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authorIngo Molnar <mingo@elte.hu>2009-08-31 17:54:18 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-31 18:05:25 +0200
commitbbe69aa57a7374b51242b95a54eefcf0d0393b7e (patch)
treec45e48d11cc9cb81a57c8c27f7243863b117cec8 /arch/s390/kernel/vdso64/clock_gettime.S
parenta417887637e862b434b293404f2a31ad1f282a58 (diff)
parent326ba5010a5429a5a528b268b36a5900d4ab0eba (diff)
Merge commit 'v2.6.31-rc8' into core/locking
Merge reason: we were on -rc4, move to -rc8 before applying a new batch of locking infrastructure changes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/s390/kernel/vdso64/clock_gettime.S')
-rw-r--r--arch/s390/kernel/vdso64/clock_gettime.S11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S
index 79dbfee831e..49106c6e6f8 100644
--- a/arch/s390/kernel/vdso64/clock_gettime.S
+++ b/arch/s390/kernel/vdso64/clock_gettime.S
@@ -88,10 +88,17 @@ __kernel_clock_gettime:
llilh %r4,0x0100
sar %a4,%r4
lghi %r4,0
+ epsw %r5,0
sacf 512 /* Magic ectg instruction */
.insn ssf,0xc80100000000,__VDSO_ECTG_BASE(4),__VDSO_ECTG_USER(4),4
- sacf 0
- sar %a4,%r2
+ tml %r5,0x4000
+ jo 11f
+ tml %r5,0x8000
+ jno 10f
+ sacf 256
+ j 11f
+10: sacf 0
+11: sar %a4,%r2
algr %r1,%r0 /* r1 = cputime as TOD value */
mghi %r1,1000 /* convert to nanoseconds */
srlg %r1,%r1,12 /* r1 = cputime in nanosec */