return 0;
}
+/**
+ * ubi_eba_get_ldesc - get information about a LEB
+ * @vol: volume description object
+ * @lnum: logical eraseblock number
+ * @ldesc: the LEB descriptor to fill
+ *
+ * Used to query information about a specific LEB.
+ * It is currently only returning the physical position of the LEB, but will be
+ * extended to provide more information.
+ */
+void ubi_eba_get_ldesc(struct ubi_volume *vol, int lnum,
+ struct ubi_eba_leb_desc *ldesc)
+{
+ ldesc->lnum = lnum;
+ ldesc->pnum = vol->eba_tbl[lnum];
+}
+
/**
* ltree_lookup - look up the lock tree.
* @ubi: UBI device description object
fm_pos += sizeof(*feba) + (sizeof(__be32) * vol->reserved_pebs);
ubi_assert(fm_pos <= ubi->fm_size);
- for (j = 0; j < vol->reserved_pebs; j++)
- feba->pnum[j] = cpu_to_be32(vol->eba_tbl[j]);
+ for (j = 0; j < vol->reserved_pebs; j++) {
+ struct ubi_eba_leb_desc ldesc;
+
+ ubi_eba_get_ldesc(vol, j, &ldesc);
+ feba->pnum[j] = cpu_to_be32(ldesc.pnum);
+ }
feba->reserved_pebs = cpu_to_be32(j);
feba->magic = cpu_to_be32(UBI_FM_EBA_MAGIC);
int max_size;
};
+/**
+ * struct ubi_eba_leb_desc - EBA logical eraseblock descriptor
+ * @lnum: the logical eraseblock number
+ * @pnum: the physical eraseblock where the LEB can be found
+ *
+ * This structure is here to hide EBA's internal from other part of the
+ * UBI implementation.
+ *
+ * One can query the position of a LEB by calling ubi_eba_get_ldesc().
+ */
+struct ubi_eba_leb_desc {
+ int lnum;
+ int pnum;
+};
+
/**
* struct ubi_volume - UBI volume description data structure.
* @dev: device object to make use of the the Linux device model
}
/* eba.c */
+void ubi_eba_get_ldesc(struct ubi_volume *vol, int lnum,
+ struct ubi_eba_leb_desc *ldesc);
bool ubi_eba_is_mapped(struct ubi_volume *vol, int lnum);
int ubi_eba_unmap_leb(struct ubi_device *ubi, struct ubi_volume *vol,
int lnum);