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092b8f3488
kernel_optimize_test/arch/powerpc/kernel
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Paul Mackerras 092b8f3488 powerpc: Keep xtime and gettimeofday in sync 
This fixes a regression which was introduced by moving ppc32 to use
the same sort of lockless gettimeofday as ppc64 has been using for
some time.  This involves getting the timebase and performing some
simple arithmetic to convert it to seconds and microseconds.  However,
the factor and offset used there weren't being updated when NTP
varied the tick length using adjtimex.  64-bit didn't notice the
problem because it had a hook in the 32-bit adjtimex compat routine
that attempted to work out what the generic timekeeping code would
do and alter the factor and offset to match.  However, that code
was very complex and it wasn't clear that it still matched what the
generic code would do.

Now we use the generic current_tick_length() routine that was recently
added to check that the current tick will be as long as we expect; if
not we recompute the factor and offset.  This keeps gettimeofday and
xtime in sync.  In addition we check that gettimeofday hasn't got ahead
of xtime on each timer interrupt; if it has, we resync.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-20 10:38:56 +11:00
..
vdso32 [PATCH] powerpc: Add some missing .gitignore's 2006-01-11 15:35:35 +11:00
vdso64 [PATCH] powerpc: Add some missing .gitignore's 2006-01-11 15:35:35 +11:00
align.c [PATCH] powerpc: merge align.c 2005-11-18 14:39:23 +11:00
asm-offsets.c [PATCH] powerpc: Remove lppaca structure from the PACA 2006-01-13 21:17:39 +11:00
binfmt_elf32.c ppc64: merge binfmt_elf32.c 2005-10-13 13:40:54 +10:00
btext.c [PATCH] powerpc: Remove device_node addrs/n_addr 2006-01-09 14:53:55 +11:00
cpu_setup_power4.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
cputable.c [PATCH] powerpc: oprofile cpu type names clash with other code 2006-01-14 11:12:16 +11:00
crash_dump.c powerpc: Fix compile error when CONFIG_PROC_VMCORE is not defined 2006-01-11 15:30:07 +11:00
crash.c [PATCH] powerpc: Fix kdump copy regs and dynamic allocate per-cpu crash notes 2006-01-15 13:14:42 +11:00
dma_64.c [PATCH] powerpc: IBMEBUS bus support 2006-01-09 14:49:06 +11:00
entry_32.S [PATCH] TIF_RESTORE_SIGMASK support for arch/powerpc 2006-01-18 19:20:30 -08:00
entry_64.S [PATCH] TIF_RESTORE_SIGMASK support for arch/powerpc 2006-01-18 19:20:30 -08:00
firmware.c [PATCH] powerpc: Move various ppc64 files with no ppc32 equivalent to powerpc 2005-11-10 11:24:04 +11:00
fpu.S powerpc/64: Fix bug in setting floating-point exception mode 2006-02-07 13:55:30 +11:00
head_4xx.S powerpc: Rename asm offset TRAP to _TRAP for 32-bit 2005-10-28 22:45:25 +10:00
head_8xx.S powerpc: Rename asm offset TRAP to _TRAP for 32-bit 2005-10-28 22:45:25 +10:00
head_32.S powerpc: set CONFIG_PPC_OF=y always for ARCH=powerpc 2006-01-09 20:17:01 +11:00
head_44x.S [PATCH] powerpc: replace use of _GLOBAL with .globl 2005-10-17 21:43:12 +10:00
head_64.S [PATCH] powerpc: Don't use toc in decrementer_iSeries_masked 2006-02-07 21:51:53 +11:00
head_fsl_booke.S [PATCH] Update email address for Kumar 2005-11-13 18:14:10 -08:00
ibmebus.c [PATCH] powerpc: IBMEBUS bus support 2006-01-09 14:49:06 +11:00
idle_6xx.S powerpc: Use reg.h instead of processor.h when we just want reg names 2005-10-10 22:20:10 +10:00
idle_64.c powerpc: Move remaining .c files from arch/ppc64 to arch/powerpc 2005-11-18 15:43:34 +11:00
idle_power4.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
init_task.c powerpc: make process.c suitable for both 32-bit and 64-bit 2005-10-10 22:29:05 +10:00
iomap.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
iommu.c [PATCH] powerpc: IOMMU SG paranoia 2006-02-07 21:28:38 +11:00
irq.c [PATCH] powerpc: Remove lppaca structure from the PACA 2006-01-13 21:17:39 +11:00
kprobes.c [PATCH] kprobes: fix race in recovery of reentrant probe 2006-01-11 18:42:12 -08:00
legacy_serial.c [PATCH] CONFIG_ISA does not make sense for CONFIG_PPC_PSERIES 2006-02-01 08:53:08 -08:00
lparcfg.c [PATCH] powerpc: Remove lppaca structure from the PACA 2006-01-13 21:17:39 +11:00
lparmap.c [PATCH] powerpc: Fix iSeries bug in VMALLOCBASE/VMALLOC_START consolidation 2006-01-09 15:06:06 +11:00
machine_kexec_32.c [PATCH] powerpc: Merge kexec 2006-01-09 14:48:52 +11:00
machine_kexec_64.c [PATCH] powerpc: Add arch dependent basic infrastructure for Kdump. 2006-01-09 14:52:28 +11:00
machine_kexec.c [PATCH] powerpc: remove remaining crash_notes variable from machine_kexec.c 2006-01-11 14:48:02 +11:00
Makefile ppc: Use the system call table from arch/powerpc/kernel/systbl.S 2006-02-10 16:02:20 +11:00
misc_32.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
misc_64.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
module_64.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
nvram_64.c [PATCH] powerpc: fix large nvram access 2006-01-09 14:53:31 +11:00
of_device.c [PATCH] Add of_platform_bus_type probe and remove methods 2006-01-13 11:26:06 -08:00
paca.c [PATCH] powerpc: Remove lppaca structure from the PACA 2006-01-13 21:17:39 +11:00
pci_32.c powerpc/32: Restore previous version of 32-bit PCI code 2006-01-15 22:05:47 +11:00
pci_64.c [PATCH] powerpc: small pci cleanups 2006-01-12 20:09:30 +11:00
pci_direct_iommu.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pci_dn.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pci_iommu.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pmc.c [PATCH] powerpc: G4+ oprofile support 2006-01-09 15:06:03 +11:00
ppc32.h powerpc: move include/asm-ppc64/ppc32.h to arch/powerpc/kernel 2005-11-03 16:03:28 +11:00
ppc_ksyms.c [PATCH] powerpc: Add MPC834x SYS board to arch/powerpc 2006-01-14 11:13:24 +11:00
proc_ppc64.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
process.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge 2006-01-12 10:21:22 -08:00
prom_init.c [PATCH] powerpc: Refuse to boot a kdump kernel via OF 2006-02-07 21:28:38 +11:00
prom_parse.c [PATCH] powerpc: add refcounting to setup_peg2 and of_get_pci_address 2006-02-07 21:32:45 +11:00
prom.c [PATCH] powerpc: remove pointer/integer confusion in of_find_node_by_name 2006-02-07 21:32:44 +11:00
ptrace32.c [PATCH] use ptrace_get_task_struct in various places 2006-01-08 20:13:51 -08:00
ptrace-common.h [PATCH] powerpc: task_thread_info() 2006-01-12 09:08:57 -08:00
ptrace.c powerpc: move include/asm-ppc64/ptrace-common.h to arch/powerpc/kernel 2005-11-19 20:47:22 +11:00
rtas_flash.c [PATCH] Don't check pointer for NULL before passing it to kfree [arch/powerpc/kernel/rtas_flash.c] 2006-02-07 21:51:53 +11:00
rtas_pci.c [PATCH] powerpc: Save device BARs much earlier in the boot sequence 2006-01-10 15:30:39 +11:00
rtas-proc.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
rtas-rtc.c powerpc: time-of-day fixes for 32-bit CHRP systems 2005-11-18 15:52:38 +11:00
rtas.c [PATCH] powerpc: remove useless call to touch_softlockup_watchdog 2006-02-07 21:32:44 +11:00
semaphore.c powerpc: Merge enough to start building in arch/powerpc. 2005-09-26 16:04:21 +10:00
setup_32.c powerpc: Introduce a new config symbol to control 16550 early debug code 2006-01-10 16:19:05 +11:00
setup_64.c [PATCH] powerpc: Don't overwrite flat device tree with kdump kernel 2006-02-07 21:32:44 +11:00
setup-common.c [PATCH] powerpc: Allow for ppc_md restart, power_off, and halt to be NULL 2006-01-14 11:12:23 +11:00
setup.h powerpc: create kernel/setup.h 2005-11-09 11:35:26 +11:00
signal_32.c [PATCH] powerpc signal __user annotations 2006-02-08 01:03:46 -05:00
signal_64.c [PATCH] powerpc signal __user annotations 2006-02-08 01:03:46 -05:00
smp-tbsync.c powerpc: Merge smp-tbsync.c (the generic timebase sync routine) 2005-11-04 13:28:58 +11:00
smp.c [PATCH] powerpc: avoid timer interrupt replay effect when onlining cpu 2006-02-07 21:51:54 +11:00
sys_ppc32.c powerpc: Keep xtime and gettimeofday in sync 2006-02-20 10:38:56 +11:00
syscalls.c [PATCH] ppc64: fix time syscall 2006-01-09 15:47:13 +11:00
sysfs.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
systbl.S [PATCH] powerpc: unshare system call registration 2006-02-10 16:34:54 +11:00
time.c powerpc: Keep xtime and gettimeofday in sync 2006-02-20 10:38:56 +11:00
traps.c [PATCH] cell: enable pause(0) in cpu_idle 2006-01-09 15:44:32 +11:00
udbg_16550.c [PATCH] powerpc: fix compile warning in udbg_init_maple_realmode 2006-02-07 21:51:52 +11:00
udbg.c [PATCH] powerpc: Make early debugging configurable via Kconfig 2006-01-11 14:48:26 +11:00
vdso.c mm: re-architect the VM_UNPAGED logic 2005-11-28 14:34:23 -08:00
vecemu.c [PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc 2005-09-21 19:21:07 +10:00
vector.S powerpc: Use reg.h instead of processor.h when we just want reg names 2005-10-10 22:20:10 +10:00
vio.c [PATCH] Add vio_bus_type probe and remove methods 2006-01-13 11:26:07 -08:00
vmlinux.lds.S powerpc: Fix vmlinux.lds.S for 32-bit 2005-11-05 10:36:59 +11:00