The patch titled
vmi: fix nohz compile
has been added to the -mm tree. Its filename is
vmi-fix-nohz-compile.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: vmi: fix nohz compile
From: Zachary Amsden <zach@xxxxxxxxxx>
More goo from hrtimers integration. We do compile and run properly with NO_HZ
enabled. There was a period when we didn't because of a missing export, but
that was since fixed.
And with the clocksource code now firmly in place, we can get rid of code that
fixes up the wallclock, since this is done in the common infrastructure. This
actually fixes a timer bug as well, that was caused by do_settimeofday no
longer being callable with interrupts disabled due to the use of
on_each_cpu().
Signed-off-by: Zachary Amsden <zach@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/Kconfig | 2 +-
arch/i386/kernel/vmi.c | 1 +
arch/i386/kernel/vmitime.c | 15 ---------------
3 files changed, 2 insertions(+), 16 deletions(-)
diff -puN arch/i386/Kconfig~vmi-fix-nohz-compile arch/i386/Kconfig
--- a/arch/i386/Kconfig~vmi-fix-nohz-compile
+++ a/arch/i386/Kconfig
@@ -220,7 +220,7 @@ config PARAVIRT
config VMI
bool "VMI Paravirt-ops support"
- depends on PARAVIRT && !NO_HZ
+ depends on PARAVIRT
default y
help
VMI provides a paravirtualized interface to multiple hypervisors
diff -puN arch/i386/kernel/vmi.c~vmi-fix-nohz-compile arch/i386/kernel/vmi.c
--- a/arch/i386/kernel/vmi.c~vmi-fix-nohz-compile
+++ a/arch/i386/kernel/vmi.c
@@ -934,6 +934,7 @@ void __init vmi_init(void)
#ifdef CONFIG_X86_IO_APIC
no_timer_check = 1;
#endif
+ no_sync_cmos_clock = 1;
local_irq_restore(flags & X86_EFLAGS_IF);
}
diff -puN arch/i386/kernel/vmitime.c~vmi-fix-nohz-compile arch/i386/kernel/vmitime.c
--- a/arch/i386/kernel/vmitime.c~vmi-fix-nohz-compile
+++ a/arch/i386/kernel/vmitime.c
@@ -153,13 +153,6 @@ static void vmi_get_wallclock_ts(struct
ts->tv_sec = wallclock;
}
-static void update_xtime_from_wallclock(void)
-{
- struct timespec ts;
- vmi_get_wallclock_ts(&ts);
- do_settimeofday(&ts);
-}
-
unsigned long vmi_get_wallclock(void)
{
struct timespec ts;
@@ -197,18 +190,10 @@ void __init vmi_time_init(void)
set_intr_gate(LOCAL_TIMER_VECTOR, apic_vmi_timer_interrupt);
#endif
- no_sync_cmos_clock = 1;
-
- vmi_get_wallclock_ts(&xtime);
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
-
real_cycles_accounted_system = read_real_cycles();
- update_xtime_from_wallclock();
per_cpu(process_times_cycles_accounted_cpu, 0) = read_available_cycles();
cycles_per_sec = vmi_timer_ops.get_cycle_frequency();
-
cycles_per_jiffy = cycles_per_sec;
(void)do_div(cycles_per_jiffy, HZ);
cycles_per_alarm = cycles_per_sec;
_
Patches currently in -mm which might be from zach@xxxxxxxxxx are
vmi-timer-fixes-round-two.patch
vmi-sched-clock-paravirt-op-fix.patch
vmi-cpu-cycles-fix.patch
vmi-fix-highpte.patch
vmi-paravirt-drop-udelay-op.patch
vmi-pit-override.patch
vmi-fix-nohz-compile.patch
vmi-apic-ops.patch
vmi-smp-fixes.patch
make-struct-vmi_ops-static.patch
xen-paravirt_ops-rename-struct-paravirt_patch-to-paravirt_patch_site-for-clarity.patch
xen-paravirt_ops-use-patch-site-ids-computed-from-offset-in-paravirt_ops-structure.patch
xen-paravirt_ops-fix-patch-site-clobbers-to-include-return-register.patch
xen-paravirt_ops-consistently-wrap-paravirt-ops-callsites-to-make-them-patchable.patch
xen-paravirt_ops-add-common-patching-machinery.patch
xen-paravirt_ops-add-nosegneg-capability-to-the-vsyscall-page-notes.patch
-
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