From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9056AC433E0 for ; Tue, 9 Mar 2021 15:57:16 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D35565279 for ; Tue, 9 Mar 2021 15:57:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D35565279 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id C7C756F501; Tue, 9 Mar 2021 15:57:15 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id g2_w4bVrWX8p; Tue, 9 Mar 2021 15:57:15 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp3.osuosl.org (Postfix) with ESMTP id 7C9C66F509; Tue, 9 Mar 2021 15:57:14 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id F0441C0013; Tue, 9 Mar 2021 15:57:13 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 9AF7FC0001 for ; Tue, 9 Mar 2021 15:57:12 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 7AC834C351 for ; Tue, 9 Mar 2021 15:57:12 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp4.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=infradead.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wAjV48XCeFxC for ; Tue, 9 Mar 2021 15:57:11 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by smtp4.osuosl.org (Postfix) with ESMTPS id 8818D4C6C9 for ; Tue, 9 Mar 2021 15:57:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=81oGSCBl39iypfLV/NoPk/fT5YyYJiKMaMVaZJIwgrQ=; b=K1zd0jFpZYL+ZtHkLHvgFqVo3p h0n1mVJ6xBDYsmZ2ahXvorBLK+B3nIqdp9SBF8EG/bXS+IsljPrtJK2g37AP4qDeVxiqHM/RZXx3q S2CEFcUd8C43qdjZ+9VdgqfeVWq56HoefjzfpaWwnPCvcAjOqJar1KuO0CyEqdbCe8ML70nAYFfua VPC6vyaOhGWsaj+cksNDgySPdh8+mPTd/DfGakuL9yseLjJeQfIk/7NZVe94BnW2qbyUlG2+FyHwZ uFSZK8ZEBs8Qdk6n8xtOgSm5GaHD9TgoqPuqa4IUBK0F1IiHVfJUGU91yPDMhg29RGnXUdHnRmOAs sVy5rRLQ==; Received: from [2001:4bb8:180:9884:c70:4a89:bc61:3] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lJeiQ-000lYx-7J; Tue, 09 Mar 2021 15:56:11 +0000 From: Christoph Hellwig To: Al Viro Subject: [PATCH 9/9] zsmalloc: remove the zsmalloc file system Date: Tue, 9 Mar 2021 16:53:48 +0100 Message-Id: <20210309155348.974875-10-hch@lst.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210309155348.974875-1-hch@lst.de> References: <20210309155348.974875-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Cc: Jason Gunthorpe , "VMware, Inc." , "Michael S. Tsirkin" , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, Minchan Kim , Nadav Amit , Daniel Vetter , linux-fsdevel@vger.kernel.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org, Nitin Gupta X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Just use the generic anon_inode file system. Signed-off-by: Christoph Hellwig --- mm/zsmalloc.c | 48 +++--------------------------------------------- 1 file changed, 3 insertions(+), 45 deletions(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index a6449a2ad861de..a7d2f471935447 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -176,10 +177,6 @@ struct zs_size_stat { static struct dentry *zs_stat_root; #endif -#ifdef CONFIG_COMPACTION -static struct vfsmount *zsmalloc_mnt; -#endif - /* * We assign a page to ZS_ALMOST_EMPTY fullness group when: * n <= N / f, where @@ -308,8 +305,6 @@ static void kick_deferred_free(struct zs_pool *pool); static void init_deferred_free(struct zs_pool *pool); static void SetZsPageMovable(struct zs_pool *pool, struct zspage *zspage); #else -static int zsmalloc_mount(void) { return 0; } -static void zsmalloc_unmount(void) {} static int zs_register_migration(struct zs_pool *pool) { return 0; } static void zs_unregister_migration(struct zs_pool *pool) {} static void migrate_lock_init(struct zspage *zspage) {} @@ -1751,33 +1746,6 @@ static void lock_zspage(struct zspage *zspage) } while ((page = get_next_page(page)) != NULL); } -static int zs_init_fs_context(struct fs_context *fc) -{ - return init_pseudo(fc, ZSMALLOC_MAGIC) ? 0 : -ENOMEM; -} - -static struct file_system_type zsmalloc_fs = { - .name = "zsmalloc", - .init_fs_context = zs_init_fs_context, - .kill_sb = kill_anon_super, -}; - -static int zsmalloc_mount(void) -{ - int ret = 0; - - zsmalloc_mnt = kern_mount(&zsmalloc_fs); - if (IS_ERR(zsmalloc_mnt)) - ret = PTR_ERR(zsmalloc_mnt); - - return ret; -} - -static void zsmalloc_unmount(void) -{ - kern_unmount(zsmalloc_mnt); -} - static void migrate_lock_init(struct zspage *zspage) { rwlock_init(&zspage->lock); @@ -2086,7 +2054,7 @@ static const struct address_space_operations zsmalloc_aops = { static int zs_register_migration(struct zs_pool *pool) { - pool->inode = alloc_anon_inode_sb(zsmalloc_mnt->mnt_sb); + pool->inode = alloc_anon_inode(); if (IS_ERR(pool->inode)) { pool->inode = NULL; return 1; @@ -2506,14 +2474,10 @@ static int __init zs_init(void) { int ret; - ret = zsmalloc_mount(); - if (ret) - goto out; - ret = cpuhp_setup_state(CPUHP_MM_ZS_PREPARE, "mm/zsmalloc:prepare", zs_cpu_prepare, zs_cpu_dead); if (ret) - goto hp_setup_fail; + return ret; #ifdef CONFIG_ZPOOL zpool_register_driver(&zs_zpool_driver); @@ -2522,11 +2486,6 @@ static int __init zs_init(void) zs_stat_init(); return 0; - -hp_setup_fail: - zsmalloc_unmount(); -out: - return ret; } static void __exit zs_exit(void) @@ -2534,7 +2493,6 @@ static void __exit zs_exit(void) #ifdef CONFIG_ZPOOL zpool_unregister_driver(&zs_zpool_driver); #endif - zsmalloc_unmount(); cpuhp_remove_state(CPUHP_MM_ZS_PREPARE); zs_stat_exit(); -- 2.30.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization