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-rw-r--r--mm/Kconfig6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index 77b4980d6143..d4b5fff6ea09 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -158,11 +158,13 @@ config PAGEFLAGS_EXTENDED
# Default to 4 for wider testing, though 8 might be more appropriate.
# ARM's adjust_pte (unused if VIPT) depends on mm-wide page_table_lock.
# PA-RISC 7xxx's spinlock_t would enlarge struct page from 32 to 44 bytes.
+# DEBUG_SPINLOCK and DEBUG_LOCK_ALLOC spinlock_t also enlarge struct page.
#
config SPLIT_PTLOCK_CPUS
int
- default "4096" if ARM && !CPU_CACHE_VIPT
- default "4096" if PARISC && !PA20
+ default "999999" if ARM && !CPU_CACHE_VIPT
+ default "999999" if PARISC && !PA20
+ default "999999" if DEBUG_SPINLOCK || DEBUG_LOCK_ALLOC
default "4"
#