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| author | shengyong <shengyong1@huawei.com> | 2015-05-26 12:07:10 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2015-06-02 11:47:51 +0200 |
| commit | 2848594a20eb179eb591fd2a37d7edfe045811a0 (patch) | |
| tree | e7b6f5de3151925ce23862e0a1867432110cd97c /drivers/mtd | |
| parent | UBI: Fastmap: Do not add vol if it already exists (diff) | |
| download | linux-2848594a20eb179eb591fd2a37d7edfe045811a0.tar.xz linux-2848594a20eb179eb591fd2a37d7edfe045811a0.zip | |
UBI: add a helper function for updatting on-flash layout volumes
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/ubi/vtbl.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index 68c9c5ea676f..80bdd5b88bac 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -70,6 +70,26 @@ static void self_vtbl_check(const struct ubi_device *ubi); static struct ubi_vtbl_record empty_vtbl_record; /** + * ubi_update_layout_vol - helper for updatting layout volumes on flash + * @ubi: UBI device description object + */ +static int ubi_update_layout_vol(struct ubi_device *ubi) +{ + struct ubi_volume *layout_vol; + int i, err; + + layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)]; + for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { + err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl, + ubi->vtbl_size); + if (err) + return err; + } + + return 0; +} + +/** * ubi_change_vtbl_record - change volume table record. * @ubi: UBI device description object * @idx: table index to change @@ -83,12 +103,10 @@ static struct ubi_vtbl_record empty_vtbl_record; int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, struct ubi_vtbl_record *vtbl_rec) { - int i, err; + int 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; @@ -98,15 +116,10 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, } memcpy(&ubi->vtbl[idx], vtbl_rec, sizeof(struct ubi_vtbl_record)); - for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { - err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl, - ubi->vtbl_size); - if (err) - return err; - } + err = ubi_update_layout_vol(ubi); self_vtbl_check(ubi); - return 0; + return err ? err : 0; } /** @@ -121,9 +134,7 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, int ubi_vtbl_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list) { - int i, err; struct ubi_rename_entry *re; - struct ubi_volume *layout_vol; list_for_each_entry(re, rename_list, list) { uint32_t crc; @@ -145,15 +156,7 @@ int ubi_vtbl_rename_volumes(struct ubi_device *ubi, vtbl_rec->crc = cpu_to_be32(crc); } - layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)]; - for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { - err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl, - ubi->vtbl_size); - if (err) - return err; - } - - return 0; + return ubi_update_layout_vol(ubi); } /** |