diff options
Diffstat (limited to 'arch/sh/mm/mmap.c')
| -rw-r--r-- | arch/sh/mm/mmap.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c index 1b5fdfb..afeb710 100644 --- a/arch/sh/mm/mmap.c +++ b/arch/sh/mm/mmap.c @@ -14,10 +14,10 @@ #include <asm/page.h> #include <asm/processor.h> -#ifdef CONFIG_MMU unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */ EXPORT_SYMBOL(shm_align_mask); +#ifdef CONFIG_MMU /* * To avoid cache aliases, we map the shared page with same color. */ @@ -54,7 +54,8 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, /* We do not accept a shared mapping if it would violate * cache aliasing constraints. */ - if ((flags & MAP_SHARED) && (addr & shm_align_mask)) + if ((flags & MAP_SHARED) && + ((addr - (pgoff << PAGE_SHIFT)) & shm_align_mask)) return -EINVAL; return addr; } |
