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Diffstat (limited to 'fs/f2fs/segment.h')
-rw-r--r--fs/f2fs/segment.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 943be4f1d6d2..0465dc00b349 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -559,13 +559,16 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi,
unsigned int node_blocks, unsigned int data_blocks,
unsigned int dent_blocks)
{
-
unsigned int segno, left_blocks, blocks;
int i;
/* check current data/node sections in the worst case. */
for (i = CURSEG_HOT_DATA; i < NR_PERSISTENT_LOG; i++) {
segno = CURSEG_I(sbi, i)->segno;
+
+ if (unlikely(segno == NULL_SEGNO))
+ return false;
+
left_blocks = CAP_BLKS_PER_SEC(sbi) -
get_ckpt_valid_blocks(sbi, segno, true);
@@ -576,6 +579,10 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi,
/* check current data section for dentry blocks. */
segno = CURSEG_I(sbi, CURSEG_HOT_DATA)->segno;
+
+ if (unlikely(segno == NULL_SEGNO))
+ return false;
+
left_blocks = CAP_BLKS_PER_SEC(sbi) -
get_ckpt_valid_blocks(sbi, segno, true);
if (dent_blocks > left_blocks)