[CRIU] [PATCH 2/6] Skip generating iov for non PROT_READ region

[Abhishek Dubey]

skip iov-generation for regions not having PROT_READ,
since process_vm_readv syscall fail to process such regions

Signed-off-by: Abhishek Dubey <dubeyabhishek777 at gmail.com>
---
 criu/mem.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/criu/mem.c b/criu/mem.c
index a7e8d0b..5c13690 100644
--- a/criu/mem.c
+++ b/criu/mem.c
@@ -361,6 +361,12 @@ static int generate_vma_iovs(struct pstree_item *item, struct vma_area *vma,
 				!vma_area_is(vma, VMA_ANON_SHARED))
 		return 0;
 
+	if (!(vma->e->prot & PROT_READ)) {
+		if (pre_dump)
+			return 0;
+		has_parent = false;
+	}
+
 	if (vma_entry_is(vma->e, VMA_AREA_AIORING)) {
 		if (pre_dump)
 			return 0;
-- 
2.7.4