-/**
- * gfs2_unstuffer_page - unstuff a stuffed inode into a block cached by a page
- * @ip: the inode
- * @dibh: the dinode buffer
- * @block: the block number that was allocated
- * @private: any locked page held by the caller process
- *
- * Returns: errno
- */
-
-int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
- uint64_t block, void *private)
-{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct inode *inode = &ip->i_inode;
- struct page *page = (struct page *)private;
- struct buffer_head *bh;
- int release = 0;
-
- if (!page || page->index) {
- page = grab_cache_page(inode->i_mapping, 0);
- if (!page)
- return -ENOMEM;
- release = 1;
- }
-
- if (!PageUptodate(page)) {
- void *kaddr = kmap(page);
-
- memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
- ip->i_di.di_size);
- memset(kaddr + ip->i_di.di_size, 0,
- PAGE_CACHE_SIZE - ip->i_di.di_size);
- kunmap(page);
-
- SetPageUptodate(page);
- }
-
- if (!page_has_buffers(page))
- create_empty_buffers(page, 1 << inode->i_blkbits,
- (1 << BH_Uptodate));
-
- bh = page_buffers(page);
-
- if (!buffer_mapped(bh))
- map_bh(bh, inode->i_sb, block);
-
- set_buffer_uptodate(bh);
- if ((sdp->sd_args.ar_data == GFS2_DATA_ORDERED) || gfs2_is_jdata(ip))
- gfs2_trans_add_bh(ip->i_gl, bh, 0);
- mark_buffer_dirty(bh);
-
- if (release) {
- unlock_page(page);
- page_cache_release(page);
- }
-
- return 0;
-}
-