summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-08-20 08:54:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-08-20 08:54:30 -0700
commite18a5ebc2d507f42ca724581a1039ba058fa12da (patch)
tree9c2378623f5b97f82e1ed31ffb66f21924f35e32 /arch
parent58d4e450a490d5f02183f6834c12550ba26d3b47 (diff)
parent7edaeb6841dfb27e362288ab8466ebdc4972e867 (diff)
downloadlinux-e18a5ebc2d507f42ca724581a1039ba058fa12da.tar.bz2
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull watchdog fix from Thomas Gleixner: "A fix for the hardlockup watchdog to prevent false positives with extreme Turbo-Modes which make the perf/NMI watchdog fire faster than the hrtimer which is used to verify. Slightly larger than the minimal fix, which just would increase the hrtimer frequency, but comes with extra overhead of more watchdog timer interrupts and thread wakeups for all users. With this change we restrict the overhead to the extreme Turbo-Mode systems" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kernel/watchdog: Prevent false positives with turbo modes
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 29a1bf85e507..323cb065be5e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -100,6 +100,7 @@ config X86
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
+ select HARDLOCKUP_CHECK_TIMESTAMP if X86_64
select HAVE_ACPI_APEI if ACPI
select HAVE_ACPI_APEI_NMI if ACPI
select HAVE_ALIGNED_STRUCT_PAGE if SLUB