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Date:   Thu, 13 Aug 2020 14:56:30 +0800
From:   Alex Shi <>
To:     Alexander Duyck <>
Subject: Re: [RFC PATCH 1/3] mm: Drop locked from isolate_migratepages_block

在 2020/8/13 下午12:02, Alexander Duyck 写道:
> From: Alexander Duyck <>
> We can drop the need for the locked variable by making use of the
> lruvec_holds_page_lru_lock function. By doing this we can avoid some rcu
> locking ugliness for the case where the lruvec is still holding the LRU
> lock associated with the page. Instead we can just use the lruvec and if it
> is NULL we assume the lock was released.
> Signed-off-by: Alexander Duyck <>
> ---
>  mm/compaction.c |   45 ++++++++++++++++++++-------------------------
>  1 file changed, 20 insertions(+), 25 deletions(-)

Thanks a lot!
Don't know if community is ok if we keep the patch following whole patchset alone?

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