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bfs: Track metadata bhs in fs-private inode part

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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>
This commit is contained in:
Jan Kara 2026-03-26 10:54:30 +01:00 committed by Christian Brauner
parent 6874973e72
commit b0806ac078
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
3 changed files with 17 additions and 6 deletions
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1
fs/bfs/bfs.h
View File

@ -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;
};

16
fs/bfs/dir.c
View File

@ -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;
}

6
fs/bfs/inode.c
View File

@ -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;
}