From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AEC8A2ECD0C; Tue, 17 Jun 2025 15:33:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750174381; cv=none; b=CP/dMtO+sOI5buil714hK6SkuzsfP0+xwz01vgoWuTJSYnC8ELO1cikWUZ7LDuO8iUOd6AXIQSmfnsUM6NE//l64anRsP8L+pnh+VrEW+mKEXrrHSlzVR8JbO/BDaAhoSJ3ZyiYkAZP/WBULMA+c07Cudk5zLjRqZKRSyXW85gQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750174381; c=relaxed/simple; bh=xdnzZuknW01mpqZfUIw6dBTLZEyXlDqqOT7ijoC1u6w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VnmwIZP+OPSUS+xqn7P/neshWg623fhUAk21YNxfnAwpODNT5DyCFZVehA2riGa9AS66/BFkOQ8m0O04lk9jkj2YvvoSt2Cwnt5m7CE9DPXFgJK9261wgEZLe8ArMb3z17oIW+OAhNbwqRJR4g+J8xlHXpZ13w2cCu3Gzh0rEz4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wQbqVfoL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="wQbqVfoL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14826C4CEF0; Tue, 17 Jun 2025 15:33:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750174381; bh=xdnzZuknW01mpqZfUIw6dBTLZEyXlDqqOT7ijoC1u6w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wQbqVfoLAUNkXHpN+ieXSNBKsFoNJM/I2Of748+qhv3bTIA4h3pYgEM+9qayIA4zi zXsJQTYrAOT47uaSfxPmcmcnPU/5fcYq8LnDHyRltrgGQ7B4QxgMdmg8GhVml8Yr3Y rId54Jy46edTP5PVbj3+B+oi9bnIbBLBazaMXBhk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andreas Gruenbacher , Sasha Levin Subject: [PATCH 6.12 007/512] gfs2: replace sd_aspace with sd_inode Date: Tue, 17 Jun 2025 17:19:33 +0200 Message-ID: <20250617152419.822396599@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617152419.512865572@linuxfoundation.org> References: <20250617152419.512865572@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andreas Gruenbacher [ Upstream commit ae9f3bd8259a0a8f67be2420e66bb05fbb95af48 ] Currently, sdp->sd_aspace and the per-inode metadata address spaces use sb->s_bdev->bd_mapping->host as their ->host; folios in those address spaces will thus appear to be on bdev rather than on gfs2 filesystems. This is a problem because gfs2 doesn't support cgroup writeback (SB_I_CGROUPWB), but bdev does. Fix that by using a "dummy" gfs2 inode as ->host in those address spaces. When coming from a folio, folio->mapping->host->i_sb will then be a gfs2 super block and the SB_I_CGROUPWB flag will not be set in sb->s_iflags. Based on a previous version from Bob Peterson from several years ago. Thanks to Tetsuo Handa, Jan Kara, and Rafael Aquini for helping figure this out. Fixes: aaa2cacf8184 ("writeback: add lockdep annotation to inode_to_wb()") Signed-off-by: Andreas Gruenbacher Signed-off-by: Sasha Levin --- fs/gfs2/glock.c | 3 +-- fs/gfs2/glops.c | 4 ++-- fs/gfs2/incore.h | 9 ++++++++- fs/gfs2/meta_io.c | 2 +- fs/gfs2/meta_io.h | 4 +--- fs/gfs2/ops_fstype.c | 31 ++++++++++++++++++------------- fs/gfs2/super.c | 2 +- 7 files changed, 32 insertions(+), 23 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 4f1eca99786b6..aecce4bb5e1a9 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1183,7 +1183,6 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, const struct gfs2_glock_operations *glops, int create, struct gfs2_glock **glp) { - struct super_block *s = sdp->sd_vfs; struct lm_lockname name = { .ln_number = number, .ln_type = glops->go_type, .ln_sbd = sdp }; @@ -1246,7 +1245,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, mapping = gfs2_glock2aspace(gl); if (mapping) { mapping->a_ops = &gfs2_meta_aops; - mapping->host = s->s_bdev->bd_mapping->host; + mapping->host = sdp->sd_inode; mapping->flags = 0; mapping_set_gfp_mask(mapping, GFP_NOFS); mapping->i_private_data = NULL; diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 95d8081681dcc..72a0601ce65e2 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -168,7 +168,7 @@ void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) static int gfs2_rgrp_metasync(struct gfs2_glock *gl) { struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; - struct address_space *metamapping = &sdp->sd_aspace; + struct address_space *metamapping = gfs2_aspace(sdp); struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl); const unsigned bsize = sdp->sd_sb.sb_bsize; loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK; @@ -225,7 +225,7 @@ static int rgrp_go_sync(struct gfs2_glock *gl) static void rgrp_go_inval(struct gfs2_glock *gl, int flags) { struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; - struct address_space *mapping = &sdp->sd_aspace; + struct address_space *mapping = gfs2_aspace(sdp); struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl); const unsigned bsize = sdp->sd_sb.sb_bsize; loff_t start, end; diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index bd1348bff90eb..e5535d7b46592 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -793,7 +793,7 @@ struct gfs2_sbd { /* Log stuff */ - struct address_space sd_aspace; + struct inode *sd_inode; spinlock_t sd_log_lock; @@ -849,6 +849,13 @@ struct gfs2_sbd { unsigned long sd_glock_dqs_held; }; +#define GFS2_BAD_INO 1 + +static inline struct address_space *gfs2_aspace(struct gfs2_sbd *sdp) +{ + return sdp->sd_inode->i_mapping; +} + static inline void gfs2_glstats_inc(struct gfs2_glock *gl, int which) { gl->gl_stats.stats[which]++; diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index fea3efcc2f930..960d6afcdfad8 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -132,7 +132,7 @@ struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno, int create) unsigned int bufnum; if (mapping == NULL) - mapping = &sdp->sd_aspace; + mapping = gfs2_aspace(sdp); shift = PAGE_SHIFT - sdp->sd_sb.sb_bsize_shift; index = blkno >> shift; /* convert block to page */ diff --git a/fs/gfs2/meta_io.h b/fs/gfs2/meta_io.h index 831d988c2ceb7..b7c8a6684d024 100644 --- a/fs/gfs2/meta_io.h +++ b/fs/gfs2/meta_io.h @@ -44,9 +44,7 @@ static inline struct gfs2_sbd *gfs2_mapping2sbd(struct address_space *mapping) struct gfs2_glock_aspace *gla = container_of(mapping, struct gfs2_glock_aspace, mapping); return gla->glock.gl_name.ln_sbd; - } else if (mapping->a_ops == &gfs2_rgrp_aops) - return container_of(mapping, struct gfs2_sbd, sd_aspace); - else + } else return inode->i_sb->s_fs_info; } diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index e83d293c36142..6ce475e1c6d64 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -72,7 +72,6 @@ void free_sbd(struct gfs2_sbd *sdp) static struct gfs2_sbd *init_sbd(struct super_block *sb) { struct gfs2_sbd *sdp; - struct address_space *mapping; sdp = kzalloc(sizeof(struct gfs2_sbd), GFP_KERNEL); if (!sdp) @@ -109,16 +108,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) INIT_LIST_HEAD(&sdp->sd_sc_inodes_list); - mapping = &sdp->sd_aspace; - - address_space_init_once(mapping); - mapping->a_ops = &gfs2_rgrp_aops; - mapping->host = sb->s_bdev->bd_mapping->host; - mapping->flags = 0; - mapping_set_gfp_mask(mapping, GFP_NOFS); - mapping->i_private_data = NULL; - mapping->writeback_index = 0; - spin_lock_init(&sdp->sd_log_lock); atomic_set(&sdp->sd_log_pinned, 0); INIT_LIST_HEAD(&sdp->sd_log_revokes); @@ -1135,6 +1124,7 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc) int silent = fc->sb_flags & SB_SILENT; struct gfs2_sbd *sdp; struct gfs2_holder mount_gh; + struct address_space *mapping; int error; sdp = init_sbd(sb); @@ -1156,6 +1146,7 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc) sb->s_flags |= SB_NOSEC; sb->s_magic = GFS2_MAGIC; sb->s_op = &gfs2_super_ops; + sb->s_d_op = &gfs2_dops; sb->s_export_op = &gfs2_export_ops; sb->s_qcop = &gfs2_quotactl_ops; @@ -1181,9 +1172,21 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc) sdp->sd_tune.gt_statfs_quantum = 30; } + /* Set up an address space for metadata writes */ + sdp->sd_inode = new_inode(sb); + error = -ENOMEM; + if (!sdp->sd_inode) + goto fail_free; + sdp->sd_inode->i_ino = GFS2_BAD_INO; + sdp->sd_inode->i_size = OFFSET_MAX; + + mapping = gfs2_aspace(sdp); + mapping->a_ops = &gfs2_rgrp_aops; + mapping_set_gfp_mask(mapping, GFP_NOFS); + error = init_names(sdp, silent); if (error) - goto fail_free; + goto fail_iput; snprintf(sdp->sd_fsname, sizeof(sdp->sd_fsname), "%s", sdp->sd_table_name); @@ -1192,7 +1195,7 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc) WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_FREEZABLE, 0, sdp->sd_fsname); if (!sdp->sd_glock_wq) - goto fail_free; + goto fail_iput; sdp->sd_delete_wq = alloc_workqueue("gfs2-delete/%s", WQ_MEM_RECLAIM | WQ_FREEZABLE, 0, sdp->sd_fsname); @@ -1309,6 +1312,8 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc) fail_glock_wq: if (sdp->sd_glock_wq) destroy_workqueue(sdp->sd_glock_wq); +fail_iput: + iput(sdp->sd_inode); fail_free: free_sbd(sdp); sb->s_fs_info = NULL; diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index b9cef63c78717..6d62ff5cb445a 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -648,7 +648,7 @@ static void gfs2_put_super(struct super_block *sb) gfs2_jindex_free(sdp); /* Take apart glock structures and buffer lists */ gfs2_gl_hash_clear(sdp); - truncate_inode_pages_final(&sdp->sd_aspace); + iput(sdp->sd_inode); gfs2_delete_debugfs_file(sdp); gfs2_sys_fs_del(sdp); -- 2.39.5