This is a note to let you know that I've just added the patch titled
memory tier: release the new_memtier in find_create_memory_tier()
to the 6.1-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:
memory-tier-release-the-new_memtier-in-find_create_memory_tier.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 93419139fa14124c1c507d804f2b28866ebee28d Mon Sep 17 00:00:00 2001
From: Tong Tiangen <tongtiangen@xxxxxxxxxx>
Date: Sun, 29 Jan 2023 04:06:51 +0000
Subject: memory tier: release the new_memtier in find_create_memory_tier()
From: Tong Tiangen <tongtiangen@xxxxxxxxxx>
commit 93419139fa14124c1c507d804f2b28866ebee28d upstream.
In find_create_memory_tier(), if failed to register device, then we should
release new_memtier from the tier list and put device instead of memtier.
Link: https://lkml.kernel.org/r/20230129040651.1329208-1-tongtiangen@xxxxxxxxxx
Fixes: 9832fb87834e ("mm/demotion: expose memory tier details via sysfs")
Signed-off-by: Tong Tiangen <tongtiangen@xxxxxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
Cc: Hanjun Guo <guohanjun@xxxxxxxxxx>
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Guohanjun <guohanjun@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
mm/memory-tiers.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c
index c734658c6242..e593e56e530b 100644
--- a/mm/memory-tiers.c
+++ b/mm/memory-tiers.c
@@ -211,8 +211,8 @@ static struct memory_tier *find_create_memory_tier(struct memory_dev_type *memty
ret = device_register(&new_memtier->dev);
if (ret) {
- list_del(&memtier->list);
- put_device(&memtier->dev);
+ list_del(&new_memtier->list);
+ put_device(&new_memtier->dev);
return ERR_PTR(ret);
}
memtier = new_memtier;
--
2.39.2
Patches currently in stable-queue which might be from tongtiangen@xxxxxxxxxx are
queue-6.1/memory-tier-release-the-new_memtier-in-find_create_memory_tier.patch
