From: Bart Van Assche <bvanassche@acm.org>
To: Christoph Hellwig <hch@lst.de>
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org, linux-block@vger.kernel.org,
linux-fsdevel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
Daejun Park <daejun7.park@samsung.com>,
Kanchan Joshi <joshi.k@samsung.com>, Jan Kara <jack@suse.cz>,
Christian Brauner <brauner@kernel.org>,
Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <chao@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH v4 01/15] fs: Rename the kernel-internal data lifetime constants
Date: Mon, 27 Nov 2023 11:00:26 -0800 [thread overview]
Message-ID: <eadc84c5-5f73-499a-8c3e-eb5bfbc67ed1@acm.org> (raw)
In-Reply-To: <20231127070830.GA27870@lst.de>
On 11/26/23 23:08, Christoph Hellwig wrote:
> More importantly these constant have been around forever, so we'd better
> have a really good argument for changing them.
Hi Christoph,
I will drop this patch.
As you know the NVMe and SCSI specifications use the numeric range 0..63 for
the data lifetime so there is a gap between the values supported by the
F_[GS]ET_RW_HINT fcntls and the data lifetime values accepted by widely used
storage devices. Do you think that it should be possible for user space
applications to specify the full range (0..63)?
Thanks,
Bart.
next prev parent reply other threads:[~2023-11-27 19:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-14 21:40 [PATCH v4 00/15] Pass data lifetime information to SCSI disk devices Bart Van Assche
2023-11-14 21:40 ` [PATCH v4 01/15] fs: Rename the kernel-internal data lifetime constants Bart Van Assche
2023-11-20 7:19 ` Kanchan Joshi
2023-11-27 7:08 ` Christoph Hellwig
2023-11-27 8:45 ` Kanchan Joshi
2023-11-27 9:29 ` Christoph Hellwig
2023-11-27 19:00 ` Bart Van Assche [this message]
2023-11-14 21:40 ` [PATCH v4 02/15] fs: Move enum rw_hint into a new header file Bart Van Assche
2023-11-14 21:40 ` [PATCH v4 03/15] block: Restore data lifetime support in struct bio and struct request Bart Van Assche
2023-11-14 21:40 ` [PATCH v4 04/15] fs: Restore write hint support Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 05/15] fs/f2fs: Restore data lifetime support Bart Van Assche
2023-11-20 7:36 ` Kanchan Joshi
2023-11-20 17:53 ` Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 06/15] scsi: core: Query the Block Limits Extension VPD page Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 07/15] scsi_proto: Add structures and constants related to I/O groups and streams Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 08/15] sd: Translate data lifetime information Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 09/15] scsi_debug: Reduce code duplication Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 10/15] scsi_debug: Support the block limits extension VPD page Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 11/15] scsi_debug: Rework page code error handling Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 12/15] scsi_debug: Rework subpage " Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 13/15] scsi_debug: Implement the IO Advice Hints Grouping mode page Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 14/15] scsi_debug: Implement GET STREAM STATUS Bart Van Assche
2023-11-14 21:41 ` [PATCH v4 15/15] scsi_debug: Maintain write statistics per group number Bart Van Assche
2023-11-21 19:25 ` Bart Van Assche
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