On 8/11/05, Andrew Morton <[EMAIL PROTECTED]> wrote: > Magnus Damm <[EMAIL PROTECTED]> wrote: > > > > On 8/11/05, Andrew Morton <[EMAIL PROTECTED]> wrote: > > > Mel Gorman <[EMAIL PROTECTED]> wrote: > > > > The majority of pages I am seeing no longer have page->mapping set. Does > > > > this mean they are in the process of being cleared up? > > > > > > They're just anonymous pages, aren't they? But you said "pages that are > > > being used for inodes". Confused. > > > > I thought page->mapping was used by rmap for both inode-backed and > > anonymous pages. And the PAGE_MAPPING_ANON bit was used to determine > > that page->mapping points to struct anon_vma instead of struct > > address_space. > > > > When is page->mapping NULL? > > > > mm.h:page_mapping() handles all that.
Yes, thanks, but I believe that page->mapping is never NULL for anonymous pages. Does not all anonymous pages have page->mapping pointing to struct anon_vma? / magnus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
