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[PATCH take 2] UBIFS - new flash file system

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To: LKML <linux-kernel@...>
Cc: Adrian Hunter <ext-adrian.hunter@...>, Artem Bityutskiy <Artem.Bityutskiy@...>
Date: Tuesday, May 6, 2008 - 6:35 am

Hello,

here is the second round of UBIFS submission. Please, refer the following
URL if you are not familiar what is UBIFS about:

http://kerneltrap.org/mailarchive/linux-kernel/2008/3/27/1273514

Additionally, there is a excellent introductional LWN article written by
Jonathan Corbet:
http://lwn.net/Articles/276025/
(thanks Jonathan).

We've addressed most of the requests from the first round and the following
is a rough change log:
* Store milliseconds for [mca]time stamps in the inodes, not only seconds
  (requested by Andi Kleen)
* Documentation/filesystems/ubifs.txt has been added (requested by Josh Boyer)
* do_div() is not anymore used with 'unsigned long long' values
  (requested by Andrew Morton)
* The amount of debugging-related config options was lessened and module
  parameters were introduced instead (requested by Pekka Enberg and
  Christoph Hellwig)
* Many assertions were removed (requested by Pekka Enberg)
* Some debugging checks like custom memory leak and memory pressure checks
  were removed (requested by Pekka Enberg)

Besides, several bugs were fixed both in UBIFS and mkfs.ubifs. The on-flash
format has also been changed because of the inode time-stamp format changes
(milliseconds were added).

We've got few users outside of Nokia who seem to be happy with UBIFS and
utilize it. There were some positive feed-backs from the community, e.g.
http://kerneltrap.org/mailarchive/linux-kernel/2008/4/18/1466334
(thanks Thomas).

We kindly ask for more review and feed-back. We'd also like to get into
Andrew's mm tree.

Thank you,
Adrian Hunter
Artem Bityutskiy

git-diff --stat --summary -M v2.6.25
 Documentation/filesystems/ubifs.txt |  163 ++
 fs/Kconfig                          |    3 +
 fs/Makefile                         |    1 +
 fs/fs-writeback.c                   |    8 +
 fs/ubifs/Kconfig                    |   47 +
 fs/ubifs/Kconfig.debug              |   30 +
 fs/ubifs/Makefile                   |    9 +
 fs/ubifs/budget.c                   |  857 +++++++++
 fs/ubifs/build.c                    | 1374 +++++++++++++++
 fs/ubifs/commit.c                   |  709 ++++++++
 fs/ubifs/compress.c                 |  253 +++
 fs/ubifs/debug.c                    | 1463 ++++++++++++++++
 fs/ubifs/debug.h                    |  392 +++++
 fs/ubifs/dir.c                      |  978 +++++++++++
 fs/ubifs/file.c                     |  902 ++++++++++
 fs/ubifs/find.c                     |  957 +++++++++++
 fs/ubifs/gc.c                       |  773 +++++++++
 fs/ubifs/io.c                       |  921 ++++++++++
 fs/ubifs/ioctl.c                    |  205 +++
 fs/ubifs/journal.c                  | 1264 ++++++++++++++
 fs/ubifs/key.h                      |  507 ++++++
 fs/ubifs/log.c                      |  799 +++++++++
 fs/ubifs/lprops.c                   | 1353 +++++++++++++++
 fs/ubifs/lpt.c                      | 2243 ++++++++++++++++++++++++
 fs/ubifs/lpt_commit.c               | 1625 ++++++++++++++++++
 fs/ubifs/master.c                   |  387 +++++
 fs/ubifs/misc.h                     |  310 ++++
 fs/ubifs/orphan.c                   |  955 +++++++++++
 fs/ubifs/recovery.c                 | 1439 ++++++++++++++++
 fs/ubifs/replay.c                   | 1008 +++++++++++
 fs/ubifs/sb.c                       |  612 +++++++
 fs/ubifs/scan.c                     |  362 ++++
 fs/ubifs/shrinker.c                 |  322 ++++
 fs/ubifs/super.c                    |  525 ++++++
 fs/ubifs/tnc.c                      | 3240 +++++++++++++++++++++++++++++++++++
 fs/ubifs/tnc_commit.c               | 1097 ++++++++++++
 fs/ubifs/tnc_misc.c                 |  259 +++
 fs/ubifs/ubifs-media.h              |  719 ++++++++
 fs/ubifs/ubifs.h                    | 1563 +++++++++++++++++
 fs/ubifs/xattr.c                    |  582 +++++++
 include/linux/writeback.h           |    1 +
 init/do_mounts.c                    |    3 +-
 42 files changed, 31219 insertions(+), 1 deletions(-)
 create mode 100644 Documentation/filesystems/ubifs.txt
 create mode 100644 fs/ubifs/Kconfig
 create mode 100644 fs/ubifs/Kconfig.debug
 create mode 100644 fs/ubifs/Makefile
 create mode 100644 fs/ubifs/budget.c
 create mode 100644 fs/ubifs/build.c
 create mode 100644 fs/ubifs/commit.c
 create mode 100644 fs/ubifs/compress.c
 create mode 100644 fs/ubifs/debug.c
 create mode 100644 fs/ubifs/debug.h
 create mode 100644 fs/ubifs/dir.c
 create mode 100644 fs/ubifs/file.c
 create mode 100644 fs/ubifs/find.c
 create mode 100644 fs/ubifs/gc.c
 create mode 100644 fs/ubifs/io.c
 create mode 100644 fs/ubifs/ioctl.c
 create mode 100644 fs/ubifs/journal.c
 create mode 100644 fs/ubifs/key.h
 create mode 100644 fs/ubifs/log.c
 create mode 100644 fs/ubifs/lprops.c
 create mode 100644 fs/ubifs/lpt.c
 create mode 100644 fs/ubifs/lpt_commit.c
 create mode 100644 fs/ubifs/master.c
 create mode 100644 fs/ubifs/misc.h
 create mode 100644 fs/ubifs/orphan.c
 create mode 100644 fs/ubifs/recovery.c
 create mode 100644 fs/ubifs/replay.c
 create mode 100644 fs/ubifs/sb.c
 create mode 100644 fs/ubifs/scan.c
 create mode 100644 fs/ubifs/shrinker.c
 create mode 100644 fs/ubifs/super.c
 create mode 100644 fs/ubifs/tnc.c
 create mode 100644 fs/ubifs/tnc_commit.c
 create mode 100644 fs/ubifs/tnc_misc.c
 create mode 100644 fs/ubifs/ubifs-media.h
 create mode 100644 fs/ubifs/ubifs.h
 create mode 100644 fs/ubifs/xattr.c
--
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Messages in current thread:
[PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Tue May 6, 6:35 am)
Re: [PATCH take 2] UBIFS - new flash file system, Christoph Hellwig, (Fri May 16, 6:40 am)
Re: [PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Fri May 23, 11:18 am)
Re: [PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Mon May 19, 7:30 am)
Re: [PATCH take 2] UBIFS - new flash file system, Andi Kleen, (Mon May 19, 8:36 am)
Re: [PATCH take 2] UBIFS - new flash file system, Adrian Hunter, (Fri May 16, 9:10 am)
Re: [PATCH take 2] UBIFS - new flash file system, Christoph Hellwig, (Wed May 7, 4:01 am)
Re: [PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Wed May 7, 4:07 am)
Re: [PATCH take 2] UBIFS - new flash file system, Christoph Hellwig, (Wed May 7, 4:10 am)
Re: [PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Wed May 7, 6:31 am)
Re: [PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Wed May 7, 4:32 am)
Re: [PATCH take 2] UBIFS - new flash file system, Artem Bityutskiy, (Wed May 7, 4:11 am)
[PATCH take 2 21/28] UBIFS: add Garbage Collector, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 27/28] UBIFS: add debugging stuff, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 26/28] UBIFS: add header files, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 18/28] UBIFS: add LEB properties tree, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 23/28] UBIFS: add budgeting, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 22/28] UBIFS: add VFS operations, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 24/28] UBIFS: add extended attribute support, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 28/28] UBIFS: include FS to compilation, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 25/28] UBIFS: add orphans handling sub-system, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 20/28] UBIFS: add LEB find subsystem, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 19/28] UBIFS: add LEB properties tree, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 17/28] UBIFS: add LEB properties, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 15/28] UBIFS: add TNC commit implementation, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 02/28] do_mounts: allow UBI root device name, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Tue May 6, 6:35 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Tue May 20, 8:45 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Thu May 22, 6:53 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Thu May 22, 7:00 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Wed May 7, 12:55 pm)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Christoph Hellwig, (Wed May 7, 4:00 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Tue May 13, 4:31 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Christoph Hellwig, (Tue May 13, 4:59 am)
Re: [PATCH take 2 01/28] VFS: introduce writeback_inodes_sb(), Artem Bityutskiy, (Tue May 13, 5:22 am)
[PATCH take 2 05/28] UBIFS: add flash scanning, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 03/28] UBIFS: add brief documentation, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 16/28] UBIFS: add TNC shrinker, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 14/28] UBIFS: add TNC implementation, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 12/28] UBIFS: add the journal, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 13/28] UBIFS: add commit functionality, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 11/28] UBIFS: add key helpers, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 09/28] UBIFS: add file-system recovery, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 08/28] UBIFS: add superblock and master node, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 04/28] UBIFS: add I/O sub-system, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 07/28] UBIFS: add file-system build, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 10/28] UBIFS: add compression support, Artem Bityutskiy, (Tue May 6, 6:35 am)
[PATCH take 2 06/28] UBIFS: add journal replay, Artem Bityutskiy, (Tue May 6, 6:35 am)
Re: [PATCH take 2 06/28] UBIFS: add journal replay, Marcin Slusarz, (Tue May 6, 6:05 pm)
Re: [PATCH take 2 06/28] UBIFS: add journal replay, Artem Bityutskiy, (Wed May 7, 1:57 am)
speck-geostationary