diff options
Diffstat (limited to 'drivers/mtd/ubi/vtbl.c')
| -rw-r--r-- | drivers/mtd/ubi/vtbl.c | 45 |
1 files changed, 27 insertions, 18 deletions
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index 25b3bd61c7ec..56fc3fbce838 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -86,8 +86,10 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, { int i, err; uint32_t crc; + struct ubi_volume *layout_vol; ubi_assert(idx >= 0 && idx < ubi->vtbl_slots); + layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)]; if (!vtbl_rec) vtbl_rec = &empty_vtbl_record; @@ -96,31 +98,25 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, vtbl_rec->crc = cpu_to_be32(crc); } - mutex_lock(&ubi->vtbl_mutex); memcpy(&ubi->vtbl[idx], vtbl_rec, sizeof(struct ubi_vtbl_record)); for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { - err = ubi_eba_unmap_leb(ubi, UBI_LAYOUT_VOL_ID, i); - if (err) { - mutex_unlock(&ubi->vtbl_mutex); + err = ubi_eba_unmap_leb(ubi, layout_vol, i); + if (err) return err; - } - err = ubi_eba_write_leb(ubi, UBI_LAYOUT_VOL_ID, i, ubi->vtbl, 0, + + err = ubi_eba_write_leb(ubi, layout_vol, i, ubi->vtbl, 0, ubi->vtbl_size, UBI_LONGTERM); - if (err) { - mutex_unlock(&ubi->vtbl_mutex); + if (err) return err; - } } paranoid_vtbl_check(ubi); - mutex_unlock(&ubi->vtbl_mutex); - return ubi_wl_flush(ubi); + return 0; } /** - * vol_til_check - check if volume table is not corrupted and contains sensible - * data. - * + * vtbl_check - check if volume table is not corrupted and contains sensible + * data. * @ubi: UBI device description object * @vtbl: volume table * @@ -273,7 +269,7 @@ static int create_vtbl(struct ubi_device *ubi, struct ubi_scan_info *si, * this volume table copy was found during scanning. It has to be wiped * out. */ - sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOL_ID); + sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOLUME_ID); if (sv) old_seb = ubi_scan_find_seb(sv, copy); @@ -285,7 +281,7 @@ retry: } vid_hdr->vol_type = UBI_VID_DYNAMIC; - vid_hdr->vol_id = cpu_to_be32(UBI_LAYOUT_VOL_ID); + vid_hdr->vol_id = cpu_to_be32(UBI_LAYOUT_VOLUME_ID); vid_hdr->compat = UBI_LAYOUT_VOLUME_COMPAT; vid_hdr->data_size = vid_hdr->used_ebs = vid_hdr->data_pad = cpu_to_be32(0); @@ -518,6 +514,17 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, vol->name[vol->name_len] = '\0'; vol->vol_id = i; + if (vtbl[i].flags & UBI_VTBL_AUTORESIZE_FLG) { + /* Auto re-size flag may be set only for one volume */ + if (ubi->autoresize_vol_id != -1) { + ubi_err("more then one auto-resize volume (%d " + "and %d)", ubi->autoresize_vol_id, i); + return -EINVAL; + } + + ubi->autoresize_vol_id = i; + } + ubi_assert(!ubi->volumes[i]); ubi->volumes[i] = vol; ubi->vol_count += 1; @@ -568,6 +575,7 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, vol->last_eb_bytes = sv->last_data_size; } + /* And add the layout volume */ vol = kzalloc(sizeof(struct ubi_volume), GFP_KERNEL); if (!vol) return -ENOMEM; @@ -582,7 +590,8 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, vol->last_eb_bytes = vol->reserved_pebs; vol->used_bytes = (long long)vol->used_ebs * (ubi->leb_size - vol->data_pad); - vol->vol_id = UBI_LAYOUT_VOL_ID; + vol->vol_id = UBI_LAYOUT_VOLUME_ID; + vol->ref_count = 1; ubi_assert(!ubi->volumes[i]); ubi->volumes[vol_id2idx(ubi, vol->vol_id)] = vol; @@ -734,7 +743,7 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si) ubi->vtbl_size = ubi->vtbl_slots * UBI_VTBL_RECORD_SIZE; ubi->vtbl_size = ALIGN(ubi->vtbl_size, ubi->min_io_size); - sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOL_ID); + sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOLUME_ID); if (!sv) { /* * No logical eraseblocks belonging to the layout volume were |