From: David Sterba <dsterba@suse.com>
Date: Wed, 9 Oct 2024 14:30:50 +0000 (+0200)
Subject: btrfs: zstd: assert the timer pointer in callback
X-Git-Tag: v6.13-rc1~213^2~84
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2fac7e163d24f77476399c5e646edcf86db57d0c;p=thirdparty%2Flinux.git

btrfs: zstd: assert the timer pointer in callback

Make sure we got the right timer struct for the zstd workspace reclaim
work.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/zstd.c b/fs/btrfs/zstd.c
index 15f8a83165a38..5232b56d58925 100644
--- a/fs/btrfs/zstd.c
+++ b/fs/btrfs/zstd.c
@@ -111,6 +111,8 @@ static void zstd_reclaim_timer_fn(struct timer_list *timer)
 	unsigned long reclaim_threshold = jiffies - ZSTD_BTRFS_RECLAIM_JIFFIES;
 	struct list_head *pos, *next;
 
+	ASSERT(timer == &wsm.timer);
+
 	spin_lock(&wsm.lock);
 
 	if (list_empty(&wsm.lru_list)) {