From: Christoph Hellwig <hch@lst.de>
To: Damien Le Moal <dlemoal@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
linux-scsi@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>
Subject: Re: [PATCH v3 1/7] block: fail reads to offline zones early
Date: Wed, 7 Oct 2026 15:29:05 +0200 [thread overview]
Message-ID: <20261007132905.GA31906@lst.de> (raw)
In-Reply-To: <20261007082344.1049179-2-dlemoal@kernel.org>
On Wed, Oct 07, 2026 at 05:23:38PM +0900, Damien Le Moal wrote:
> Any BIO targeting an offline zone of a zoned block device will fail,
> including read commands. So there is no point in issuing read BIOs.
> Fail these read operations early if we ever see one.
Sashiko things this can race with zone updates. Which is real, at least
sorta. Maybe we should just do this in the drivers instead where we
are under freeze protection? A bit uglier due to duplication, but not
really any more complicated. And drivers right now would basically
just be sd and zloop anyway.
next prev parent reply other threads:[~2026-10-07 13:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-07 8:23 [PATCH v3 0/7] Add support for storage element depopulation Damien Le Moal
2026-10-07 8:23 ` [PATCH v3 1/7] block: fail reads to offline zones early Damien Le Moal
2026-10-07 13:29 ` Christoph Hellwig [this message]
2026-10-07 14:31 ` Damien Le Moal
2026-10-07 8:23 ` [PATCH v3 2/7] block: introduce storage element management Damien Le Moal
2026-10-07 13:35 ` Christoph Hellwig
2026-10-07 14:35 ` Damien Le Moal
2026-10-07 8:23 ` [PATCH v3 3/7] block: add storage element management ioctls Damien Le Moal
2026-10-07 13:39 ` Christoph Hellwig
2026-10-07 14:37 ` Damien Le Moal
2026-10-07 15:28 ` Christoph Hellwig
2026-10-07 8:23 ` [PATCH v3 4/7] zloop: add storage element emulation Damien Le Moal
2026-10-07 13:40 ` Christoph Hellwig
2026-10-07 8:23 ` [PATCH v3 5/7] zloop: add degrade_element control command Damien Le Moal
2026-10-07 8:23 ` [PATCH v3 6/7] scsi: sd_zbc: always revalidate zones for disks supporting head depopulation Damien Le Moal
2026-10-07 8:23 ` [PATCH v3 7/7] scsi: sd_zbc: define storage element management operations Damien Le Moal
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