diff options
Diffstat (limited to 'drivers/mtd/ubi/block.c')
| -rw-r--r-- | drivers/mtd/ubi/block.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c index 33c64955d4d..8876c7d3d71 100644 --- a/drivers/mtd/ubi/block.c +++ b/drivers/mtd/ubi/block.c @@ -188,8 +188,9 @@ static int ubiblock_read_to_buf(struct ubiblock *dev, char *buffer, ret = ubi_read(dev->desc, leb, buffer, offset, len); if (ret) { - ubi_err("%s ubi_read error %d", - dev->gd->disk_name, ret); + ubi_err("%s: error %d while reading from LEB %d (offset %d, " + "length %d)", dev->gd->disk_name, ret, leb, offset, + len); return ret; } return 0; @@ -378,7 +379,7 @@ int ubiblock_create(struct ubi_volume_info *vi) { struct ubiblock *dev; struct gendisk *gd; - u64 disk_capacity = ((u64)vi->size * vi->usable_leb_size) >> 9; + u64 disk_capacity = vi->used_bytes >> 9; int ret; if ((sector_t)disk_capacity != disk_capacity) @@ -502,13 +503,8 @@ int ubiblock_remove(struct ubi_volume_info *vi) static int ubiblock_resize(struct ubi_volume_info *vi) { struct ubiblock *dev; - u64 disk_capacity = ((u64)vi->size * vi->usable_leb_size) >> 9; + u64 disk_capacity = vi->used_bytes >> 9; - if ((sector_t)disk_capacity != disk_capacity) { - ubi_warn("%s: the volume is too big, cannot resize (%d LEBs)", - dev->gd->disk_name, vi->size); - return -EFBIG; - } /* * Need to lock the device list until we stop using the device, * otherwise the device struct might get released in @@ -520,10 +516,20 @@ static int ubiblock_resize(struct ubi_volume_info *vi) mutex_unlock(&devices_mutex); return -ENODEV; } + if ((sector_t)disk_capacity != disk_capacity) { + mutex_unlock(&devices_mutex); + ubi_warn("%s: the volume is too big (%d LEBs), cannot resize", + dev->gd->disk_name, vi->size); + return -EFBIG; + } mutex_lock(&dev->dev_mutex); - set_capacity(dev->gd, disk_capacity); - ubi_msg("%s resized to %d LEBs", dev->gd->disk_name, vi->size); + + if (get_capacity(dev->gd) != disk_capacity) { + set_capacity(dev->gd, disk_capacity); + ubi_msg("%s resized to %lld bytes", dev->gd->disk_name, + vi->used_bytes); + } mutex_unlock(&dev->dev_mutex); mutex_unlock(&devices_mutex); return 0; @@ -547,6 +553,14 @@ static int ubiblock_notify(struct notifier_block *nb, case UBI_VOLUME_RESIZED: ubiblock_resize(&nt->vi); break; + case UBI_VOLUME_UPDATED: + /* + * If the volume is static, a content update might mean the + * size (i.e. used_bytes) was also changed. + */ + if (nt->vi.vol_type == UBI_STATIC_VOLUME) + ubiblock_resize(&nt->vi); + break; default: break; } |