f2fs: modify for accurate fggc node io stat

modify for accurate fggc node io stat
Signed-off-by: NYunlei He <heyunlei@huawei.com>
Reviewed-by: NChao Yu <yuchao0@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/node.c

@@ -1243,37 +1243,6 @@ static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino)
 	iput(inode);
 }
 
-void move_node_page(struct page *node_page, int gc_type)
-{
-	if (gc_type == FG_GC) {
-		struct f2fs_sb_info *sbi = F2FS_P_SB(node_page);
-		struct writeback_control wbc = {
-			.sync_mode = WB_SYNC_ALL,
-			.nr_to_write = 1,
-			.for_reclaim = 0,
-		};
-
-		set_page_dirty(node_page);
-		f2fs_wait_on_page_writeback(node_page, NODE, true);
-
-		f2fs_bug_on(sbi, PageWriteback(node_page));
-		if (!clear_page_dirty_for_io(node_page))
-			goto out_page;
-
-		if (NODE_MAPPING(sbi)->a_ops->writepage(node_page, &wbc))
-			unlock_page(node_page);
-		goto release_page;
-	} else {
-		/* set page dirty and write it */
-		if (!PageWriteback(node_page))
-			set_page_dirty(node_page);
-	}
-out_page:
-	unlock_page(node_page);
-release_page:
-	f2fs_put_page(node_page, 0);
-}
-
 static struct page *last_fsync_dnode(struct f2fs_sb_info *sbi, nid_t ino)
 {
 	pgoff_t index, end;
@@ -1416,6 +1385,37 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	return AOP_WRITEPAGE_ACTIVATE;
 }
 
+void move_node_page(struct page *node_page, int gc_type)
+{
+	if (gc_type == FG_GC) {
+		struct writeback_control wbc = {
+			.sync_mode = WB_SYNC_ALL,
+			.nr_to_write = 1,
+			.for_reclaim = 0,
+		};
+
+		set_page_dirty(node_page);
+		f2fs_wait_on_page_writeback(node_page, NODE, true);
+
+		f2fs_bug_on(F2FS_P_SB(node_page), PageWriteback(node_page));
+		if (!clear_page_dirty_for_io(node_page))
+			goto out_page;
+
+		if (__write_node_page(node_page, false, NULL,
+					&wbc, false, FS_GC_NODE_IO))
+			unlock_page(node_page);
+		goto release_page;
+	} else {
+		/* set page dirty and write it */
+		if (!PageWriteback(node_page))
+			set_page_dirty(node_page);
+	}
+out_page:
+	unlock_page(node_page);
+release_page:
+	f2fs_put_page(node_page, 0);
+}
+
 static int f2fs_write_node_page(struct page *page,
 				struct writeback_control *wbc)
 {