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From: Muchun Song In-Reply-To: <20230724094354.90817-40-zhengqi.arch@bytedance.com> Date: Wed, 26 Jul 2023 15:43:36 +0800 Cc: Andrew Morton , david@fromorbit.com, tkhai@ya.ru, Vlastimil Babka , Roman Gushchin , djwong@kernel.org, Christian Brauner , "Paul E. McKenney" , tytso@mit.edu, steven.price@arm.com, cel@kernel.org, senozhatsky@chromium.org, yujie.liu@intel.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org, linux-erofs@lists.ozlabs.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-nfs@vger.kernel.org, linux-mtd@lists.infradead.org, rcu@vger.kernel.org, netdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, dm-devel@redhat.com, linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org Content-Transfer-Encoding: 7bit Message-Id: References: <20230724094354.90817-1-zhengqi.arch@bytedance.com> <20230724094354.90817-40-zhengqi.arch@bytedance.com> To: Qi Zheng X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: ECE051C000B X-Stat-Signature: om7dwt7gj3a4oezpy8ydmwndz367weyc X-HE-Tag: 1690357457-866608 X-HE-Meta: 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 wxpaihA6 RTD0j24BeCk3wsmJfTHLg6dkYzu4CLQq73g2Na/o60TNdIoJ2HNOFnEyQlBkUvPRohgy4XLrQllYrJsUYQiH3ntJkxOkwz2Nz065muRi/ReQWYimC/BnOdYaln2MD4BK6NcFEbztCK+ARsJta8keopoL2+887lbfWi7Fo31XMS5So46Ex54GP1Yof0S1966LvK17e+lPn4OMS1caqELciAampgCqJJ8yjN/eqQ7WGRKnPwOAwyrJUBCmaptbzZ3s+gBFftVrmCTWx85drCiADzXbGqPIF9SfZks4UhBGD838m4YY= 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 Jul 24, 2023, at 17:43, Qi Zheng wrote: > > In preparation for implementing lockless slab shrink, use new APIs to > dynamically allocate the mm-zspool shrinker, so that it can be freed > asynchronously using kfree_rcu(). Then it doesn't need to wait for RCU > read-side critical section when releasing the struct zs_pool. > > Signed-off-by: Qi Zheng Reviewed-by: Muchun Song