diff options
Diffstat (limited to 'arch/x86/mm/tlb.c')
| -rw-r--r-- | arch/x86/mm/tlb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 613cd83e8c0..0777f042e40 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -98,6 +98,8 @@ static void flush_tlb_func(void *info) { struct flush_tlb_info *f = info; + inc_irq_stat(irq_tlb_count); + if (f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm)) return; @@ -320,7 +322,7 @@ static ssize_t tlbflush_write_file(struct file *file, if (kstrtos8(buf, 0, &shift)) return -EINVAL; - if (shift > 64) + if (shift < -1 || shift >= BITS_PER_LONG) return -EINVAL; tlb_flushall_shift = shift; |