[RFC PATCH] OSD and kRBD request expiry (was Re: iSCSI active/active stale io guard)

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On Wed, 2 May 2018 00:36:04 +0200, David Disseldorp wrote:

> The Ceph (v13.0.2-1974) OSD request expiry functionality is added via a
> new (likely in the completely wrong place) class="user" fn="expire_req"
> call:
> https://github.com/ddiss/ceph/commits/poc_osd_req_expiry
> 
> This new class function is then invoked via an op that is prefixed to
> all kRBD OSD write requests *if* the image is mapped with a
> write_expiry_msec=X parameter:
> https://git.samba.org/?p=ddiss/linux.git;a=shortlog;h=refs/heads/poc_krbd_wreq_expiry

Ping, did anyone else get a chance to look at this? Is there any
interest in also going in this direction for active / active
tcmu-runner support?

Cheers, David
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