Patch "fs: dlm: start midcomms before scand" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    fs: dlm: start midcomms before scand

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     fs-dlm-start-midcomms-before-scand.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 6d3a2406be8898dea62067f65a980fe39dcc3235
Author: Alexander Aring <aahringo@xxxxxxxxxx>
Date:   Thu Jan 12 17:10:31 2023 -0500

    fs: dlm: start midcomms before scand
    
    [ Upstream commit aad633dc0cf90093998b1ae0ba9f19b5f1dab644 ]
    
    The scand kthread can send dlm messages out, especially dlm remove
    messages to free memory for unused rsb on other nodes. To send out dlm
    messages, midcomms must be initialized. This patch moves the midcomms
    start before scand is started.
    
    Cc: stable@xxxxxxxxxxxxxxx
    Fixes: e7fd41792fc0 ("[DLM] The core of the DLM for GFS2/CLVM")
    Signed-off-by: Alexander Aring <aahringo@xxxxxxxxxx>
    Signed-off-by: David Teigland <teigland@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 1b49f375829d0..fa086a81a8476 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -383,23 +383,23 @@ static int threads_start(void)
 {
 	int error;
 
-	error = dlm_scand_start();
+	/* Thread for sending/receiving messages for all lockspace's */
+	error = dlm_midcomms_start();
 	if (error) {
-		log_print("cannot start dlm_scand thread %d", error);
+		log_print("cannot start dlm midcomms %d", error);
 		goto fail;
 	}
 
-	/* Thread for sending/receiving messages for all lockspace's */
-	error = dlm_midcomms_start();
+	error = dlm_scand_start();
 	if (error) {
-		log_print("cannot start dlm midcomms %d", error);
-		goto scand_fail;
+		log_print("cannot start dlm_scand thread %d", error);
+		goto midcomms_fail;
 	}
 
 	return 0;
 
- scand_fail:
-	dlm_scand_stop();
+ midcomms_fail:
+	dlm_midcomms_stop();
  fail:
 	return error;
 }