bfs: 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/20260326095354.16340-78-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 606f9378b2f03d17c3f5abefd36ecb96c57c0773..b08afe733e63265fe9cc1a58021bfc70078f59b7 100644 (file)
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -35,6 +35,7 @@ struct bfs_inode_info {
        unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
        unsigned long i_sblock;
        unsigned long i_eblock;
+       struct mapping_metadata_bhs i_metadata_bhs;
        struct inode vfs_inode;
 };
 

diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 1b140981dbf3c9edb3d28539eb0880eff1c2250c..2848401e2bf1216d1a0ac9004dc29dd33fd94865 100644 (file)
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -68,10 +68,17 @@ static int bfs_readdir(struct file *f, struct dir_context *ctx)
        return 0;
 }
 
+static int bfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
+{
+       return mmb_fsync(file,
+                       &BFS_I(file->f_mapping->host)->i_metadata_bhs,
+                       start, end, datasync);
+}
+
 const struct file_operations bfs_dir_operations = {
        .read           = generic_read_dir,
        .iterate_shared = bfs_readdir,
-       .fsync          = generic_buffers_fsync,
+       .fsync          = bfs_fsync,
        .llseek         = generic_file_llseek,
 };
 
@@ -186,7 +193,7 @@ static int bfs_unlink(struct inode *dir, struct dentry *dentry)
                set_nlink(inode, 1);
        }
        de->ino = 0;
-       mark_buffer_dirty_inode(bh, dir);
+       mmb_mark_buffer_dirty(bh, &BFS_I(dir)->i_metadata_bhs);
        inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
        mark_inode_dirty(dir);
        inode_set_ctime_to_ts(inode, inode_get_ctime(dir));
@@ -246,7 +253,7 @@ static int bfs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
                inode_set_ctime_current(new_inode);
                inode_dec_link_count(new_inode);
        }
-       mark_buffer_dirty_inode(old_bh, old_dir);
+       mmb_mark_buffer_dirty(old_bh, &BFS_I(old_dir)->i_metadata_bhs);
        error = 0;
 
 end_rename:
@@ -296,7 +303,8 @@ static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino)
                                for (i = 0; i < BFS_NAMELEN; i++)
                                        de->name[i] =
                                                (i < namelen) ? name[i] : 0;
-                               mark_buffer_dirty_inode(bh, dir);
+                               mmb_mark_buffer_dirty(bh,
+                                               &BFS_I(dir)->i_metadata_bhs);
                                brelse(bh);
                                return 0;
                        }

diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index e0e50a9dbe9c13d26c7ec08a5d0f7f36450f3893..19e49c8cf7505621ddcbe435b67c9deb3e544431 100644 (file)
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -188,8 +188,8 @@ static void bfs_evict_inode(struct inode *inode)
 
        truncate_inode_pages_final(&inode->i_data);
        if (inode->i_nlink)
-               sync_mapping_buffers(&inode->i_data);
-       invalidate_inode_buffers(inode);
+               mmb_sync(&BFS_I(inode)->i_metadata_bhs);
+       mmb_invalidate(&BFS_I(inode)->i_metadata_bhs);
        clear_inode(inode);
 
        if (inode->i_nlink)
@@ -259,6 +259,8 @@ static struct inode *bfs_alloc_inode(struct super_block *sb)
        bi = alloc_inode_sb(sb, bfs_inode_cachep, GFP_KERNEL);
        if (!bi)
                return NULL;
+       mmb_init(&bi->i_metadata_bhs, &bi->vfs_inode.i_data);
+
        return &bi->vfs_inode;
 }