8Nyyeq6mfZkCP14Moh6kDa1XeSh7jnaRkJxjAs93ZXbSedk7Ugqor BeqMZkIZN0RGxT+1K/yFOuvcL0Jnk5IBol4UqwkBc490TP34TH3Pz+ZF8QwvwcRilGBG Dw3jsUIk/Y1ctqthbUkodMxrvda2PMNZkTmoxJOqN3JdL030V8bngLIfmbrTj/mpR7a3 9gjQ== X-Gm-Message-State: APzg51BkEW3qrqRbI8Drq9YyBT4iKToUj+rFtbyfBL2iCo3Soo5qUfMT ec5bDrbp/Sasl0QL5XCmolSiKtMXotw= X-Google-Smtp-Source: ANB0VdbmjHP4PEWXZjRNhNgEoz2iVE0GmNUODriP77b3opnTgoCaU57Kb05O1IkZHFrfqdxa2B2C2A== X-Received: by 2002:aa7:c485:: with SMTP id m5-v6mr6468295edq.205.1535532987447; Wed, 29 Aug 2018 01:56:27 -0700 (PDT) Received: from ch-wrk-javier.cnexlabs.com (6164211-cl69.boa.fiberby.dk. [193.106.164.211]) by smtp.gmail.com with ESMTPSA id w22-v6sm1867867eda.34.2018.08.29.01.56.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 29 Aug 2018 01:56:27 -0700 (PDT) From: "=?UTF-8?q?Javier=20Gonz=C3=A1lez?=" X-Google-Original-From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= To: mb@lightnvm.io Cc: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Subject: [V4 PATCH 0/2] lightnvm: pblk: take write semaphore on metadata Date: Wed, 29 Aug 2018 10:56:17 +0200 Message-Id: <1535532980-27672-1-git-send-email-javier@cnexlabs.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org # Changes since V3: - Encapsulate rqd dma allocations to reduce code replication (by Matias) # Changes since V2: - Split the original patch between the metadata refactoring and the semaphore logic. This simplifies the write path, where the semaphore is taken. # Changes singe V1: - Fix double I/O on the read path (by Matias) - Improve commit message (by Jens) This patchset refactors the metadata separate write and read paths, which simplifies how the semaphore is taken for writes. Thanks, Javier Javier González (3): lightnvm: pblk: refactor metadata paths lightnvm: encapsule rqd dma allocations lightnvm: pblk: take write semaphore on metadata drivers/lightnvm/pblk-core.c | 377 ++++++++++++++++++++------------------- drivers/lightnvm/pblk-gc.c | 2 +- drivers/lightnvm/pblk-read.c | 35 ++-- drivers/lightnvm/pblk-recovery.c | 33 ++-- drivers/lightnvm/pblk-write.c | 15 +- drivers/lightnvm/pblk.h | 8 +- 6 files changed, 230 insertions(+), 240 deletions(-) -- 2.7.4