lkml.org 
[lkml]   [2006]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.16-rc regression: m68k CONFIG_RMW_INSNS=n compile broken


On Sat, 4 Mar 2006, Adrian Bunk wrote:
>
> It seems the problem is that in the CONFIG_RMW_INSNS=n case, there's no
> cmpxchg #define in include/asm-m68k/system.h required for the
> atomic_add_unless #define in include/asm-m68k/atomic.h.

Hmm. It seems like it never has been there.. Do you know what brought this
on? Was it Nick's RCU changes from "rcuref_dec_and_test()" to
"atomic_dec_and_test()" and friends?

Judging by your error messages, I _think_ it's the "atomic_inc_not_zero()"
that gets expanded to a cmpxchg() that simply doesn't exist on m68k and
never has.

I guess we've never depended on cmpxchg before. Or am I missing something?

Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2009-11-18 23:46    [W:0.244 / U:1.040 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site