[CRIU] [PATCH 1/2] pre-dump: don't allow --lazy-pages option

[Mike Rapoport]

Using --lazy-pages with pre-dump causes partial memory dump and it's not
the intention. The whole point of pre-dump is to keep amount of memory that
would be dumped during tasks freeze to minimum.

Disallow running pre-dump with --lazy-pages.

Signed-off-by: Mike Rapoport <rppt at linux.ibm.com>
---
 criu/crtools.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/criu/crtools.c b/criu/crtools.c
index 64d298d..c8b9ab1 100644
--- a/criu/crtools.c
+++ b/criu/crtools.c
@@ -239,6 +239,11 @@ int main(int argc, char *argv[], char *envp[])
 		if (!opts.tree_id)
 			goto opt_pid_missing;
 
+		if (opts.lazy_pages) {
+			pr_err("Cannot pre-dump with --lazy-pages\n");
+			return 1;
+		}
+
 		return cr_pre_dump_tasks(opts.tree_id) != 0;
 	}
 
-- 
2.7.4