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[95.166.82.66]) by smtp.googlemail.com with ESMTPSA id w20-v6sm13253745edc.12.2018.09.17.01.11.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Sep 2018 01:11:04 -0700 (PDT) Subject: Re: [V5 PATCH 0/3] lightnvm: pblk: take write semaphore on metadata To: javier@javigon.com Cc: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, javier@cnexlabs.com References: <1536665091-12641-1-git-send-email-javier@cnexlabs.com> From: =?UTF-8?Q?Matias_Bj=c3=b8rling?= Message-ID: <5d12e1ca-546d-7909-a8ce-b16ab4596041@lightnvm.io> Date: Mon, 17 Sep 2018 10:11:02 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <1536665091-12641-1-git-send-email-javier@cnexlabs.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/11/2018 01:24 PM, Javier González wrote: > # Changes since V4: > - Rebase on top of Matias' core > - Reorder patches to avoid in-patchset changes > > # 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: encapsule rqd dma allocations > lightnvm: pblk: refactor metadata paths > lightnvm: pblk: take write semaphore on metadata > > drivers/lightnvm/pblk-core.c | 376 ++++++++++++++++++++------------------- > drivers/lightnvm/pblk-gc.c | 2 +- > drivers/lightnvm/pblk-read.c | 31 ++-- > drivers/lightnvm/pblk-recovery.c | 34 ++-- > drivers/lightnvm/pblk-write.c | 15 +- > drivers/lightnvm/pblk.h | 7 +- > 6 files changed, 222 insertions(+), 243 deletions(-) > Thanks. Applied for 4.20. I've renamed the first patch to "lightnvm: pblk: encapsulate rqd dma allocations".