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| author | Christoph Lameter <clameter@sgi.com> | 2006-09-25 23:31:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 08:48:46 -0700 |
| commit | e53ef38d05dd59ed281a35590e4a5b64d8ff4c52 (patch) | |
| tree | 42e525df84454e89abd6cab8d7983a6a0188b6bb /arch/um | |
| parent | fb0e7942bdcbbd2f90e61cb4cfa4fa892a873f8a (diff) | |
| download | blackbird-op-linux-e53ef38d05dd59ed281a35590e4a5b64d8ff4c52.tar.gz blackbird-op-linux-e53ef38d05dd59ed281a35590e4a5b64d8ff4c52.zip | |
[PATCH] reduce MAX_NR_ZONES: make ZONE_HIGHMEM optional
Make ZONE_HIGHMEM optional
- ifdef out code and definitions related to CONFIG_HIGHMEM
- __GFP_HIGHMEM falls back to normal allocations if there is no
ZONE_HIGHMEM
- GFP_ZONEMASK becomes 0x01 if there is no DMA32 and no HIGHMEM
zone.
[jdike@addtoit.com: build fix]
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Christoph Lameter <clameter@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/kernel/mem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index b39e624c3291..b1cd5c6e468b 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -226,7 +226,9 @@ void paging_init(void) for(i=0;i<sizeof(zones_size)/sizeof(zones_size[0]);i++) zones_size[i] = 0; zones_size[ZONE_DMA] = (end_iomem >> PAGE_SHIFT) - (uml_physmem >> PAGE_SHIFT); +#ifdef CONFIG_HIGHMEM zones_size[ZONE_HIGHMEM] = highmem >> PAGE_SHIFT; +#endif free_area_init(zones_size); /* |
