# space can be handled with less contention: split it at this NR_CPUS.
# 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's debug spinlock_t is too large for the 32-bit struct page.
-# ARM26 and SPARC32 and PPC64 may use one page for multiple page tables.
+# PA-RISC 7xxx's spinlock_t would enlarge struct page from 32 to 44 bytes.
#
config SPLIT_PTLOCK_CPUS
int
default "4096" if ARM && !CPU_CACHE_VIPT
- default "4096" if PARISC && DEBUG_SPINLOCK && !64BIT
- default "4096" if ARM26 || SPARC32 || PPC64
+ default "4096" if PARISC && !PA20
default "4"