From: Mike Snitzer Date: Thu, 10 May 2018 15:18:49 +0000 (-0400) Subject: dm thin: update Documentation to clarify when "read_only" is valid X-Git-Tag: v5.15~8883^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=28700a36232ba61fb6ac59466821546cb25aec69;p=platform%2Fkernel%2Flinux-starfive.git dm thin: update Documentation to clarify when "read_only" is valid Due to user confusion, clarify that it doesn't make sense to try to create a thin-pool with "read_only" mode enabled. Signed-off-by: Mike Snitzer --- diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt index 4bcd4b7..3d01948 100644 --- a/Documentation/device-mapper/thin-provisioning.txt +++ b/Documentation/device-mapper/thin-provisioning.txt @@ -264,7 +264,10 @@ i) Constructor data device, but just remove the mapping. read_only: Don't allow any changes to be made to the pool - metadata. + metadata. This mode is only available after the + thin-pool has been created and first used in full + read/write mode. It cannot be specified on initial + thin-pool creation. error_if_no_space: Error IOs, instead of queueing, if no space.