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Diffstat (limited to 'Documentation/filesystems/devfs/ChangeLog')
| -rw-r--r-- | Documentation/filesystems/devfs/ChangeLog | 1977 |
1 files changed, 1977 insertions, 0 deletions
diff --git a/Documentation/filesystems/devfs/ChangeLog b/Documentation/filesystems/devfs/ChangeLog new file mode 100644 index 00000000000..e5aba5246d7 --- /dev/null +++ b/Documentation/filesystems/devfs/ChangeLog @@ -0,0 +1,1977 @@ +/* -*- 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 |