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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 /arch
parent4738e1b9cf8f9e28d7de080a5e6ce5d0095ea18f (diff)
downloadop-kernel-dev-4481374ce88ba8f460c8b89f2572027bd27057d0.zip
op-kernel-dev-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 'arch')
-rw-r--r--arch/x86/kernel/microcode_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 0db7969..378e9a8 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -210,8 +210,8 @@ static ssize_t microcode_write(struct file *file, const char __user *buf,
{
ssize_t ret = -EINVAL;
- if ((len >> PAGE_SHIFT) > num_physpages) {
- pr_err("microcode: too much data (max %ld pages)\n", num_physpages);
+ if ((len >> PAGE_SHIFT) > totalram_pages) {
+ pr_err("microcode: too much data (max %ld pages)\n", totalram_pages);
return ret;
}
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