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Aivazian" , David Sterba , OGAWA Hirofumi , Muchun Song , Oscar Salvador , David Hildenbrand , linux-mm@kvack.org, linux-aio@kvack.org, Benjamin LaHaise , Jan Kara Subject: [PATCH 35/41] fat: Track metadata bhs in fs-private inode part Date: Fri, 20 Mar 2026 14:41:30 +0100 Message-ID: <20260320134100.20731-76-jack@suse.cz> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260320131728.6449-1-jack@suse.cz> References: <20260320131728.6449-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=8966; i=jack@suse.cz; h=from:subject; bh=QgGjN7c4BxfRd0ABPBq3l3E98TILcHEVPdX1WPwyso4=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBpvU6KVzjrAXwYd+c5QPGypEMK4TFB8QYv8MQul UtIQkDZw9CJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCab1OigAKCRCcnaoHP2RA 2cobCADKwUSnOjgiClgfB6psXW26C/z1qDULnxQ4+nohcpiWLODZ5u/jUz/absOxIH3a/RR0ORD CszYoOlHuEiUPvW4W0XId15Drh8UpbZ4BttnRPPZpiGOy2kHHpOXlbnTpQNGFpwQPQ6rj+r6V3a oGsrYoU/AuqU0pBRPay2gIx8+vQ53FQyp1i1FLguPs2GKkywxVHBJXfHKJV6Fk/Nxe58G879VK3 k1Nu8Ga1tY9bi7H79XRzo8jGRv2eb37QMLaMlqmH0kZNTkO4MzrO7eD3+bk8QI6RBM/N/5RW/CK lvRKb9MGwueLLaEULyKe8HjkvecUVLYxMSG4CESE0E2TUiGN X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Content-Transfer-Encoding: 8bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 5277240011 X-Stat-Signature: pd6cf85hywbcqermmtffagbsi6fjobwp X-Rspam-User: X-HE-Tag: 1774014214-844833 X-HE-Meta: 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 sVTUE+FF iLaBc1hsaKXhswIjZFEmFh/lnAG7RwIXC2Djw+dHsdQMvkatmLEc++jRQyaJCHKTV1OV7bVEPoOzno1IBuMDm25pbzDTptWMDT/jJHP7Icr1yyKfFtRCctLmO0jamTlId0COYxZpkS3+GeyVvsC5FzQ7QNw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Track metadata bhs for an inode in fs-private part of the inode. Signed-off-by: Jan Kara --- fs/fat/dir.c | 17 ++++++++++------- fs/fat/fat.h | 1 + fs/fat/fatent.c | 15 ++++++++++----- fs/fat/file.c | 8 +++++--- fs/fat/inode.c | 5 +++-- fs/fat/namei_msdos.c | 6 ++++-- fs/fat/namei_vfat.c | 2 +- 7 files changed, 34 insertions(+), 20 deletions(-) diff --git a/fs/fat/dir.c b/fs/fat/dir.c index 4b8b25f688e4..4f6f42f33613 100644 --- a/fs/fat/dir.c +++ b/fs/fat/dir.c @@ -1027,7 +1027,7 @@ static int __fat_remove_entries(struct inode *dir, loff_t pos, int nr_slots) de++; nr_slots--; } - mark_buffer_dirty_inode(bh, dir); + mmb_mark_buffer_dirty(bh, &MSDOS_I(dir)->i_metadata_bhs); if (IS_DIRSYNC(dir)) err = sync_dirty_buffer(bh); brelse(bh); @@ -1062,7 +1062,7 @@ int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo) de--; nr_slots--; } - mark_buffer_dirty_inode(bh, dir); + mmb_mark_buffer_dirty(bh, &MSDOS_I(dir)->i_metadata_bhs); if (IS_DIRSYNC(dir)) err = sync_dirty_buffer(bh); brelse(bh); @@ -1114,7 +1114,7 @@ static int fat_zeroed_cluster(struct inode *dir, sector_t blknr, int nr_used, memset(bhs[n]->b_data, 0, sb->s_blocksize); set_buffer_uptodate(bhs[n]); unlock_buffer(bhs[n]); - mark_buffer_dirty_inode(bhs[n], dir); + mmb_mark_buffer_dirty(bhs[n], &MSDOS_I(dir)->i_metadata_bhs); n++; blknr++; @@ -1195,7 +1195,7 @@ int fat_alloc_new_dir(struct inode *dir, struct timespec64 *ts) memset(de + 2, 0, sb->s_blocksize - 2 * sizeof(*de)); set_buffer_uptodate(bhs[0]); unlock_buffer(bhs[0]); - mark_buffer_dirty_inode(bhs[0], dir); + mmb_mark_buffer_dirty(bhs[0], &MSDOS_I(dir)->i_metadata_bhs); err = fat_zeroed_cluster(dir, blknr, 1, bhs, MAX_BUF_PER_PAGE); if (err) @@ -1257,7 +1257,8 @@ static int fat_add_new_entries(struct inode *dir, void *slots, int nr_slots, memcpy(bhs[n]->b_data, slots, copy); set_buffer_uptodate(bhs[n]); unlock_buffer(bhs[n]); - mark_buffer_dirty_inode(bhs[n], dir); + mmb_mark_buffer_dirty(bhs[n], + &MSDOS_I(dir)->i_metadata_bhs); slots += copy; size -= copy; if (!size) @@ -1358,7 +1359,8 @@ int fat_add_entries(struct inode *dir, void *slots, int nr_slots, for (i = 0; i < long_bhs; i++) { int copy = umin(sb->s_blocksize - offset, size); memcpy(bhs[i]->b_data + offset, slots, copy); - mark_buffer_dirty_inode(bhs[i], dir); + mmb_mark_buffer_dirty(bhs[i], + &MSDOS_I(dir)->i_metadata_bhs); offset = 0; slots += copy; size -= copy; @@ -1369,7 +1371,8 @@ int fat_add_entries(struct inode *dir, void *slots, int nr_slots, /* Fill the short name slot. */ int copy = umin(sb->s_blocksize - offset, size); memcpy(bhs[i]->b_data + offset, slots, copy); - mark_buffer_dirty_inode(bhs[i], dir); + mmb_mark_buffer_dirty(bhs[i], + &MSDOS_I(dir)->i_metadata_bhs); if (IS_DIRSYNC(dir)) err = sync_dirty_buffer(bhs[i]); } diff --git a/fs/fat/fat.h b/fs/fat/fat.h index 0d269dba897b..5a58f0bf8ce8 100644 --- a/fs/fat/fat.h +++ b/fs/fat/fat.h @@ -130,6 +130,7 @@ struct msdos_inode_info { struct hlist_node i_dir_hash; /* hash by i_logstart */ struct rw_semaphore truncate_lock; /* protect bmap against truncate */ struct timespec64 i_crtime; /* File creation (birth) time */ + struct mapping_metadata_bhs i_metadata_bhs; struct inode vfs_inode; }; diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c index a7061c2ad8e4..f0801d99dd62 100644 --- a/fs/fat/fatent.c +++ b/fs/fat/fatent.c @@ -170,9 +170,11 @@ static void fat12_ent_put(struct fat_entry *fatent, int new) } spin_unlock(&fat12_entry_lock); - mark_buffer_dirty_inode(fatent->bhs[0], fatent->fat_inode); + mmb_mark_buffer_dirty(fatent->bhs[0], + &MSDOS_I(fatent->fat_inode)->i_metadata_bhs); if (fatent->nr_bhs == 2) - mark_buffer_dirty_inode(fatent->bhs[1], fatent->fat_inode); + mmb_mark_buffer_dirty(fatent->bhs[1], + &MSDOS_I(fatent->fat_inode)->i_metadata_bhs); } static void fat16_ent_put(struct fat_entry *fatent, int new) @@ -181,7 +183,8 @@ static void fat16_ent_put(struct fat_entry *fatent, int new) new = EOF_FAT16; *fatent->u.ent16_p = cpu_to_le16(new); - mark_buffer_dirty_inode(fatent->bhs[0], fatent->fat_inode); + mmb_mark_buffer_dirty(fatent->bhs[0], + &MSDOS_I(fatent->fat_inode)->i_metadata_bhs); } static void fat32_ent_put(struct fat_entry *fatent, int new) @@ -189,7 +192,8 @@ static void fat32_ent_put(struct fat_entry *fatent, int new) WARN_ON(new & 0xf0000000); new |= le32_to_cpu(*fatent->u.ent32_p) & ~0x0fffffff; *fatent->u.ent32_p = cpu_to_le32(new); - mark_buffer_dirty_inode(fatent->bhs[0], fatent->fat_inode); + mmb_mark_buffer_dirty(fatent->bhs[0], + &MSDOS_I(fatent->fat_inode)->i_metadata_bhs); } static int fat12_ent_next(struct fat_entry *fatent) @@ -395,7 +399,8 @@ static int fat_mirror_bhs(struct super_block *sb, struct buffer_head **bhs, memcpy(c_bh->b_data, bhs[n]->b_data, sb->s_blocksize); set_buffer_uptodate(c_bh); unlock_buffer(c_bh); - mark_buffer_dirty_inode(c_bh, sbi->fat_inode); + mmb_mark_buffer_dirty(c_bh, + &MSDOS_I(sbi->fat_inode)->i_metadata_bhs); if (sb->s_flags & SB_SYNCHRONOUS) err = sync_dirty_buffer(c_bh); brelse(c_bh); diff --git a/fs/fat/file.c b/fs/fat/file.c index 1551065a7964..3bac06b41420 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -186,13 +186,15 @@ static int fat_file_release(struct inode *inode, struct file *filp) int fat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync) { struct inode *inode = filp->f_mapping->host; + struct inode *fat_inode = MSDOS_SB(inode->i_sb)->fat_inode; int err; - err = generic_buffers_fsync_noflush(filp, start, end, datasync); + err = generic_mmb_fsync_noflush(filp, &MSDOS_I(inode)->i_metadata_bhs, + start, end, datasync); if (err) return err; - err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping); + err = mmb_sync_buffers(&MSDOS_I(fat_inode)->i_metadata_bhs); if (err) return err; @@ -236,7 +238,7 @@ static int fat_cont_expand(struct inode *inode, loff_t size) */ err = filemap_fdatawrite_range(mapping, start, start + count - 1); - err2 = sync_mapping_buffers(mapping); + err2 = mmb_sync_buffers(&MSDOS_I(inode)->i_metadata_bhs); if (!err) err = err2; err2 = write_inode_now(inode, 1); diff --git a/fs/fat/inode.c b/fs/fat/inode.c index ce88602b0d57..1e54091c80fc 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -658,11 +658,11 @@ static void fat_evict_inode(struct inode *inode) inode->i_size = 0; fat_truncate_blocks(inode, 0); } else { - sync_mapping_buffers(inode->i_mapping); + mmb_sync_buffers(&MSDOS_I(inode)->i_metadata_bhs); fat_free_eofblocks(inode); } - invalidate_inode_buffers(inode); + mmb_invalidate_buffers(&MSDOS_I(inode)->i_metadata_bhs); clear_inode(inode); fat_cache_inval_inode(inode); fat_detach(inode); @@ -763,6 +763,7 @@ static struct inode *fat_alloc_inode(struct super_block *sb) ei->i_pos = 0; ei->i_crtime.tv_sec = 0; ei->i_crtime.tv_nsec = 0; + mmb_init(&ei->i_metadata_bhs, &ei->vfs_inode.i_data); return &ei->vfs_inode; } diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c index 048c103b506a..4cc65f330fb7 100644 --- a/fs/fat/namei_msdos.c +++ b/fs/fat/namei_msdos.c @@ -527,7 +527,8 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name, if (update_dotdot) { fat_set_start(dotdot_de, MSDOS_I(new_dir)->i_logstart); - mark_buffer_dirty_inode(dotdot_bh, old_inode); + mmb_mark_buffer_dirty(dotdot_bh, + &MSDOS_I(old_inode)->i_metadata_bhs); if (IS_DIRSYNC(new_dir)) { err = sync_dirty_buffer(dotdot_bh); if (err) @@ -566,7 +567,8 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name, if (update_dotdot) { fat_set_start(dotdot_de, MSDOS_I(old_dir)->i_logstart); - mark_buffer_dirty_inode(dotdot_bh, old_inode); + mmb_mark_buffer_dirty(dotdot_bh, + &MSDOS_I(old_inode)->i_metadata_bhs); corrupt |= sync_dirty_buffer(dotdot_bh); } error_inode: diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index 87dcdd86272b..918b3756674c 100644 --- a/fs/fat/namei_vfat.c +++ b/fs/fat/namei_vfat.c @@ -915,7 +915,7 @@ static int vfat_update_dotdot_de(struct inode *dir, struct inode *inode, struct msdos_dir_entry *dotdot_de) { fat_set_start(dotdot_de, MSDOS_I(dir)->i_logstart); - mark_buffer_dirty_inode(dotdot_bh, inode); + mmb_mark_buffer_dirty(dotdot_bh, &MSDOS_I(inode)->i_metadata_bhs); if (IS_DIRSYNC(dir)) return sync_dirty_buffer(dotdot_bh); return 0; -- 2.51.0