Author: alc Date: Sat Nov 2 17:08:20 2013 New Revision: 257549 URL: http://svnweb.freebsd.org/changeset/base/257549
Log: Don't create a distinct free page pool for segregating allocations that are accessed through the direct map unless the kernel configuration actually includes a direct map. Only a few configurations do, and for the rest the unnecessary free page pool is a small pessimization. Tested by: zbb MFC after: 6 weeks Modified: head/sys/arm/include/vmparam.h Modified: head/sys/arm/include/vmparam.h ============================================================================== --- head/sys/arm/include/vmparam.h Sat Nov 2 15:13:02 2013 (r257548) +++ head/sys/arm/include/vmparam.h Sat Nov 2 17:08:20 2013 (r257549) @@ -82,15 +82,21 @@ #define VM_PHYSSEG_DENSE /* - * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool - * from which physical pages are allocated and VM_FREEPOOL_DIRECT is - * the pool from which physical pages for small UMA objects are - * allocated. + * Create two or three free page pools depending on the existence of a direct + * map: VM_FREEPOOL_DEFAULT is the default pool from which physical pages are + * allocated, and VM_FREEPOOL_DIRECT is the pool from which physical pages for + * small UMA objects are allocated. */ +#ifdef ARM_USE_SMALL_ALLOC #define VM_NFREEPOOL 3 #define VM_FREEPOOL_CACHE 2 -#define VM_FREEPOOL_DEFAULT 0 #define VM_FREEPOOL_DIRECT 1 +#else +#define VM_NFREEPOOL 2 +#define VM_FREEPOOL_CACHE 1 +#define VM_FREEPOOL_DIRECT 0 +#endif +#define VM_FREEPOOL_DEFAULT 0 /* * we support 2 free lists: _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
