After quota_off, we'll get some dirty blocks. If put_super don't have a chance
to flush them by checkpoint, it causes NULL pointer exception in end_io after
iput(node_inode). (e.g., by checkpoint=disable)
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fs/f2fs/super.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 5e1f8573a17f..7694cb350734 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2026,6 +2026,12 @@ void f2fs_quota_off_umount(struct super_block *sb)
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
}
}
+ /*
+ * In case of checkpoint=disable, we must flush quota blocks.
+ * This can cause NULL exception for node_inode in end_io, since
+ * put_super already dropped it.
+ */
+ sync_filesystem(sb);
}
static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
--
2.19.0.605.g01d371f741-goog
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