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From: Muchun Song In-Reply-To: <20230724094354.90817-37-zhengqi.arch@bytedance.com> Date: Wed, 26 Jul 2023 15:42:06 +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> <20230724094354.90817-37-zhengqi.arch@bytedance.com> To: Qi Zheng X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Stat-Signature: 1rkpt3jxwhpndice4j6fac6b48qkgp85 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: AFDA9120003 X-HE-Tag: 1690357368-765718 X-HE-Meta: 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 sU1T9qfQ wPRUbQMXacLhL+bhf3kHE6KNBRsWo0pdpZQcrfnH2/zPJSxos6TN57QZNSaMPiKjHpO6KUIRJylKFaAxZ7iNJ+CTvpTPYEw4CgGBQ7Hxpa8I/si/EfIxJCsD5KX+lik0jpnKSiQ8nwYhzH3SClZ8RhWfBLUuPMnHMq5M6UQ/94HjJDnHyvZ1L2tOLWgWsPBYD/jKlxEPwqMcbEU7i1aOD+OAb5a3b9TSkuyp2dl9RcbUcb0rkRfzfJ1fHo31bsHwUQ4rrmE35CQUID/l9qv3MTxXcTJ7v7GAfy9kt8HkCjLzXkk4= 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 xfs-buf 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 xfs_buftarg. > > Signed-off-by: Qi Zheng Reviewed-by: Muchun Song