From: Christian Marangi <ansuelsmth@gmail.com>
Date: Wed, 2 Oct 2024 22:11:42 +0000 (+0200)
Subject: docs: block: Document support for read-only partition in cmdline part
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=592e4deeab50aa71a0b20820f2376c900e920211;p=users%2Fhch%2Fmisc.git

docs: block: Document support for read-only partition in cmdline part

Document support for read-only partition in cmdline partition for block
devices by appending "ro" after the (partition name).

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20241002221306.4403-3-ansuelsmth@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/Documentation/block/cmdline-partition.rst b/Documentation/block/cmdline-partition.rst
index 530bedff548a..526ba201dddc 100644
--- a/Documentation/block/cmdline-partition.rst
+++ b/Documentation/block/cmdline-partition.rst
@@ -39,13 +39,16 @@ blkdevparts=<blkdev-def>[;<blkdev-def>]
     create a link to block device partition with the name "PARTNAME".
     User space application can access partition by partition name.
 
+ro
+    read-only. Flag the partition as read-only.
+
 Example:
 
     eMMC disk names are "mmcblk0" and "mmcblk0boot0".
 
   bootargs::
 
-    'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot),-(kernel)'
+    'blkdevparts=mmcblk0:1G(data0),1G(data1),-;mmcblk0boot0:1m(boot)ro,-(kernel)'
 
   dmesg::