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authorJan Beulich <JBeulich@novell.com>2009-09-21 17:03:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-22 07:17:38 -0700
commit4481374ce88ba8f460c8b89f2572027bd27057d0 (patch)
tree6896601b6a1da0e3e932ffa75fcff966c834c02c /drivers/parisc/sba_iommu.c
parent4738e1b9cf8f9e28d7de080a5e6ce5d0095ea18f (diff)
downloadlinux-linaro-stable-4481374ce88ba8f460c8b89f2572027bd27057d0.tar.gz
mm: replace various uses of num_physpages by totalram_pages
Sizing of memory allocations shouldn't depend on the number of physical pages found in a system, as that generally includes (perhaps a huge amount of) non-RAM pages. The amount of what actually is usable as storage should instead be used as a basis here. Some of the calculations (i.e. those not intending to use high memory) should likely even use (totalram_pages - totalhigh_pages). Signed-off-by: Jan Beulich <jbeulich@novell.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Dave Airlie <airlied@linux.ie> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: "David S. Miller" <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/parisc/sba_iommu.c')
-rw-r--r--drivers/parisc/sba_iommu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 123d8fe3427d..57a6d19eba4c 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1390,7 +1390,7 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
** for DMA hints - ergo only 30 bits max.
*/
- iova_space_size = (u32) (num_physpages/global_ioc_cnt);
+ iova_space_size = (u32) (totalram_pages/global_ioc_cnt);
/* limit IOVA space size to 1MB-1GB */
if (iova_space_size < (1 << (20 - PAGE_SHIFT))) {
@@ -1415,7 +1415,7 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
DBG_INIT("%s() hpa 0x%lx mem %ldMB IOV %dMB (%d bits)\n",
__func__,
ioc->ioc_hpa,
- (unsigned long) num_physpages >> (20 - PAGE_SHIFT),
+ (unsigned long) totalram_pages >> (20 - PAGE_SHIFT),
iova_space_size>>20,
iov_order + PAGE_SHIFT);