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Sat, 19 Nov 2022 08:44:57 -0800 (PST) Date: Sat, 19 Nov 2022 11:45:21 -0500 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 v6 6/6] zsmalloc: Implement writeback mechanism for zsmalloc Message-ID: References: <20221119001536.2086599-1-nphamcs@gmail.com> <20221119001536.2086599-7-nphamcs@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221119001536.2086599-7-nphamcs@gmail.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1668876298; a=rsa-sha256; cv=none; b=18mlCUpzSvm5eeK/BxY0pyr2obEkUQa+MY5s2fVMzA6hYzL0L16+W0Wdgt5EVvxwdwRmWQ 3Ut56zYZjELarCA9haV0mUNCamVW5TuI79GXFy3v3gsEhG3cfYpRCnuQplH3Qe49BTpsi8 Vo/9U8kb50CjmCKxatDLSOHvDUXQajQ= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=pass header.d=cmpxchg-org.20210112.gappssmtp.com header.s=20210112 header.b=I6Uo+hNY; 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spf=pass (imf02.hostedemail.com: domain of hannes@cmpxchg.org designates 209.85.160.181 as permitted sender) smtp.mailfrom=hannes@cmpxchg.org X-Rspamd-Server: rspam09 X-HE-Tag: 1668876298-199489 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 Fri, Nov 18, 2022 at 04:15:36PM -0800, 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 Excellent!