linux-kernel - Re: [PATCH] mm/huge_memory.c: reduce critical section protected by split_queue

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Date:   Sat, 11 Jan 2020 02:50:20 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Wei Yang <richardw.yang@...ux.intel.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, kirill.shutemov@...ux.intel.com
Subject: Re: [PATCH] mm/huge_memory.c: reduce critical section protected by
 split_queue_lock

On Fri, Jan 10, 2020 at 10:55:16AM +0800, Wei Yang wrote:
> split_queue_lock protects data in struct deferred_split. We can release
> the lock after delete the page from deferred_split_queue.
> 
> This patch moves the THP accounting out of the lock protection, which is
> introduced in commit 65c453778aea ("mm, rmap: account shmem thp pages").
> 
> Signed-off-by: Wei Yang <richardw.yang@...ux.intel.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov