From 92153d30c7c8863022cad684926d71ffaed6a56d Mon Sep 17 00:00:00 2001 From: Yasuaki Ishimatsu Date: Wed, 16 Nov 2016 08:26:11 -0700 Subject: null_blk: add usage hints for NVM If CONFIG_NVM is disabled, loading null_block module with use_lightnvm=1 fails. But there are no messages and documents related to the failure. Add the appropriate error message. Signed-off-by: Yasuaki Ishimatsu Massaged the text a bit. Signed-off-by: Jens Axboe --- Documentation/block/null_blk.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/block') diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index d8880ca30af4..3140dbd860d8 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -72,4 +72,4 @@ use_per_node_hctx=[0/1]: Default: 0 queue for each CPU node in the system. use_lightnvm=[0/1]: Default: 0 - Register device with LightNVM. Requires blk-mq to be used. + Register device with LightNVM. Requires blk-mq and CONFIG_NVM to be enabled. -- cgit v1.2.3