linux-kernel - Re: [V5 PATCH 0/3] lightnvm: pblk: take write semaphore on metadata

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Message-ID: <CF27AC45-B351-4AD9-956D-02EF4E05EF21@cnexlabs.com>
Date:   Mon, 17 Sep 2018 10:11:33 +0000
From:   Javier Gonzalez <javier@...xlabs.com>
To:     Matias Bjørling <mb@...htnvm.io>
CC:     Jens Axboe <axboe@...nel.dk>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [V5 PATCH 0/3] lightnvm: pblk: take write semaphore on metadata

> On 17 Sep 2018, at 10.11, Matias Bjørling <mb@...htnvm.io> wrote:
> 
> 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".

Sounds good. Thanks!

Javier

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