diff options
| author | Paul Mackerras <paulus@samba.org> | 2007-09-13 15:24:25 (GMT) |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-13 15:24:25 (GMT) |
| commit | b2315372eac9cd9f622c32a93e323cf6f0f03462 (patch) | |
| tree | 9e1faa7cdcddf5d90bec4fb9523742d4cce699a1 /arch/mips/mm/init.c | |
| parent | 5326152fa182b0a16e4abf913ce403e3c7ab53b7 (diff) | |
| parent | c87ce65868bbf9bbea9c3f112ff8315302daf8f2 (diff) | |
| download | linux-fsl-qoriq-b2315372eac9cd9f622c32a93e323cf6f0f03462.tar.xz | |
Merge branch 'linux-2.6' into for-2.6.24
Diffstat (limited to 'arch/mips/mm/init.c')
| -rw-r--r-- | arch/mips/mm/init.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 09d9150..5240432 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -8,6 +8,7 @@ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. */ +#include <linux/bug.h> #include <linux/init.h> #include <linux/module.h> #include <linux/signal.h> @@ -132,6 +133,8 @@ void *kmap_coherent(struct page *page, unsigned long addr) pte_t pte; int tlbidx; + BUG_ON(Page_dcache_dirty(page)); + inc_preempt_count(); idx = (addr >> PAGE_SHIFT) & (FIX_N_COLOURS - 1); #ifdef CONFIG_MIPS_MT_SMTC @@ -208,7 +211,7 @@ void copy_user_highpage(struct page *to, struct page *from, void *vfrom, *vto; vto = kmap_atomic(to, KM_USER1); - if (cpu_has_dc_aliases) { + if (cpu_has_dc_aliases && !Page_dcache_dirty(from)) { vfrom = kmap_coherent(from, vaddr); copy_page(vto, vfrom); kunmap_coherent(); |