linux-kernel - [PATCH] f2fs: fix wrong segment count

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Date:   Fri, 10 Feb 2023 13:32:50 -0800
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH] f2fs: fix wrong segment count

MAIN_SEGS is for data area, while TOTAL_SEGS includes data and metadata.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/segment.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 8ee5e5db9287..6003fbaf4b7d 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -720,7 +720,7 @@ static inline unsigned char curseg_alloc_type(struct f2fs_sb_info *sbi,
 
 static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
 {
-	f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1);
+	f2fs_bug_on(sbi, segno > MAIN_SEGS(sbi) - 1);
 }
 
 static inline void verify_fio_blkaddr(struct f2fs_io_info *fio)
@@ -775,7 +775,7 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
 
 	/* check segment usage, and check boundary of a given segment number */
 	if (unlikely(GET_SIT_VBLOCKS(raw_sit) > usable_blks_per_seg
-					|| segno > TOTAL_SEGS(sbi) - 1)) {
+					|| segno > MAIN_SEGS(sbi) - 1)) {
 		f2fs_err(sbi, "Wrong valid blocks %d or segno %u",
 			 GET_SIT_VBLOCKS(raw_sit), segno);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
-- 
2.39.1.581.gbfd45094c4-goog