linux-next: build failure after merge of the btrfs tree

Hi Chris,

After merging the btrfs tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

fs/btrfs/disk-io.c:34:28: fatal error: asm/cpufeature.h: No such file or directory

Caused by commit 2fcfff234500 ("Btrfs: do not async metadata csumming in
certain situations").  Only x86 has asm/cupfeature.h

I have dropped the btrfs tree for today.  This is exactly why your tree
should have been in linux-next some time ago ... :-(
-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au