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-rw-r--r--include/trace/events/ext4.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 01e9e00..6a1fcff 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -796,8 +796,9 @@ DECLARE_EVENT_CLASS(ext4__mballoc,
),
TP_fast_assign(
- __entry->dev = ac->ac_inode->i_sb->s_dev;
- __entry->ino = ac->ac_inode->i_ino;
+ __entry->dev = ac->ac_sb->s_dev;
+ __entry->ino = ac->ac_inode ?
+ ac->ac_inode->i_ino : 0;
__entry->result_logical = ac->ac_b_ex.fe_logical;
__entry->result_start = ac->ac_b_ex.fe_start;
__entry->result_group = ac->ac_b_ex.fe_group;
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