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Date: Mon, 27 Jul 2020 12:34:39 -0400 From: Gabriel Krisman Bertazi <krisman@...labora.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org, Mike Snitzer <snitzer@...hat.com>, Sasha Levin <sashal@...nel.org> Subject: Re: [PATCH 5.4 024/138] dm mpath: pass IO start time to path selector Greg Kroah-Hartman <gregkh@...uxfoundation.org> writes: > From: Gabriel Krisman Bertazi <krisman@...labora.com> > > [ Upstream commit 087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b ] > > The HST path selector needs this information to perform path > prediction. For request-based mpath, struct request's io_start_time_ns > is used, while for bio-based, use the start_time stored in dm_io. Hi Greg, This patch is not -stable material. It is only needed for a new feature merged in 5.8. Thanks, -- Gabriel Krisman Bertazi
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