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Commit 72fdbe2e authored by Fan Li's avatar Fan Li Committed by Jaegeuk Kim
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f2fs: simplify the way of calulating next nat address 



The index of segment which the next nat block is in has only one different
bit than the current one, so to get the next nat address, we can simply
alter that one bit.

Signed-off-by: default avatarFan Li <fanofcode.li@samsung.com>
Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 21d3f8e1

fs/f2fs/node.h

+1 −5
Original line number Original line Diff line number Diff line
@@ -224,11 +224,7 @@ static inline pgoff_t next_nat_addr(struct f2fs_sb_info *sbi, 
	struct f2fs_nm_info *nm_i = NM_I(sbi);

	struct f2fs_nm_info *nm_i = NM_I(sbi);





	block_addr -= nm_i->nat_blkaddr;

	block_addr -= nm_i->nat_blkaddr;

	if ((block_addr >> sbi->log_blocks_per_seg) % 2)

	block_addr ^= 1 << sbi->log_blocks_per_seg;

		block_addr -= sbi->blocks_per_seg;

	else

		block_addr += sbi->blocks_per_seg;



	return block_addr + nm_i->nat_blkaddr;

	return block_addr + nm_i->nat_blkaddr;

}

}