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authorYinghai Lu <yinghai@kernel.org>2010-08-25 13:39:18 -0700
committerH. Peter Anvin <hpa@zytor.com>2010-08-27 11:13:54 -0700
commit6f2a75369e7561e800d86927ecd83c970996b21f (patch)
tree558e90d291a6dfc17cd950805bf5f56cb2b690e1 /arch/x86/mm/init_64.c
parenta587d2daebcd2bc159d4348b6a7b028950a6d803 (diff)
x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
memblock_memory_size() will return memory size in memblock.memory.region. memblock_free_memory_size() will return free memory size in memblock.memory.region. So We can get exact reseved size in specified range. Set the size right after initmem_init(), because later bootmem API will get area above 16M. (except some fallback). Later after we remove the bootmem, We could call that just before paging_init(). Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/mm/init_64.c')
-rw-r--r--arch/x86/mm/init_64.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 592b2368062..d6d408467c4 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -53,8 +53,6 @@
#include <asm/init.h>
#include <linux/bootmem.h>
-static unsigned long dma_reserve __initdata;
-
static int __init parse_direct_gbpages_off(char *arg)
{
direct_gbpages = 0;
@@ -821,11 +819,6 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
reserve_bootmem(phys, len, flags);
- if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) {
- dma_reserve += len / PAGE_SIZE;
- set_dma_reserve(dma_reserve);
- }
-
return 0;
}
#endif