Now function ocfs2_replay_truncate_records first modify the tl_used,
then call ocfs2_extend_trans to extend transactions for gd and alloc
inode used for freeing clusters. jbd2_journal_restart() may be
called and it may happened that tl_used in truncate log is decreased
but the clusters is not freed, which means these clusters are lost.
So we should avoid extending transactions in these two operations.

Signed-off-by: joyce.xue <xuejiu...@huawei.com>
---
 fs/ocfs2/alloc.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index ebb2cc4..6f571aa 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -5975,16 +5975,6 @@ static int ocfs2_replay_truncate_records(struct 
ocfs2_super *osb,
 
                ocfs2_journal_dirty(handle, tl_bh);
 
-               /* TODO: Perhaps we can calculate the bulk of the
-                * credits up front rather than extending like
-                * this. */
-               status = ocfs2_extend_trans(handle,
-                                           OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
-               if (status < 0) {
-                       mlog_errno(status);
-                       goto bail;
-               }
-
                rec = tl->tl_recs[i];
                start_blk = ocfs2_clusters_to_blocks(data_alloc_inode->i_sb,
                                                    le32_to_cpu(rec.t_start));
@@ -6005,6 +5995,13 @@ static int ocfs2_replay_truncate_records(struct 
ocfs2_super *osb,
                                goto bail;
                        }
                }
+
+               status = ocfs2_extend_trans(handle,
+                               OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
+               if (status < 0) {
+                       mlog_errno(status);
+                       goto bail;
+               }
                i--;
        }
 
@@ -6063,7 +6060,7 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
                goto out_mutex;
        }
 
-       handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE);
+       handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
        if (IS_ERR(handle)) {
                status = PTR_ERR(handle);
                mlog_errno(status);
-- 
1.8.4.3


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