Filesystem in Userspace

File Release Notes and Changelog

Release Name: 2.3.0

Notes:
What is new in 2.3

 - Add new directory related operations: opendir(), readdir(),
   releasedir() and fsyncdir()

 - Add init() and destroy() operations which are called before the
   event loop is started and after it has exited

 - Update kernel ABI so that on dual architectures (e.g. AMD64) 32bit
   binaries work under a 64bit kernel

 - Bugfixes



Changes:
2005-06-02  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3.0

2005-06-02  Miklos Szeredi <miklos@szeredi.hu>

	* Fix serious information leak: if the filesystem returns a short
	byte count to a read request, and there are non-zero number of
	pages which are not filled at all, these pages will not be zeroed.
	Hence the user can read out previous memory contents.  Found by
	Sven Tantau.

2005-05-27  Miklos Szeredi <miklos@szeredi.hu>

	* Add "readdir_ino" mount option, which tries to fill in the d_ino
	field in struct dirent.  This mount option is ignored if "use_ino"
	is used.  It helps some programs (e.g. 'pwd' used over NFS from a
	non-Linux OS).  Patch by David Shaw.

2005-05-12  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-rc1

2005-05-12  Miklos Szeredi <miklos@szeredi.hu>

	* File save in krusader and other editors doesn't work with sshfs,
	because open() is interrupted by a periodic signal, and open()
	restarts forever, without any progress.  This could just be fixed
	in open(), but the problem is more generic: if signals are
	received more often than the filesystem can get the request to
	userspace, it will never finish.  This is probably only a
	theoretical problem, nevertheless I'm removing the possibility to
	interrupt requests with anything other than SIGKILL, even before
	being sent to userspace.  Bugreport by Eduard Czimbalmos.

2005-05-09  Miklos Szeredi <miklos@szeredi.hu>

	* libfuse: add "tree_lock" rwlock, that is locked for write in
	rename, unlink and rmdir, and locked for read in all other
	operations.  This should fix the rename/release race reported by
	Valient Gough and others.  The solution is very coarse, a finer
	grained locking scheme could be implemented, but it would be much
	more complex.  Let's see whether this is good enough.

2005-05-09  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre7

2005-05-08  Miklos Szeredi <miklos@szeredi.hu>

	* Better fix for out of order FORGET messages.  Now the
	LOOKUP/FORGET messages are balanced exactly (one FORGET can
	balance many lookups), so the order no longer matters.  This
	changes the kernel ABI slightly, but the library remains backward
	compatible.

2005-05-06  Miklos Szeredi <miklos@szeredi.hu>

	* Fix abort for out of order FORGET messages.  Again.  Spotted by
	Franco Broi again.  Sorry :)

2005-04-29  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre6

2005-04-29  Miklos Szeredi <miklos@szeredi.hu>

	* Make fusermount work with fuse kernel modules not yet supporting
	the "group_id" option (added for the purpose of stricter
	permission checking).

2005-04-28  Miklos Szeredi <miklos@szeredi.hu>

	* Check for hard-linked directories in lookup.  This could cause
	problems in the VFS, which assumes that such objects never exist.

	* Make checking of permission for other users more strict.  Now
	the same privilege is required for the mount owner as for ptrace
	on the process performing the filesystem operation.

2005-04-23  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre5

2005-04-22  Miklos Szeredi <miklos@szeredi.hu>

	* Add -msoft-float to kernel module compile flags for 2.4.X.  This
	is needed on certain architectures.  Report from Chris Kirby

	* Fix buggy behavior of open(..., O_CREAT|O_EXCL) if interrupted.
	Reported by David Shaw

	* Remove "allow_root" option from kernel module, and implement
	it's functionality in the library

	* Fix Oops caused by premature release of fuse_conn.  Clean up
	related code, to be more readable

	* Sendfile should not use page cache if "direct_io" mount option
	is given

2005-04-08  Miklos Szeredi <miklos@szeredi.hu>

	* Fix Oops in case of nfs export.  Spotted by David Shaw

	* Fix another Oops in case of write over nfs with direct_io turned
	on.  Again spotted by David Shaw

2005-04-07  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre4

2005-04-07  Miklos Szeredi <miklos@szeredi.hu>

	* lib: finalized new readdir() interface, which now supersedes the
	getdir() method.

2005-04-03  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre3

2005-04-03  Miklos Szeredi <miklos@szeredi.hu>

	* Implement backward compatibility with version 5 kernel ABI

2005-04-01  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre2

2005-04-01  Miklos Szeredi <miklos@szeredi.hu>

	* kernel: fix dirent offset handling

	* lib: add readdir and releasedir methods

	* lib: use fh field of fuse_file_info in opendir, readdir,
	releasedir and fsyncdir methods

	* lib: check kernel API version and bail out of it's old.  This
	will be properly fixed in the next release

2005-03-31  Miklos Szeredi <miklos@szeredi.hu>

	* Released 2.3-pre1

2005-03-31  Miklos Szeredi <miklos@szeredi.hu>

	* kernel API: add padding to structures, so 64bit and 32bit
	compiler will return the same size

	* kernel API: add offset field to fuse_dirent.  This will allow
	more sophisticated readdir interface for userspace

	* kernel API: change major number to 6

	* kernel: fix warnings on 64bit archs

	* kernel: in case of API version mismatch, return ECONNREFUSED

2005-03-24  Miklos Szeredi <miklos@szeredi.hu>

	* kernel: trivial cleanups

2005-03-21  Miklos Szeredi <miklos@szeredi.hu>

	* Add fsyncdir() operation

2005-03-19  Miklos Szeredi <miklos@szeredi.hu>

	* kernel: add locking to background list (fixes previous fix)

2005-03-18  Miklos Szeredi <miklos@szeredi.hu>

	* kernel: fix bug which could cause leave busy inodes after
	unmount, and Oops.

2005-03-08  Miklos Szeredi <miklos@szeredi.hu>

	* examples: add -lpthread to link flags to work around valgrind
	quirk

	* lib: don't exit threads, so cancelation doesn't cause segfault

2005-03-04  Miklos Szeredi <miklos@szeredi.hu>

	* kernel: fix nasty bug which could cause an Oops under certain
	situations.  Found by Magnus Johansson

2005-02-28  Miklos Szeredi <miklos@szeredi.hu>

	* libfuse: added opendir() method.  This can be used in case
	permission checking in getdir() is too late.  Thanks to Usarin
	Heininga for pointing out this deficiency

	* libfuse: added init() and destroy() methods to fuse_operations

	* kernel: llseek() method for files and directories made explicit

	* kernel: fixed inode leak in NFS export in case of nodeid
	wrapping

2005-02-15  Miklos Szeredi <miklos@szeredi.hu>

	* libfuse: clean up some unitialized memory found with valgrind

	* Add -lpthread to Libs in fuse.pc.  Valgrind seems to need an
	explicitly linked libpthread for applications

2005-02-10  Miklos Szeredi <miklos@szeredi.hu>

	* fusermount: set umask, otherwise /etc/mtab will have
	unpredictable permission.  Spotted by Jindrich Kolorenc

	* fusermount: set owner and group of /etc/mtab to original values
	on unmount

	* libfuse: add 'use_ino' option to help.  Patch by Valient Gough

2005-02-07  Miklos Szeredi <miklos@szeredi.hu>

	* Cleaned up directory reading (temporary file is not used)