From: Mike Christie <mchristi@redhat.com>
To: Ilya Dryomov <idryomov@gmail.com>, ceph-devel@vger.kernel.org
Subject: Re: [PATCH] rbd: lock_on_read map option
Date: Sat, 24 Sep 2016 04:47:41 -0500 [thread overview]
Message-ID: <57E64BBD.4040407@redhat.com> (raw)
In-Reply-To: <1474554177-4029-1-git-send-email-idryomov@gmail.com>
On 09/22/2016 09:22 AM, Ilya Dryomov wrote:
> Add a per-device option to acquire exclusive lock on reads (in addition
> to writes and discards). The use case is iSCSI, where it will be used
> to prevent execution of stale writes after the implicit failover.
>
> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
> ---
> drivers/block/rbd.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
Tested-by: Mike Christie <mchristi@redhat.com>
prev parent reply other threads:[~2016-09-24 9:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-22 14:22 [PATCH] rbd: lock_on_read map option Ilya Dryomov
2016-09-24 9:47 ` Mike Christie [this message]
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