From: Christoph Hellwig <hch@lst.de>
Date: Wed, 15 Jan 2025 09:46:37 +0000 (+0100)
Subject: lockref: remove lockref_put_not_zero
X-Git-Tag: v6.14-rc1~216^2^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4b193fa75efffd90c054d1a7f2b5dbe29a461c14;p=thirdparty%2Fkernel%2Flinux.git

lockref: remove lockref_put_not_zero

lockref_put_not_zero is not used anywhere, and unless I'm missing
something didn't end up being used used at all.  Remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250115094702.504610-2-hch@lst.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
---

diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index c3a1f78bc884d..e5aa0347f274b 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -37,7 +37,6 @@ struct lockref {
 extern void lockref_get(struct lockref *);
 extern int lockref_put_return(struct lockref *);
 extern int lockref_get_not_zero(struct lockref *);
-extern int lockref_put_not_zero(struct lockref *);
 extern int lockref_put_or_lock(struct lockref *);
 
 extern void lockref_mark_dead(struct lockref *);
diff --git a/lib/lockref.c b/lib/lockref.c
index 2afe4c5d89191..a68192c979b32 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -81,34 +81,6 @@ int lockref_get_not_zero(struct lockref *lockref)
 }
 EXPORT_SYMBOL(lockref_get_not_zero);
 
-/**
- * lockref_put_not_zero - Decrements count unless count <= 1 before decrement
- * @lockref: pointer to lockref structure
- * Return: 1 if count updated successfully or 0 if count would become zero
- */
-int lockref_put_not_zero(struct lockref *lockref)
-{
-	int retval;
-
-	CMPXCHG_LOOP(
-		new.count--;
-		if (old.count <= 1)
-			return 0;
-	,
-		return 1;
-	);
-
-	spin_lock(&lockref->lock);
-	retval = 0;
-	if (lockref->count > 1) {
-		lockref->count--;
-		retval = 1;
-	}
-	spin_unlock(&lockref->lock);
-	return retval;
-}
-EXPORT_SYMBOL(lockref_put_not_zero);
-
 /**
  * lockref_put_return - Decrement reference count if possible
  * @lockref: pointer to lockref structure