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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-02 18:00:36 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-02 18:15:25 +0100 |
| commit | ca5de58ba746b08c920b2024aaf01aa1500b110d (patch) | |
| tree | 5e1cc6746188775e633dbfa2633ebf1acf79c1d0 /arch/s390/kernel/vdso64 | |
| parent | s390/vdso: ectg gettime support for CLOCK_THREAD_CPUTIME_ID (diff) | |
| download | linux-dev-ca5de58ba746b08c920b2024aaf01aa1500b110d.tar.xz linux-dev-ca5de58ba746b08c920b2024aaf01aa1500b110d.zip | |
s390/time,vdso: fix clock_gettime for CLOCK_MONOTONIC
With git commit 79c74ecbebf76732f91b82a62ce7fc8a88326962
"s390/time,vdso: convert to the new update_vsyscall interface"
the new update_vsyscall function already does the sum of xtime
and wall_to_monotonic. The old update_vsyscall function only
copied the wall_to_monotonic offset. The vdso code needs to be
modified to take this into consideration.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/vdso64')
| -rw-r--r-- | arch/s390/kernel/vdso64/clock_gettime.S | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S index 4007007a9652..91940ed33a4a 100644 --- a/arch/s390/kernel/vdso64/clock_gettime.S +++ b/arch/s390/kernel/vdso64/clock_gettime.S @@ -37,13 +37,11 @@ __kernel_clock_gettime: jnz 0b stck 48(%r15) /* Store TOD clock */ lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ - lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */ - alg %r0,__VDSO_WTOM_SEC(%r5) /* + wall_to_monotonic.sec */ + lg %r0,__VDSO_WTOM_SEC(%r5) lg %r1,48(%r15) sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ - alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ - alg %r1,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */ + alg %r1,__VDSO_WTOM_NSEC(%r5) srlg %r1,%r1,0(%r2) /* >> tk->shift */ clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ jne 0b |