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Message-ID: <20250508074756.693-1-yohan.joung@sk.com>
Date: Thu, 8 May 2025 16:47:54 +0900
From: "yohan.joung" <yohan.joung@...com>
To: jaegeuk@...nel.org,
chao@...nel.org,
daehojeong@...gle.com
Cc: linux-kernel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net,
pilhyun.kim@...com,
"yohan.joung" <yohan.joung@...com>
Subject: [PATCH v4 1/2] 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: yohan.joung <yohan.joung@...com>
---
fs/f2fs/segment.h | 23 +++++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 03c0f59be5a8..5777b385e7d2 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -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;
- left_blocks = CAP_BLKS_PER_SEC(sbi) -
- get_ckpt_valid_blocks(sbi, segno, true);
+ 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;
- left_blocks = CAP_BLKS_PER_SEC(sbi) -
- get_ckpt_valid_blocks(sbi, segno, true);
+ 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;
--
2.33.0
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