From d5cd0343d2878b66e25e044f644563c6bf708833 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger <borntraeger@de.ibm.com> Date: Thu, 19 Feb 2009 15:19:00 +0100 Subject: [PATCH] [S390] Fix timeval regression on s390 commit aa5e97ce4bbc9d5daeec16b1d15bb3f6b7b4f4d4 [PATCH] improve precision of process accounting. Introduced a timing regression: -bash-3.2# time ls real 0m0.006s user 0m1.754s sys 0m1.094s The problem was introduced by an error in cputime_to_timeval. Cputime is now 1/4096 microsecond, therefore, we have to divide the remainder with 4096 to get the microseconds. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/cputime.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 521726430afac..95b0f7db3c69d 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -145,7 +145,7 @@ cputime_to_timeval(const cputime_t cputime, struct timeval *value) value->tv_usec = rp.subreg.even / 4096; value->tv_sec = rp.subreg.odd; #else - value->tv_usec = cputime % 4096000000ULL; + value->tv_usec = (cputime % 4096000000ULL) / 4096; value->tv_sec = cputime / 4096000000ULL; #endif } -- GitLab