commit 12cab56e96b6591f4756bdca96e26260431fbcda
author Lorenz Brun <lorenz@monogon.tech> Tue Feb 25 17:01:02 2025 +0100
committer Lorenz Brun <lorenz@monogon.tech> Wed Feb 26 14:11:21 2025 +0000
tree bdba0d9a4bc52abe4fb2dd8bf287055f844725a1
parent e294916b24bb6d0035484d215421ceb03c6598b7

m/n/c/l/crypt: open blockdevs read-only for discovery

Use the new blockdev capabilities to only open the block devices in
read-only mode for partition discovery. This allows us to disable writes
to mounted partitions in Linux 6.12 and not get a spurious warning for
every boot. It's also generally good practice as we don't want to write
at that stage anyways.

Change-Id: If8dd9b49ae593aac6f0a25d439baa0b7d60d7ffe
Reviewed-on: https://review.monogon.dev/c/monogon/+/3986
Reviewed-by: Jan Schär <jan@monogon.tech>
Tested-by: Jenkins CI

third_party/linux/linux-metropolis.config

diff --git a/third_party/linux/linux-metropolis.config b/third_party/linux/linux-metropolis.config
index 4627662..baed548 100644
--- a/third_party/linux/linux-metropolis.config
+++ b/third_party/linux/linux-metropolis.config
@@ -87,7 +87,7 @@
 CONFIG_KVM_AMD=m
 CONFIG_JUMP_LABEL=y
 CONFIG_MODULES=y
-# CONFIG_BLK_DEV_WRITE_MOUNTED is not set
+CONFIG_BLK_DEV_WRITE_MOUNTED=n
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_BINFMT_MISC=y