[PATCH v3 00/18] UBI: various rework/cleanup/fixes

[Boris Brezillon]

Hi,

Here is a set of cleanup patches (+one fix in patch 4 for a bug that
is unlikely to happen).

Note that I'm not doing that for fun. I'm currently trying to patch UBI
to support the 'LEB consolidation' concept (which is the solution we're
heading to for reliable MLC NAND support), and the duplication of
similar code blocks makes this transition harder to code/review.

Regards,

Boris

Changes since v2:
- fix documentation
- rename ubi_eba_set_table() into ubi_eba_replace_table()
- fix try_recover_peb()
- add a cleanup patch (patch 5)

Changes since v1:
- add a more rework/cleanups to ease future introduction of MLC support

Boris Brezillon (18):
  UBI: fastmap: use ubi_find_volume() instead of open coding it
  UBI: fix add_fastmap() to use the vid_hdr passed in argument
  UBI: fastmap: avoid multiple be32_to_cpu() when unneccesary
  UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC
    header
  UBI: use vol->usable_leb_size instead of (ubi->leb_size -
    vol->data_pad)
  UBI: factorize code used to manipulate volumes at attach time
  UBI: factorize destroy_av() and ubi_remove_av() code
  UBI: fastmap: use ubi_rb_for_each_entry() in unmap_peb()
  UBI: fastmap: use ubi_io_{read,write}_data() instead of
    ubi_io_{read,write}()
  UBI: provide helpers to allocate and free aeb elements
  UBI: move the global ech and vidh variables into struct
    ubi_attach_info
  UBI: simplify recover_peb() code
  UBI: simplify LEB write and atomic LEB change code
  UBI: add an helper to check lnum validity
  UBI: provide an helper to check whether a LEB is mapped or not
  UBI: provide an helper to query LEB information
  UBI: hide EBA internals
  UBI: introduce the VID buffer concept

 drivers/mtd/ubi/attach.c  | 304 ++++++++++++++--------
 drivers/mtd/ubi/build.c   |   2 +-
 drivers/mtd/ubi/cdev.c    |   6 +-
 drivers/mtd/ubi/eba.c     | 645 +++++++++++++++++++++++++++-------------------
 drivers/mtd/ubi/fastmap.c | 188 ++++++--------
 drivers/mtd/ubi/io.c      |  39 +--
 drivers/mtd/ubi/kapi.c    |  16 +-
 drivers/mtd/ubi/ubi.h     | 132 +++++++---
 drivers/mtd/ubi/vmt.c     |  40 ++-
 drivers/mtd/ubi/vtbl.c    |  17 +-
 drivers/mtd/ubi/wl.c      |  19 +-
 11 files changed, 839 insertions(+), 569 deletions(-)

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2.7.4