From: Andrew Morton It has no users and it's doubtful that we'll need it again. Cc: "David S. Miller" Signed-off-by: Andrew Morton --- include/linux/bootmem.h | 3 +-- mm/page_alloc.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff -puN include/linux/bootmem.h~remove-hash_highmem include/linux/bootmem.h --- a/include/linux/bootmem.h~remove-hash_highmem +++ a/include/linux/bootmem.h @@ -119,8 +119,7 @@ extern void *alloc_large_system_hash(con unsigned int *_hash_mask, unsigned long limit); -#define HASH_HIGHMEM 0x00000001 /* Consider highmem? */ -#define HASH_EARLY 0x00000002 /* Allocating during early boot? */ +#define HASH_EARLY 0x00000001 /* Allocating during early boot? */ /* Only NUMA needs hash distribution. * IA64 is known to have sufficient vmalloc space. diff -puN mm/page_alloc.c~remove-hash_highmem mm/page_alloc.c --- a/mm/page_alloc.c~remove-hash_highmem +++ a/mm/page_alloc.c @@ -3217,7 +3217,7 @@ void *__init alloc_large_system_hash(con /* allow the kernel cmdline to have a say */ if (!numentries) { /* round applicable memory size up to nearest megabyte */ - numentries = (flags & HASH_HIGHMEM) ? nr_all_pages : nr_kernel_pages; + numentries = nr_kernel_pages; numentries += (1UL << (20 - PAGE_SHIFT)) - 1; numentries >>= 20 - PAGE_SHIFT; numentries <<= 20 - PAGE_SHIFT; _