| Message ID | 20200207150239.685712-1-damien.lemoal@wdc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [GIT,PULL] New zonefs file system for 5.6-rc1 | expand |
The pull request you sent on Sat, 8 Feb 2020 00:02:39 +0900:
> ssh://git@gitolite.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs.git/ tags/zonefs-5.6-rc1
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/380a129eb2c20d4b7b5be744e80e2ec18b24220b
Thank you!
Hi Linus, Here is a pull request for the new zonefs file system (described briefly below). Please consider it for addition to kernel 5.6. The following changes since commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755: Linux 5.5 (2020-01-26 16:23:03 -0800) are available in the Git repository at: ssh://git@gitolite.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs.git/ tags/zonefs-5.6-rc1 for you to fetch changes up to fcb9c24bef3d1d0942c50fb25fbb8ab45c7c3753: zonefs: Add documentation (2020-02-07 14:40:13 +0900) ---------------------------------------------------------------- fs: New zonefs file system Zonefs is a very simple file system exposing each zone of a zoned block device as a file. Unlike a regular file system with native zoned block device support (e.g. f2fs or the on-going btrfs effort), zonefs does not hide the sequential write constraint of zoned block devices to the user. As a result, zonefs is not a POSIX compliant file system. Its goal is to simplify the implementation of zoned block devices support in applications by replacing raw block device file accesses with a richer file based API, avoiding relying on direct block device file ioctls which may be more obscure to developers. One example of this approach is the implementation of LSM (log-structured merge) tree structures (such as used in RocksDB and LevelDB) on zoned block devices by allowing SSTables to be stored in a zone file similarly to a regular file system rather than as a range of sectors of a zoned device. The introduction of the higher level construct "one file is one zone" can help reducing the amount of changes needed in the application while at the same time allowing the use of zoned block devices with various programming languages other than C. Zonefs IO management implementation uses the new iomap generic code. Zonefs has been successfully tested using a functional test suite (available with zonefs userland format tool on github) and a prototype implementation of LevelDB on top of zonefs. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> ---------------------------------------------------------------- Damien Le Moal (2): fs: New zonefs file system zonefs: Add documentation Documentation/filesystems/zonefs.txt | 404 ++++++++++ MAINTAINERS | 10 + fs/Kconfig | 1 + fs/Makefile | 1 + fs/zonefs/Kconfig | 9 + fs/zonefs/Makefile | 4 + fs/zonefs/super.c | 1439 ++++++++++++++++++++++++++++++++++ fs/zonefs/zonefs.h | 189 +++++ include/uapi/linux/magic.h | 1 + 9 files changed, 2058 insertions(+) create mode 100644 Documentation/filesystems/zonefs.txt create mode 100644 fs/zonefs/Kconfig create mode 100644 fs/zonefs/Makefile create mode 100644 fs/zonefs/super.c create mode 100644 fs/zonefs/zonefs.h