Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal

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[PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 2/7] block: increase stream count for in-kernel use · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 3/7] block: introduce API to register stream information with block-layer · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 6/7] fs: introduce APIs to enable passing write-hint with buffer-head · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 7/7] fs/ext4,jbd2: add support for sending write-hint with journal · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 5/7] nvme: register stream info with block layer · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 4/7] block: introduce write-hint to stream-id conversion · Kanchan Joshi <hidden> · 2019-04-25
[PATCH v5 1/7] fs: introduce write-hint start point for in-kernel hints · Kanchan Joshi <hidden> · 2019-04-25
RE: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · kanchan <hidden> · 2019-05-10
Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · Christoph Hellwig <hch@infradead.org> · 2019-05-10
RE: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · kanchan <hidden> · 2019-05-17
Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · 'Christoph Hellwig' <hch@infradead.org> · 2019-05-20
Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · Jan Kara <jack@suse.cz> · 2019-05-21
Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · 'Christoph Hellwig' <hch@infradead.org> · 2019-05-21
Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · Jan Kara <jack@suse.cz> · 2019-05-22
RE: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · kanchan <hidden> · 2019-06-26
Re: [PATCH v5 0/7] Extend write-hint framework, and add write-hint for Ext4 journal · 'Christoph Hellwig' <hch@infradead.org> · 2019-06-28

From: 'Christoph Hellwig' <hch@infradead.org>
Date: 2019-05-21 08:28:54
Also in: linux-block, linux-fsdevel, linux-nvme, lkml

On Tue, May 21, 2019 at 10:25:28AM +0200, Jan Kara wrote:

performance benefits for some drives. After all you can just think about it
like RWH_WRITE_LIFE_JOURNAL type of hint available for the kernel...

Except that it actuallys adds a parallel insfrastructure.  A
RWH_WRITE_LIFE_JOURNAL would be much more palatable, but someone needs
to explain how that is:

 a) different from RWH_WRITE_LIFE_SHORT
 b) would not apply to a log/journal maintained in userspace that works
    exactly the same

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