int i, err;
dev_t dev;
- mutex_init(&ubi->volumes_mutex);
- spin_lock_init(&ubi->volumes_lock);
-
sprintf(ubi->ubi_name, UBI_NAME_STR "%d", ubi->ubi_num);
/*
}
/* Similar for the data offset */
- ubi->leb_start = ubi->vid_hdr_offset + ubi->vid_hdr_alsize;
+ ubi->leb_start = ubi->vid_hdr_offset + UBI_EC_HDR_SIZE;
ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size);
dbg_msg("vid_hdr_offset %d", ubi->vid_hdr_offset);
ubi->ro_mode = 1;
}
- dbg_msg("leb_size %d", ubi->leb_size);
- dbg_msg("ro_mode %d", ubi->ro_mode);
+ ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
+ ubi->peb_size, ubi->peb_size >> 10);
+ ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
+ ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
+ if (ubi->hdrs_min_io_size != ubi->min_io_size)
+ ubi_msg("sub-page size: %d",
+ ubi->hdrs_min_io_size);
+ ubi_msg("VID header offset: %d (aligned %d)",
+ ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
+ ubi_msg("data offset: %d", ubi->leb_start);
/*
* Note, ideally, we have to initialize ubi->bad_peb_count here. But
return 0;
}
+/**
+ * autoresize - re-size the volume which has the "auto-resize" flag set.
+ * @ubi: UBI device description object
+ * @vol_id: ID of the volume to re-size
+ *
+ * This function re-sizes the volume marked by the @UBI_VTBL_AUTORESIZE_FLG in
+ * the volume table to the largest possible size. See comments in ubi-header.h
+ * for more description of the flag. Returns zero in case of success and a
+ * negative error code in case of failure.
+ */
+static int autoresize(struct ubi_device *ubi, int vol_id)
+{
+ struct ubi_volume_desc desc;
+ struct ubi_volume *vol = ubi->volumes[vol_id];
+ int err, old_reserved_pebs = vol->reserved_pebs;
+
+ /*
+ * Clear the auto-resize flag in the volume in-memory copy of the
+ * volume table, and 'ubi_resize_volume()' will propogate this change
+ * to the flash.
+ */
+ ubi->vtbl[vol_id].flags &= ~UBI_VTBL_AUTORESIZE_FLG;
+
+ if (ubi->avail_pebs == 0) {
+ struct ubi_vtbl_record vtbl_rec;
+
+ /*
+ * No avalilable PEBs to re-size the volume, clear the flag on
+ * flash and exit.
+ */
+ memcpy(&vtbl_rec, &ubi->vtbl[vol_id],
+ sizeof(struct ubi_vtbl_record));
+ err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
+ if (err)
+ ubi_err("cannot clean auto-resize flag for volume %d",
+ vol_id);
+ } else {
+ desc.vol = vol;
+ err = ubi_resize_volume(&desc,
+ old_reserved_pebs + ubi->avail_pebs);
+ if (err)
+ ubi_err("cannot auto-resize volume %d", vol_id);
+ }
+
+ if (err)
+ return err;
+
+ ubi_msg("volume %d (\"%s\") re-sized from %d to %d LEBs", vol_id,
+ vol->name, old_reserved_pebs, vol->reserved_pebs);
+ return 0;
+}
+
/**
* ubi_attach_mtd_dev - attach an MTD device.
* @mtd_dev: MTD device description object
ubi->mtd = mtd;
ubi->ubi_num = ubi_num;
ubi->vid_hdr_offset = vid_hdr_offset;
+ ubi->autoresize_vol_id = -1;
+
+ mutex_init(&ubi->buf_mutex);
+ mutex_init(&ubi->ckvol_mutex);
+ mutex_init(&ubi->volumes_mutex);
+ spin_lock_init(&ubi->volumes_lock);
- dbg_msg("attaching mtd%d to ubi%d: VID header offset %d",
- mtd->index, ubi_num, vid_hdr_offset);
+ ubi_msg("attaching mtd%d to ubi%d", mtd->index, ubi_num);
err = io_init(ubi);
if (err)
goto out_free;
- mutex_init(&ubi->buf_mutex);
- mutex_init(&ubi->ckvol_mutex);
ubi->peb_buf1 = vmalloc(ubi->peb_size);
if (!ubi->peb_buf1)
goto out_free;
goto out_free;
}
+ if (ubi->autoresize_vol_id != -1) {
+ err = autoresize(ubi, ubi->autoresize_vol_id);
+ if (err)
+ goto out_detach;
+ }
+
err = uif_init(ubi);
if (err)
goto out_detach;
ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num);
ubi_msg("MTD device name: \"%s\"", mtd->name);
ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20);
- ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
- ubi->peb_size, ubi->peb_size >> 10);
- ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
ubi_msg("number of good PEBs: %d", ubi->good_peb_count);
ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count);
- ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
- ubi_msg("VID header offset: %d (aligned %d)",
- ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
- ubi_msg("data offset: %d", ubi->leb_start);
ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots);
ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD);
ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64);
if (mtd_devs > UBI_MAX_DEVICES) {
- printk(KERN_ERR "UBI error: too many MTD devices, "
- "maximum is %d\n", UBI_MAX_DEVICES);
+ ubi_err("too many MTD devices, maximum is %d", UBI_MAX_DEVICES);
return -EINVAL;
}
ubi_class = class_create(THIS_MODULE, UBI_NAME_STR);
if (IS_ERR(ubi_class)) {
err = PTR_ERR(ubi_class);
- printk(KERN_ERR "UBI error: cannot create UBI class\n");
+ ubi_err("cannot create UBI class");
goto out;
}
err = class_create_file(ubi_class, &ubi_version);
if (err) {
- printk(KERN_ERR "UBI error: cannot create sysfs file\n");
+ ubi_err("cannot create sysfs file");
goto out_class;
}
err = misc_register(&ubi_ctrl_cdev);
if (err) {
- printk(KERN_ERR "UBI error: cannot register device\n");
+ ubi_err("cannot register device");
goto out_version;
}
ubi_wl_entry_slab = kmem_cache_create("ubi_wl_entry_slab",
- sizeof(struct ubi_wl_entry),
- 0, 0, NULL);
+ sizeof(struct ubi_wl_entry),
+ 0, 0, NULL);
if (!ubi_wl_entry_slab)
goto out_dev_unreg;
mutex_unlock(&ubi_devices_mutex);
if (err < 0) {
put_mtd_device(mtd);
- printk(KERN_ERR "UBI error: cannot attach %s\n",
- p->name);
+ ubi_err("cannot attach mtd%d", mtd->index);
goto out_detach;
}
}
out_class:
class_destroy(ubi_class);
out:
- printk(KERN_ERR "UBI error: cannot initialize UBI, error %d\n", err);
+ ubi_err("UBI error: cannot initialize UBI, error %d", err);
return err;
}
module_init(ubi_init);
struct mtd_dev_param *p;
char buf[MTD_PARAM_LEN_MAX];
char *pbuf = &buf[0];
- char *tokens[3] = {NULL, NULL, NULL};
+ char *tokens[2] = {NULL, NULL};
if (!val)
return -EINVAL;
if (buf[len - 1] == '\n')
buf[len - 1] = '\0';
- for (i = 0; i < 3; i++)
+ for (i = 0; i < 2; i++)
tokens[i] = strsep(&pbuf, ",");
if (pbuf) {
projects / linux-2.6 / blobdiff