Heiko Carstens 00d5cf8c59 s390/vtime: Fix virtual timer forwarding ...

[ Upstream commit dbc0fb3567 ]

Since delayed accounting of system time [1] the virtual timer is
forwarded by do_account_vtime() but also vtime_account_kernel(),
vtime_account_softirq(), and vtime_account_hardirq(). This leads
to double accounting of system, guest, softirq, and hardirq time.

Remove accounting from the vtime_account*() family to restore old behavior.

There is only one user of the vtimer interface, which might explain
why nobody noticed this so far.

Fixes: b7394a5f4c ("sched/cputime, s390: Implement delayed accounting of system time") [1]
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-13 17:20:18 +01:00

..

syscalls

s390/syscalls: Avoid creation of arch/arch/ directory

2024-12-05 14:01:14 +01:00

vdso32

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vdso64

s390/vdso: Use one large alternative instead of an alternative branch

2024-09-23 17:57:04 +02:00

.gitignore

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abs_lowcore.c

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alternative.c

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asm-offsets.c

fgraph: Replace fgraph_ret_regs with ftrace_regs

2026-03-04 07:19:36 -05:00

audit.c

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audit.h

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cache.c

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cert_store.c

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compat_audit.c

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compat_linux.c

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compat_linux.h

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compat_ptrace.h

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compat_signal.c

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cpacf.c

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cpcmd.c

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cpufeature.c

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crash_dump.c

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ctlreg.c

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debug.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

diag.c

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dis.c

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dumpstack.c

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early_printk.c

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early.c

s390/early: Copy last breaking event address to pt_regs

2025-08-20 18:30:33 +02:00

ebcdic.c

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entry.h

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entry.S

s390/entry: Fix last breaking event handling in case of stack corruption

2025-05-18 08:24:47 +02:00

facility.c

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fpu.c

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ftrace.c

ftrace: Make ftrace_regs abstract from direct use

2026-03-04 07:19:36 -05:00

ftrace.h

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guarded_storage.c

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head64.S

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hiperdispatch.c

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idle.c

s390/idle: Fix cpu idle exit cpu time accounting

2026-03-13 17:20:18 +01:00

ima_arch.c

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ipl_vmparm.c

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ipl.c

s390/ipl: Clear SBP flag when bootprog is set

2026-01-08 10:14:25 +01:00

irq.c

s390/idle: Fix cpu idle exit cpu time accounting

2026-03-13 17:20:18 +01:00

jump_label.c

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kdebugfs.c

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kexec_elf.c

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kexec_image.c

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kprobes.c

s390/entry: Mark IRQ entries to fix stack depot warnings

2024-12-09 10:41:03 +01:00

lgr.c

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machine_kexec_file.c

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machine_kexec_reloc.c

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machine_kexec.c

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Makefile

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mcount.S

fgraph: Replace fgraph_ret_regs with ftrace_regs

2026-03-04 07:19:36 -05:00

module.c

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nmi.c

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nospec-branch.c

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nospec-sysfs.c

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numa.c

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os_info.c

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perf_cpum_cf_events.c

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perf_cpum_cf.c

s390/cpum_cf: Deny all sampling events by counter PMU

2025-09-19 16:35:44 +02:00

perf_cpum_sf.c

s390/perf: Disable register readout on sampling events

2026-03-04 07:20:55 -05:00

perf_event.c

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perf_pai_crypto.c

s390/pai: Deny all events not handled by this PMU

2025-09-19 16:35:44 +02:00

perf_pai_ext.c

s390/pai: Deny all events not handled by this PMU

2025-09-19 16:35:44 +02:00

perf_regs.c

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process.c

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processor.c

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ptrace.c

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reipl.S

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relocate_kernel.S

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rethook.c

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rethook.h

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runtime_instr.c

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setup.c

s390/sclp: Initialize sclp subsystem via arch_cpu_finalize_init()

2025-02-08 09:58:07 +01:00

signal.c

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smp.c

s390/smp: Fix fallback CPU detection

2025-12-18 13:54:47 +01:00

stacktrace.c

s390/stacktrace: Use break instead of return statement

2024-12-09 10:41:06 +01:00

sthyi.c

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syscall.c

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sysinfo.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

text_amode31.S

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time.c

s390/stp: Remove udelay from stp_sync_clock()

2025-08-20 18:30:32 +02:00

topology.c

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trace.c

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traps.c

s390/traps: Fix test_monitor_call() inline assembly

2025-03-13 13:01:58 +01:00

unwind_bc.c

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uprobes.c

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uv.c

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vdso.c

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vmcore_info.c

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vmlinux.lds.S

s390/vmlinux.lds.S: Move .vmlinux.info to end of allocatable sections

2025-10-19 16:33:43 +02:00

vtime.c

s390/vtime: Fix virtual timer forwarding

2026-03-13 17:20:18 +01:00

wti.c

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