+ /* Read small symlink from inode body as we need to maintain correct
+ * on-disk symlinks for ldiskfs.
+ */
+ if (S_ISLNK(obj->oo_dt.do_lu.lo_header->loh_attr) &&
+ (buf->lb_len <= sizeof (LDISKFS_I(inode)->i_data)))
+ rc = osd_ldiskfs_readlink(inode, buf->lb_buf, buf->lb_len);
+ else
+ rc = osd_ldiskfs_read(inode, buf->lb_buf, buf->lb_len, pos);
+
+ return rc;
+}
+
+static int osd_ldiskfs_writelink(struct inode *inode, char *buffer, int buflen)
+{
+
+ memcpy((char*)&LDISKFS_I(inode)->i_data, (char *)buffer,
+ buflen);
+ LDISKFS_I(inode)->i_disksize = buflen;
+ i_size_write(inode, buflen);
+ inode->i_sb->s_op->dirty_inode(inode);
+
+ return 0;
+}
+
+static int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
+ loff_t *offs, handle_t *handle)
+{
+ struct buffer_head *bh = NULL;
+ loff_t offset = *offs;
+ loff_t new_size = i_size_read(inode);
+ unsigned long block;
+ int blocksize = 1 << inode->i_blkbits;
+ int err = 0;
+ int size;
+ int boffs;
+
+ while (bufsize > 0) {
+ if (bh != NULL)
+ brelse(bh);
+
+ block = offset >> inode->i_blkbits;
+ boffs = offset & (blocksize - 1);
+ size = min(blocksize - boffs, bufsize);
+ bh = ldiskfs_bread(handle, inode, block, 1, &err);
+ if (!bh) {
+ CERROR("can't read/create block: %d\n", err);
+ break;
+ }
+
+ err = ldiskfs_journal_get_write_access(handle, bh);
+ if (err) {
+ CERROR("journal_get_write_access() returned error %d\n",
+ err);
+ break;
+ }
+ LASSERTF(boffs + size <= bh->b_size,
+ "boffs %d size %d bh->b_size %lu",
+ boffs, size, (unsigned long)bh->b_size);
+ memcpy(bh->b_data + boffs, buf, size);
+ err = ldiskfs_journal_dirty_metadata(handle, bh);
+ if (err)
+ break;
+
+ if (offset + size > new_size)
+ new_size = offset + size;
+ offset += size;
+ bufsize -= size;
+ buf += size;
+ }
+ if (bh)
+ brelse(bh);
+
+ /* correct in-core and on-disk sizes */
+ if (new_size > i_size_read(inode)) {
+ spin_lock(&inode->i_lock);
+ if (new_size > i_size_read(inode))
+ i_size_write(inode, new_size);
+ if (i_size_read(inode) > LDISKFS_I(inode)->i_disksize) {
+ LDISKFS_I(inode)->i_disksize = i_size_read(inode);
+ inode->i_sb->s_op->dirty_inode(inode);
+ }
+ spin_unlock(&inode->i_lock);
+ }
+
+ if (err == 0)
+ *offs = offset;
+ return err;