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authorYinghai Lu <yinghai@kernel.org>2008-10-02 15:46:20 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-03 09:41:55 +0200
commit834836ee6a3a9deadff9394b23db965a08bcde35 (patch)
treece2608783ae4d1e50c72fcaf7bb004f4fc1a5f55 /arch
parent136c82c6f7f12c9bed8bf709f92123077966512c (diff)
x86: mtrr_cleanup try gran_size to less than 1M, v3
J.A. Magallón reported: >> Also, on a 64 bit box with 4Gb, it gives this: >> >> cicely:~# cat /proc/mtrr >> reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1 >> reg01: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 >> reg02: base=0x140000000 (5120MB), size= 512MB: write-back, count=1 >> reg03: base=0x160000000 (5632MB), size= 256MB: write-back, count=1 >> reg04: base=0x80000000 (2048MB), size=2048MB: uncachable, count=1 boundary handling has a problem ... fix it. Reported-by: J.A. Magallón <jamagallon@ono.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/cpu/mtrr/main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 8f1a342b16b..b4a3f0c1a5e 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -1044,7 +1044,7 @@ second_try:
hole_sizek = range0_sizek - state->range_sizek - second_sizek;
/* hole size should be less than half of range0 size */
- if (hole_sizek > (range0_sizek >> 1) &&
+ if (hole_sizek >= (range0_sizek >> 1) &&
range0_sizek >= chunk_sizek) {
range0_sizek -= chunk_sizek;
second_sizek = 0;