diff options
Diffstat (limited to 'arch/alpha/kernel/smp.c')
| -rw-r--r-- | arch/alpha/kernel/smp.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index be1a6440e..ab1fb9ab2 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -972,6 +972,33 @@ flush_tlb_range(struct mm_struct *mm, unsigned long start, unsigned long end) flush_tlb_mm(mm); } +static void +ipi_flush_icache_page(void *x) +{ + struct mm_struct *mm = (struct mm_struct *) x; + if (mm == current->active_mm) + __load_new_mm_context(mm); +} + +void +flush_icache_page(struct vm_area_struct *vma, struct page *page) +{ + struct mm_struct *mm = vma->vm_mm; + + if ((vma->vm_flags & VM_EXEC) == 0) + return; + + mm->context = 0; + if (mm == current->active_mm) { + __load_new_mm_context(mm); + if (atomic_read(&mm->mm_users) <= 1) + return; + } + + if (smp_call_function(ipi_flush_icache_page, mm, 1, 1)) { + printk(KERN_CRIT "flush_icache_page: timed out\n"); + } +} int smp_info(char *buffer) |