Message ID | 20230807110936.21819-12-zhengqi.arch@bytedance.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Mon, 07 Aug 2023 04:12:17 -0700 (PDT) To: akpm@linux-foundation.org, david@fromorbit.com, tkhai@ya.ru, vbabka@suse.cz, roman.gushchin@linux.dev, djwong@kernel.org, brauner@kernel.org, paulmck@kernel.org, tytso@mit.edu, steven.price@arm.com, cel@kernel.org, senozhatsky@chromium.org, yujie.liu@intel.com, gregkh@linuxfoundation.org, muchun.song@linux.dev, simon.horman@corigine.com, dlemoal@kernel.org Date: Mon, 7 Aug 2023 19:08:59 +0800 Message-Id: <20230807110936.21819-12-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230807110936.21819-1-zhengqi.arch@bytedance.com> References: <20230807110936.21819-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 X-Headers-End: 1qSyA9-0007ij-Vc Subject: [f2fs-dev] [PATCH v4 11/48] gfs2: dynamically allocate the gfs2-glock shrinker X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-f2fs-devel.lists.sourceforge.net> List-Unsubscribe: <https://lists.sourceforge.net/lists/options/linux-f2fs-devel>, <mailto:linux-f2fs-devel-request@lists.sourceforge.net?subject=unsubscribe> List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=linux-f2fs-devel> List-Post: <mailto:linux-f2fs-devel@lists.sourceforge.net> List-Help: <mailto:linux-f2fs-devel-request@lists.sourceforge.net?subject=help> List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel>, <mailto:linux-f2fs-devel-request@lists.sourceforge.net?subject=subscribe> From: Qi Zheng via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net> Reply-To: Qi Zheng <zhengqi.arch@bytedance.com> Cc: kvm@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, x86@kernel.org, cluster-devel@redhat.com, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, linux-arm-msm@vger.kernel.org, rcu@vger.kernel.org, linux-bcache@vger.kernel.org, Qi Zheng <zhengqi.arch@bytedance.com>, Muchun Song <songmuchun@bytedance.com>, linux-raid@vger.kernel.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net |
Series |
use refcount+RCU method to implement lockless slab shrink
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expand
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diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 1438e7465e30..8d582ba7514f 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -2046,11 +2046,7 @@ static unsigned long gfs2_glock_shrink_count(struct shrinker *shrink, return vfs_pressure_ratio(atomic_read(&lru_count)); } -static struct shrinker glock_shrinker = { - .seeks = DEFAULT_SEEKS, - .count_objects = gfs2_glock_shrink_count, - .scan_objects = gfs2_glock_shrink_scan, -}; +static struct shrinker *glock_shrinker; /** * glock_hash_walk - Call a function for glock in a hash bucket @@ -2472,13 +2468,19 @@ int __init gfs2_glock_init(void) return -ENOMEM; } - ret = register_shrinker(&glock_shrinker, "gfs2-glock"); - if (ret) { + glock_shrinker = shrinker_alloc(0, "gfs2-glock"); + if (!glock_shrinker) { destroy_workqueue(glock_workqueue); rhashtable_destroy(&gl_hash_table); - return ret; + return -ENOMEM; } + glock_shrinker->count_objects = gfs2_glock_shrink_count; + glock_shrinker->scan_objects = gfs2_glock_shrink_scan; + glock_shrinker->seeks = DEFAULT_SEEKS; + + shrinker_register(glock_shrinker); + for (i = 0; i < GLOCK_WAIT_TABLE_SIZE; i++) init_waitqueue_head(glock_wait_table + i); @@ -2487,7 +2489,7 @@ int __init gfs2_glock_init(void) void gfs2_glock_exit(void) { - unregister_shrinker(&glock_shrinker); + shrinker_free(glock_shrinker); rhashtable_destroy(&gl_hash_table); destroy_workqueue(glock_workqueue); }