[linux-lvm] Patching Linus' pre- kernels?

[Hugo Mills <hugo@carfax.org.uk>]

   Hi - 

   I've just tried to patch a recent, but otherwise virgin, Linus
kernel, and had the kernel compile fail:

make[2]: Leaving directory `/usr/src/linux-2.4.5-pre3/arch/i386/lib'
ld -m elf_i386 -T /usr/src/linux-2.4.5-pre3/arch/i386/vmlinux.lds -e stext arch/i386/kernel/head.o arch/i386/kernel/init_task.o init/main.o init/version.o \
        --start-group \
        arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
        drivers/block/block.o drivers/char/char.o drivers/misc/misc.o drivers/net/net.o drivers/media/media.o  drivers/parport/driver.o drivers/char/agp/agp.o drivers/char/drm/drm.o drivers/ide/idedriver.o drivers/scsi/scsidrv.o drivers/cdrom/driver.o drivers/pci/driver.o drivers/video/video.o drivers/md/mddev.o \
        net/network.o \
        /usr/src/linux-2.4.5-pre3/arch/i386/lib/lib.a /usr/src/linux-2.4.5-pre3/lib/lib.a /usr/src/linux-2.4.5-pre3/arch/i386/lib/lib.a \
        --end-group \
        -o vmlinux
drivers/md/mddev.o: In function `__update_hardblocksize':
drivers/md/mddev.o(.text+0x22f1): undefined reference to `get_hardblocksize'
drivers/md/mddev.o(.text+0x2332): undefined reference to `get_hardblocksize'
make[1]: *** [vmlinux] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.5-pre3'
make: *** [stamp-build] Error 2

I'm using:
Debian testing
Kernel 2.4.5-pre3
LVM 0.9.1-beta7

   Is the beta7 LVM expected to patch against Linus' pre- kernels? If
it is, what have I done wrong? If not, which kernels should I be able
to patch against?

   Also, are there any potential problems with running LVM and devfs
together?

   Thanks,
   Hugo.

--
    ---- Hugo Mills --- The Creature from the Black Logon ----
hugo@lug.org.uk     hugo@carfax.nildram.co.uk     hugo@soton.ac.uk
     ---- "We did a risk management review. We concluded ----
            that there was no risk of any management."