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-/* -*- auto-fill -*- */
-===============================================================================
-Changes for patch v1
-
-- creation of devfs
-
-- modified miscellaneous character devices to support devfs
-===============================================================================
-Changes for patch v2
-
-- bug fix with manual inode creation
-===============================================================================
-Changes for patch v3
-
-- bugfixes
-
-- documentation improvements
-
-- created a couple of scripts (one to save&restore a devfs and the
- other to set up compatibility symlinks)
-
-- devfs support for SCSI discs. New name format is: sd_hHcCiIlL
-===============================================================================
-Changes for patch v4
-
-- bugfix for the directory reading code
-
-- bugfix for compilation with kerneld
-
-- devfs support for generic hard discs
-
-- rationalisation of the various watchdog drivers
-===============================================================================
-Changes for patch v5
-
-- support for mounting directly from entries in the devfs (it doesn't
- need to be mounted to do this), including the root filesystem.
- Mounting of swap partitions also works. Hence, now if you set
- CONFIG_DEVFS_ONLY to 'Y' then you won't be able to access your discs
- via ordinary device nodes. Naturally, the default is 'N' so that you
- can still use your old device nodes. If you want to mount from devfs
- entries, make sure you use: append = "root=/dev/sd_..." in your
- lilo.conf. It seems LILO looks for the device number (major&minor)
- and writes that into the kernel image :-(
-
-- support for character memory devices (/dev/null, /dev/zero, /dev/full
- and so on). Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-===============================================================================
-Changes for patch v6
-
-- support for subdirectories
-
-- support for symbolic links (created by devfs_mk_symlink(), no
- support yet for creation via symlink(2))
-
-- SCSI disc naming now cast in stone, with the format:
- /dev/sd/c0b1t2u3 controller=0, bus=1, ID=2, LUN=3, whole disc
- /dev/sd/c0b1t2u3p4 controller=0, bus=1, ID=2, LUN=3, 4th partition
-
-- loop devices now appear in devfs
-
-- tty devices, console, serial ports, etc. now appear in devfs
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- bugs with mounting devfs-only devices now fixed
-===============================================================================
-Changes for patch v7
-
-- SCSI CD-ROMS, tapes and generic devices now appear in devfs
-===============================================================================
-Changes for patch v8
-
-- bugfix with no-rewind SCSI tapes
-
-- RAMDISCs now appear in devfs
-
-- better cleaning up of devfs entries created by various modules
-
-- interface change to <devfs_register>
-===============================================================================
-Changes for patch v9
-
-- the v8 patch was corrupted somehow, which would affect the patch for
- linux/fs/filesystems.c
- I've also fixed the v8 patch file on the WWW
-
-- MetaDevices (/dev/md*) should now appear in devfs
-===============================================================================
-Changes for patch v10
-
-- bugfix in meta device support for devfs
-
-- created this ChangeLog file
-
-- added devfs support to the floppy driver
-
-- added support for creating sockets in a devfs
-===============================================================================
-Changes for patch v11
-
-- added DEVFS_FL_HIDE_UNREG flag
-
-- incorporated better patch for ttyname() in libc 5.4.43 from H.J. Lu.
-
-- interface change to <devfs_mk_symlink>
-
-- support for creating symlinks with symlink(2)
-
-- parallel port printer (/dev/lp*) now appears in devfs
-===============================================================================
-Changes for patch v12
-
-- added inode check to <devfs_fill_file> function
-
-- improved devfs support when mounting from devfs
-
-- added call to <<release>> operation when removing swap areas on
- devfs devices
-
-- increased NR_SUPER to 128 to support large numbers of devfs mounts
- (for chroot(2) gaols)
-
-- fixed bug in SCSI disc support: was generating incorrect minors if
- SCSI ID's did not start at 0 and increase by 1
-
-- support symlink traversal when mounting root
-===============================================================================
-Changes for patch v13
-
-- added devfs support to soundcard driver
- Thanks to Eric Dumas <dumas@linux.eu.org> and
- C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- added devfs support to the joystick driver
-
-- loop driver now has it's own subdirectory "/dev/loop/"
-
-- created <devfs_get_flags> and <devfs_set_flags> functions
-
-- fix problem with SCSI disc compatibility names (sd{a,b,c,d,e,f})
- which assumes ID's start at 0 and increase by 1. Also only create
- devfs entries for SCSI disc partitions which actually exist
- Show new names in partition check
- Thanks to Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
-===============================================================================
-Changes for patch v14
-
-- bug fix in floppy driver: would not compile without
- CONFIG_DEVFS_FS='Y'
- Thanks to Jurgen Botz <jbotz@nova.botz.org>
-
-- bug fix in loop driver
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- do not create devfs entries for printers not configured
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- do not create devfs entries for serial ports not present
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- ensure <tty_register_devfs> is exported from tty_io.c
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- allow unregistering of devfs symlink entries
-
-- fixed bug in SCSI disc naming introduced in last patch version
-===============================================================================
-Changes for patch v15
-
-- ported to kernel 2.1.81
-===============================================================================
-Changes for patch v16
-
-- created <devfs_set_symlink_destination> function
-
-- moved DEVFS_SUPER_MAGIC into header file
-
-- added DEVFS_FL_HIDE flag
-
-- created <devfs_get_maj_min>
-
-- created <devfs_get_handle_from_inode>
-
-- fixed bugs in searching by major&minor
-
-- changed interface to <devfs_unregister>, <devfs_fill_file> and
- <devfs_find_handle>
-
-- fixed inode times when symlink created with symlink(2)
-
-- change tty driver to do auto-creation of devfs entries
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- fixed bug in genhd.c: whole disc (non-SCSI) was not registered to
- devfs
-
-- updated libc 5.4.43 patch for ttyname()
-===============================================================================
-Changes for patch v17
-
-- added CONFIG_DEVFS_TTY_COMPAT
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- bugfix in devfs support for drivers/char/lp.c
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- clean up serial driver so that PCMCIA devices unregister correctly
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- fixed bug in genhd.c: whole disc (non-SCSI) was not registered to
- devfs [was missing in patch v16]
-
-- updated libc 5.4.43 patch for ttyname() [was missing in patch v16]
-
-- all SCSI devices now registered in /dev/sg
-
-- support removal of devfs entries via unlink(2)
-===============================================================================
-Changes for patch v18
-
-- added floppy/?u720 floppy entry
-
-- fixed kerneld support for entries in devfs subdirectories
-
-- incorporated latest patch for ttyname() in libc 5.4.43 from H.J. Lu.
-===============================================================================
-Changes for patch v19
-
-- bug fix when looking up unregistered entries: kerneld was not called
-
-- fixes for kernel 2.1.86 (now requires 2.1.86)
-===============================================================================
-Changes for patch v20
-
-- only create available floppy entries
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- new IDE naming scheme following SCSI format (i.e. /dev/id/c0b0t0u0p1
- instead of /dev/hda1)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- new XT disc naming scheme following SCSI format (i.e. /dev/xd/c0t0p1
- instead of /dev/xda1)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- new non-standard CD-ROM names (i.e. /dev/sbp/c#t#)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- allow symlink traversal when mounting the root filesystem
-
-- Create entries for MD devices at MD init
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-===============================================================================
-Changes for patch v21
-
-- ported to kernel 2.1.91
-===============================================================================
-Changes for patch v22
-
-- SCSI host number patch ("scsihosts=" kernel option)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-===============================================================================
-Changes for patch v23
-
-- Fixed persistence bug with device numbers for manually created
- device files
-
-- Fixed problem with recreating symlinks with different content
-
-- Added CONFIG_DEVFS_MOUNT (mount devfs on /dev at boot time)
-===============================================================================
-Changes for patch v24
-
-- Switched from CONFIG_KERNELD to CONFIG_KMOD: module autoloading
- should now work again
-
-- Hide entries which are manually unlinked
-
-- Always invalidate devfs dentry cache when registering entries
-
-- Support removal of devfs directories via rmdir(2)
-
-- Ensure directories created by <devfs_mk_dir> are visible
-
-- Default no access for "other" for floppy device
-===============================================================================
-Changes for patch v25
-
-- Updates to CREDITS file and minor IDE numbering change
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- Invalidate devfs dentry cache when making directories
-
-- Invalidate devfs dentry cache when removing entries
-
-- More informative message if root FS mount fails when devfs
- configured
-
-- Fixed persistence bug with fifos
-===============================================================================
-Changes for patch v26
-
-- ported to kernel 2.1.97
-
-- Changed serial directory from "/dev/serial" to "/dev/tts" and
- "/dev/consoles" to "/dev/vc" to be more friendly to new procps
-===============================================================================
-Changes for patch v27
-
-- Added support for IDE4 and IDE5
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- Documented "scsihosts=" boot parameter
-
-- Print process command when debugging kerneld/kmod
-
-- Added debugging for register/unregister/change operations
-
-- Added "devfs=" boot options
-
-- Hide unregistered entries by default
-===============================================================================
-Changes for patch v28
-
-- No longer lock/unlock superblock in <devfs_put_super> (cope with
- recent VFS interface change)
-
-- Do not automatically change ownership/protection of /dev/tty
-
-- Drop negative dentries when they are released
-
-- Manage dcache more efficiently
-===============================================================================
-Changes for patch v29
-
-- Added DEVFS_FL_AUTO_DEVNUM flag
-===============================================================================
-Changes for patch v30
-
-- No longer set unnecessary methods
-
-- Ported to kernel 2.1.99-pre3
-===============================================================================
-Changes for patch v31
-
-- Added PID display to <call_kerneld> debugging message
-
-- Added "diread" and "diwrite" options
-
-- Ported to kernel 2.1.102
-
-- Fixed persistence problem with permissions
-===============================================================================
-Changes for patch v32
-
-- Fixed devfs support in drivers/block/md.c
-===============================================================================
-Changes for patch v33
-
-- Support legacy device nodes
-
-- Fixed bug where recreated inodes were hidden
-
-- New IDE naming scheme: everything is under /dev/ide
-===============================================================================
-Changes for patch v34
-
-- Improved debugging in <get_vfs_inode>
-
-- Prevent duplicate calls to <devfs_mk_dir> in SCSI layer
-
-- No longer free old dentries in <devfs_mk_dir>
-
-- Free all dentries for a given entry when deleting inodes
-===============================================================================
-Changes for patch v35
-
-- Ported to kernel 2.1.105 (sound driver changes)
-===============================================================================
-Changes for patch v36
-
-- Fixed sound driver port
-===============================================================================
-Changes for patch v37
-
-- Minor documentation tweaks
-===============================================================================
-Changes for patch v38
-
-- More documentation tweaks
-
-- Fix for sound driver port
-
-- Removed ttyname-patch (grab libc 5.4.44 instead)
-
-- Ported to kernel 2.1.107-pre2 (loop driver fix)
-===============================================================================
-Changes for patch v39
-
-- Ported to kernel 2.1.107 (hd.c hunk broke due to spelling "fixes"). Sigh
-
-- Removed many #ifdef's, replaced with trickery in include/devfs_fs.h
-===============================================================================
-Changes for patch v40
-
-- Fix for sound driver port
-
-- Limit auto-device numbering to majors 128 to 239
-===============================================================================
-Changes for patch v41
-
-- Fixed inode times persistence problem
-===============================================================================
-Changes for patch v42
-
-- Ported to kernel 2.1.108 (drivers/scsi/hosts.c hunk broke)
-===============================================================================
-Changes for patch v43
-
-- Fixed spelling in <devfs_readlink> debug
-
-- Fixed bug in <devfs_setup> parsing "dilookup"
-
-- More #ifdef's removed
-
-- Supported Sparc keyboard (/dev/kbd)
-
-- Supported DSP56001 digital signal processor (/dev/dsp56k)
-
-- Supported Apple Desktop Bus (/dev/adb)
-
-- Supported Coda network file system (/dev/cfs*)
-===============================================================================
-Changes for patch v44
-
-- Fixed devfs inode leak when manually recreating inodes
-
-- Fixed permission persistence problem when recreating inodes
-===============================================================================
-Changes for patch v45
-
-- Ported to kernel 2.1.110
-===============================================================================
-Changes for patch v46
-
-- Ported to kernel 2.1.112-pre1
-
-- Removed harmless "unused variable" compiler warning
-
-- Fixed modes for manually recreated device nodes
-===============================================================================
-Changes for patch v47
-
-- Added NULL devfs inode warning in <devfs_read_inode>
-
-- Force all inode nlink values to 1
-===============================================================================
-Changes for patch v48
-
-- Added "dimknod" option
-
-- Set inode nlink to 0 when freeing dentries
-
-- Added support for virtual console capture devices (/dev/vcs*)
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Fixed modes for manually recreated symlinks
-===============================================================================
-Changes for patch v49
-
-- Ported to kernel 2.1.113
-===============================================================================
-Changes for patch v50
-
-- Fixed bugs in recreated directories and symlinks
-===============================================================================
-Changes for patch v51
-
-- Improved robustness of rc.devfs script
- Thanks to Roderich Schupp <rsch@experteam.de>
-
-- Fixed bugs in recreated device nodes
-
-- Fixed bug in currently unused <devfs_get_handle_from_inode>
-
-- Defined new <devfs_handle_t> type
-
-- Improved debugging when getting entries
-
-- Fixed bug where directories could be emptied
-
-- Ported to kernel 2.1.115
-===============================================================================
-Changes for patch v52
-
-- Replaced dummy .epoch inode with .devfsd character device
-
-- Modified rc.devfs to take account of above change
-
-- Removed spurious driver warning messages when CONFIG_DEVFS_FS=n
-
-- Implemented devfsd protocol revision 0
-===============================================================================
-Changes for patch v53
-
-- Ported to kernel 2.1.116 (kmod change broke hunk)
-
-- Updated Documentation/Configure.help
-
-- Test and tty pattern patch for rc.devfs script
- Thanks to Roderich Schupp <rsch@experteam.de>
-
-- Added soothing message to warning in <devfs_d_iput>
-===============================================================================
-Changes for patch v54
-
-- Ported to kernel 2.1.117
-
-- Fixed default permissions in sound driver
-
-- Added support for frame buffer devices (/dev/fb*)
-===============================================================================
-Changes for patch v55
-
-- Ported to kernel 2.1.119
-
-- Use GCC extensions for structure initialisations
-
-- Implemented async open notification
-
-- Incremented devfsd protocol revision to 1
-===============================================================================
-Changes for patch v56
-
-- Ported to kernel 2.1.120-pre3
-
-- Moved async open notification to end of <devfs_open>
-===============================================================================
-Changes for patch v57
-
-- Ported to kernel 2.1.121
-
-- Prepended "/dev/" to module load request
-
-- Renamed <call_kerneld> to <call_kmod>
-
-- Created sample modules.conf file
-===============================================================================
-Changes for patch v58
-
-- Fixed typo "AYSNC" -> "ASYNC"
-===============================================================================
-Changes for patch v59
-
-- Added open flag for files
-===============================================================================
-Changes for patch v60
-
-- Ported to kernel 2.1.123-pre2
-===============================================================================
-Changes for patch v61
-
-- Set i_blocks=0 and i_blksize=1024 in <devfs_read_inode>
-===============================================================================
-Changes for patch v62
-
-- Ported to kernel 2.1.123
-===============================================================================
-Changes for patch v63
-
-- Ported to kernel 2.1.124-pre2
-===============================================================================
-Changes for patch v64
-
-- Fixed Unix98 pty support
-
-- Increased buffer size in <get_partition_list> to avoid crash and
- burn
-===============================================================================
-Changes for patch v65
-
-- More Unix98 pty support fixes
-
-- Added test for empty <<name>> in <devfs_find_handle>
-
-- Renamed <generate_path> to <devfs_generate_path> and published
-
-- Created /dev/root symlink
- Thanks to Roderich Schupp <rsch@ExperTeam.de>
- with further modifications by me
-===============================================================================
-Changes for patch v66
-
-- Yet more Unix98 pty support fixes (now tested)
-
-- Created <devfs_get_fops>
-
-- Support media change checks when CONFIG_DEVFS_ONLY=y
-
-- Abolished Unix98-style PTY names for old PTY devices
-===============================================================================
-Changes for patch v67
-
-- Added inline declaration for dummy <devfs_generate_path>
-
-- Removed spurious "unable to register... in devfs" messages when
- CONFIG_DEVFS_FS=n
-
-- Fixed misc. devices when CONFIG_DEVFS_FS=n
-
-- Limit auto-device numbering to majors 144 to 239
-===============================================================================
-Changes for patch v68
-
-- Hide unopened virtual consoles from directory listings
-
-- Added support for video capture devices
-
-- Ported to kernel 2.1.125
-===============================================================================
-Changes for patch v69
-
-- Fix for CONFIG_VT=n
-===============================================================================
-Changes for patch v70
-
-- Added support for non-OSS/Free sound cards
-===============================================================================
-Changes for patch v71
-
-- Ported to kernel 2.1.126-pre2
-===============================================================================
-Changes for patch v72
-
-- #ifdef's for CONFIG_DEVFS_DISABLE_OLD_NAMES removed
-===============================================================================
-Changes for patch v73
-
-- CONFIG_DEVFS_DISABLE_OLD_NAMES replaced with "nocompat" boot option
-
-- CONFIG_DEVFS_BOOT_OPTIONS removed: boot options always available
-===============================================================================
-Changes for patch v74
-
-- Removed CONFIG_DEVFS_MOUNT and "mount" boot option and replaced with
- "nomount" boot option
-
-- Documentation updates
-
-- Updated sample modules.conf
-===============================================================================
-Changes for patch v75
-
-- Updated sample modules.conf
-
-- Remount devfs after initrd finishes
-
-- Ported to kernel 2.1.127
-
-- Added support for ISDN
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-===============================================================================
-Changes for patch v76
-
-- Updated an email address in ChangeLog
-
-- CONFIG_DEVFS_ONLY replaced with "only" boot option
-===============================================================================
-Changes for patch v77
-
-- Added DEVFS_FL_REMOVABLE flag
-
-- Check for disc change when listing directories with removable media
- devices
-
-- Use DEVFS_FL_REMOVABLE in sd.c
-
-- Ported to kernel 2.1.128
-===============================================================================
-Changes for patch v78
-
-- Only call <scan_dir_for_removable> on first call to <devfs_readdir>
-
-- Ported to kernel 2.1.129-pre5
-
-- ISDN support improvements
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-===============================================================================
-Changes for patch v79
-
-- Ported to kernel 2.1.130
-
-- Renamed miscdevice "apm" to "apm_bios" to be consistent with
- devices.txt
-===============================================================================
-Changes for patch v80
-
-- Ported to kernel 2.1.131
-
-- Updated <devfs_rmdir> for VFS change in 2.1.131
-===============================================================================
-Changes for patch v81
-
-- Fixed permissions on /dev/ptmx
-===============================================================================
-Changes for patch v82
-
-- Ported to kernel 2.1.132-pre4
-
-- Changed initial permissions on /dev/pts/*
-
-- Created <devfs_mk_compat>
-
-- Added "symlinks" boot option
-
-- Changed devfs_register_blkdev() back to register_blkdev() for IDE
-
-- Check for partitions on removable media in <devfs_lookup>
-===============================================================================
-Changes for patch v83
-
-- Fixed support for ramdisc when using string-based root FS name
-
-- Ported to kernel 2.2.0-pre1
-===============================================================================
-Changes for patch v84
-
-- Ported to kernel 2.2.0-pre7
-===============================================================================
-Changes for patch v85
-
-- Compile fixes for driver/sound/sound_common.c (non-module) and
- drivers/isdn/isdn_common.c
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-
-- Added support for registering regular files
-
-- Created <devfs_set_file_size>
-
-- Added /dev/cpu/mtrr as an alternative interface to /proc/mtrr
-
-- Update devfs inodes from entries if not changed through FS
-===============================================================================
-Changes for patch v86
-
-- Ported to kernel 2.2.0-pre9
-===============================================================================
-Changes for patch v87
-
-- Fixed bug when mounting non-devfs devices in a devfs
-===============================================================================
-Changes for patch v88
-
-- Fixed <devfs_fill_file> to only initialise temporary inodes
-
-- Trap for NULL fops in <devfs_register>
-
-- Return -ENODEV in <devfs_fill_file> for non-driver inodes
-
-- Fixed bug when unswapping non-devfs devices in a devfs
-===============================================================================
-Changes for patch v89
-
-- Switched to C data types in include/linux/devfs_fs.h
-
-- Switched from PATH_MAX to DEVFS_PATHLEN
-
-- Updated Documentation/filesystems/devfs/modules.conf to take account
- of reverse scanning (!) by modprobe
-
-- Ported to kernel 2.2.0
-===============================================================================
-Changes for patch v90
-
-- CONFIG_DEVFS_DISABLE_OLD_TTY_NAMES replaced with "nottycompat" boot
- option
-
-- CONFIG_DEVFS_TTY_COMPAT removed: existing "symlinks" boot option now
- controls this. This means you must have libc 5.4.44 or later, or a
- recent version of libc 6 if you use the "symlinks" option
-===============================================================================
-Changes for patch v91
-
-- Switch from <devfs_mk_symlink> to <devfs_mk_compat> in
- drivers/char/vc_screen.c to fix problems with Midnight Commander
-===============================================================================
-Changes for patch v92
-
-- Ported to kernel 2.2.2-pre5
-===============================================================================
-Changes for patch v93
-
-- Modified <sd_name> in drivers/scsi/sd.c to cope with devices that
- don't exist (which happens with new RAID autostart code printk()s)
-===============================================================================
-Changes for patch v94
-
-- Fixed bug in joystick driver: only first joystick was registered
-===============================================================================
-Changes for patch v95
-
-- Fixed another bug in joystick driver
-
-- Fixed <devfsd_read> to not overrun event buffer
-===============================================================================
-Changes for patch v96
-
-- Ported to kernel 2.2.5-2
-
-- Created <devfs_auto_unregister>
-
-- Fixed bugs: compatibility entries were not unregistered for:
- loop driver
- floppy driver
- RAMDISC driver
- IDE tape driver
- SCSI CD-ROM driver
- SCSI HDD driver
-===============================================================================
-Changes for patch v97
-
-- Fixed bugs: compatibility entries were not unregistered for:
- ALSA sound driver
- partitions in generic disc driver
-
-- Don't return unregistred entries in <devfs_find_handle>
-
-- Panic in <devfs_unregister> if entry unregistered
-
-- Don't panic in <devfs_auto_unregister> for duplicates
-===============================================================================
-Changes for patch v98
-
-- Don't unregister already unregistered entries in <unregister>
-
-- Register entry in <sd_detect>
-
-- Unregister entry in <sd_detach>
-
-- Changed to <devfs_*register_chrdev> in drivers/char/tty_io.c
-
-- Ported to kernel 2.2.7
-===============================================================================
-Changes for patch v99
-
-- Ported to kernel 2.2.8
-
-- Fixed bug in drivers/scsi/sd.c when >16 SCSI discs
-
-- Disable warning messages when unable to read partition table for
- removable media
-===============================================================================
-Changes for patch v100
-
-- Ported to kernel 2.3.1-pre5
-
-- Added "oops-on-panic" boot option
-
-- Improved debugging in <devfs_register> and <devfs_unregister>
-
-- Register entry in <sr_detect>
-
-- Unregister entry in <sr_detach>
-
-- Register entry in <sg_detect>
-
-- Unregister entry in <sg_detach>
-
-- Added support for ALSA drivers
-===============================================================================
-Changes for patch v101
-
-- Ported to kernel 2.3.2
-===============================================================================
-Changes for patch v102
-
-- Update serial driver to register PCMCIA entries
- Thanks to Roch-Alexandre Nomine-Beguin <roch@samarkand.infini.fr>
-
-- Updated an email address in ChangeLog
-
-- Hide virtual console capture entries from directory listings when
- corresponding console device is not open
-===============================================================================
-Changes for patch v103
-
-- Ported to kernel 2.3.3
-===============================================================================
-Changes for patch v104
-
-- Added documentation for some functions
-
-- Added "doc" target to fs/devfs/Makefile
-
-- Added "v4l" directory for video4linux devices
-
-- Replaced call to <devfs_unregister> in <sd_detach> with call to
- <devfs_register_partitions>
-
-- Moved registration for sr and sg drivers from detect() to attach()
- methods
-
-- Register entries in <st_attach> and unregister in <st_detach>
-
-- Work around IDE driver treating CD-ROM as gendisk
-
-- Use <sed> instead of <tr> in rc.devfs
-
-- Updated ToDo list
-
-- Removed "oops-on-panic" boot option: now always Oops
-===============================================================================
-Changes for patch v105
-
-- Unregister SCSI host from <scsi_host_no_list> in <scsi_unregister>
- Thanks to Zoltán Böszörményi <zboszor@mail.externet.hu>
-
-- Don't save /dev/log in rc.devfs
-
-- Ported to kernel 2.3.4-pre1
-===============================================================================
-Changes for patch v106
-
-- Fixed silly typo in drivers/scsi/st.c
-
-- Improved debugging in <devfs_register>
-===============================================================================
-Changes for patch v107
-
-- Added "diunlink" and "nokmod" boot options
-
-- Removed superfluous warning message in <devfs_d_iput>
-===============================================================================
-Changes for patch v108
-
-- Remove entries when unloading sound module
-===============================================================================
-Changes for patch v109
-
-- Ported to kernel 2.3.6-pre2
-===============================================================================
-Changes for patch v110
-
-- Took account of change to <d_alloc_root>
-===============================================================================
-Changes for patch v111
-
-- Created separate event queue for each mounted devfs
-
-- Removed <devfs_invalidate_dcache>
-
-- Created new ioctl()s for devfsd
-
-- Incremented devfsd protocol revision to 3
-
-- Fixed bug when re-creating directories: contents were lost
-
-- Block access to inodes until devfsd updates permissions
-===============================================================================
-Changes for patch v112
-
-- Modified patch so it applies against 2.3.5 and 2.3.6
-
-- Updated an email address in ChangeLog
-
-- Do not automatically change ownership/protection of /dev/tty<n>
-
-- Updated sample modules.conf
-
-- Switched to sending process uid/gid to devfsd
-
-- Renamed <call_kmod> to <try_modload>
-
-- Added DEVFSD_NOTIFY_LOOKUP event
-
-- Added DEVFSD_NOTIFY_CHANGE event
-
-- Added DEVFSD_NOTIFY_CREATE event
-
-- Incremented devfsd protocol revision to 4
-
-- Moved kernel-specific stuff to include/linux/devfs_fs_kernel.h
-===============================================================================
-Changes for patch v113
-
-- Ported to kernel 2.3.9
-
-- Restricted permissions on some block devices
-===============================================================================
-Changes for patch v114
-
-- Added support for /dev/netlink
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Return EISDIR rather than EINVAL for read(2) on directories
-
-- Ported to kernel 2.3.10
-===============================================================================
-Changes for patch v115
-
-- Added support for all remaining character devices
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Cleaned up netlink support
-===============================================================================
-Changes for patch v116
-
-- Added support for /dev/parport%d
- Thanks to Tim Waugh <tim@cyberelk.demon.co.uk>
-
-- Fixed parallel port ATAPI tape driver
-
-- Fixed Atari SLM laser printer driver
-===============================================================================
-Changes for patch v117
-
-- Added support for COSA card
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Fixed drivers/char/ppdev.c: missing #include <linux/init.h>
-
-- Fixed drivers/char/ftape/zftape/zftape-init.c
- Thanks to Vladimir Popov <mashgrad@usa.net>
-===============================================================================
-Changes for patch v118
-
-- Ported to kernel 2.3.15-pre3
-
-- Fixed bug in loop driver
-
-- Unregister /dev/lp%d entries in drivers/char/lp.c
- Thanks to Maciej W. Rozycki <macro@ds2.pg.gda.pl>
-===============================================================================
-Changes for patch v119
-
-- Ported to kernel 2.3.16
-===============================================================================
-Changes for patch v120
-
-- Fixed bug in drivers/scsi/scsi.c
-
-- Added /dev/ppp
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Ported to kernel 2.3.17
-===============================================================================
-Changes for patch v121
-
-- Fixed bug in drivers/block/loop.c
-
-- Ported to kernel 2.3.18
-===============================================================================
-Changes for patch v122
-
-- Ported to kernel 2.3.19
-===============================================================================
-Changes for patch v123
-
-- Ported to kernel 2.3.20
-===============================================================================
-Changes for patch v124
-
-- Ported to kernel 2.3.21
-===============================================================================
-Changes for patch v125
-
-- Created <devfs_get_info>, <devfs_set_info>,
- <devfs_get_first_child> and <devfs_get_next_sibling>
- Added <<dir>> parameter to <devfs_register>, <devfs_mk_compat>,
- <devfs_mk_dir> and <devfs_find_handle>
- Work sponsored by SGI
-
-- Fixed apparent bug in COSA driver
-
-- Re-instated "scsihosts=" boot option
-===============================================================================
-Changes for patch v126
-
-- Always create /dev/pts if CONFIG_UNIX98_PTYS=y
-
-- Fixed call to <devfs_mk_dir> in drivers/block/ide-disk.c
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Allow multiple unregistrations
-
-- Created /dev/scsi hierarchy
- Work sponsored by SGI
-===============================================================================
-Changes for patch v127
-
-Work sponsored by SGI
-
-- No longer disable devpts if devfs enabled (caveat emptor)
-
-- Added flags array to struct gendisk and removed code from
- drivers/scsi/sd.c
-
-- Created /dev/discs hierarchy
-===============================================================================
-Changes for patch v128
-
-Work sponsored by SGI
-
-- Created /dev/cdroms hierarchy
-===============================================================================
-Changes for patch v129
-
-Work sponsored by SGI
-
-- Removed compatibility entries for sound devices
-
-- Removed compatibility entries for printer devices
-
-- Removed compatibility entries for video4linux devices
-
-- Removed compatibility entries for parallel port devices
-
-- Removed compatibility entries for frame buffer devices
-===============================================================================
-Changes for patch v130
-
-Work sponsored by SGI
-
-- Added major and minor number to devfsd protocol
-
-- Incremented devfsd protocol revision to 5
-
-- Removed compatibility entries for SoundBlaster CD-ROMs
-
-- Removed compatibility entries for netlink devices
-
-- Removed compatibility entries for SCSI generic devices
-
-- Removed compatibility entries for SCSI tape devices
-===============================================================================
-Changes for patch v131
-
-Work sponsored by SGI
-
-- Support info pointer for all devfs entry types
-
-- Added <<info>> parameter to <devfs_mk_dir> and <devfs_mk_symlink>
-
-- Removed /dev/st hierarchy
-
-- Removed /dev/sg hierarchy
-
-- Removed compatibility entries for loop devices
-
-- Removed compatibility entries for IDE tape devices
-
-- Removed compatibility entries for SCSI CD-ROMs
-
-- Removed /dev/sr hierarchy
-===============================================================================
-Changes for patch v132
-
-Work sponsored by SGI
-
-- Removed compatibility entries for floppy devices
-
-- Removed compatibility entries for RAMDISCs
-
-- Removed compatibility entries for meta-devices
-
-- Removed compatibility entries for SCSI discs
-
-- Created <devfs_make_root>
-
-- Removed /dev/sd hierarchy
-
-- Support "../" when searching devfs namespace
-
-- Created /dev/ide/host* hierarchy
-
-- Supported IDE hard discs in /dev/ide/host* hierarchy
-
-- Removed compatibility entries for IDE discs
-
-- Removed /dev/ide/hd hierarchy
-
-- Supported IDE CD-ROMs in /dev/ide/host* hierarchy
-
-- Removed compatibility entries for IDE CD-ROMs
-
-- Removed /dev/ide/cd hierarchy
-===============================================================================
-Changes for patch v133
-
-Work sponsored by SGI
-
-- Created <devfs_get_unregister_slave>
-
-- Fixed bug in fs/partitions/check.c when rescanning
-===============================================================================
-Changes for patch v134
-
-Work sponsored by SGI
-
-- Removed /dev/sd, /dev/sr, /dev/st and /dev/sg directories
-
-- Removed /dev/ide/hd directory
-
-- Exported <devfs_get_parent>
-
-- Created <devfs_register_tape> and /dev/tapes hierarchy
-
-- Removed /dev/ide/mt hierarchy
-
-- Removed /dev/ide/fd hierarchy
-
-- Ported to kernel 2.3.25
-===============================================================================
-Changes for patch v135
-
-Work sponsored by SGI
-
-- Removed compatibility entries for virtual console capture devices
-
-- Removed unused <devfs_set_symlink_destination>
-
-- Removed compatibility entries for serial devices
-
-- Removed compatibility entries for console devices
-
-- Do not hide entries from devfsd or children
-
-- Removed DEVFS_FL_TTY_COMPAT flag
-
-- Removed "nottycompat" boot option
-
-- Removed <devfs_mk_compat>
-===============================================================================
-Changes for patch v136
-
-Work sponsored by SGI
-
-- Moved BSD pty devices to /dev/pty
-
-- Added DEVFS_FL_WAIT flag
-===============================================================================
-Changes for patch v137
-
-Work sponsored by SGI
-
-- Really fixed bug in fs/partitions/check.c when rescanning
-
-- Support new "disc" naming scheme in <get_removable_partition>
-
-- Allow NULL fops in <devfs_register>
-
-- Removed redundant name functions in SCSI disc and IDE drivers
-===============================================================================
-Changes for patch v138
-
-Work sponsored by SGI
-
-- Fixed old bugs in drivers/block/paride/pt.c, drivers/char/tpqic02.c,
- drivers/net/wan/cosa.c and drivers/scsi/scsi.c
- Thanks to Sergey Kubushin <ksi@ksi-linux.com>
-
-- Fall back to major table if NULL fops given to <devfs_register>
-===============================================================================
-Changes for patch v139
-
-Work sponsored by SGI
-
-- Corrected and moved <get_blkfops> and <get_chrfops> declarations
- from arch/alpha/kernel/osf_sys.c to include/linux/fs.h
-
-- Removed name function from struct gendisk
-
-- Updated devfs FAQ
-===============================================================================
-Changes for patch v140
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.27
-===============================================================================
-Changes for patch v141
-
-Work sponsored by SGI
-
-- Bug fix in arch/m68k/atari/joystick.c
-
-- Moved ISDN and capi devices to /dev/isdn
-===============================================================================
-Changes for patch v142
-
-Work sponsored by SGI
-
-- Bug fix in drivers/block/ide-probe.c (patch confusion)
-===============================================================================
-Changes for patch v143
-
-Work sponsored by SGI
-
-- Bug fix in drivers/block/blkpg.c:partition_name()
-===============================================================================
-Changes for patch v144
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.29
-
-- Removed calls to <devfs_register> from cdu31a, cm206, mcd and mcdx
- CD-ROM drivers: generic driver handles this now
-
-- Moved joystick devices to /dev/joysticks
-===============================================================================
-Changes for patch v145
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.30-pre3
-
-- Register whole-disc entry even for invalid partition tables
-
-- Fixed bug in mounting root FS when initrd enabled
-
-- Fixed device entry leak with IDE CD-ROMs
-
-- Fixed compile problem with drivers/isdn/isdn_common.c
-
-- Moved COSA devices to /dev/cosa
-
-- Support fifos when unregistering
-
-- Created <devfs_register_series> and used in many drivers
-
-- Moved Coda devices to /dev/coda
-
-- Moved parallel port IDE tapes to /dev/pt
-
-- Moved parallel port IDE generic devices to /dev/pg
-===============================================================================
-Changes for patch v146
-
-Work sponsored by SGI
-
-- Removed obsolete DEVFS_FL_COMPAT and DEVFS_FL_TOLERANT flags
-
-- Fixed compile problem with fs/coda/psdev.c
-
-- Reinstate change to <devfs_register_blkdev> in
- drivers/block/ide-probe.c now that fs/isofs/inode.c is fixed
-
-- Switched to <devfs_register_blkdev> in drivers/block/floppy.c,
- drivers/scsi/sr.c and drivers/block/md.c
-
-- Moved DAC960 devices to /dev/dac960
-===============================================================================
-Changes for patch v147
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.32-pre4
-===============================================================================
-Changes for patch v148
-
-Work sponsored by SGI
-
-- Removed kmod support: use devfsd instead
-
-- Moved miscellaneous character devices to /dev/misc
-===============================================================================
-Changes for patch v149
-
-Work sponsored by SGI
-
-- Ensure include/linux/joystick.h is OK for user-space
-
-- Improved debugging in <get_vfs_inode>
-
-- Ensure dentries created by devfsd will be cleaned up
-===============================================================================
-Changes for patch v150
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.34
-===============================================================================
-Changes for patch v151
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.35-pre1
-
-- Created <devfs_get_name>
-===============================================================================
-Changes for patch v152
-
-Work sponsored by SGI
-
-- Updated sample modules.conf
-
-- Ported to kernel 2.3.36-pre1
-===============================================================================
-Changes for patch v153
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.42
-
-- Removed <devfs_fill_file>
-===============================================================================
-Changes for patch v154
-
-Work sponsored by SGI
-
-- Took account of device number changes for /dev/fb*
-===============================================================================
-Changes for patch v155
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.43-pre8
-
-- Moved /dev/tty0 to /dev/vc/0
-
-- Moved sequence number formatting from <_tty_make_name> to drivers
-===============================================================================
-Changes for patch v156
-
-Work sponsored by SGI
-
-- Fixed breakage in drivers/scsi/sd.c due to recent SCSI changes
-===============================================================================
-Changes for patch v157
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.45
-===============================================================================
-Changes for patch v158
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.46-pre2
-===============================================================================
-Changes for patch v159
-
-Work sponsored by SGI
-
-- Fixed drivers/block/md.c
- Thanks to Mike Galbraith <mikeg@weiden.de>
-
-- Documentation fixes
-
-- Moved device registration from <lp_init> to <lp_register>
- Thanks to Tim Waugh <twaugh@redhat.com>
-===============================================================================
-Changes for patch v160
-
-Work sponsored by SGI
-
-- Fixed drivers/char/joystick/joystick.c
- Thanks to Vojtech Pavlik <vojtech@suse.cz>
-
-- Documentation updates
-
-- Fixed arch/i386/kernel/mtrr.c if procfs and devfs not enabled
-
-- Fixed drivers/char/stallion.c
-===============================================================================
-Changes for patch v161
-
-Work sponsored by SGI
-
-- Remove /dev/ide when ide-mod is unloaded
-
-- Fixed bug in drivers/block/ide-probe.c when secondary but no primary
-
-- Added DEVFS_FL_NO_PERSISTENCE flag
-
-- Used new DEVFS_FL_NO_PERSISTENCE flag for Unix98 pty slaves
-
-- Removed unnecessary call to <update_devfs_inode_from_entry> in
- <devfs_readdir>
-
-- Only set auto-ownership for /dev/pty/s*
-===============================================================================
-Changes for patch v162
-
-Work sponsored by SGI
-
-- Set inode->i_size to correct size for symlinks
- Thanks to Jeremy Fitzhardinge <jeremy@goop.org>
-
-- Only give lookup() method to directories to comply with new VFS
- assumptions
-
-- Remove unnecessary tests in symlink methods
-
-- Don't kill existing block ops in <devfs_read_inode>
-
-- Restore auto-ownership for /dev/pty/m*
-===============================================================================
-Changes for patch v163
-
-Work sponsored by SGI
-
-- Don't create missing directories in <devfs_find_handle>
-
-- Removed Documentation/filesystems/devfs/mk-devlinks
-
-- Updated Documentation/filesystems/devfs/README
-===============================================================================
-Changes for patch v164
-
-Work sponsored by SGI
-
-- Fixed CONFIG_DEVFS breakage in drivers/char/serial.c introduced in
- linux-2.3.99-pre6-7
-===============================================================================
-Changes for patch v165
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.99-pre6
-===============================================================================
-Changes for patch v166
-
-Work sponsored by SGI
-
-- Added CONFIG_DEVFS_MOUNT
-===============================================================================
-Changes for patch v167
-
-Work sponsored by SGI
-
-- Updated Documentation/filesystems/devfs/README
-
-- Updated sample modules.conf
-===============================================================================
-Changes for patch v168
-
-Work sponsored by SGI
-
-- Disabled multi-mount capability (use VFS bindings instead)
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v169
-
-Work sponsored by SGI
-
-- Removed multi-mount code
-
-- Removed compatibility macros: VFS has changed too much
-===============================================================================
-Changes for patch v170
-
-Work sponsored by SGI
-
-- Updated README from master HTML file
-
-- Merged devfs inode into devfs entry
-===============================================================================
-Changes for patch v171
-
-Work sponsored by SGI
-
-- Updated sample modules.conf
-
-- Removed dead code in <devfs_register> which used to call
- <free_dentries>
-
-- Ported to kernel 2.4.0-test2-pre3
-===============================================================================
-Changes for patch v172
-
-Work sponsored by SGI
-
-- Changed interface to <devfs_register>
-
-- Changed interface to <devfs_register_series>
-===============================================================================
-Changes for patch v173
-
-Work sponsored by SGI
-
-- Simplified interface to <devfs_mk_symlink>
-
-- Simplified interface to <devfs_mk_dir>
-
-- Simplified interface to <devfs_find_handle>
-===============================================================================
-Changes for patch v174
-
-Work sponsored by SGI
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v175
-
-Work sponsored by SGI
-
-- DocBook update for fs/devfs/base.c
- Thanks to Tim Waugh <twaugh@redhat.com>
-
-- Removed stale fs/tunnel.c (was never used or completed)
-===============================================================================
-Changes for patch v176
-
-Work sponsored by SGI
-
-- Updated ToDo list
-
-- Removed sample modules.conf: now distributed with devfsd
-
-- Updated README from master HTML file
-
-- Ported to kernel 2.4.0-test3-pre4 (which had devfs-patch-v174)
-===============================================================================
-Changes for patch v177
-
-- Updated README from master HTML file
-
-- Documentation cleanups
-
-- Ensure <devfs_generate_path> terminates string for root entry
- Thanks to Tim Jansen <tim@tjansen.de>
-
-- Exported <devfs_get_name> to modules
-
-- Make <devfs_mk_symlink> send events to devfsd
-
-- Cleaned up option processing in <devfs_setup>
-
-- Fixed bugs in handling symlinks: could leak or cause Oops
-
-- Cleaned up directory handling by separating fops
- Thanks to Alexander Viro <viro@parcelfarce.linux.theplanet.co.uk>
-===============================================================================
-Changes for patch v178
-
-- Fixed handling of inverted options in <devfs_setup>
-===============================================================================
-Changes for patch v179
-
-- Adjusted <try_modload> to account for <devfs_generate_path> fix
-===============================================================================
-Changes for patch v180
-
-- Fixed !CONFIG_DEVFS_FS stub declaration of <devfs_get_info>
-===============================================================================
-Changes for patch v181
-
-- Answered question posed by Al Viro and removed his comments from <devfs_open>
-
-- Moved setting of registered flag after other fields are changed
-
-- Fixed race between <devfsd_close> and <devfsd_notify_one>
-
-- Global VFS changes added bogus BKL to devfsd_close(): removed
-
-- Widened locking in <devfs_readlink> and <devfs_follow_link>
-
-- Replaced <devfsd_read> stack usage with <devfsd_ioctl> kmalloc
-
-- Simplified locking in <devfsd_ioctl> and fixed memory leak
-===============================================================================
-Changes for patch v182
-
-- Created <devfs_*alloc_major> and <devfs_*alloc_devnum>
-
-- Removed broken devnum allocation and use <devfs_alloc_devnum>
-
-- Fixed old devnum leak by calling new <devfs_dealloc_devnum>
-
-- Created <devfs_*alloc_unique_number>
-
-- Fixed number leak for /dev/cdroms/cdrom%d
-
-- Fixed number leak for /dev/discs/disc%d
-===============================================================================
-Changes for patch v183
-
-- Fixed bug in <devfs_setup> which could hang boot process
-===============================================================================
-Changes for patch v184
-
-- Documentation typo fix for fs/devfs/util.c
-
-- Fixed drivers/char/stallion.c for devfs
-
-- Added DEVFSD_NOTIFY_DELETE event
-
-- Updated README from master HTML file
-
-- Removed #include <asm/segment.h> from fs/devfs/base.c
-===============================================================================
-Changes for patch v185
-
-- Made <block_semaphore> and <char_semaphore> in fs/devfs/util.c
- private
-
-- Fixed inode table races by removing it and using inode->u.generic_ip
- instead
-
-- Moved <devfs_read_inode> into <get_vfs_inode>
-
-- Moved <devfs_write_inode> into <devfs_notify_change>
-===============================================================================
-Changes for patch v186
-
-- Fixed race in <devfs_do_symlink> for uni-processor
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v187
-
-- Fixed drivers/char/stallion.c for devfs
-
-- Fixed drivers/char/rocket.c for devfs
-
-- Fixed bug in <devfs_alloc_unique_number>: limited to 128 numbers
-===============================================================================
-Changes for patch v188
-
-- Updated major masks in fs/devfs/util.c up to Linus' "no new majors"
- proclamation. Block: were 126 now 122 free, char: were 26 now 19 free
-
-- Updated README from master HTML file
-
-- Removed remnant of multi-mount support in <devfs_mknod>
-
-- Removed unused DEVFS_FL_SHOW_UNREG flag
-===============================================================================
-Changes for patch v189
-
-- Removed nlink field from struct devfs_inode
-
-- Removed auto-ownership for /dev/pty/* (BSD ptys) and used
- DEVFS_FL_CURRENT_OWNER|DEVFS_FL_NO_PERSISTENCE for /dev/pty/s* (just
- like Unix98 pty slaves) and made /dev/pty/m* rw-rw-rw- access
-===============================================================================
-Changes for patch v190
-
-- Updated README from master HTML file
-
-- Replaced BKL with global rwsem to protect symlink data (quick and
- dirty hack)
-===============================================================================
-Changes for patch v191
-
-- Replaced global rwsem for symlink with per-link refcount
-===============================================================================
-Changes for patch v192
-
-- Removed unnecessary #ifdef CONFIG_DEVFS_FS from arch/i386/kernel/mtrr.c
-
-- Ported to kernel 2.4.10-pre11
-
-- Set inode->i_mapping->a_ops for block nodes in <get_vfs_inode>
-===============================================================================
-Changes for patch v193
-
-- Went back to global rwsem for symlinks (refcount scheme no good)
-===============================================================================
-Changes for patch v194
-
-- Fixed overrun in <devfs_link> by removing function (not needed)
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v195
-
-- Fixed buffer underrun in <try_modload>
-
-- Moved down_read() from <search_for_entry_in_dir> to <find_entry>
-===============================================================================
-Changes for patch v196
-
-- Fixed race in <devfsd_ioctl> when setting event mask
- Thanks to Kari Hurtta <hurtta@leija.mh.fmi.fi>
-
-- Avoid deadlock in <devfs_follow_link> by using temporary buffer
-===============================================================================
-Changes for patch v197
-
-- First release of new locking code for devfs core (v1.0)
-
-- Fixed bug in drivers/cdrom/cdrom.c
-===============================================================================
-Changes for patch v198
-
-- Discard temporary buffer, now use "%s" for dentry names
-
-- Don't generate path in <try_modload>: use fake entry instead
-
-- Use "existing" directory in <_devfs_make_parent_for_leaf>
-
-- Use slab cache rather than fixed buffer for devfsd events
-===============================================================================
-Changes for patch v199
-
-- Removed obsolete usage of DEVFS_FL_NO_PERSISTENCE
-
-- Send DEVFSD_NOTIFY_REGISTERED events in <devfs_mk_dir>
-
-- Fixed locking bug in <devfs_d_revalidate_wait> due to typo
-
-- Do not send CREATE, CHANGE, ASYNC_OPEN or DELETE events from devfsd
- or children
-===============================================================================
-Changes for patch v200
-
-- Ported to kernel 2.5.1-pre2
-===============================================================================
-Changes for patch v201
-
-- Fixed bug in <devfsd_read>: was dereferencing freed pointer
-===============================================================================
-Changes for patch v202
-
-- Fixed bug in <devfsd_close>: was dereferencing freed pointer
-
-- Added process group check for devfsd privileges
-===============================================================================
-Changes for patch v203
-
-- Use SLAB_ATOMIC in <devfsd_notify_de> from <devfs_d_delete>
-===============================================================================
-Changes for patch v204
-
-- Removed long obsolete rc.devfs
-
-- Return old entry in <devfs_mk_dir> for 2.4.x kernels
-
-- Updated README from master HTML file
-
-- Increment refcount on module in <check_disc_changed>
-
-- Created <devfs_get_handle> and exported <devfs_put>
-
-- Increment refcount on module in <devfs_get_ops>
-
-- Created <devfs_put_ops> and used where needed to fix races
-
-- Added clarifying comments in response to preliminary EMC code review
-
-- Added poisoning to <devfs_put>
-
-- Improved debugging messages
-
-- Fixed unregister bugs in drivers/md/lvm-fs.c
-===============================================================================
-Changes for patch v205
-
-- Corrected (made useful) debugging message in <unregister>
-
-- Moved <kmem_cache_create> in <mount_devfs_fs> to <init_devfs_fs>
-
-- Fixed drivers/md/lvm-fs.c to create "lvm" entry
-
-- Added magic number to guard against scribbling drivers
-
-- Only return old entry in <devfs_mk_dir> if a directory
-
-- Defined macros for error and debug messages
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v206
-
-- Added support for multiple Compaq cpqarray controllers
-
-- Fixed (rare, old) race in <devfs_lookup>
-===============================================================================
-Changes for patch v207
-
-- Fixed deadlock bug in <devfs_d_revalidate_wait>
-
-- Tag VFS deletable in <devfs_mk_symlink> if handle ignored
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v208
-
-- Added KERN_* to remaining messages
-
-- Cleaned up declaration of <stat_read>
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v209
-
-- Updated README from master HTML file
-
-- Removed silently introduced calls to lock_kernel() and
- unlock_kernel() due to recent VFS locking changes. BKL isn't
- required in devfs
-
-- Changed <devfs_rmdir> to allow later additions if not yet empty
-
-- Added calls to <devfs_register_partitions> in drivers/block/blkpc.c
- <add_partition> and <del_partition>
-
-- Fixed bug in <devfs_alloc_unique_number>: was clearing beyond
- bitfield
-
-- Fixed bitfield data type for <devfs_*alloc_devnum>
-
-- Made major bitfield type and initialiser 64 bit safe
-===============================================================================
-Changes for patch v210
-
-- Updated fs/devfs/util.c to fix shift warning on 64 bit machines
- Thanks to Anton Blanchard <anton@samba.org>
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v211
-
-- Do not put miscellaneous character devices in /dev/misc if they
- specify their own directory (i.e. contain a '/' character)
-
-- Copied macro for error messages from fs/devfs/base.c to
- fs/devfs/util.c and made use of this macro
-
-- Removed 2.4.x compatibility code from fs/devfs/base.c
-===============================================================================
-Changes for patch v212
-
-- Added BKL to <devfs_open> because drivers still need it
-===============================================================================
-Changes for patch v213
-
-- Protected <scan_dir_for_removable> and <get_removable_partition>
- from changing directory contents
-===============================================================================
-Changes for patch v214
-
-- Switched to ISO C structure field initialisers
-
-- Switch to set_current_state() and move before add_wait_queue()
-
-- Updated README from master HTML file
-
-- Fixed devfs entry leak in <devfs_readdir> when *readdir fails
-===============================================================================
-Changes for patch v215
-
-- Created <devfs_find_and_unregister>
-
-- Switched many functions from <devfs_find_handle> to
- <devfs_find_and_unregister>
-
-- Switched many functions from <devfs_find_handle> to <devfs_get_handle>
-===============================================================================
-Changes for patch v216
-
-- Switched arch/ia64/sn/io/hcl.c from <devfs_find_handle> to
- <devfs_get_handle>
-
-- Removed deprecated <devfs_find_handle>
-===============================================================================
-Changes for patch v217
-
-- Exported <devfs_find_and_unregister> and <devfs_only> to modules
-
-- Updated README from master HTML file
-
-- Fixed module unload race in <devfs_open>
-===============================================================================
-Changes for patch v218
-
-- Removed DEVFS_FL_AUTO_OWNER flag
-
-- Switched lingering structure field initialiser to ISO C
-
-- Added locking when setting/clearing flags
-
-- Documentation fix in fs/devfs/util.c