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

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Message-ID: <20170822131649.GL9729@dhcp22.suse.cz>
Date:   Tue, 22 Aug 2017 15:16:50 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
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 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.
-- 
Michal Hocko
SUSE Labs