On Thu, Aug 03, 2023 at 09:02:29PM +0100, Matthew Wilcox wrote: > I think something like this would fix it. Jens? Christoph? > > +++ b/fs/romfs/Kconfig > @@ -2,6 +2,7 @@ > config ROMFS_FS > tristate "ROM file system support" > depends on BLOCK || MTD > + select BUFFER_HEAD > help > This is a very small read-only file system mainly intended for > initial ram disks of installation disks, but it could be used for > > romfs has a few options and I spent no time looking at this closely; > maybe not every version of romfs needs buffer heads. It only needs buffer_heads for the block based path. I'll send a patch for it.