From: Allison Karlitskaya <allison.karlitskaya@redhat.com>
Date: Thu, 13 Mar 2025 16:18:17 +0000 (+0100)
Subject: mke2fs: disallow -O verity without extents
X-Git-Tag: v1.47.3-rc1~25
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=03fa1a5ee55d0653f5931cea3cab760599bab216;p=thirdparty%2Fe2fsprogs.git

mke2fs: disallow -O verity without extents

Similar to 64-bit support, fs-verity support requires extents, so don't
allow to create a filesystem that has -O verity unless it also supports
extents.
---

diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 66675976..456cf6f1 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -2397,6 +2397,14 @@ profile_error:
 		exit(1);
 	}
 
+	/* fs-verity support requires extents */
+	if (ext2fs_has_feature_verity(&fs_param) &&
+	    !ext2fs_has_feature_extents(&fs_param)) {
+		printf("%s", _("Extents MUST be enabled for fs-verity "
+			       "support.  Pass -O extents to rectify.\n"));
+		exit(1);
+	}
+
 	/* Set first meta blockgroup via an environment variable */
 	/* (this is mostly for debugging purposes) */
 	if (ext2fs_has_feature_meta_bg(&fs_param) &&