[CRIU] [PATCH] mem: fix typo in determining an address of parent vma

[Andrey Vagin]

Look at this hunk from 7659c995f58f:
-    paddr = decode_pointer(vma_premmaped_start(&p->vma));
+    paddr = decode_pointer(vma->premmaped_addr);

Obviously we want to use p->premmaped_addr instead of
vma->premmaped_addr.

Fixes: 7659c995f58f ("vm: don't overwrite vma->shmid for private mappings")
Reported-by: Filipe Brandenburger <filbranden at google.com>
Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
 cr-restore.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cr-restore.c b/cr-restore.c
index 1c67a20..2601c0c 100644
--- a/cr-restore.c
+++ b/cr-restore.c
@@ -238,7 +238,8 @@ static int map_private_vma(pid_t pid, struct vma_area *vma, void *tgt_addr,
 		    p->vma.start == vma->vma.start) {
 			pr_info("COW 0x%016"PRIx64"-0x%016"PRIx64" 0x%016"PRIx64" vma\n",
 				vma->vma.start, vma->vma.end, vma->vma.pgoff);
-			paddr = decode_pointer(vma->premmaped_addr);
+			paddr = decode_pointer(p->premmaped_addr);
+			pr_err("%p %p\n", vma, decode_pointer(vma->premmaped_addr));
 			break;
 		}
 
@@ -291,6 +292,7 @@ static int map_private_vma(pid_t pid, struct vma_area *vma, void *tgt_addr,
 	}
 
 	vma->premmaped_addr = (unsigned long) addr;
+	pr_err("%p %p\n", vma, decode_pointer(vma->premmaped_addr));
 	pr_debug("\tpremap 0x%016"PRIx64"-0x%016"PRIx64" -> %016lx\n",
 		vma->vma.start, vma->vma.end, (unsigned long)addr);
 
-- 
1.8.5.3