From: Christoph Hellwig <hch@lst.de>
To: Kanchan Joshi <joshi.k@samsung.com>
Cc: Christoph Hellwig <hch@lst.de>,
axboe@kernel.dk, kbusch@kernel.org, sagi@grimberg.me,
martin.petersen@oracle.com,
James.Bottomley@HansenPartnership.com, brauner@kernel.org,
viro@zeniv.linux.org.uk, jack@suse.cz, jaegeuk@kernel.org,
jlayton@kernel.org, chuck.lever@oracle.com, bvanassche@acm.org,
linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-block@vger.kernel.org, linux-scsi@vger.kernel.org,
gost.dev@samsung.com, vishak.g@samsung.com,
javier.gonz@samsung.com, Nitesh Shetty <nj.shetty@samsung.com>
Subject: Re: [PATCH v5 4/5] sd: limit to use write life hints
Date: Wed, 18 Sep 2024 14:01:59 +0200 [thread overview]
Message-ID: <20240918120159.GA20658@lst.de> (raw)
In-Reply-To: <197b2c1a-66d2-5f5a-c258-7e2f35eff8e4@samsung.com>
On Wed, Sep 18, 2024 at 01:42:51PM +0530, Kanchan Joshi wrote:
> Would you prefer a new queue attribute (say nr_streams) that tells that?
No. For one because using the same file descriptors as the one used
to set the hind actually makes it usable - finding the block device
does not. And second as told about half a dozend time for this scheme
to actually work on a regular file the file system actually needs the
arbiter, as it can work on top of multiple block devices, consumes
streams, might export streams even if the underlying devices don't and
so on.
next prev parent reply other threads:[~2024-09-18 12:02 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20240910151040epcas5p3f47fa7ea37a35f8b44dd9174689e1bb9@epcas5p3.samsung.com>
2024-09-10 15:01 ` [PATCH v5 0/5] data placement hints and FDP Kanchan Joshi
[not found] ` <CGME20240910151044epcas5p37f61bb85ccf8b3eb875e77c3fc260c51@epcas5p3.samsung.com>
2024-09-10 15:01 ` [PATCH v5 1/5] fs, block: refactor enum rw_hint Kanchan Joshi
2024-09-12 12:53 ` Christoph Hellwig
2024-09-12 15:50 ` Kanchan Joshi
2024-09-12 20:30 ` Bart Van Assche
2024-09-13 7:22 ` Kanchan Joshi
[not found] ` <CGME20240910151048epcas5p3c610d63022362ec5fcc6fc362ad2fb9f@epcas5p3.samsung.com>
2024-09-10 15:01 ` [PATCH v5 2/5] fcntl: rename rw_hint_* to rw_lifetime_hint_* Kanchan Joshi
2024-09-12 12:54 ` Christoph Hellwig
2024-09-12 15:51 ` Kanchan Joshi
[not found] ` <CGME20240910151052epcas5p48b20962753b1e3171daf98f050d0b5af@epcas5p4.samsung.com>
2024-09-10 15:01 ` [PATCH v5 3/5] fcntl: add F_{SET/GET}_RW_HINT_EX Kanchan Joshi
2024-09-10 18:48 ` Jens Axboe
2024-09-11 15:50 ` Kanchan Joshi
2024-09-12 13:01 ` Christoph Hellwig
2024-09-12 15:53 ` Kanchan Joshi
2024-09-12 20:36 ` Bart Van Assche
2024-09-13 7:15 ` Kanchan Joshi
[not found] ` <CGME20240910151057epcas5p3369c6257a6f169b4caa6dd59548b538c@epcas5p3.samsung.com>
2024-09-10 15:01 ` [PATCH v5 4/5] sd: limit to use write life hints Kanchan Joshi
2024-09-12 13:02 ` Christoph Hellwig
2024-09-12 16:31 ` Kanchan Joshi
2024-09-13 8:06 ` Christoph Hellwig
2024-09-16 13:49 ` Kanchan Joshi
2024-09-17 6:20 ` Christoph Hellwig
2024-09-17 16:03 ` Kanchan Joshi
2024-09-17 17:00 ` Kanchan Joshi
2024-09-18 6:42 ` Christoph Hellwig
2024-09-18 8:12 ` Kanchan Joshi
2024-09-18 12:01 ` Christoph Hellwig [this message]
2024-09-24 9:24 ` Kanchan Joshi
2024-09-24 9:28 ` Christoph Hellwig
[not found] ` <CGME20240910151101epcas5p1c4e90f7334125fc49106d58d43cffcec@epcas5p1.samsung.com>
2024-09-10 15:02 ` [PATCH v5 5/5] nvme: enable FDP support Kanchan Joshi
2025-01-29 0:56 ` [f2fs-dev] [PATCH v5 0/5] data placement hints and FDP patchwork-bot+f2fs
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