Patch "dm: add cond_resched() to dm_wq_work()" has been added to the 6.2-stable tree

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

    dm: add cond_resched() to dm_wq_work()

to the 6.2-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:
     dm-add-cond_resched-to-dm_wq_work.patch
and it can be found in the queue-6.2 subdirectory.

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


>From 0ca44fcef241768fd25ee763b3d203b9852f269b Mon Sep 17 00:00:00 2001
From: Pingfan Liu <piliu@xxxxxxxxxx>
Date: Wed, 15 Feb 2023 19:23:40 +0800
Subject: dm: add cond_resched() to dm_wq_work()

From: Pingfan Liu <piliu@xxxxxxxxxx>

commit 0ca44fcef241768fd25ee763b3d203b9852f269b upstream.

Otherwise the while() loop in dm_wq_work() can result in a "dead
loop" on systems that have preemption disabled. This is particularly
problematic on single cpu systems.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Pingfan Liu <piliu@xxxxxxxxxx>
Acked-by: Ming Lei <ming.lei@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/md/dm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2565,6 +2565,7 @@ static void dm_wq_work(struct work_struc
 			break;
 
 		submit_bio_noacct(bio);
+		cond_resched();
 	}
 }
 


Patches currently in stable-queue which might be from piliu@xxxxxxxxxx are

queue-6.2/dm-add-cond_resched-to-dm_wq_work.patch



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