orangefs_bufmap_..._query(): don't bother with refcounts

... just hold the spinlock while fetching the field in question. Signed-off-by: Al Viro <[email protected]> Signed-off-by: Mike Marshall <[email protected]>
pop-os · Feb 19, 2016 · 1780418 · 1780418
1 parent 05b39a8
commit 1780418
Showing 1 changed file with 8 additions and 8 deletions.
diff --git a/fs/orangefs/orangefs-bufmap.c b/fs/orangefs/orangefs-bufmap.c
@@ -91,23 +91,23 @@ int orangefs_bufmap_size_query(void)
 {
 	struct orangefs_bufmap *bufmap;
 	int size = 0;
-	bufmap = orangefs_bufmap_ref();
-	if (bufmap) {
+	spin_lock(&orangefs_bufmap_lock);
+	bufmap = __orangefs_bufmap;
+	if (bufmap)
 		size = bufmap->desc_size;
-		orangefs_bufmap_unref(bufmap);
-	}
+	spin_unlock(&orangefs_bufmap_lock);
 	return size;
 }
 
 int orangefs_bufmap_shift_query(void)
 {
 	struct orangefs_bufmap *bufmap;
 	int shift = 0;
-	bufmap = orangefs_bufmap_ref();
-	if (bufmap) {
+	spin_lock(&orangefs_bufmap_lock);
+	bufmap = __orangefs_bufmap;
+	if (bufmap)
 		shift = bufmap->desc_shift;
-		orangefs_bufmap_unref(bufmap);
-	}
+	spin_unlock(&orangefs_bufmap_lock);
 	return shift;
 }