diff options
| author | Shmulik Ladkani <shmulik.ladkani@gmail.com> | 2012-07-04 11:06:04 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> | 2012-07-18 14:30:34 +0300 |
| commit | 87e773c95eb0b363f2efcc7aff8a347dc18925d0 (patch) | |
| tree | 76e802802a29567559f4d12d9c4d0ac8cdd63cfb /drivers/mtd/ubi/misc.c | |
| parent | 5c669a5bd8c0f0567127128990d01f9ae320a9ef (diff) | |
UBI: harmonize the update of ubi->beb_rsvd_pebs
Currently, there are several locations where an attempt to reserve more
PEBs for bad PEB handling is made, with the same code being duplicated.
Harmonize it by introducing 'ubi_update_reserved()'.
Also, improve the debug message issued, making it more descriptive.
Artem: amended the patch a little.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd/ubi/misc.c')
| -rw-r--r-- | drivers/mtd/ubi/misc.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c index b57134d1bde..8bbfb444b89 100644 --- a/drivers/mtd/ubi/misc.c +++ b/drivers/mtd/ubi/misc.c @@ -92,6 +92,29 @@ int ubi_check_volume(struct ubi_device *ubi, int vol_id) } /** + * ubi_update_reserved - update bad eraseblock handling accounting data. + * @ubi: UBI device description object + * + * This function calculates the gap between current number of PEBs reserved for + * bad eraseblock handling and the required level of PEBs that must be + * reserved, and if necessary, reserves more PEBs to fill that gap, according + * to availability. Should be called with ubi->volumes_lock held. + */ +void ubi_update_reserved(struct ubi_device *ubi) +{ + int need = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs; + + if (need <= 0 || ubi->avail_pebs == 0) + return; + + need = min_t(int, need, ubi->avail_pebs); + ubi->avail_pebs -= need; + ubi->rsvd_pebs += need; + ubi->beb_rsvd_pebs += need; + ubi_msg("reserved more %d PEBs for bad PEB handling", need); +} + +/** * ubi_calculate_reserved - calculate how many PEBs must be reserved for bad * eraseblock handling. * @ubi: UBI device description object |