From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: target-devel@vger.kernel.org
Subject: Re: [PATCH v5] target: add emulate_pr backstore attr to toggle PR support
Date: Thu, 22 Nov 2018 03:11:46 +0000 [thread overview]
Message-ID: <yq1zhu17qml.fsf@oracle.com> (raw)
In-Reply-To: <20181107131107.7426-1-ddiss@suse.de>
David,
> The new emulate_pr backstore attribute allows for Persistent Reservation
> and SCSI2 RESERVE/RELEASE support to be completely disabled. This can be
> useful for scenarios such as:
> - Ensuring ATS (Compare & Write) usage on recent VMware ESXi initiators.
> - Allowing clustered (e.g. tcm-user) backends to block such requests,
> avoiding the multi-node reservation state propagation.
>
> When explicitly disabled, PR and RESERVE/RELEASE requests receive
> Invalid Command Operation Code response sense data.
Applied to 4.21/scsi-queue. Thank you!
--
Martin K. Petersen Oracle Linux Engineering
prev parent reply other threads:[~2018-11-22 3:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-07 13:11 [PATCH v5] target: add emulate_pr backstore attr to toggle PR support David Disseldorp
2018-11-19 12:05 ` David Disseldorp
2018-11-21 3:29 ` Mike Christie
2018-11-21 9:17 ` Christoph Hellwig
2018-11-22 3:11 ` Martin K. Petersen [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=yq1zhu17qml.fsf@oracle.com \
--to=martin.petersen@oracle.com \
--cc=target-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.