[Ocfs2-devel] [PATCH 3/3] extend enough credits for freeing one truncate record while replaying truncate records
Xue jiufei
xuejiufei at huawei.com
Sun Apr 26 19:51:30 PDT 2015
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 <xuejiufei at 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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