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-rw-r--r--arch/x86/mm/pat.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 227df3ca9bf..5bbc22efe4e 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -215,7 +215,7 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
}
/* Low ISA region is always mapped WB in page table. No need to track */
- if (start >= ISA_START_ADDRESS && (end - 1) <= ISA_END_ADDRESS) {
+ if (is_ISA_range(start, end - 1)) {
if (ret_type)
*ret_type = _PAGE_CACHE_WB;
@@ -415,9 +415,8 @@ int free_memtype(u64 start, u64 end)
}
/* Low ISA region is always mapped WB. No need to track */
- if (start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS) {
+ if (is_ISA_range(start, end - 1))
return 0;
- }
spin_lock(&memtype_lock);
list_for_each_entry(ml, &memtype_list, nd) {