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[S390] system.h: Fix compile error for 1 and 2 byte cmpxchg 

commit 024914477e "memcg: move charges of anonymous
swap" revealed that the 1 byte and 2 byte cmpxchg is currently broken:

arch/s390/include/asm/system.h: Assembler messages:
arch/s390/include/asm/system.h:241: Error: junk at end of line: `(%r5)'
make[1]: *** [mm/page_cgroup.o] Error 1
make[1]: *** Waiting for unfinished jobs....

It turned out that commit 987bcdacb1 ([S390] use
inline assembly contraints available with gcc 3.3.3) broke the inline assembly.
The or operands are now in constraint 3 and 4 instead of 2 and 3.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Christian Borntraeger 2010-03-24 11:49:52 +01:00 committed by Martin Schwidefsky
parent a08786568a
commit 1bff779285
1 changed files with 4 additions and 4 deletions
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8
arch/s390/include/asm/system.h
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@ -219,8 +219,8 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
" l %0,%2\n"
"0: nr %0,%5\n"
" lr %1,%0\n"
" or %0,%2\n"
" or %1,%3\n"
" or %0,%3\n"
" or %1,%4\n"
" cs %0,%1,%2\n"
" jnl 1f\n"
" xr %1,%0\n"
@ -240,8 +240,8 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
" l %0,%2\n"
"0: nr %0,%5\n"
" lr %1,%0\n"
" or %0,%2\n"
" or %1,%3\n"
" or %0,%3\n"
" or %1,%4\n"
" cs %0,%1,%2\n"
" jnl 1f\n"
" xr %1,%0\n"