XFS & kernel 2.5.40

[stefano <stefano.sartini@xxxxxxxxxxxxxx>]

Here is the error i got compiling latest kernel 2.5.40

Please note that removing xfs support from configure, the kernel 
compiles smoothly and without problems.
Error:

make[1]: Entering directory `/root/linux-2.5.40/init'
  Generating /root/linux-2.5.40/include/linux/compile.h (updated)
  gcc -Wp,-MD,./.version.o.d -D__KERNEL__ -I/root/linux-2.5.40/include 
-Wall -Ws
trict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer 
-fno-strict-aliasing -f
no-common -pipe -mpreferred-stack-boundary=2 -march=i686 
-I/root/linux-2.5.40/ar
ch/i386/mach-generic -nostdinc -iwithprefix include 
-DKBUILD_BASENAME=version
   -c -o version.o version.c
   ld -m elf_i386  -r -o built-in.o main.o version.o do_mounts.o
make[1]: Leaving directory `/root/linux-2.5.40/init'
        ld -m elf_i386 -e stext -T arch/i386/vmlinux.lds.s 
arch/i386/kernel/head
.o arch/i386/kernel/init_task.o  init/built-in.o --start-group 
arch/i386/kernel
/built-in.o  arch/i386/mm/built-in.o  arch/i386/mach-generic/built-in.o 
kernel/b
uilt-in.o mm/built-in.o fs/built-in.o ipc/built-in.o security/built-in.o 
 lib/li
b.a  arch/i386/lib/lib.a  drivers/built-in.o  sound/built-in.o 
arch/i386/pci/bu
ilt-in.o  net/built-in.o --end-group  -o vmlinux
fs/built-in.o: In function `pagebuf_queue_task':
fs/built-in.o(.text+0xa0f84): undefined reference to `queue_task'
fs/built-in.o: In function `pagebuf_iodone':
fs/built-in.o(.text+0xa1073): undefined reference to `queue_task'
fs/built-in.o: In function `pagebuf_iodone_daemon':
fs/built-in.o(.text+0xa1c11): undefined reference to `TQ_ACTIVE'
fs/built-in.o(.text+0xa1c39): undefined reference to `run_task_queue'
make: *** [vmlinux] Error 1

GCC Version:

root@dual:~/linux-2.5.40# gcc --version
gcc (GCC) 3.2

System :

Slackware 8.1 kernel 2.4.19-xfs

thanks in advance,

Stefano Sartini