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Fri, 28 Oct 2022 08:19:42 -0700 (PDT) Date: Fri, 28 Oct 2022 11:19:43 -0400 From: Johannes Weiner To: Nhat Pham Cc: akpm@linux-foundation.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 v2 5/5] zsmalloc: Implement writeback mechanism for zsmalloc Message-ID: References: <202210272158.7swYwd23-lkp@intel.com> <20221027182736.513530-1-nphamcs@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221027182736.513530-1-nphamcs@gmail.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666970383; a=rsa-sha256; cv=none; b=xCaDEdeMmog2uR/pBZRjUocgnqZmn+2KAFvyStMwb+G66yR4imcNuW5LGpasmvp/Kj6MNh UmihuRYDPdyd8RJQXnYSdlXOhVYaeMYEeg1H524/iIx1T6m+FJ3eJwCtAfDArCNExwKY4V b2GbDKUbMQ7cwaHByqQ45teEBn9nAjE= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=cmpxchg-org.20210112.gappssmtp.com header.s=20210112 header.b=55nZPiMl; 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spf=pass (imf17.hostedemail.com: domain of hannes@cmpxchg.org designates 209.85.219.47 as permitted sender) smtp.mailfrom=hannes@cmpxchg.org; dmarc=pass (policy=none) header.from=cmpxchg.org X-HE-Tag: 1666970383-980956 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 Thu, Oct 27, 2022 at 11:27:36AM -0700, 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 Acked-by: Johannes Weiner