X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=mm%2FKconfig;h=2310984591ed9e88747f9d4e7693e50eab8013d2;hb=db0480b3a61bd6ad86ead3b8bbad094ab0996932;hp=77b4980d61430ac9d9f731a88fb6b1ecd65cbcd6;hpb=af8e3354b4bbd1ee5a3a55d11a5e1fe37e77f0ba;p=safe%2Fjmp%2Flinux-2.6 diff --git a/mm/Kconfig b/mm/Kconfig index 77b4980..2310984 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" # @@ -210,7 +212,7 @@ config KSM Enable Kernel Samepage Merging: KSM periodically scans those areas of an application's address space that an app has advised may be mergeable. When it finds pages of identical content, it replaces - the many instances by a single resident page with that content, so + the many instances by a single page with that content, so saving memory until one or another app needs to modify the content. Recommended for use with KVM, or with other duplicative applications. See Documentation/vm/ksm.txt for more information: KSM is inactive