f2fs: check curseg->inited before write_sum_page in change_curseg

[ Upstream commit 4356306 ] In the __f2fs_init_atgc_curseg->get_atssr_segment calling, curseg->segno is NULL_SEGNO, indicating that there is no summary block that needs to be written. Fixes: 093749e ("f2fs: support age threshold based garbage collection") Signed-off-by: Yongpeng Yang <[email protected]> Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
RoPieee · Dec 9, 2024 · 67f4c66 · 67f4c66
1 parent f3d586b
commit 67f4c66
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
@@ -2848,7 +2848,8 @@ static void change_curseg(struct f2fs_sb_info *sbi, int type)
 	struct f2fs_summary_block *sum_node;
 	struct page *sum_page;
 
-	write_sum_page(sbi, curseg->sum_blk, GET_SUM_BLOCK(sbi, curseg->segno));
+	if (curseg->inited)
+		write_sum_page(sbi, curseg->sum_blk, GET_SUM_BLOCK(sbi, curseg->segno));
 
 	__set_test_and_inuse(sbi, new_segno);