Messages in this thread | | | Date | Tue, 2 Nov 2004 15:04:26 -0800 | From | Andrew Morton <> | Subject | Re: fix iounmap and a pageattr memleak (x86 and x86-64) |
| |
Dave Hansen <haveblue@us.ibm.com> wrote: > > Andrea Arcangeli wrote: > > Still I recommend investigating _why_ debug_pagealloc is violating the > > API. It might not be necessary to wait for the pageattr universal > > feature to make DEBUG_PAGEALLOC work safe. > > This makes the DEBUG_PAGEALLOC stuff symmetric enough to boot for me, > and it's pretty damn simple. Any ideas for doing this without bloating > 'struct page', even in the debugging case?
You could use a bit from page->flags. But CONFIG_DEBUG_PAGEALLOC uses so much additional memory nobody would notice anyway.
hm. Or maybe page->mapcount is available on these pages. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |