ocfs2: Support creation of unwritten extents

This can now be trivially supported with re-use of our existing extend code.

ocfs2_allocate_unwritten_extents() takes a start offset and a byte length
and iterates over the inode, adding extents (marked as unwritten) until len
is reached. Existing extents are skipped over.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index 54df3c4bd2fd..79115c92dc30 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -39,13 +39,14 @@ enum ocfs2_alloc_restarted {
 };
 int ocfs2_do_extend_allocation(struct ocfs2_super *osb,
                                struct inode *inode,
-                               u32 *cluster_start,
+                               u32 *logical_offset,
                                u32 clusters_to_add,
+                               int mark_unwritten,
                                struct buffer_head *fe_bh,
                                handle_t *handle,
                                struct ocfs2_alloc_context *data_ac,
                                struct ocfs2_alloc_context *meta_ac,
-                               enum ocfs2_alloc_restarted *reason);
+                               enum ocfs2_alloc_restarted *reason_ret);
 int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_dinode *di,
                           u32 clusters_to_add, u32 extents_to_split,
                           struct ocfs2_alloc_context **data_ac,