linux-kernel - Re: [PATCH][v2] PM / Hibernate: Feed the wathdog when creating snapshot

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Message-ID: <2871816.XzHRS8c6tY@aspire.rjw.lan>
Date:   Tue, 22 Aug 2017 15:18:08 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Chen Yu <yu.c.chen@...el.com>, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Vlastimil Babka <vbabka@...e.cz>, Len Brown <lenb@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][v2] PM / Hibernate: Feed the wathdog when creating snapshot

On Tuesday, August 22, 2017 3:16:50 PM CEST Michal Hocko wrote:
> On Tue 22-08-17 14:55:39, Rafael J. Wysocki wrote:
> [...]
> > And you may want to touch the watchdog at the end too in case
> > page_count is small then.
> 
> Why would that be needed? If the number of pages is slow then we will
> release the IRQ lock early and won't need to care about watchdog at all.
> 

Fair enough.