mirror of https://github.com/trapexit/mergerfs.git
304 lines
7.5 KiB
Plaintext
304 lines
7.5 KiB
Plaintext
What is new in 2.9
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- Add "zero copy" support for kernel 2.6.35 or newer
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- Make maximum background requests tunable on kernel 2.6.32 or newer
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- Require --no-canonicalize in (u)mount (util-linux version 2.18 or
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newer) to fix security problems with fusermount
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- Use dynamically sized hash tables in high level library
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- Memory use of filesystem daemon can shrink more easily
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- Add "auto_unmount" option
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- Add "remember" option
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- Add man pages for fusermount, mount.fuse and ulockmgr_server
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- API changes:
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o Introduce "store" and "retrieve" for accessing kernel buffers on
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kernel 2.6.36 or newer
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o Introduce abstract buffer for zero copy operations
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o Allow path calculation to be omitted on certain operations
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o Allow batching forget requests
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o Add "flock" method
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o Add support for ioctl on directories
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o Add delete notification
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o Add fallocate operation (linux kernel 3.5 or newer)
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- Bug fixes and small improvements
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============================================================================
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What is new in 2.8
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- More scalable directory tree locking
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- Atomic open(O_TRUNC) support
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- Support big write requests on kernels 2.6.26 and newer
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- Out-of-tree fuse module removed
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- Better NFS exporting support
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- New ioctl and poll requests
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- New CUSE (Character Device in Userspace) interface
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- Allow umask processing in userspace
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- Added cache invalidation notifications
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- Bugfixes and small improvements
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============================================================================
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What is new in 2.7
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- Stacking support for the high level API
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- Add filename charset conversion module
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- Improved mounting
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============================================================================
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What is new in 2.6
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- Improved read characteristics (asynchronous reads)
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- Support for aborting filesystem connection
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- POSIX file locking support
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- Request interruption support
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- Building module for Linux kernels earlier than 2.6.9 not supported
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- Allow block device based filesystems to support swap files
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- Several bugs fixed, including a rare system hang on SMP
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============================================================================
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What is new in 2.5
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- Merge library part of FreeBSD port
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- New atomic create+open, access and ftruncate operations
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- On filesystems implementing the new create+open operation, and
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running on Linux kernels 2.6.15 or later, the 'cp' operation will
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work correctly when copying read-only files.
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- New option parsing interface added to the library
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- Lots of minor improvements and fixes
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============================================================================
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What is new in 2.4
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- Simplify device opening. Now '/dev/fuse' is a requirement
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- Allow module auto-loading if user has access to '/dev/fuse'
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- Allow mounting over a regular file for unprivileged users
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- Allow mounting of arbitrary FUSE filesystems from /etc/fstab
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- New mount options: 'umask=M', 'uid=N', 'gid=N'
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- Check for non-empty mountpoint, and refuse mount by default. New
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mount option: 'nonempty'
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- Low level (inode based) API added
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- Allow 'direct_io' and 'keep_cache' options to be set on a
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case-by-case basis on open.
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- Add 'attr_timeout' and 'entry_timeout' mount options to the
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high-level library. Until now these timeouts were fixed at 1 sec.
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- Some bugfixes
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============================================================================
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What is new in 2.3
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- Add new directory related operations: opendir(), readdir(),
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releasedir() and fsyncdir()
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- Add init() and destroy() operations which are called before the
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event loop is started and after it has exited
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- Update kernel ABI so that on dual architectures (e.g. AMD64) 32bit
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binaries work under a 64bit kernel
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- Bugfixes
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============================================================================
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What is new in 2.2
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Userspace changes:
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- Add fuse_file_info structure to file operations, this allows the
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filesystem to return a file handle in open() which is passed to
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read(), write(), flush(), fsync() and release().
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- Add source compatibility with 2.1 and 1.4 releases
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- Binary compatibility with 2.1 release is retained
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Kernel changes:
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- Make requests interruptible. This prevents the filesystem to go
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into an unbreakable deadlock with itself.
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- Make readpages() synchronous. Asynchronous requests are deadlock
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prone, since they cannot be interrupted (see above)
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- Remove shared-writeable mapping support, which could deadlock the
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machine
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- Remove INVALIDATE userspace initiated request
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- Update ABI to be independent of sizeof(long), so dual-size archs
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don't cause problems
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- Remove /sys/fs/fuse/version. Version checking is now done through
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the fuse device
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- Replace directory reading method on the kernel interface. Instead
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of passing an open file descriptor to the kernel, send data through
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the FUSE device, like all other operations.
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============================================================================
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What is new in 2.1
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* Bug fixes
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* Improved support for filesystems implementing a custom event-loop
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* Add 'pkg-config' support
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* Kernel module can be compiled separately
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============================================================================
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What is new in 1.9
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* Lots of bugs fixed
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* Minor modifications to the library API
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* Improvements to the kernel/userspace interface
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* Mounting by non-root made more secure
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* Build shared library in addition to the static one
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* Consolidated mount options
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* Optimized reading under 2.6 kernels
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* Direct I/O support
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* Support file I/O on deleted files
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* Extended attributes support
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============================================================================
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What is new in 1.3
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* Thanks to user bugreports and stress testing with LTP and sfx-linux
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a number of bugs were fixed, some quite serious.
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* Fix compile problems with recent SuSE kernles
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============================================================================
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What is new in 1.2
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* Fix mount problems on recent 2.6 kernels with SELinux enabled
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* Fixed writing files lager than 2GBytes
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* Other bugfixes
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============================================================================
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What is new in 1.1
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* Support for the 2.6 kernels
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* Support for exporting filesystem over NFS in 2.6 kernels
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* Read efficiency improvements: read in 64k blocks instead of 4k
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(Michael Grigoriev). Can be turned on with '-l' option of fusermount
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* Lazy automatic unmount
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* Added 'fsync()' VFS call to the FUSE interface
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* Bugfixes
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============================================================================
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What is new in 1.0
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* Cleanups and bugfixes
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* Added 'release()' VFS call to the FUSE interface
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* 64 bit file offsets (handling of > 4 GByte files)
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* libfuse is now under LGPL
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* New 'statfs' call (Mark Glines)
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* Cleaned up mount procedure (mostly by Mark Glines)
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NOTE: Binaries linked with with a previous version of libavfs may
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not work with the new version of the fusermount program. In such
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case recompile the program after installing the new libavfs library.
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* Fix for problems under linux kernel 2.4.19
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============================================================================
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What is new in 0.95
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* Optimized read/write operations. Raw throughput has increased to
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about 60Mbyte/s on a Celeron/360
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* Python bindings by Jeff Epler
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* Perl bindings by Mark Glines
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* Improved multithreaded operation
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* Simplified library interface
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* Bugfixes
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============================================================================
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What is new in 0.9:
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* Everything
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