From: Alex Shi <alex.shi@linux.alibaba.com>
To: Alexander Duyck <alexander.duyck@gmail.com>
Cc: yang.shi@linux.alibaba.com, lkp@intel.com, rong.a.chen@intel.com,
khlebnikov@yandex-team.ru, kirill@shutemov.name,
hughd@google.com, linux-kernel@vger.kernel.org,
daniel.m.jordan@oracle.com, linux-mm@kvack.org,
shakeelb@google.com, willy@infradead.org, hannes@cmpxchg.org,
tj@kernel.org, cgroups@vger.kernel.org,
akpm@linux-foundation.org, richard.weiyang@gmail.com,
mgorman@techsingularity.net, iamjoonsoo.kim@lge.com
Subject: Re: [RFC PATCH v2 1/5] mm: Identify compound pages sooner in isolate_migratepages_block
Date: Wed, 19 Aug 2020 15:48:41 +0800 [thread overview]
Message-ID: <660b71b7-7e4f-758d-70c8-d938dded5837@linux.alibaba.com> (raw)
In-Reply-To: <20200819042705.23414.84098.stgit@localhost.localdomain>
在 2020/8/19 下午12:27, Alexander Duyck 写道:
> In addition by testing for PageCompound sooner we can avoid having the LRU
> flag cleared and then reset in the exception case. As a result this should
> prevent possible races where another thread might be attempting to pull the
> LRU pages from the list.
>
> Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
next prev parent reply other threads:[~2020-08-19 7:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-19 4:26 [RFC PATCH v2 0/5] Minor cleanups and performance optimizations for LRU rework Alexander Duyck
2020-08-19 4:27 ` [RFC PATCH v2 1/5] mm: Identify compound pages sooner in isolate_migratepages_block Alexander Duyck
2020-08-19 7:48 ` Alex Shi [this message]
[not found] ` <20200819042705.23414.84098.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2020-08-19 11:43 ` Matthew Wilcox
[not found] ` <20200819114309.GB17456-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2020-08-19 14:48 ` Alexander Duyck
[not found] ` <20200819041852.23414.95939.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2020-08-19 4:27 ` [RFC PATCH v2 2/5] mm: Drop use of test_and_set_skip in favor of just setting skip Alexander Duyck
[not found] ` <20200819042713.23414.5084.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2020-08-19 7:50 ` Alex Shi
2020-08-19 4:27 ` [RFC PATCH v2 3/5] mm: Add explicit page decrement in exception path for isolate_lru_pages Alexander Duyck
[not found] ` <20200819042722.23414.2654.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2020-08-19 7:50 ` Alex Shi
[not found] ` <cc993d93-a5af-dd29-19f4-176ba86000e1-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2020-08-19 14:52 ` Alexander Duyck
2020-08-19 4:27 ` [RFC PATCH v2 4/5] mm: Split release_pages work into 3 passes Alexander Duyck
[not found] ` <20200819042730.23414.41309.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2020-08-19 7:53 ` Alex Shi
[not found] ` <15edf807-ce03-83f7-407d-5929341b2b4e-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2020-08-19 14:57 ` Alexander Duyck
[not found] ` <CAKgT0UepdfjXn=j8e4xEBFmsNJdzJyN57em8dscr-Er4OBZCOg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-08-20 9:49 ` Alex Shi
[not found] ` <a88eef1b-242d-78c6-fecb-35ea00cd739b-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2020-08-20 14:13 ` Alexander Duyck
2020-08-19 4:27 ` [RFC PATCH v2 5/5] mm: Split move_pages_to_lru into 3 separate passes Alexander Duyck
[not found] ` <20200819042738.23414.60815.stgit-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2020-08-19 7:56 ` Alex Shi
[not found] ` <084c58a7-7aac-820c-9606-19391c35b9b5-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2020-08-19 14:42 ` Alexander Duyck
[not found] ` <CAKgT0Ud3CZ8KHLXCrWNGJAX85x23-EWLnAV63-NMmJ+5vD1JAA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-08-20 9:56 ` Alex Shi
[not found] ` <87ded438-e908-117d-ecfb-1af7224d46da-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
2020-08-20 17:15 ` Alexander Duyck
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