From: Johannes Weiner <hannes@cmpxchg.org>
To: Shaohua Li <shli@fb.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Kernel-team@fb.com, mhocko@suse.com, minchan@kernel.org,
hughd@google.com, riel@redhat.com, mgorman@techsingularity.net,
akpm@linux-foundation.org
Subject: Re: [PATCH V3 1/7] mm: don't assume anonymous pages have SwapBacked flag
Date: Thu, 16 Feb 2017 12:39:58 -0500 [thread overview]
Message-ID: <20170216173958.GA20791@cmpxchg.org> (raw)
In-Reply-To: <62e817d1d7fbee415ded0ac76233cb1329ffe06f.1487100204.git.shli@fb.com>
On Tue, Feb 14, 2017 at 11:36:07AM -0800, Shaohua Li wrote:
> There are a few places the code assumes anonymous pages should have
> SwapBacked flag set. MADV_FREE pages are anonymous pages but we are
> going to add them to LRU_INACTIVE_FILE list and clear SwapBacked flag
> for them. The assumption doesn't hold any more, so fix them.
>
> Cc: Michal Hocko <mhocko@suse.com>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: Hugh Dickins <hughd@google.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Rik van Riel <riel@redhat.com>
> Cc: Mel Gorman <mgorman@techsingularity.net>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Shaohua Li <shli@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Shaohua Li <shli@fb.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Kernel-team@fb.com, mhocko@suse.com, minchan@kernel.org,
hughd@google.com, riel@redhat.com, mgorman@techsingularity.net,
akpm@linux-foundation.org
Subject: Re: [PATCH V3 1/7] mm: don't assume anonymous pages have SwapBacked flag
Date: Thu, 16 Feb 2017 12:39:58 -0500 [thread overview]
Message-ID: <20170216173958.GA20791@cmpxchg.org> (raw)
In-Reply-To: <62e817d1d7fbee415ded0ac76233cb1329ffe06f.1487100204.git.shli@fb.com>
On Tue, Feb 14, 2017 at 11:36:07AM -0800, Shaohua Li wrote:
> There are a few places the code assumes anonymous pages should have
> SwapBacked flag set. MADV_FREE pages are anonymous pages but we are
> going to add them to LRU_INACTIVE_FILE list and clear SwapBacked flag
> for them. The assumption doesn't hold any more, so fix them.
>
> Cc: Michal Hocko <mhocko@suse.com>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: Hugh Dickins <hughd@google.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Rik van Riel <riel@redhat.com>
> Cc: Mel Gorman <mgorman@techsingularity.net>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Shaohua Li <shli@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2017-02-16 17:40 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-14 19:36 [PATCH V3 0/7] mm: fix some MADV_FREE issues Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-14 19:36 ` [PATCH V3 1/7] mm: don't assume anonymous pages have SwapBacked flag Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-16 17:39 ` Johannes Weiner [this message]
2017-02-16 17:39 ` Johannes Weiner
2017-02-14 19:36 ` [PATCH V3 2/7] mm: move MADV_FREE pages into LRU_INACTIVE_FILE list Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-16 17:52 ` Johannes Weiner
2017-02-16 17:52 ` Johannes Weiner
2017-02-17 0:35 ` Shaohua Li
2017-02-17 0:35 ` Shaohua Li
2017-02-17 16:22 ` Johannes Weiner
2017-02-17 16:22 ` Johannes Weiner
2017-02-14 19:36 ` [PATCH V3 3/7] mm: reclaim MADV_FREE pages Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-16 18:40 ` Johannes Weiner
2017-02-16 18:40 ` Johannes Weiner
2017-02-17 0:27 ` Shaohua Li
2017-02-17 0:27 ` Shaohua Li
2017-02-17 5:45 ` Minchan Kim
2017-02-17 5:45 ` Minchan Kim
2017-02-17 16:11 ` Johannes Weiner
2017-02-17 16:11 ` Johannes Weiner
2017-02-17 16:01 ` Johannes Weiner
2017-02-17 16:01 ` Johannes Weiner
2017-02-17 18:43 ` Shaohua Li
2017-02-17 18:43 ` Shaohua Li
2017-02-17 20:03 ` Johannes Weiner
2017-02-17 20:03 ` Johannes Weiner
2017-02-17 5:41 ` Minchan Kim
2017-02-17 5:41 ` Minchan Kim
2017-02-17 9:27 ` Minchan Kim
2017-02-17 9:27 ` Minchan Kim
2017-02-17 16:15 ` Johannes Weiner
2017-02-17 16:15 ` Johannes Weiner
2017-02-14 19:36 ` [PATCH V3 4/7] mm: enable MADV_FREE for swapless system Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-17 16:16 ` Johannes Weiner
2017-02-17 16:16 ` Johannes Weiner
2017-02-14 19:36 ` [PATCH V3 5/7] mm: add vmstat account for MADV_FREE pages Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-14 19:36 ` [PATCH V3 6/7] proc: show MADV_FREE pages info in smaps Shaohua Li
2017-02-14 19:36 ` Shaohua Li
2017-02-14 19:36 ` [PATCH V3 7/7] mm: add a separate RSS for MADV_FREE pages Shaohua Li
2017-02-14 19:36 ` Shaohua Li
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