[CRIU] [PATCH 2/7] lazy-pages: stop checking for zero pagemaps

[Mike Rapoport]

A page that explicitly mapped to zero pfn or a page that is not present
should be treated in the same way, therefore the zero pagemaps are not
required and will be removed by the following commits.

Signed-off-by: Mike Rapoport <rppt at linux.vnet.ibm.com>
---
 criu/uffd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/criu/uffd.c b/criu/uffd.c
index f78c512..c66a187 100644
--- a/criu/uffd.c
+++ b/criu/uffd.c
@@ -587,8 +587,8 @@ static int uffd_seek_or_zero_pages(struct lazy_pages_info *lpi, __u64 address,
 
 	lpi->pr.reset(&lpi->pr);
 
-	ret = lpi->pr.seek_pagemap(&lpi->pr, address, false);
-	if (!ret || pagemap_zero(lpi->pr.pe))
+	ret = lpi->pr.seek_pagemap(&lpi->pr, address, true);
+	if (!ret)
 		return uffd_zero(lpi, address, nr);
 
 	lpi->pr.skip_pages(&lpi->pr, address - lpi->pr.pe->vaddr);
-- 
1.9.1