From: Jiang Biao <benbjiang@tencent.com>
Date: Wed, 24 Apr 2019 00:58:57 +0000 (+0800)
Subject: fs/quota: erase unused but set variable warning
X-Git-Tag: v5.2-rc1~82^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=78bc3334a69ff289dbc973a9db7c52a2d7757e5b;p=thirdparty%2Fkernel%2Flinux.git

fs/quota: erase unused but set variable warning

Local variable *reserved* of remove_dquot_ref() is only used if
define CONFIG_QUOTA_DEBUG, but not ebraced in CONFIG_QUOTA_DEBUG
macro, which leads to unused-but-set-variable warning when compiling.

This patch ebrace it into CONFIG_QUOTA_DEBUG macro like what is done
in add_dquot_ref().

Signed-off-by: Jiang Biao <benbjiang@tencent.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index d2f2972b33db8..67e534dbfc0e8 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -1050,7 +1050,9 @@ static void remove_dquot_ref(struct super_block *sb, int type,
 		struct list_head *tofree_head)
 {
 	struct inode *inode;
+#ifdef CONFIG_QUOTA_DEBUG
 	int reserved = 0;
+#endif
 
 	spin_lock(&sb->s_inode_list_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
@@ -1062,8 +1064,10 @@ static void remove_dquot_ref(struct super_block *sb, int type,
 		 */
 		spin_lock(&dq_data_lock);
 		if (!IS_NOQUOTA(inode)) {
+#ifdef CONFIG_QUOTA_DEBUG
 			if (unlikely(inode_get_rsv_space(inode) > 0))
 				reserved = 1;
+#endif
 			remove_inode_dquot_ref(inode, type, tofree_head);
 		}
 		spin_unlock(&dq_data_lock);