linux-kernel - [PATCH] f2fs: fix CURSEG_HOT

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Message-ID: <20250804165411.3441-1-masonzhang.linuxer@gmail.com>
Date: Tue,  5 Aug 2025 00:54:11 +0800
From: "mason.zhang" <masonzhang.linuxer@...il.com>
To: chao@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org,
	masonzhang.linuxer@...il.com
Subject: [PATCH] f2fs: fix CURSEG_HOT_DATA left space check

This fix combines the space check for data_blocks and dent_blocks when
verifying HOT_DATA segment capacity, preventing potential insufficient
space issues during checkpoint.

Signed-off-by: mason.zhang <masonzhang.linuxer@...il.com>
---
 fs/f2fs/segment.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index db619fd2f51a..d8dae0049b6a 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -649,7 +649,7 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi,
 				get_ckpt_valid_blocks(sbi, segno, true);
 	}
 
-	if (dent_blocks > left_blocks)
+	if (dent_blocks + data_blocks > left_blocks)
 		return false;
 	return true;
 }
-- 
2.48.1