Huacai Chen 52338415cf timekeeping/vsyscall: Update VDSO data unconditionally ... The update of the VDSO data is depending on __arch_use_vsyscall() returning True. This is a leftover from the attempt to map the features of various architectures 1:1 into generic code. The usage of __arch_use_vsyscall() in the actual vsyscall implementations got dropped and replaced by the requirement for the architecture code to return U64_MAX if the global clocksource is not usable in the VDSO. But the __arch_use_vsyscall() check in the update code stayed which causes the VDSO data to be stale or invalid when an architecture actually implements that function and returns False when the current clocksource is not usable in the VDSO. As a consequence the VDSO implementations of clock_getres(), time(), clock_gettime(CLOCK_.*_COARSE) operate on invalid data and return bogus information. Remove the __arch_use_vsyscall() check from the VDSO update function and update the VDSO data unconditionally. [ tglx: Massaged changelog and removed the now useless implementations in asm-generic/ARM64/MIPS ] Fixes: 44f57d788e ("timekeeping: Provide a generic update_vsyscall() implementation") Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/1571887709-11447-1-git-send-email-chenhc@lemote.com		2019-11-04 23:02:53 +01:00
..
bitops	fls: change parameter to unsigned int	2019-01-04 13:13:46 -08:00
vdso	timekeeping/vsyscall: Update VDSO data unconditionally	2019-11-04 23:02:53 +01:00
4level-fixup.h	mm: make the __PAGETABLE_PxD_FOLDED defines non-empty	2018-11-02 08:31:52 +01:00
5level-fixup.h	include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used	2019-08-13 16:06:52 -07:00
Kbuild	asm-generic: make simd.h a mandatory include/asm header	2019-07-31 21:29:24 +10:00
asm-offsets.h	…
asm-prototypes.h	…
atomic-instrumented.h	locking/atomics: Check atomic headers with sha1sum	2019-02-13 08:07:31 +01:00
atomic-long.h	locking/atomics: Check atomic headers with sha1sum	2019-02-13 08:07:31 +01:00
atomic.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
atomic64.h	locking/atomic: Use s64 for atomic64	2019-06-03 12:32:56 +02:00
audit_change_attr.h	…
audit_dir_write.h	…
audit_read.h	…
audit_signal.h	…
audit_write.h	…
barrier.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
bitops-instrumented.h	asm-generic, x86: add bitops instrumentation for KASAN	2019-07-12 11:05:42 -07:00
bitops.h	…
bitsperlong.h	…
bug.h	bug: move WARN_ON() "cut here" into exception handler	2019-09-25 17:51:41 -07:00
bugs.h	…
cache.h	…
cacheflush.h	asm-generic: fix a compilation warning	2019-07-16 19:23:22 -07:00
checksum.h	…
cmpxchg-local.h	…
cmpxchg.h	…
compat.h	asm-generic: Move common compat types to asm-generic/compat.h	2018-08-29 15:42:20 +02:00
current.h	…
delay.h	…
device.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428	2019-06-05 17:37:16 +02:00
div64.h	asm-generic changes for v5.4	2019-09-17 14:30:30 -07:00
dma-contiguous.h	…
dma-mapping.h	dma-mapping: bypass indirect calls for dma-direct	2018-12-13 21:06:18 +01:00
dma.h	…
early_ioremap.h	…
emergency-restart.h	…
error-injection.h	error-injection: Consolidate override function definition	2019-08-07 13:52:43 +01:00
exec.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
export.h	module: Remove leftover '#undef' from export header	2019-09-12 15:29:46 +02:00
extable.h	…
fb.h	…
fixmap.h	mm: introduce common STRUCT_PAGE_MAX_SHIFT define	2018-12-14 15:05:45 -08:00
flat.h	binfmt_flat: remove the persistent argument from flat_get_addr_from_rp	2019-06-24 09:16:47 +10:00
ftrace.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
futex.h	futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser()	2019-07-22 11:20:10 +02:00
getorder.h	asm-generic: fix -Wtype-limits compiler warnings	2019-08-03 07:02:01 -07:00
gpio.h	…
hardirq.h	…
hugetlb.h	hugetlb: allow to free gigantic pages regardless of the configuration	2019-05-14 09:47:47 -07:00
hw_irq.h	…
ide_iops.h	…
int-ll64.h	…
io.h	asm-generic: don't provide __ioremap	2019-08-30 21:46:27 +02:00
ioctl.h	…
iomap.h	iomap: introduce io{read|write}64_{lo_hi|hi_lo}	2019-01-22 13:39:59 +01:00
irq.h	…
irq_regs.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
irq_work.h	…
irqflags.h	…
kdebug.h	…
kmap_types.h	…
kprobes.h	…
kvm_para.h	…
linkage.h	…
local.h	…
local64.h	…
mcs_spinlock.h	…
memory_model.h	…
mm-arch-hooks.h	…
mm_hooks.h	x86/mpx, mm/core: Fix recursive munmap() corruption	2019-05-09 10:37:17 +02:00
mmiowb.h	asm-generic/mmiowb: Add generic implementation of mmiowb() tracking	2019-04-08 11:59:39 +01:00
mmiowb_types.h	asm-generic/mmiowb: Add generic implementation of mmiowb() tracking	2019-04-08 11:59:39 +01:00
mmu.h	…
mmu_context.h	…
module.h	…
mshyperv.h	clocksource/drivers/hyperv: Add Hyper-V specific sched clock function	2019-08-23 16:59:54 +02:00
msi.h	…
page.h	asm-generic/page.h: fix typo in #error text requiring a real asm/page.h	2019-02-22 21:53:25 +01:00
param.h	…
parport.h	…
pci.h	…
pci_iomap.h	…
percpu.h	percpu: remove PER_CPU_DEF_ATTRIBUTES macro	2018-10-31 08:54:14 -07:00
pgalloc.h	mm: treewide: clarify pgtable_page_{ctor,dtor}() naming	2019-09-26 10:10:44 -07:00
pgtable-nop4d-hack.h	x86/mm: Validate kernel_physical_mapping_init() PTE population	2018-12-05 09:03:06 +01:00
pgtable-nop4d.h	x86/mm: Validate kernel_physical_mapping_init() PTE population	2018-12-05 09:03:06 +01:00
pgtable-nopmd.h	mm: make the __PAGETABLE_PxD_FOLDED defines non-empty	2018-11-02 08:31:52 +01:00
pgtable-nopud.h	x86/mm: Validate kernel_physical_mapping_init() PTE population	2018-12-05 09:03:06 +01:00
pgtable.h	thp: update split_huge_page_pmd() comment	2019-09-24 15:54:10 -07:00
preempt.h	sched/preempt: Use CONFIG_PREEMPTION where appropriate	2019-07-31 19:03:34 +02:00
qrwlock.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
qrwlock_types.h	…
qspinlock.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
qspinlock_types.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
resource.h	…
seccomp.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sections.h	locking/lockdep: check for freed initmem in static_obj()	2019-04-29 10:47:10 +02:00
serial.h	…
set_memory.h	…
shmparam.h	treewide: remove SPDX "WITH Linux-syscall-note" from kernel-space headers	2019-05-14 19:52:48 -07:00
signal.h	…
simd.h	…
spinlock.h	…
statfs.h	…
string.h	…
switch_to.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
syscall.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193	2019-05-30 11:29:21 -07:00
syscalls.h	…
termios-base.h	…
termios.h	…
timex.h	…
tlb.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
tlbflush.h	…
topology.h	…
trace_clock.h	…
uaccess.h	asm-generic: optimize generic uaccess for 8-byte loads and stores	2019-04-23 21:51:41 +02:00
unaligned.h	…
user.h	…
vga.h	…
vmlinux.lds.h	Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2019-09-28 08:14:15 -07:00
vtime.h	…
word-at-a-time.h	…
xor.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47	2019-05-24 17:27:13 +02:00