ocfs2: Write support for directories with inline data
Create all new directories with OCFS2_INLINE_DATA_FL and the inline data
bytes formatted as an empty directory. Inode size field reflects the actual
amount of inline data available, which makes searching for dirent space
very similar to the regular directory search.
Inline-data directories are automatically pushed out to extents on any
insert request which is too large for the available space.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Reviewed-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 72cefe2..4ba7f0b 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -5835,6 +5835,15 @@
memset(&di->id2, 0, blocksize - offsetof(struct ocfs2_dinode, id2));
}
+void ocfs2_dinode_new_extent_list(struct inode *inode,
+ struct ocfs2_dinode *di)
+{
+ ocfs2_zero_dinode_id2(inode, di);
+ di->id2.i_list.l_tree_depth = 0;
+ di->id2.i_list.l_next_free_rec = 0;
+ di->id2.i_list.l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(inode->i_sb));
+}
+
void ocfs2_set_inode_data_inline(struct inode *inode, struct ocfs2_dinode *di)
{
struct ocfs2_inode_info *oi = OCFS2_I(inode);
@@ -5863,7 +5872,6 @@
struct ocfs2_inode_info *oi = OCFS2_I(inode);
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
- struct ocfs2_extent_list *el = &di->id2.i_list;
struct ocfs2_alloc_context *data_ac = NULL;
struct page **pages = NULL;
loff_t end = osb->s_clustersize;
@@ -5956,11 +5964,7 @@
di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
spin_unlock(&oi->ip_lock);
- ocfs2_zero_dinode_id2(inode, di);
-
- el->l_tree_depth = 0;
- el->l_next_free_rec = 0;
- el->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(inode->i_sb));
+ ocfs2_dinode_new_extent_list(inode, di);
ocfs2_journal_dirty(handle, di_bh);