I suspect that inode_attach_wb() use is rather unidiomatic, but that's a separate story - in any case, its use is a few times per mount *and* the route by which we access that inode is "the host of address_space a page belongs to". Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx> --- fs/nilfs2/segment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index aa5290cb7467..15188e799580 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2790,7 +2790,7 @@ int nilfs_attach_log_writer(struct super_block *sb, struct nilfs_root *root) if (!nilfs->ns_writer) return -ENOMEM; - inode_attach_wb(nilfs->ns_bdev->bd_inode, NULL); + inode_attach_wb(nilfs->ns_bdev->bd_mapping->host, NULL); err = nilfs_segctor_start_thread(nilfs->ns_writer); if (unlikely(err)) -- 2.39.2