diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/mm/pat.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index e78cd0e..81fb753 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -355,9 +355,6 @@ static int free_ram_pages_type(u64 start, u64 end) * - _PAGE_CACHE_UC_MINUS * - _PAGE_CACHE_UC * - * req_type will have a special case value '-1', when requester want to inherit - * the memory type from mtrr (if WB), existing PAT, defaulting to UC_MINUS. - * * If new_type is NULL, function will return an error if it cannot reserve the * region with req_type. If new_type is non-NULL, function will return * available type in new_type in case of no error. In case of any error @@ -377,9 +374,7 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, if (!pat_enabled) { /* This is identical to page table setting without PAT */ if (new_type) { - if (req_type == -1) - *new_type = _PAGE_CACHE_WB; - else if (req_type == _PAGE_CACHE_WC) + if (req_type == _PAGE_CACHE_WC) *new_type = _PAGE_CACHE_UC_MINUS; else *new_type = req_type & _PAGE_CACHE_MASK; |
