Lines Matching defs:bu
595 * @bu: bulk-read information
601 struct bu_info *bu, int *n)
603 int i = 0, nn = *n, offs = bu->zbranch[0].offs, hole = 0, read = 0;
626 if (nn >= bu->cnt) {
629 } else if (key_block(c, &bu->zbranch[nn].key) == page_block) {
632 dn = bu->buf + (bu->zbranch[nn].offs - offs);
660 } else if (key_block(c, &bu->zbranch[nn].key) < page_block) {
706 * @bu: bulk-read information
711 static int ubifs_do_bulk_read(struct ubifs_info *c, struct bu_info *bu,
719 int allocate = bu->buf ? 0 : 1;
723 err = ubifs_tnc_get_bu_keys(c, bu);
727 if (bu->eof) {
733 page_cnt = bu->blk_cnt >> UBIFS_BLOCKS_PER_PAGE_SHIFT;
744 if (bu->cnt) {
750 bu->buf_len = bu->zbranch[bu->cnt - 1].offs +
751 bu->zbranch[bu->cnt - 1].len -
752 bu->zbranch[0].offs;
753 ubifs_assert(c, bu->buf_len > 0);
754 ubifs_assert(c, bu->buf_len <= c->leb_size);
755 bu->buf = kmalloc(bu->buf_len, GFP_NOFS | __GFP_NOWARN);
756 if (!bu->buf)
760 err = ubifs_tnc_bulk_read(c, bu);
765 err = populate_page(c, page1, bu, &n);
789 err = populate_page(c, page, bu, &n);
800 kfree(bu->buf);
827 struct bu_info *bu;
862 bu = &c->bu;
864 bu = kmalloc(sizeof(struct bu_info), GFP_NOFS | __GFP_NOWARN);
865 if (!bu)
868 bu->buf = NULL;
872 bu->buf_len = c->max_bu_buf_len;
873 data_key_init(c, &bu->key, inode->i_ino,
875 err = ubifs_do_bulk_read(c, bu, page);
880 kfree(bu);