From: Xue Liu <liuxueliu....@huawei.com>

From: Xue Liu <liuxueliu....@huawei.com>

Call current_nat_addr() to calculate nat block address.

Signed-off-by: Xue Liu <liuxueliu....@huawei.com>
---
 fsck/mount.c | 56 ++++++++------------------------------------------------
 1 file changed, 8 insertions(+), 48 deletions(-)

diff --git a/fsck/mount.c b/fsck/mount.c
index 7af684f..3be60bb 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -1168,11 +1168,9 @@ int get_sum_entry(struct f2fs_sb_info *sbi, u32 blk_addr,
 static void get_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
                                struct f2fs_nat_entry *raw_nat)
 {
-       struct f2fs_nm_info *nm_i = NM_I(sbi);
        struct f2fs_nat_block *nat_block;
-       pgoff_t block_off;
        pgoff_t block_addr;
-       int seg_off, entry_off;
+       int entry_off;
        int ret;
 
        if (lookup_nat_in_journal(sbi, nid, raw_nat) >= 0)
@@ -1180,16 +1178,8 @@ static void get_nat_entry(struct f2fs_sb_info *sbi, 
nid_t nid,
 
        nat_block = (struct f2fs_nat_block *)calloc(BLOCK_SZ, 1);
 
-       block_off = nid / NAT_ENTRY_PER_BLOCK;
        entry_off = nid % NAT_ENTRY_PER_BLOCK;
-
-       seg_off = block_off >> sbi->log_blocks_per_seg;
-       block_addr = (pgoff_t)(nm_i->nat_blkaddr +
-                       (seg_off << sbi->log_blocks_per_seg << 1) +
-                       (block_off & ((1 << sbi->log_blocks_per_seg) - 1)));
-
-       if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
-               block_addr += sbi->blocks_per_seg;
+       block_addr = current_nat_addr(sbi, nid);
 
        ret = dev_read_block(nat_block, block_addr);
        ASSERT(ret >= 0);
@@ -1252,25 +1242,15 @@ void update_data_blkaddr(struct f2fs_sb_info *sbi, 
nid_t nid,
 void update_nat_blkaddr(struct f2fs_sb_info *sbi, nid_t ino,
                                        nid_t nid, block_t newaddr)
 {
-       struct f2fs_nm_info *nm_i = NM_I(sbi);
        struct f2fs_nat_block *nat_block;
-       pgoff_t block_off;
        pgoff_t block_addr;
-       int seg_off, entry_off;
+       int entry_off;
        int ret;
 
        nat_block = (struct f2fs_nat_block *)calloc(BLOCK_SZ, 1);
 
-       block_off = nid / NAT_ENTRY_PER_BLOCK;
        entry_off = nid % NAT_ENTRY_PER_BLOCK;
-
-       seg_off = block_off >> sbi->log_blocks_per_seg;
-       block_addr = (pgoff_t)(nm_i->nat_blkaddr +
-                       (seg_off << sbi->log_blocks_per_seg << 1) +
-                       (block_off & ((1 << sbi->log_blocks_per_seg) - 1)));
-
-       if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
-               block_addr += sbi->blocks_per_seg;
+       block_addr = current_nat_addr(sbi, nid);
 
        ret = dev_read_block(nat_block, block_addr);
        ASSERT(ret >= 0);
@@ -1486,11 +1466,9 @@ static void flush_nat_journal_entries(struct 
f2fs_sb_info *sbi)
 {
        struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
        struct f2fs_journal *journal = &curseg->sum_blk->journal;
-       struct f2fs_nm_info *nm_i = NM_I(sbi);
        struct f2fs_nat_block *nat_block;
-       pgoff_t block_off;
        pgoff_t block_addr;
-       int seg_off, entry_off;
+       int entry_off;
        nid_t nid;
        int ret;
        int i = 0;
@@ -1504,16 +1482,8 @@ next:
        nid = le32_to_cpu(nid_in_journal(journal, i));
        nat_block = (struct f2fs_nat_block *)calloc(BLOCK_SZ, 1);
 
-       block_off = nid / NAT_ENTRY_PER_BLOCK;
        entry_off = nid % NAT_ENTRY_PER_BLOCK;
-
-       seg_off = block_off >> sbi->log_blocks_per_seg;
-       block_addr = (pgoff_t)(nm_i->nat_blkaddr +
-                       (seg_off << sbi->log_blocks_per_seg << 1) +
-                       (block_off & ((1 << sbi->log_blocks_per_seg) - 1)));
-
-       if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
-               block_addr += sbi->blocks_per_seg;
+       block_addr = current_nat_addr(sbi, nid);
 
        ret = dev_read_block(nat_block, block_addr);
        ASSERT(ret >= 0);
@@ -1704,11 +1674,9 @@ void nullify_nat_entry(struct f2fs_sb_info *sbi, u32 nid)
 {
        struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
        struct f2fs_journal *journal = &curseg->sum_blk->journal;
-       struct f2fs_nm_info *nm_i = NM_I(sbi);
        struct f2fs_nat_block *nat_block;
-       pgoff_t block_off;
        pgoff_t block_addr;
-       int seg_off, entry_off;
+       int entry_off;
        int ret;
        int i = 0;
 
@@ -1723,16 +1691,8 @@ void nullify_nat_entry(struct f2fs_sb_info *sbi, u32 nid)
        }
        nat_block = (struct f2fs_nat_block *)calloc(BLOCK_SZ, 1);
 
-       block_off = nid / NAT_ENTRY_PER_BLOCK;
        entry_off = nid % NAT_ENTRY_PER_BLOCK;
-
-       seg_off = block_off >> sbi->log_blocks_per_seg;
-       block_addr = (pgoff_t)(nm_i->nat_blkaddr +
-                       (seg_off << sbi->log_blocks_per_seg << 1) +
-                       (block_off & ((1 << sbi->log_blocks_per_seg) - 1)));
-
-       if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
-               block_addr += sbi->blocks_per_seg;
+       block_addr = current_nat_addr(sbi, nid);
 
        ret = dev_read_block(nat_block, block_addr);
        ASSERT(ret >= 0);
-- 
2.7.1


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