diff options
| author | Christoph Lameter <clameter@sgi.com> | 2008-02-27 11:07:10 -0800 |
|---|---|---|
| committer | Christoph Lameter <clameter@sgi.com> | 2008-02-27 11:07:10 -0800 |
| commit | 9ef64cb4320df821638b508f79aa8b858cca99f0 (patch) | |
| tree | 4efbf0854234f89c6f4413077ec795fc669b5b0a /arch/mips/mm/init.c | |
| parent | 6f157c1d268d5888ca44c589dccd01729c4172f6 (diff) | |
| parent | 7704a8b6fc4a8f51599eb2af4dcf1e2ac9c7e576 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/mips/mm/init.c')
| -rw-r--r-- | arch/mips/mm/init.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 480dec04f55..c7aed133d11 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -211,7 +211,8 @@ void copy_user_highpage(struct page *to, struct page *from, void *vfrom, *vto; vto = kmap_atomic(to, KM_USER1); - if (cpu_has_dc_aliases && page_mapped(from)) { + if (cpu_has_dc_aliases && + page_mapped(from) && !Page_dcache_dirty(from)) { vfrom = kmap_coherent(from, vaddr); copy_page(vto, vfrom); kunmap_coherent(); @@ -234,7 +235,8 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, unsigned long len) { - if (cpu_has_dc_aliases && page_mapped(page)) { + if (cpu_has_dc_aliases && + page_mapped(page) && !Page_dcache_dirty(page)) { void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(vto, src, len); kunmap_coherent(); @@ -253,7 +255,8 @@ void copy_from_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, unsigned long len) { - if (cpu_has_dc_aliases && page_mapped(page)) { + if (cpu_has_dc_aliases && + page_mapped(page) && !Page_dcache_dirty(page)) { void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(dst, vfrom, len); kunmap_coherent(); |