ocfs2: reserve inline space for extended attribute
Add the structures and helper functions we want for handling inline extended
attributes. We also update the inline-data handlers so that they properly
function in the event that we have both inline data and inline attributes
sharing an inode block.
Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index e45421f..ace27d1 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6577,20 +6577,29 @@
return ret;
}
-static void ocfs2_zero_dinode_id2(struct inode *inode, struct ocfs2_dinode *di)
+static void ocfs2_zero_dinode_id2_with_xattr(struct inode *inode,
+ struct ocfs2_dinode *di)
{
unsigned int blocksize = 1 << inode->i_sb->s_blocksize_bits;
+ unsigned int xattrsize = le16_to_cpu(di->i_xattr_inline_size);
- memset(&di->id2, 0, blocksize - offsetof(struct ocfs2_dinode, id2));
+ if (le16_to_cpu(di->i_dyn_features) & OCFS2_INLINE_XATTR_FL)
+ memset(&di->id2, 0, blocksize -
+ offsetof(struct ocfs2_dinode, id2) -
+ xattrsize);
+ else
+ 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);
+ ocfs2_zero_dinode_id2_with_xattr(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));
+ di->id2.i_list.l_count = cpu_to_le16(
+ ocfs2_extent_recs_per_inode_with_xattr(inode->i_sb, di));
}
void ocfs2_set_inode_data_inline(struct inode *inode, struct ocfs2_dinode *di)
@@ -6607,9 +6616,10 @@
* We clear the entire i_data structure here so that all
* fields can be properly initialized.
*/
- ocfs2_zero_dinode_id2(inode, di);
+ ocfs2_zero_dinode_id2_with_xattr(inode, di);
- idata->id_count = cpu_to_le16(ocfs2_max_inline_data(inode->i_sb));
+ idata->id_count = cpu_to_le16(
+ ocfs2_max_inline_data_with_xattr(inode->i_sb, di));
}
int ocfs2_convert_inline_data_to_extents(struct inode *inode,