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authorFrederic Weisbecker <fweisbec@gmail.com>2017-01-31 04:09:45 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 09:14:02 +0100
commite2339a4caa5e83a3da5e76880d81e8a23e97aa16 (patch)
tree25d87a1bcc13287604b0036bdf7d176b23db4ea8 /arch/ia64
parent4c562529f1ded4801f572e6dfcb464e598ef8f15 (diff)
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ia64: Convert vtime to use nsec units directly
There is no need anymore for this cputime_t midlayer. Let's use nsec units directly. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1485832191-26889-30-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/head.S4
-rw-r--r--arch/ia64/kernel/time.c14
2 files changed, 9 insertions, 9 deletions
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index c9b5e942f671..3204fddc439c 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -1031,7 +1031,7 @@ GLOBAL_ENTRY(ia64_native_sched_clock)
END(ia64_native_sched_clock)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
-GLOBAL_ENTRY(cycle_to_cputime)
+GLOBAL_ENTRY(cycle_to_nsec)
alloc r16=ar.pfs,1,0,0,0
addl r8=THIS_CPU(ia64_cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
;;
@@ -1047,7 +1047,7 @@ GLOBAL_ENTRY(cycle_to_cputime)
;;
shrp r8=r9,r8,IA64_NSEC_PER_CYC_SHIFT
br.ret.sptk.many rp
-END(cycle_to_cputime)
+END(cycle_to_nsec)
#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
#ifdef CONFIG_IA64_BRL_EMU
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index f15bca4776a7..faa116822c4c 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -60,7 +60,7 @@ static struct clocksource *itc_clocksource;
#include <linux/kernel_stat.h>
-extern cputime_t cycle_to_cputime(u64 cyc);
+extern u64 cycle_to_nsec(u64 cyc);
void vtime_flush(struct task_struct *tsk)
{
@@ -68,26 +68,26 @@ void vtime_flush(struct task_struct *tsk)
u64 delta;
if (ti->utime)
- account_user_time(tsk, cputime_to_nsecs(cycle_to_cputime(ti->utime)));
+ account_user_time(tsk, cycle_to_nsec(ti->utime));
if (ti->gtime)
- account_guest_time(tsk, cputime_to_nsecs(cycle_to_cputime(ti->gtime)));
+ account_guest_time(tsk, cycle_to_nsec(ti->gtime));
if (ti->idle_time)
- account_idle_time(cputime_to_nsecs(cycle_to_cputime(ti->idle_time)));
+ account_idle_time(cycle_to_nsec(ti->idle_time));
if (ti->stime) {
- delta = cputime_to_nsecs(cycle_to_cputime(ti->stime));
+ delta = cycle_to_nsec(ti->stime);
account_system_index_time(tsk, delta, CPUTIME_SYSTEM);
}
if (ti->hardirq_time) {
- delta = cputime_to_nsecs(cycle_to_cputime(ti->hardirq_time));
+ delta = cycle_to_nsec(ti->hardirq_time);
account_system_index_time(tsk, delta, CPUTIME_IRQ);
}
if (ti->softirq_time) {
- delta = cputime_to_nsecs(cycle_to_cputime(ti->softirq_time));
+ delta = cycle_to_nsec(ti->softirq_time));
account_system_index_time(tsk, delta, CPUTIME_SOFTIRQ);
}