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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 22:34:17 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 22:34:17 +0100 |
| commit | b391738bd1c708fe85592410c6a7c9752689481d (patch) | |
| tree | e4a27d1b98725dcc42eae65f72a9ac4375420faa /arch/x86/mm/pat.c | |
| parent | Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| parent | x86: pat: Remove ioremap_default() (diff) | |
| download | linux-b391738bd1c708fe85592410c6a7c9752689481d.tar.xz linux-b391738bd1c708fe85592410c6a7c9752689481d.zip | |
Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: pat: Remove ioremap_default()
x86: pat: Clean up req_type special case for reserve_memtype()
x86: Relegate CONFIG_PAT and CONFIG_MTRR configurability to EMBEDDED
Diffstat (limited to 'arch/x86/mm/pat.c')
| -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 a81b7e73275d..66b55d6e69ed 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -356,9 +356,6 @@ 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 @@ -378,9 +375,7 @@ 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; |