From: Johannes Weiner <hannes@cmpxchg.org>
To: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.cz>,
Mel Gorman <mgorman@techsingularity.net>,
linux-mm@kvack.org
Subject: Re: [PATCH] mm, vmscan: unlock page while waiting on writeback
Date: Fri, 21 Aug 2015 10:42:38 +0200 [thread overview]
Message-ID: <20150821084237.GA6619@cmpxchg.org> (raw)
In-Reply-To: <alpine.LSU.2.11.1508191930390.2073@eggly.anvils>
On Wed, Aug 19, 2015 at 07:36:31PM -0700, Hugh Dickins wrote:
> This is merely a politeness: I've not found that shrink_page_list() leads
> to deadlock with the page it holds locked across wait_on_page_writeback();
> but nevertheless, why hold others off by keeping the page locked there?
>
> And while we're at it: remove the mistaken "not " from the commentary
> on this Case 3 (and a distracting blank line from Case 2, if I may).
>
> Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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prev parent reply other threads:[~2015-08-21 8:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-20 2:36 [PATCH] mm, vmscan: unlock page while waiting on writeback Hugh Dickins
2015-08-20 8:09 ` Michal Hocko
2015-08-21 8:42 ` Johannes Weiner [this message]
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