Building tilegx defconfig gets init/exit section errors in xfs.

[Paul Gortmaker]

Hi All,

Recently the tilegx defconfig was added to the linux-next build
coverage, which exposed this.
 
LD      .tmp_vmlinux1
`xfs_qm_exit' referenced in section `.init.text' of fs/built-in.o:
 defined in discarded section `.exit.text' of fs/built-in.o
make[1]: *** [.tmp_vmlinux1] Error 1

http://kisskb.ellerman.id.au/kisskb/buildresult/5941293/

It seemed odd to me, since I didn't think there was anything arch
specific in the init/exit sectioning, so I thought I'd mention it
here, just in case it hasn't been brought up before.

Thanks,
Paul.