> On 13 Apr 2017, at 2:31 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Wed, Apr 12, 2017 at 08:42:08PM +0900, Hoeun Ryu wrote: >> >>> On Apr 12, 2017, at 3:02 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: >>> >>>> On Wed, Apr 12, 2017 at 02:01:59PM +0900, Hoeun Ryu wrote: >>>> vm_area_add_early/vm_area_register_early() are used to reserve vmalloc area >>>> during boot process and those virtually mapped areas are never unmapped. >>>> So `OR` VM_STATIC flag to the areas in vmalloc_init() when importing >>>> existing vmlist entries and prevent those areas from being removed from the >>>> rbtree by accident. >>> >>> How would they be removed "by accident"? >> >> I don't mean actual use-cases, but I just want to make it robust against like programming errors. > > Oh, ok. The patch makes sense then, although the changelog could use > a little update. OK, I will. Any other suggestions for code itself ?
