f2fs: code cleanup for scan_nat_page() and build_free_nids()

This patch does two cleanups:
1. remove unused variable "fcnt" in build_free_nids().
2. make scan_nat_page() as void type and remove useless variable "fcnt".

Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index d682f34ee0f8..122200e677a4 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1292,12 +1292,11 @@ static void remove_free_nid(struct f2fs_nm_info *nm_i, nid_t nid)
         spin_unlock(&nm_i->free_nid_list_lock);
 }
 
-static int scan_nat_page(struct f2fs_nm_info *nm_i,
+static void scan_nat_page(struct f2fs_nm_info *nm_i,
                         struct page *nat_page, nid_t start_nid)
 {
         struct f2fs_nat_block *nat_blk = page_address(nat_page);
         block_t blk_addr;
-        int fcnt = 0;
         int i;
 
         i = start_nid % NAT_ENTRY_PER_BLOCK;
@@ -1308,9 +1307,8 @@ static int scan_nat_page(struct f2fs_nm_info *nm_i,
                 blk_addr  = le32_to_cpu(nat_blk->entries[i].block_addr);
                 BUG_ON(blk_addr == NEW_ADDR);
                 if (blk_addr == NULL_ADDR)
-                        fcnt += add_free_nid(nm_i, start_nid);
+                        add_free_nid(nm_i, start_nid);
         }
-        return fcnt;
 }
 
 static void build_free_nids(struct f2fs_sb_info *sbi)
@@ -1319,7 +1317,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi)
         struct f2fs_nm_info *nm_i = NM_I(sbi);
         struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
         struct f2fs_summary_block *sum = curseg->sum_blk;
-        int fcnt = 0, i = 0;
+        int i = 0;
         nid_t nid = nm_i->next_scan_nid;
 
         /* Enough entries */
@@ -1332,7 +1330,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi)
         while (1) {
                 struct page *page = get_current_nat_page(sbi, nid);
 
-                fcnt += scan_nat_page(nm_i, page, nid);
+                scan_nat_page(nm_i, page, nid);
                 f2fs_put_page(page, 1);
 
                 nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK));