+void hpfs_load_hotfix_map(struct super_block *s, struct hpfs_spare_block *spareblock)
+{
+ struct quad_buffer_head qbh;
+ u32 *directory;
+ u32 n_hotfixes, n_used_hotfixes;
+ unsigned i;
+
+ n_hotfixes = le32_to_cpu(spareblock->n_spares);
+ n_used_hotfixes = le32_to_cpu(spareblock->n_spares_used);
+
+ if (n_hotfixes > 256 || n_used_hotfixes > n_hotfixes) {
+ hpfs_error(s, "invalid number of hotfixes: %u, used: %u", n_hotfixes, n_used_hotfixes);
+ return;
+ }
+ if (!(directory = hpfs_map_4sectors(s, le32_to_cpu(spareblock->hotfix_map), &qbh, 0))) {
+ hpfs_error(s, "can't load hotfix map");
+ return;
+ }
+ for (i = 0; i < n_used_hotfixes; i++) {
+ hpfs_sb(s)->hotfix_from[i] = le32_to_cpu(directory[i]);
+ hpfs_sb(s)->hotfix_to[i] = le32_to_cpu(directory[n_hotfixes + i]);
+ }
+ hpfs_sb(s)->n_hotfixes = n_used_hotfixes;
+ hpfs_brelse4(&qbh);
+}
+