From 0852cf97ec49326089669f7b2f6078fe5d7eb634 Mon Sep 17 00:00:00 2001
From: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Date: Sun, 6 Apr 2025 20:51:24 +0200
Subject: [PATCH] criu/pagemap-cache: pagescan: look for PAGE_IS_GUARD pages

Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
---
 criu/pagemap-cache.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/criu/pagemap-cache.c b/criu/pagemap-cache.c
index f04a517de..457c0d649 100644
--- a/criu/pagemap-cache.c
+++ b/criu/pagemap-cache.c
@@ -194,6 +194,9 @@ int pmc_fill(pmc_t *pmc, u64 start, u64 end)
 		};
 		long ret;
 
+		if (kdat.has_pagemap_scan_guard_pages)
+			args.return_mask |= PAGE_IS_GUARD;
+
 		ret = ioctl(pmc->fd, PAGEMAP_SCAN, &args);
 		if (ret == -1) {
 			pr_perror("PAGEMAP_SCAN");