f2fs: request for tree inclusion

Hi Linus,

This is the first pull request for tree inclusion of Flash-Friendly File System (F2FS) towards the 3.8 merge window.

http://lwn.net/Articles/518718/
http://lwn.net/Articles/518988/
http://en.wikipedia.org/wiki/F2FS

The f2fs has been in the linux-next tree for a while, and several issues have been cleared as described in the signed tag below.
And also, I've done testing f2fs successfully based on Linux 3.7 with the following test scenarios.

- Reliability test:
Run fsstress on an SSD partition.

- Robustness test:
Conduct sudden-power-off and examine the fs consistency repeatedly, while running a reliability test.

So, please pull the f2fs filesystem.
If I'm missing any issues or made mistakes, please let me know.

Thanks,
Jaegeuk Kim

The following changes since commit
29594404d7fe73cd80eaa4ee8c43dcc53970c60e:

Linux 3.7 (2012-12-10 19:30:57 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
tags/for-3.8-merge

for you to fetch changes up to 6666e6aa9f36b2bfd6b30072c07b34f2a24becf1:

f2fs: fix tracking parent inode number (2012-12-11 13:43:45 +0900)

----------------------------------------------------------------
Introduce a new file system, Flash-Friendly File System (F2FS), to Linux 3.8.

Highlights:
- Add initial f2fs source codes
- Fix an endian conversion bug
- Fix build failures on random configs
- Fix the power-off-recovery routine
- Minor cleanup, coding style, and typos patches
----------------------------------------------------------------
Greg Kroah-Hartman (1):
f2fs: move proc files to debugfs

Huajun Li (1):
f2fs: fix a typo in f2fs documentation

Jaegeuk Kim (22):
f2fs: add document
f2fs: add on-disk layout
f2fs: add superblock and major in-memory structure
f2fs: add super block operations
f2fs: add checkpoint operations
f2fs: add node operations
f2fs: add segment operations
f2fs: add file operations
f2fs: add address space operations for data
f2fs: add core inode operations
f2fs: add inode operations for special inodes
f2fs: add core directory operations
f2fs: add xattr and acl functionalities
f2fs: add garbage collection functions
f2fs: add recovery routines for roll-forward
f2fs: update Kconfig and Makefile
f2fs: update the f2fs document
f2fs: fix endian conversion bugs reported by sparse
f2fs: adjust kernel coding style
f2fs: resolve build failures
f2fs: cleanup the f2fs_bio_alloc routine
f2fs: fix tracking parent inode number

Namjae Jeon (10):
f2fs: fix the compiler warning for uninitialized use of variable
f2fs: show error in case of invalid mount arguments
f2fs: remove unneeded memset from init_once
f2fs: check read only condition before beginning write out
f2fs: remove unneeded initialization
f2fs: move error condition for mkdir at proper place
f2fs: rewrite f2fs_bio_alloc to make it simpler
f2fs: make use of GFP_F2FS_ZERO for setting gfp_mask
f2fs: remove redundant call to f2fs_put_page in delete entry
f2fs: introduce accessor to retrieve number of dentry slots

Sachin Kamat (1):
f2fs: remove unneeded version.h header file from f2fs.h

Wei Yongjun (1):
f2fs: remove unused variable

 Documentation/filesystems/00-INDEX |    2 +
 Documentation/filesystems/f2fs.txt |  421 +++++++++
 fs/Kconfig                         |    1 +
 fs/Makefile                        |    1 +
 fs/f2fs/Kconfig                    |   53 ++
 fs/f2fs/Makefile                   |    7 +
 fs/f2fs/acl.c                      |  414 +++++++++
 fs/f2fs/acl.h                      |   57 ++
 fs/f2fs/checkpoint.c               |  794 ++++++++++++++++
 fs/f2fs/data.c                     |  702 ++++++++++++++
 fs/f2fs/debug.c                    |  361 ++++++++
 fs/f2fs/dir.c                      |  672 ++++++++++++++
 fs/f2fs/f2fs.h                     | 1083 ++++++++++++++++++++++
 fs/f2fs/file.c                     |  636 +++++++++++++
 fs/f2fs/gc.c                       |  742 +++++++++++++++
 fs/f2fs/gc.h                       |  117 +++
 fs/f2fs/hash.c                     |   97 ++
 fs/f2fs/inode.c                    |  268 ++++++
 fs/f2fs/namei.c                    |  503 ++++++++++
 fs/f2fs/node.c                     | 1764
+++++++++++++++++++++++++++++++++++
 fs/f2fs/node.h                     |  353 +++++++
 fs/f2fs/recovery.c                 |  375 ++++++++
 fs/f2fs/segment.c                  | 1791
++++++++++++++++++++++++++++++++++++
 fs/f2fs/segment.h                  |  618 +++++++++++++
 fs/f2fs/super.c                    |  657 +++++++++++++
 fs/f2fs/xattr.c                    |  440 +++++++++
 fs/f2fs/xattr.h                    |  145 +++
 include/linux/f2fs_fs.h            |  413 +++++++++
 include/uapi/linux/magic.h         |    1 +
 29 files changed, 13488 insertions(+)
 create mode 100644 Documentation/filesystems/f2fs.txt
 create mode 100644 fs/f2fs/Kconfig
 create mode 100644 fs/f2fs/Makefile
 create mode 100644 fs/f2fs/acl.c
 create mode 100644 fs/f2fs/acl.h
 create mode 100644 fs/f2fs/checkpoint.c
 create mode 100644 fs/f2fs/data.c
 create mode 100644 fs/f2fs/debug.c
 create mode 100644 fs/f2fs/dir.c
 create mode 100644 fs/f2fs/f2fs.h
 create mode 100644 fs/f2fs/file.c
 create mode 100644 fs/f2fs/gc.c
 create mode 100644 fs/f2fs/gc.h
 create mode 100644 fs/f2fs/hash.c
 create mode 100644 fs/f2fs/inode.c
 create mode 100644 fs/f2fs/namei.c
 create mode 100644 fs/f2fs/node.c
 create mode 100644 fs/f2fs/node.h
 create mode 100644 fs/f2fs/recovery.c
 create mode 100644 fs/f2fs/segment.c
 create mode 100644 fs/f2fs/segment.h
 create mode 100644 fs/f2fs/super.c
 create mode 100644 fs/f2fs/xattr.c
 create mode 100644 fs/f2fs/xattr.h
 create mode 100644 include/linux/f2fs_fs.h

Hi Linus,

I'm seeing that f2fs has not been merged yet.
Could you give me any notice for this?
Management priority, or something else?

BTW, I have added a couple of bug fixes since "for-3.8-merge". Which is better sending between [GIT PULL v2] or additional pull request after merge?

Thanks,
Jaegeuk Kim

2012-12-11 (화), 16:58 +0900, Jaegeuk Kim:

Quoted 149 lines

Hi Linus,

This is the first pull request for tree inclusion of Flash-Friendly File System (F2FS) towards the 3.8 merge window.

http://lwn.net/Articles/518718/
http://lwn.net/Articles/518988/
http://en.wikipedia.org/wiki/F2FS

The f2fs has been in the linux-next tree for a while, and several issues have been cleared as described in the signed tag below.
And also, I've done testing f2fs successfully based on Linux 3.7 with the following test scenarios.

- Reliability test:
Run fsstress on an SSD partition.

- Robustness test:
Conduct sudden-power-off and examine the fs consistency repeatedly, while running a reliability test.

So, please pull the f2fs filesystem.
If I'm missing any issues or made mistakes, please let me know.

Thanks,
Jaegeuk Kim

The following changes since commit
29594404d7fe73cd80eaa4ee8c43dcc53970c60e:

Linux 3.7 (2012-12-10 19:30:57 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
tags/for-3.8-merge

for you to fetch changes up to 6666e6aa9f36b2bfd6b30072c07b34f2a24becf1:

f2fs: fix tracking parent inode number (2012-12-11 13:43:45 +0900)

----------------------------------------------------------------
Introduce a new file system, Flash-Friendly File System (F2FS), to Linux 3.8.

Highlights:
- Add initial f2fs source codes
- Fix an endian conversion bug
- Fix build failures on random configs
- Fix the power-off-recovery routine
- Minor cleanup, coding style, and typos patches
----------------------------------------------------------------
Greg Kroah-Hartman (1):
f2fs: move proc files to debugfs

Huajun Li (1):
f2fs: fix a typo in f2fs documentation

Jaegeuk Kim (22):
f2fs: add document
f2fs: add on-disk layout
f2fs: add superblock and major in-memory structure
f2fs: add super block operations
f2fs: add checkpoint operations
f2fs: add node operations
f2fs: add segment operations
f2fs: add file operations
f2fs: add address space operations for data
f2fs: add core inode operations
f2fs: add inode operations for special inodes
f2fs: add core directory operations
f2fs: add xattr and acl functionalities
f2fs: add garbage collection functions
f2fs: add recovery routines for roll-forward
f2fs: update Kconfig and Makefile
f2fs: update the f2fs document
f2fs: fix endian conversion bugs reported by sparse
f2fs: adjust kernel coding style
f2fs: resolve build failures
f2fs: cleanup the f2fs_bio_alloc routine
f2fs: fix tracking parent inode number

Namjae Jeon (10):
f2fs: fix the compiler warning for uninitialized use of variable
f2fs: show error in case of invalid mount arguments
f2fs: remove unneeded memset from init_once
f2fs: check read only condition before beginning write out
f2fs: remove unneeded initialization
f2fs: move error condition for mkdir at proper place
f2fs: rewrite f2fs_bio_alloc to make it simpler
f2fs: make use of GFP_F2FS_ZERO for setting gfp_mask
f2fs: remove redundant call to f2fs_put_page in delete entry
f2fs: introduce accessor to retrieve number of dentry slots

Sachin Kamat (1):
f2fs: remove unneeded version.h header file from f2fs.h

Wei Yongjun (1):
f2fs: remove unused variable

 Documentation/filesystems/00-INDEX |    2 +
 Documentation/filesystems/f2fs.txt |  421 +++++++++
 fs/Kconfig                         |    1 +
 fs/Makefile                        |    1 +
 fs/f2fs/Kconfig                    |   53 ++
 fs/f2fs/Makefile                   |    7 +
 fs/f2fs/acl.c                      |  414 +++++++++
 fs/f2fs/acl.h                      |   57 ++
 fs/f2fs/checkpoint.c               |  794 ++++++++++++++++
 fs/f2fs/data.c                     |  702 ++++++++++++++
 fs/f2fs/debug.c                    |  361 ++++++++
 fs/f2fs/dir.c                      |  672 ++++++++++++++
 fs/f2fs/f2fs.h                     | 1083 ++++++++++++++++++++++
 fs/f2fs/file.c                     |  636 +++++++++++++
 fs/f2fs/gc.c                       |  742 +++++++++++++++
 fs/f2fs/gc.h                       |  117 +++
 fs/f2fs/hash.c                     |   97 ++
 fs/f2fs/inode.c                    |  268 ++++++
 fs/f2fs/namei.c                    |  503 ++++++++++
 fs/f2fs/node.c                     | 1764
+++++++++++++++++++++++++++++++++++
 fs/f2fs/node.h                     |  353 +++++++
 fs/f2fs/recovery.c                 |  375 ++++++++
 fs/f2fs/segment.c                  | 1791
++++++++++++++++++++++++++++++++++++
 fs/f2fs/segment.h                  |  618 +++++++++++++
 fs/f2fs/super.c                    |  657 +++++++++++++
 fs/f2fs/xattr.c                    |  440 +++++++++
 fs/f2fs/xattr.h                    |  145 +++
 include/linux/f2fs_fs.h            |  413 +++++++++
 include/uapi/linux/magic.h         |    1 +
 29 files changed, 13488 insertions(+)
 create mode 100644 Documentation/filesystems/f2fs.txt
 create mode 100644 fs/f2fs/Kconfig
 create mode 100644 fs/f2fs/Makefile
 create mode 100644 fs/f2fs/acl.c
 create mode 100644 fs/f2fs/acl.h
 create mode 100644 fs/f2fs/checkpoint.c
 create mode 100644 fs/f2fs/data.c
 create mode 100644 fs/f2fs/debug.c
 create mode 100644 fs/f2fs/dir.c
 create mode 100644 fs/f2fs/f2fs.h
 create mode 100644 fs/f2fs/file.c
 create mode 100644 fs/f2fs/gc.c
 create mode 100644 fs/f2fs/gc.h
 create mode 100644 fs/f2fs/hash.c
 create mode 100644 fs/f2fs/inode.c
 create mode 100644 fs/f2fs/namei.c
 create mode 100644 fs/f2fs/node.c

Quoted 9 lines

 create mode 100644 fs/f2fs/node.h
 create mode 100644 fs/f2fs/recovery.c
 create mode 100644 fs/f2fs/segment.c
 create mode 100644 fs/f2fs/segment.h
 create mode 100644 fs/f2fs/super.c
 create mode 100644 fs/f2fs/xattr.c
 create mode 100644 fs/f2fs/xattr.h
 create mode 100644 include/linux/f2fs_fs.h

--
Jaegeuk Kim
Samsung

Hi Linus,

An early prototype of this:
https://wiki.linaro.org/WorkingGroups/Kernel/Specs/flash-file-system-prototype

Are you still testing it ?