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-rw-r--r--lib/Kconfig.debug15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ecb9e75..8bfd1ac 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1400,6 +1400,21 @@ config RCU_EQS_DEBUG
endmenu # "RCU Debugging"
+config DEBUG_WQ_FORCE_RR_CPU
+ bool "Force round-robin CPU selection for unbound work items"
+ depends on DEBUG_KERNEL
+ default n
+ help
+ Workqueue used to implicitly guarantee that work items queued
+ without explicit CPU specified are put on the local CPU. This
+ guarantee is no longer true and while local CPU is still
+ preferred work items may be put on foreign CPUs. Kernel
+ parameter "workqueue.debug_force_rr_cpu" is added to force
+ round-robin CPU selection to flush out usages which depend on the
+ now broken guarantee. This config option enables the debug
+ feature by default. When enabled, memory and cache locality will
+ be impacted.
+
config DEBUG_BLOCK_EXT_DEVT
bool "Force extended block device numbers and spread them"
depends on DEBUG_KERNEL
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