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Shutemov" To: Wei Yang Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kirill.shutemov@linux.intel.com Subject: Re: [PATCH] mm/huge_memory.c: reduce critical section protected by split_queue_lock Message-ID: <20200110235020.5cfrudvsenzfotmi@box> References: <20200110025516.23996-1-richardw.yang@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200110025516.23996-1-richardw.yang@linux.intel.com> User-Agent: NeoMutt/20180716 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 Acked-by: Kirill A. Shutemov -- Kirill A. Shutemov