On Tue, Aug 14, 2012 at 01:55:16AM +0800, Fengguang Wu wrote:

quoted

quoted

I'd suggest to fix it in m68k and make atomic64_t generally available.

Fengguang in your testing on any architechtures is atomic64_t missing on anything except some m68k subarchtechtures?

Eric, it only complaints for m68k, among the architechtures the build
tests covered (alpha arm avr32 blackfin cris frv h8300 i386 ia64 m32r
m68k mips mn10300 openrisc parisc powerpc s390 sh sparc sparc64 tile
um x86_64 xtensa).

Sorry, I must missed something (in my system, build errors are only
recorded on first sight)..

wfg /c/linux% for arch in arch/*/; do grep -ir -q atomic64 $arch || echo $arch; done
arch/c6x/
arch/h8300/
arch/mn10300/
arch/score/
arch/unicore32/

So the above archs are likely still missing atomic64_t support.
However it should be trivial to add support to them, by adding
"select GENERIC_ATOMIC64" lines to them.

Thanks,
Fengguang