UDF packet writing

[Alimin Bijosono Oei]

Hi,

Is there going to be an effort to include the patch to write UDF 
filesystem in the Fedora kernel? I tried patching kernel 2.6.5-1.358 
that comes with FC2 with a version-suitable patch from  
http://w1.894.telia.com/~u89404340/patches/packet/2.6/ and then 
recompiled the kernel. After 'make' I got some error messages:
  LD      drivers/block/built-in.o
  CC [M]  drivers/block/floppy.o
  CC [M]  drivers/block/loop.o
include/asm/semaphore.h: In function `loop_thread':
drivers/block/loop.c:499: warning: ignoring return value of 
`down_interruptible', declared with attribute warn_unused_result
  CC [M]  drivers/block/cpqarray.o
  CC [M]  drivers/block/cciss.o
  CC [M]  drivers/block/DAC960.o
  CC [M]  drivers/block/pktcdvd.o
drivers/block/pktcdvd.c: In function `kcdrwd':
drivers/block/pktcdvd.c:1236: error: `PF_IOTHREAD' undeclared (first use 
in this function)
drivers/block/pktcdvd.c:1236: error: (Each undeclared identifier is 
reported only once
drivers/block/pktcdvd.c:1236: error: for each function it appears in.)
make[2]: *** [drivers/block/pktcdvd.o] Error 1
make[1]: *** [drivers/block] Error 2
make: *** [drivers] Error 2

Any ideas what these errors are all about and how to fix it? Or is it 
that patching Fedora kernel with that patch is a no-no and vanilla 
kernel should be used instead (and therefore sacrificing all other 
patches included in Fedora kernel)?

Thanks for any help provided.

Alimin