Commit 04903664 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] remove HASH_HIGHMEM 



It has no users and it's doubtful that we'll need it again.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 93f210dd

include/linux/bootmem.h

+1 −2
Original line number Diff line number Diff line
@@ -119,8 +119,7 @@ extern void *alloc_large_system_hash(const char *tablename, 
				     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.

mm/page_alloc.c

+1 −1
Original line number Diff line number Diff line
@@ -3226,7 +3226,7 @@ void *__init alloc_large_system_hash(const char *tablename, 
	/* 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;