alex chen
2015-Jan-13 01:27 UTC
[Ocfs2-devel] [PATCH] ocfs2: fix journal commit deadlock in ocfs2_convert_inline_data_to_extents
Similar to ocfs2_write_end_nolock() which is metioned at commit
136f49b917(ocfs2: fix journal commit deadlock), we should unlock pages
before ocfs2_commit_trans() in ocfs2_convert_inline_data_to_extents,
otherwise, it will cause a deadlock with journal commit threads.
Signed-off-by: Alex Chen <alex.chen at huawei.com>
Reviewed-by: Joseph Qi <joseph.qi at huawei.com>
---
fs/ocfs2/alloc.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index a93bf98..6d15c32 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6871,7 +6871,7 @@ int ocfs2_convert_inline_data_to_extents(struct inode
*inode,
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
mlog_errno(ret);
- goto out_unlock;
+ goto out;
}
ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh,
@@ -6929,7 +6929,7 @@ int ocfs2_convert_inline_data_to_extents(struct inode
*inode,
if (ret) {
mlog_errno(ret);
need_free = 1;
- goto out_commit;
+ goto out_unlock;
}
page_end = PAGE_CACHE_SIZE;
@@ -6962,12 +6962,16 @@ int ocfs2_convert_inline_data_to_extents(struct inode
*inode,
if (ret) {
mlog_errno(ret);
need_free = 1;
- goto out_commit;
+ goto out_unlock;
}
inode->i_blocks = ocfs2_inode_sector_count(inode);
}
+out_unlock:
+ if (pages)
+ ocfs2_unlock_and_free_pages(pages, num_pages);
+
out_commit:
if (ret < 0 && did_quota)
dquot_free_space_nodirty(inode,
@@ -6987,15 +6991,11 @@ out_commit:
ocfs2_commit_trans(osb, handle);
-out_unlock:
+out:
if (data_ac)
ocfs2_free_alloc_context(data_ac);
-
-out:
- if (pages) {
- ocfs2_unlock_and_free_pages(pages, num_pages);
+ if (pages)
kfree(pages);
- }
return ret;
}
--
1.8.4.3