udf: Track metadata bhs in fs-private inode part

Track metadata bhs for an inode in fs-private part of the inode.

Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-80-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>

Author: jankara

fs/udf/dir.c

@@ -157,6 +157,6 @@ const struct file_operations udf_dir_operations = {
 	.read			= generic_read_dir,
 	.iterate_shared		= udf_readdir,
 	.unlocked_ioctl		= udf_ioctl,
-	.fsync			= generic_buffers_fsync,
+	.fsync			= udf_fsync,
 	.setlease		= generic_setlease,
 };

fs/udf/directory.c

@@ -430,9 +430,10 @@ void udf_fiiter_write_fi(struct udf_fileident_iter *iter, uint8_t *impuse)
 	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
 		mark_inode_dirty(iter->dir);
 	} else {
-		mark_buffer_dirty_inode(iter->bh[0], iter->dir);
+		mmb_mark_buffer_dirty(iter->bh[0], &iinfo->i_metadata_bhs);
 		if (iter->bh[1])
-			mark_buffer_dirty_inode(iter->bh[1], iter->dir);
+			mmb_mark_buffer_dirty(iter->bh[1],
+					      &iinfo->i_metadata_bhs);
 	}
 	inode_inc_iversion(iter->dir);
 }

fs/udf/file.c

@@ -198,14 +198,21 @@ static int udf_file_mmap(struct file *file, struct vm_area_struct *vma)
 	return 0;
 }
 
+int udf_fsync(struct file *file, loff_t start, loff_t end, int datasync)
+{
+	return mmb_fsync(file,
+			&UDF_I(file->f_mapping->host)->i_metadata_bhs,
+			start, end, datasync);
+}
+
 const struct file_operations udf_file_operations = {
 	.read_iter		= generic_file_read_iter,
 	.unlocked_ioctl		= udf_ioctl,
 	.open			= generic_file_open,
 	.mmap			= udf_file_mmap,
 	.write_iter		= udf_file_write_iter,
 	.release		= udf_release_file,
-	.fsync			= generic_buffers_fsync,
+	.fsync			= udf_fsync,
 	.splice_read		= filemap_splice_read,
 	.splice_write		= iter_file_splice_write,
 	.llseek			= generic_file_llseek,

fs/udf/inode.c

@@ -155,8 +155,8 @@ void udf_evict_inode(struct inode *inode)
 	}
 	truncate_inode_pages_final(&inode->i_data);
 	if (!want_delete)
-		sync_mapping_buffers(&inode->i_data);
-	invalidate_inode_buffers(inode);
+		mmb_sync(&iinfo->i_metadata_bhs);
+	mmb_invalidate(&iinfo->i_metadata_bhs);
 	clear_inode(inode);
 	kfree(iinfo->i_data);
 	iinfo->i_data = NULL;
@@ -1263,7 +1263,7 @@ struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
 		memset(bh->b_data, 0x00, inode->i_sb->s_blocksize);
 		set_buffer_uptodate(bh);
 		unlock_buffer(bh);
-		mark_buffer_dirty_inode(bh, inode);
+		mmb_mark_buffer_dirty(bh, &UDF_I(inode)->i_metadata_bhs);
 		return bh;
 	}
 
@@ -2011,7 +2011,7 @@ int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block,
 	memset(bh->b_data, 0x00, sb->s_blocksize);
 	set_buffer_uptodate(bh);
 	unlock_buffer(bh);
-	mark_buffer_dirty_inode(bh, inode);
+	mmb_mark_buffer_dirty(bh, &UDF_I(inode)->i_metadata_bhs);
 
 	aed = (struct allocExtDesc *)(bh->b_data);
 	if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT)) {
@@ -2106,7 +2106,7 @@ int __udf_add_aext(struct inode *inode, struct extent_position *epos,
 		else
 			udf_update_tag(epos->bh->b_data,
 					sizeof(struct allocExtDesc));
-		mark_buffer_dirty_inode(epos->bh, inode);
+		mmb_mark_buffer_dirty(epos->bh, &iinfo->i_metadata_bhs);
 	}
 
 	return 0;
@@ -2190,7 +2190,7 @@ void udf_write_aext(struct inode *inode, struct extent_position *epos,
 				       le32_to_cpu(aed->lengthAllocDescs) +
 				       sizeof(struct allocExtDesc));
 		}
-		mark_buffer_dirty_inode(epos->bh, inode);
+		mmb_mark_buffer_dirty(epos->bh, &iinfo->i_metadata_bhs);
 	} else {
 		mark_inode_dirty(inode);
 	}
@@ -2398,7 +2398,7 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos)
 			else
 				udf_update_tag(oepos.bh->b_data,
 						sizeof(struct allocExtDesc));
-			mark_buffer_dirty_inode(oepos.bh, inode);
+			mmb_mark_buffer_dirty(oepos.bh, &iinfo->i_metadata_bhs);
 		}
 	} else {
 		udf_write_aext(inode, &oepos, &eloc, elen, 1);
@@ -2415,7 +2415,7 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos)
 			else
 				udf_update_tag(oepos.bh->b_data,
 						sizeof(struct allocExtDesc));
-			mark_buffer_dirty_inode(oepos.bh, inode);
+			mmb_mark_buffer_dirty(oepos.bh, &iinfo->i_metadata_bhs);
 		}
 	}
 

fs/udf/namei.c

@@ -638,7 +638,7 @@ static int udf_symlink(struct mnt_idmap *idmap, struct inode *dir,
 		memset(epos.bh->b_data, 0x00, bsize);
 		set_buffer_uptodate(epos.bh);
 		unlock_buffer(epos.bh);
-		mark_buffer_dirty_inode(epos.bh, inode);
+		mmb_mark_buffer_dirty(epos.bh, &iinfo->i_metadata_bhs);
 		ea = epos.bh->b_data + udf_ext0_offset(inode);
 	} else
 		ea = iinfo->i_data + iinfo->i_lenEAttr;

fs/udf/super.c

@@ -166,6 +166,7 @@ static struct inode *udf_alloc_inode(struct super_block *sb)
 	ei->cached_extent.lstart = -1;
 	spin_lock_init(&ei->i_extent_cache_lock);
 	inode_set_iversion(&ei->vfs_inode, 1);
+	mmb_init(&ei->i_metadata_bhs, &ei->vfs_inode.i_data);
 
 	return &ei->vfs_inode;
 }

fs/udf/truncate.c

@@ -186,7 +186,7 @@ static void udf_update_alloc_ext_desc(struct inode *inode,
 		len += lenalloc;
 
 	udf_update_tag(epos->bh->b_data, len);
-	mark_buffer_dirty_inode(epos->bh, inode);
+	mmb_mark_buffer_dirty(epos->bh, &UDF_I(inode)->i_metadata_bhs);
 }
 
 /*

fs/udf/udf_i.h

@@ -50,6 +50,7 @@ struct udf_inode_info {
 	struct kernel_lb_addr	i_locStreamdir;
 	__u64			i_lenStreams;
 	struct rw_semaphore	i_data_sem;
+	struct mapping_metadata_bhs i_metadata_bhs;
 	struct udf_ext_cache cached_extent;
 	/* Spinlock for protecting extent cache */
 	spinlock_t i_extent_cache_lock;

fs/udf/udfdecl.h

@@ -137,6 +137,7 @@ static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi)
 
 /* file.c */
 extern long udf_ioctl(struct file *, unsigned int, unsigned long);
+int udf_fsync(struct file *file, loff_t start, loff_t end, int datasync);
 
 /* inode.c */
 extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,