f2fs: shrink sbi->sb_lock coverage in set_file_temperature()

file_set_{cold,hot} doesn't need holding sbi->sb_lock, so moving them
out of the lock.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/namei.c

@@ -182,16 +182,19 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
 	hot_count = sbi->raw_super->hot_ext_count;
 
 	for (i = 0; i < cold_count + hot_count; i++) {
-		if (!is_extension_exist(name, extlist[i]))
-			continue;
-		if (i < cold_count)
-			file_set_cold(inode);
-		else
-			file_set_hot(inode);
-		break;
+		if (is_extension_exist(name, extlist[i]))
+			break;
 	}
 
 	up_read(&sbi->sb_lock);
+
+	if (i == cold_count + hot_count)
+		return;
+
+	if (i < cold_count)
+		file_set_cold(inode);
+	else
+		file_set_hot(inode);
 }
 
 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,