diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 3 | ||||
| -rw-r--r-- | lib/flex_proportions.c | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 405c8634d028..3761118d1879 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -805,6 +805,9 @@ config ARCH_HAS_DEBUG_VM_PGTABLE An architecture should select this when it can successfully build and run DEBUG_VM_PGTABLE. +config DEBUG_VM_IRQSOFF + def_bool DEBUG_VM && !PREEMPT_RT + config DEBUG_VM bool "Debug VM" depends on DEBUG_KERNEL diff --git a/lib/flex_proportions.c b/lib/flex_proportions.c index 05cccbcf1661..83332fefa6f4 100644 --- a/lib/flex_proportions.c +++ b/lib/flex_proportions.c @@ -70,6 +70,7 @@ bool fprop_new_period(struct fprop_global *p, int periods) */ if (events <= 1) return false; + preempt_disable_nested(); write_seqcount_begin(&p->sequence); if (periods < 64) events -= events >> periods; @@ -77,6 +78,7 @@ bool fprop_new_period(struct fprop_global *p, int periods) percpu_counter_add(&p->events, -events); p->period += periods; write_seqcount_end(&p->sequence); + preempt_enable_nested(); return true; } |