use a slightly simpler expression to calculate nat block with nid.
Signed-off-by: Fan Li <[email protected]>
---
fs/f2fs/node.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index 2f9603f..f9fb5b8 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -200,13 +200,11 @@ static inline pgoff_t current_nat_addr(struct
f2fs_sb_info *sbi, nid_t start)
struct f2fs_nm_info *nm_i = NM_I(sbi);
pgoff_t block_off;
pgoff_t block_addr;
- int seg_off;
block_off = NAT_BLOCK_OFFSET(start);
- 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) -
(block_off & (sbi->blocks_per_seg - 1)));
if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
--
2.7.4
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