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Mon, 28 Nov 2022 19:58:15 -0800 (PST) Date: Tue, 29 Nov 2022 12:58:10 +0900 From: Sergey Senozhatsky To: Nhat Pham Cc: akpm@linux-foundation.org, hannes@cmpxchg.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, minchan@kernel.org, ngupta@vflare.org, senozhatsky@chromium.org, sjenning@redhat.com, ddstreet@ieee.org, vitaly.wool@konsulko.com Subject: Re: [PATCH v7 6/6] zsmalloc: Implement writeback mechanism for zsmalloc Message-ID: References: <20221128191616.1261026-1-nphamcs@gmail.com> <20221128191616.1261026-7-nphamcs@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221128191616.1261026-7-nphamcs@gmail.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1669694296; a=rsa-sha256; cv=none; b=cBjPcYhaztq27su5Ht6ED7+CTxZyvJDVzPirVc7WhwzEmWQWtJs6p9R8Tt3h2SJQsPTHox UWks6u6iRQuXuDKi5LCQKEReFgnQyG54LumqxqZG16fZi96wFhZcHDtJzyIstMMMWvkliE unZl9yD0BxRkoIE1yMF974h/WBMkn/4= ARC-Authentication-Results: i=1; imf26.hostedemail.com; 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spf=pass (imf26.hostedemail.com: domain of senozhatsky@chromium.org designates 209.85.215.171 as permitted sender) smtp.mailfrom=senozhatsky@chromium.org X-Rspamd-Server: rspam12 X-Rspam-User: X-Stat-Signature: to3ciwi4dfh8h6mi3ajahspj5bqebg73 X-HE-Tag: 1669694296-506451 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On (22/11/28 11:16), Nhat Pham wrote: > This commit adds the writeback mechanism for zsmalloc, analogous to the > zbud allocator. Zsmalloc will attempt to determine the coldest zspage > (i.e least recently used) in the pool, and attempt to write back all the > stored compressed objects via the pool's evict handler. > > Signed-off-by: Nhat Pham Reviewed-by: Sergey Senozhatsky