From 2483ec0c6805f54317d793c3a18ab3b55619c4ad Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Fri, 1 Sep 2017 11:06:21 +0200 Subject: [PATCH] mm: don't request scrubbing until dom0 is running There is no need to scrub pages freed during dom0 construction since once dom0 is ready the heap will be scrubbed by scrub_heap_pages() anyway, setting scrub_debug at the end. Signed-off-by: Boris Ostrovsky Reviewed-by: Wei Liu --- xen/common/page_alloc.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c index 2b8bb95369..dbad1e1ca0 100644 --- a/xen/common/page_alloc.c +++ b/xen/common/page_alloc.c @@ -2248,16 +2248,12 @@ void free_domheap_pages(struct page_info *pg, unsigned int order) spin_unlock_recursive(&d->page_alloc_lock); -#ifndef CONFIG_SCRUB_DEBUG /* * Normally we expect a domain to clear pages before freeing them, * if it cares about the secrecy of their contents. However, after * a domain has died we assume responsibility for erasure. */ - scrub = !!d->is_dying; -#else - scrub = true; -#endif + scrub = d->is_dying || scrub_debug; } else { -- 2.30.2