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Subject[PATCH v2 00/21] UBI: various rework/cleanup/fixes
Date
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.

If you want to see the big picture, here is my development branch [1].
It contains the current state of MLC support in UBI. It's not finished
yet, but should give a good idea why the cleanup changes are needed.

Regards,

Boris

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

[1]https://github.com/bbrezillon/linux-sunxi/commits/ubi/mlc

Boris Brezillon (17):
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: 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 | 4 +-
drivers/mtd/ubi/eba.c | 637 +++++++++++++++++++++++++++-------------------
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, 829 insertions(+), 569 deletions(-)

--
2.7.4

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