changelog

UNIX/LINUX下面的用户文件系统

	* Make readpages() synchronous.  Asynchronous requests are
	deadlock prone, since they cannot be interrupted.

	* Add readv/writev support to fuse device operations

	* Remove some printks, which userspace FS can use for a DoS
	against syslog

	* Remove 'large_read' mount option from 2.6 in kernel, check it in
	fusermount instead

	* LIB: improve compatibility with a fuse.h header installed in
	${prefix}/include which in turn includes the real header.

	* LIB: improve compatibility by defining fuse_main() (which is now
	not used), so old configure scripts find it.

2004-12-10  Miklos Szeredi <[e-mail]>

	* When mounting on a subdirectory of / don't duplicate slashes at
	the beggining of path (spotted by David Shaw)

2004-12-09  Miklos Szeredi <[e-mail]>

	* Fix bug causing garbage in mount options (spotted by David Shaw)

2004-12-07  Miklos Szeredi <[e-mail]>

	* Add 'writepage' flag to 'fuse_file_info'.

	* More comments in fuse.h

	* Get rid of double underscores

2004-12-04  Miklos Szeredi <[e-mail]>

	* Add -D_FILE_OFFSET_BITS=64 to cflags provided by pkg-config

	* helper.c: add -ho option, which only displays the options not
	the usage header.  This can be used by filesystems which have
	their own options.

2004-12-03  Miklos Szeredi <[e-mail]>

	* Add source compatibility to 2.1 and 1.1 APIs.  To select betwen
	versions simply define FUSE_USE_VERSION to 22, 21 or 11 before
	including the fuse header

	* Add binary compatibility to 2.1 version of library with symbol
	versioning

2004-12-03  Miklos Szeredi <[e-mail]>

	* Released 2.1

2004-12-01  Miklos Szeredi <[e-mail]>

	* kernel: clean up writing functions

	* kernel: no allocation on write in direct_io mode

	* move linux/fuse.h to fuse_kernel.h

2004-11-30  Miklos Szeredi <[e-mail]>

	* kernel: clean up reading functions

2004-11-29  Miklos Szeredi <[e-mail]>

	* kernel: make readpage() uninterruptible

	* kernel: check readonly filesystem flag in fuse_permission

	* lib: don't die if version file not found and new style device
	exists

	* lib: add '-r' option, which is short for '-o ro'

	* fusermount: simplify device opening

	* kernel: when direct_io is turend on, copy data directly to
	destination without itermediate buffer.  More efficient and safer,
	since no allocation is done.

	* fusermount: fix warning if fuse module is not loaded

	* kernel: use /dev/fuse on 2.4 too

2004-11-26  Miklos Szeredi <[e-mail]>

	* libfuse API change: open, read, write, flush, fsync and release
	are passed a 'struct fuse_file_info' pointer containing the open
	flags (open and release), and the file handle.  Verion changed to
	3.0.

2004-11-23  Miklos Szeredi <[e-mail]>

	* More cleanups in the kernel

	* The 10,229 charater device number has been assigned for FUSE

	* Version file checking fix (reported by Christian Magnusson)

	* fusermount: opening the fuse device now doesn't need /sys.

	* Optimize reading by controlling the maximum readahead based on
	the 'max_read' mount option

	* fixes for UCLIBC (Christian Magnusson)

2004-11-19  Miklos Szeredi <[e-mail]>

	* Cleaned up kernel in preparation for merge into mainline:

	* Use /sys/fs/fuse/version instead of /proc/fs/fuse/version

	* Use real device (/dev/fuse) instead of /proc/fs/fuse/dev

	* __user annotations for sparse

	* allocate individual pages instead of kmalloc in fuse_readdir,
	fuse_read and fuse_write.

	* Fix NFS export in case "use_ino" mount option is given

	* Make libfuse and fusermount compatible with future versions

	* fusermount: properly add mount options to /etc/mtab

2004-11-15  Miklos Szeredi <[e-mail]>

	* fusermount: do not resolve last component of mountpoint on if it
	is '.' or '..'.  This new path resolvation is now done on mount as
	well as unmount.  This enables relative paths to work on unmount.

	* fusermount: parse common mount options like "ro", "rw", etc...

	* Allow module params to be changed through sysfs

2004-11-14  Miklos Szeredi <[e-mail]>

	* Released 2.1-pre1

2004-11-14  Miklos Szeredi <[e-mail]>

	* Fix bug in fuse_readpages() causing Oops in certain situations.
	Bug found by Vincenzo Ciancia.

	* Fix compilation with kernels versions > 2.6.9.

2004-11-11  Miklos Szeredi <[e-mail]>

	* Check kernel interface version in fusermount to prevent
	strangeness in case of mismatch.

	* No need to allocate fuse_conn until actual mount happens

	* Fix potential race between umount and fuse_invalidate

	* Check superblock of proc file in addition to inode number

	* Fix race between request_send_noreply() and fuse_dev_release()

2004-11-10  Miklos Szeredi <[e-mail]>

	* Separate configure for the kernel directory

	* Don't allow write to return more than 'count'

	* Extend kernel interface for future use

2004-11-09  Miklos Szeredi <[e-mail]>

	* Fix 'makeconf.sh' to use autoreconf if available

2004-11-08  Miklos Szeredi <[e-mail]>

	* Add ino argument to 'fuse_dirfil_t'.  NOTE: This breaks source
	compatibility with earlier versions.  To compile earier versions
	just add '-DFUSE_DIRFIL_COMPAT' compile flag or fix the source.
	Do not use the "use_ino" mount flag with filesystems compiled with
	FUSE_DIRFIL_COMPAT.

	* Add pkg-config support.  To compile a FUSE based filesystem you
	can do  "gcc -Wall `pkg-config --cflags --libs fuse` myfs.c -o myfs"
	or similar.  Note, that the PKG_CONFIG_PATH environment variable
	usually needs to be set to "/usr/local/lib/pkgconfig".

	* fuse.h is now installed in ${prefix}/include/fuse/

2004-11-02  Miklos Szeredi <[e-mail]>

	* Added "use_ino" mount option.  This enables the filesystems to
	set the st_ino field on files

2004-11-01  Miklos Szeredi <[e-mail]>

	* Fix compile problems with ancient (<=2.4.18) kernels (reported
	by Jeremy Smith)

	* Add "allow_root" mount option.  Patch by Yaroslav Rastrigin

	* Clear the 'exited' flag when mail loop is finished

2004-10-28  Miklos Szeredi <[e-mail]>

	* Make xattr functions work under 2.6 (bug found by Vincenzo
	Ciancia)

2004-10-26  Miklos Szeredi <[e-mail]>

	* Reset request in fuse_flush() (bugreport by David Shaw)

2004-10-21  Miklos Szeredi <[e-mail]>

	* fuse_main() now does not exit on error, rather it returns an
	error code

	* Exported __fuse_setup() and __fuse_teardown() functions, which
	make it easier to implement a custom event loop.

	* Use daemon() call to background the filesystem after mounting.
	This function closes the standard input, output and error and
	changes the current working directory to "/".

2004-10-14  Miklos Szeredi <[e-mail]>

	* Released 1.9

2004-10-09  Miklos Szeredi <[e-mail]>

	* Don't allow fuse_flush() to be interrupted (bug found by David
	Shaw)

2004-09-27  Miklos Szeredi <[e-mail]>

	* Add PID to fuse_context.  Patch by Steven James

	* Change file handle type to 'unsigned long' in kernel interface

2004-09-22  Miklos Szeredi <[e-mail]>

	* A slight API change: fuse_get_context() doesn't need the "fuse"
	pointer, but the returned context contains it instead.  The
	fuse_get() function is not needed anymore, so it's removed.

	* Fix mounting and umounting FUSE filesystem under another FUSE
	filesystem by non-root (bug spotted by Valient Gough)

2004-09-21  Miklos Szeredi <[e-mail]>

	* Fix deadlock in case of memory allocation failure.  Patch by
	Christian Magnusson

2004-09-16  Miklos Szeredi <[e-mail]>

	* Check memory allocation failures in libfuse

2004-09-14  Miklos Szeredi <[e-mail]>

	* Check temporary file creation failure in do_getdir().  Bug
	spotted by Terje Oseberg

2004-09-13  Miklos Szeredi <[e-mail]>

	* Allow "large_read" option for 2.6 kernels but warn of deprecation

	* Make requests non-interruptible so race with FORGET is avoided.
	This is only a temporary solution

	* Support compiling FUSE kernel module on 2.4.x UML kernels

2004-09-09  Miklos Szeredi <[e-mail]>

	* Fix bug in case two FORGETs for the same node are executed in
	the wrong order.  Bug spotted and endured for months by Franco
	Broi, and logfile for solution provided by Terje Oseberg

2004-09-01  Miklos Szeredi <[e-mail]>

	* Add -D_REENTRANT to the compile flags

	* Add documentation of fuse internals by Terje Oseberg

2004-08-16  Miklos Szeredi <[e-mail]>

	* Change release method to be non-interruptible.  Fixes bug
	causing missing release() call when program which has opened files
	is killed (reported by Franco Broi and David Shaw)

2004-07-29  Miklos Szeredi <[e-mail]>

	* Add fuse_invalidate() to library API

2004-07-26  Miklos Szeredi <[e-mail]>

	* Check permissions in setattr if 'default_permissions' flag is
	set.  Bug spotted by Damjan Lango

2004-07-24  Miklos Szeredi <[e-mail]>

	* 'large_read' mount option removed for 2.6 kernels, since the
	default (dynamic read size) is better

	* Extend kernel API with file handles.  A file handle is returned
	by open, and passed to read, write, flush, fsync and release.
	This is currently only used for debug output in the library.

	* Security changes:

	* Change the current directory to the mountpoint before checking
	the permissions and mount filesystem on "."

	* By default don't modprobe the fuse module for non-root.  The old
	behavior can be restored with the '--enable-auto-modprobe' flag of
	./configure

	* By default don't allow shared writable mappings for non-root.
	The old behavior can be restored with the 'user_mmap=1' module
	parameter

2004-07-23  Miklos Szeredi <[e-mail]>

	* Clean up mount option passing to fusermount and to fuse_new()
	BEWARE: this changes the userspace API slightly, and the command
	line usage of programs using fuse_main()

2004-07-20  Miklos Szeredi <[e-mail]>

	* Optimize reading under 2.6 kernels by issuing multiple page
	asynchronous read requests

2004-07-18  Miklos Szeredi <[e-mail]>

	* Only use redirty_page_for_writepage() for kernels >= 2.6.6

2004-07-16  Miklos Szeredi <[e-mail]>

	* Separate directory entry and inode attribute validity timer

	* New write semaphore to stop page writeback during truncate

	* Fsync now waits for all writes to complete before sending the
	request

	* Optimization: if a page is completely written by
	fuse_commit_write(), clear the dirty flag and set the uptodate
	flag for that page

	* Some memory cleanup at exit

2004-07-13  Miklos Szeredi <[e-mail]>

	* Add FUSE_HARD_REMOVE flag, and '-i' option to fuse main, which
	disable the "hide if open" behavior of unlink/rename.

	* If temporary buffer allocation fails in raw read, fall back to a
	smaller buffer

2004-07-12  Miklos Szeredi <[e-mail]>

	* Fix bug in do_open() in libfuse: open count was incremented
	after the reply is sent so it could race with unlink/forget and
	cause an abort.

2004-07-08  Miklos Szeredi <[e-mail]>

	* When performing create or remove operation, refresh the parent's
	attributes on next revalidate, as i_nlink (and maybe size/time)
	could be inacurate.

	* Use redirty_page_for_writepage() in fuse_writepage() for skipped
	pages (2.6 only)

	* Set set_page_dirty address space operation (2.6 only)

2004-07-06  Miklos Szeredi <[e-mail]>

	* Minor fix in read:  print debug info even if read size is zero

2004-07-04  Miklos Szeredi <[e-mail]>

	* Fix race between truncate and writepage (fsx-linux now runs
	without error)

2004-07-02  Miklos Szeredi <[e-mail]>

	* Fix kernel hang on mkfifo under 2.4 kernels (spotted and patch
	by Mattias Wadman)

	* Added option for direct read/write (-r)

	* Fix revalidate time setting for newly created inodes

	* Remove uid==0 check for '-x' option in fusermount (kernel checks
	this)

	* fuse_main() only installs handlers for signals (out of INT, HUP,
	TERM, PIPE), for which no handler has yet been installed

	* Add module option 'user_allow_other' which if set to non-zero
	will allow non root user to specify the 'allow_other' mount option
	('-x' option of fusermount)

	* Fix deadlock between page writeback completion and truncate
	(bug found by Valient Gough with the fsx-linux utility)

2004-07-01  Miklos Szeredi <[e-mail]>

	* Change passing fuse include dir to 2.6 kernel make system more
	robust (fixes compile problems seen on SuSE 9.1 with updated 2.6
	kernel)

2004-06-30  Miklos Szeredi <[e-mail]>

	* Acquire inode->i_sem before open and release methods to prevent
	concurrent rename or unlink operations.

	* Make __fuse_read_cmd() read only one command.  This allows
	multiplexing the fuse file descriptor with other event sources
	using select() or poll() (patch by Jeff Harris)

	* Export 'exited' flag with __fuse_exited() (patch by Jeff Harris)

2004-06-27  Miklos Szeredi <[e-mail]>

	* Fix file offset wrap around at 4G when doing large reads

2004-06-24  Miklos Szeredi <[e-mail]>

	* Fix memory leak in open (Valient Gough)

2004-06-24  Miklos Szeredi <[e-mail]>

	* Add "close after delete" support to libfuse (patch by Valient
	Gough)

	* Cancel all worker threads before exit in multithreaded mode

2004-06-23  Miklos Szeredi <[e-mail]>

	* Fix locking bugs

	* Don't send reply to RELEASE

	* Work with newer libtool (1.5a)

	* Check for st_atim member of struct stat

2004-06-22  Miklos Szeredi <[e-mail]>

	* No request allocation needed on inode and file release

2004-06-21  Miklos Szeredi <[e-mail]>

	* Fix possible inode leak in userspace in case of unfinished
	lookup/mknod/mkdir/symlink/link operation.

2004-06-20  Miklos Szeredi <[e-mail]>

	* Fix some races and cleanups in fuse_read_super()

2004-06-19  Miklos Szeredi <[e-mail]>

	* Requests are allocated at open time

2004-06-03  Miklos Szeredi <[e-mail]>

	* Build shared library as well as static (using libtool)