diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 24 | ||||
| -rw-r--r-- | lib/dynamic_queue_limits.c | 1 |
2 files changed, 25 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 9739c0b45e9..05037dc9bde 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -931,6 +931,30 @@ config RCU_CPU_STALL_VERBOSE Say Y if you want to enable such checks. +config RCU_CPU_STALL_INFO + bool "Print additional diagnostics on RCU CPU stall" + depends on (TREE_RCU || TREE_PREEMPT_RCU) && DEBUG_KERNEL + default n + help + For each stalled CPU that is aware of the current RCU grace + period, print out additional per-CPU diagnostic information + regarding scheduling-clock ticks, idle state, and, + for RCU_FAST_NO_HZ kernels, idle-entry state. + + Say N if you are unsure. + + Say Y if you want to enable such diagnostics. + +config RCU_TRACE + bool "Enable tracing for RCU" + depends on DEBUG_KERNEL + help + This option provides tracing in RCU which presents stats + in debugfs for debugging RCU implementation. + + Say Y here if you want to enable RCU tracing + Say N if you are unsure. + config KPROBES_SANITY_TEST bool "Kprobes sanity tests" depends on DEBUG_KERNEL diff --git a/lib/dynamic_queue_limits.c b/lib/dynamic_queue_limits.c index 3d1bdcdd7db..6ab4587d052 100644 --- a/lib/dynamic_queue_limits.c +++ b/lib/dynamic_queue_limits.c @@ -7,6 +7,7 @@ #include <linux/types.h> #include <linux/ctype.h> #include <linux/kernel.h> +#include <linux/jiffies.h> #include <linux/dynamic_queue_limits.h> #define POSDIFF(A, B) ((A) > (B) ? (A) - (B) : 0) |