From: sashiko-bot@kernel.org
To: "Stefan Haberland" <sth@linux.ibm.com>
Cc: "Alexander Gordeev" <agordeev@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
linux-s390@vger.kernel.org, "Heiko Carstens" <hca@linux.ibm.com>
Subject: Re: [PATCH v5 03/17] s390/dasd: Optimize max blocks per request for track alignment
Date: Fri, 31 Jul 2026 15:46:11 +0000 [thread overview]
Message-ID: <20260731154612.1D59B1F000E9@smtp.kernel.org> (raw)
In-Reply-To: <20260731153842.1729627-4-sth@linux.ibm.com>
> With 4096-byte blocks a full ECKD track holds exactly 12 records. Lower
> DASD_ECKD_MAX_BLOCKS from 190 to 180 so requests align to track
> boundaries (15 full tracks); full-track I/O is more efficient than
> partial-track writes, and 190 had no alignment significance and could
> let a request cross a track boundary.
>
> Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
> Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260731153842.1729627-1-sth@linux.ibm.com?part=3
next prev parent reply other threads:[~2026-07-31 15:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-31 15:38 [PATCH v5 00/17] s390/dasd: ESE thin-provisioning performance improvements Stefan Haberland
2026-07-31 15:38 ` [PATCH v5 01/17] s390/dasd: Propagate partial completion length across ERP recovery Stefan Haberland
2026-07-31 15:50 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 02/17] s390/dasd: Guard sysfs discipline callbacks against unallocated private data Stefan Haberland
2026-07-31 15:59 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 03/17] s390/dasd: Optimize max blocks per request for track alignment Stefan Haberland
2026-07-31 15:46 ` sashiko-bot [this message]
2026-07-31 15:38 ` [PATCH v5 04/17] s390/dasd: Use GFP_KERNEL in dasd_alloc_device() Stefan Haberland
2026-07-31 15:52 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 05/17] s390/dasd: Add defines for the Extended Address Volume track address Stefan Haberland
2026-07-31 15:48 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 06/17] s390/dasd: Add infrastructure for ESE full-track write Stefan Haberland
2026-07-31 16:16 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 07/17] s390/dasd: Add range-based format-track collision detection Stefan Haberland
2026-07-31 16:11 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 08/17] s390/dasd: Extend prepare_itcw() to support WRITE_FULL_TRACK Stefan Haberland
2026-07-31 16:21 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 09/17] s390/dasd: Add dasd_eckd_build_cp_tpm_writefulltrack() Stefan Haberland
2026-07-31 16:13 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 10/17] s390/dasd: Use WRITE_FULL_TRACK in ESE format handler Stefan Haberland
2026-07-31 16:33 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 11/17] s390/dasd: Add full_track_bias to control fulltrack write mode Stefan Haberland
2026-07-31 16:28 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 12/17] s390/dasd: Derive adaptive ESE fulltrack heuristic from ft_bias Stefan Haberland
2026-07-31 16:27 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 13/17] s390/dasd: Stamp a format label into newly formatted volumes Stefan Haberland
2026-07-31 16:35 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 14/17] s390/dasd: Detect ESE volumes from the on-disk format label Stefan Haberland
2026-07-31 16:43 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 15/17] s390/dasd: Report ESE capability and format mode at device online Stefan Haberland
2026-07-31 16:39 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 16/17] s390/dasd: Re-enable discard support for ESE volumes Stefan Haberland
2026-07-31 16:54 ` sashiko-bot
2026-07-31 15:38 ` [PATCH v5 17/17] s390/dasd: Read cached unit address and LSS in the CCW build path Stefan Haberland
2026-07-31 16:58 ` sashiko-bot
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