diff options
Diffstat (limited to 'drivers/mtd/ubi/kapi.c')
| -rw-r--r-- | drivers/mtd/ubi/kapi.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index f3bab669f6bb..589c423fac2d 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -137,7 +137,7 @@ struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode) return ERR_PTR(-EINVAL); if (mode != UBI_READONLY && mode != UBI_READWRITE && - mode != UBI_EXCLUSIVE) + mode != UBI_EXCLUSIVE && mode != UBI_METAONLY) return ERR_PTR(-EINVAL); /* @@ -182,10 +182,17 @@ struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode) break; case UBI_EXCLUSIVE: - if (vol->exclusive || vol->writers || vol->readers) + if (vol->exclusive || vol->writers || vol->readers || + vol->metaonly) goto out_unlock; vol->exclusive = 1; break; + + case UBI_METAONLY: + if (vol->metaonly || vol->exclusive) + goto out_unlock; + vol->metaonly = 1; + break; } get_device(&vol->dev); vol->ref_count += 1; @@ -343,6 +350,10 @@ void ubi_close_volume(struct ubi_volume_desc *desc) break; case UBI_EXCLUSIVE: vol->exclusive = 0; + break; + case UBI_METAONLY: + vol->metaonly = 0; + break; } vol->ref_count -= 1; spin_unlock(&ubi->volumes_lock); |