Commit 249ad438 authored by yohan.joung's avatar yohan.joung Committed by Jaegeuk Kim
Browse files

f2fs: add a method for calculating the remaining blocks in the current segment in LFS mode. 



In LFS mode, the previous segment cannot use invalid blocks,
so the remaining blocks from the next_blkoff of the current segment
to the end of the section are calculated.

Signed-off-by: default avataryohan.joung <yohan.joung@sk.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 54ca9be0

fs/f2fs/segment.h

+19 −4
Original line number Diff line number Diff line
@@ -102,6 +102,8 @@ static inline void sanity_check_seg_type(struct f2fs_sb_info *sbi, 
#define CAP_SEGS_PER_SEC(sbi)					\

	(SEGS_PER_SEC(sbi) -					\

	BLKS_TO_SEGS(sbi, (sbi)->unusable_blocks_per_sec))

#define GET_START_SEG_FROM_SEC(sbi, segno)			\

	(rounddown(segno, SEGS_PER_SEC(sbi)))

#define GET_SEC_FROM_SEG(sbi, segno)				\

	(((segno) == -1) ? -1 : (segno) / SEGS_PER_SEC(sbi))

#define GET_SEG_FROM_SEC(sbi, secno)				\
@@ -582,8 +584,14 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi, 
		if (unlikely(segno == NULL_SEGNO))

			return false;



		if (f2fs_lfs_mode(sbi) && __is_large_section(sbi)) {

			left_blocks = CAP_BLKS_PER_SEC(sbi) -

				SEGS_TO_BLKS(sbi, (segno - GET_START_SEG_FROM_SEC(sbi, segno))) -

				CURSEG_I(sbi, i)->next_blkoff;

		} else {

			left_blocks = CAP_BLKS_PER_SEC(sbi) -

					get_ckpt_valid_blocks(sbi, segno, true);

		}



		blocks = i <= CURSEG_COLD_DATA ? data_blocks : node_blocks;

		if (blocks > left_blocks)
@@ -596,8 +604,15 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi, 
	if (unlikely(segno == NULL_SEGNO))

		return false;



	if (f2fs_lfs_mode(sbi) && __is_large_section(sbi)) {

		left_blocks = CAP_BLKS_PER_SEC(sbi) -

				SEGS_TO_BLKS(sbi, (segno - GET_START_SEG_FROM_SEC(sbi, segno))) -

				CURSEG_I(sbi, CURSEG_HOT_DATA)->next_blkoff;

	} else {

		left_blocks = CAP_BLKS_PER_SEC(sbi) -

				get_ckpt_valid_blocks(sbi, segno, true);

	}



	if (dent_blocks > left_blocks)

		return false;

	return true;