cifs: create a new Documentation/ directory and move docfiles into it

Currently, we have a number of documentation files that live under
fs/cifs/. Generally, these don't get picked up by distro packagers,
since they're in a non-standard location. Move them to a new spot
under Documentation/ instead.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

4 files changed, 0 insertions, 2002 deletions

diff --git a/fs/cifs/AUTHORS b/fs/cifs/AUTHORS
deleted file mode 100644
index ea940b1db77b..000000000000
--- a/fs/cifs/AUTHORS
+++ /dev/null
@@ -1,55 +0,0 @@
-Original Author
-===============
-Steve French (sfrench@samba.org)
-
-The author wishes to express his appreciation and thanks to:
-Andrew Tridgell (Samba team) for his early suggestions about smb/cifs VFS
-improvements. Thanks to IBM for allowing me time and test resources to pursue
-this project, to Jim McDonough from IBM (and the Samba Team) for his help, to
-the IBM Linux JFS team for explaining many esoteric Linux filesystem features.
-Jeremy Allison of the Samba team has done invaluable work in adding the server
-side of the original CIFS Unix extensions and reviewing and implementing
-portions of the newer CIFS POSIX extensions into the Samba 3 file server. Thank
-Dave Boutcher of IBM Rochester (author of the OS/400 smb/cifs filesystem client)
-for proving years ago that very good smb/cifs clients could be done on Unix-like
-operating systems.  Volker Lendecke, Andrew Tridgell, Urban Widmark, John 
-Newbigin and others for their work on the Linux smbfs module.  Thanks to
-the other members of the Storage Network Industry Association CIFS Technical
-Workgroup for their work specifying this highly complex protocol and finally
-thanks to the Samba team for their technical advice and encouragement.
-
-Patch Contributors
-------------------
-Zwane Mwaikambo
-Andi Kleen
-Amrut Joshi
-Shobhit Dayal
-Sergey Vlasov
-Richard Hughes
-Yury Umanets
-Mark Hamzy (for some of the early cifs IPv6 work)
-Domen Puncer
-Jesper Juhl (in particular for lots of whitespace/formatting cleanup)
-Vince Negri and Dave Stahl (for finding an important caching bug)
-Adrian Bunk (kcalloc cleanups)
-Miklos Szeredi 
-Kazeon team for various fixes especially for 2.4 version.
-Asser Ferno (Change Notify support)
-Shaggy (Dave Kleikamp) for innumerable small fs suggestions and some good cleanup
-Gunter Kukkukk (testing and suggestions for support of old servers)
-Igor Mammedov (DFS support)
-Jeff Layton (many, many fixes, as well as great work on the cifs Kerberos code)
-
-Test case and Bug Report contributors
--------------------------------------
-Thanks to those in the community who have submitted detailed bug reports
-and debug of problems they have found:  Jochen Dolze, David Blaine,
-Rene Scharfe, Martin Josefsson, Alexander Wild, Anthony Liguori,
-Lars Muller, Urban Widmark, Massimiliano Ferrero, Howard Owen,
-Olaf Kirch, Kieron Briggs, Nick Millington and others. Also special
-mention to the Stanford Checker (SWAT) which pointed out many minor
-bugs in error paths.  Valuable suggestions also have come from Al Viro
-and Dave Miller.
-
-And thanks to the IBM LTC and Power test teams and SuSE testers for
-finding multiple bugs during excellent stress test runs.
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
deleted file mode 100644
index bc0025cdd1c9..000000000000
--- a/fs/cifs/CHANGES
+++ /dev/null
@@ -1,1065 +0,0 @@
-Version 1.62
-------------
-Add sockopt=TCP_NODELAY mount option. EA (xattr) routines hardened
-to more strictly handle corrupt frames.
-
-Version 1.61
-------------
-Fix append problem to Samba servers (files opened with O_APPEND could
-have duplicated data). Fix oops in cifs_lookup. Workaround problem
-mounting to OS/400 Netserve. Fix oops in cifs_get_tcp_session.
-Disable use of server inode numbers when server only
-partially supports them (e.g. for one server querying inode numbers on
-FindFirst fails but QPathInfo queries works). Fix oops with dfs in 
-cifs_put_smb_ses. Fix mmap to work on directio mounts (needed
-for OpenOffice when on forcedirectio mount e.g.)
-
-Version 1.60
--------------
-Fix memory leak in reconnect.  Fix oops in DFS mount error path.
-Set s_maxbytes to smaller (the max that vfs can handle) so that
-sendfile will now work over cifs mounts again.  Add noforcegid
-and noforceuid mount parameters. Fix small mem leak when using
-ntlmv2. Fix 2nd mount to same server but with different port to
-be allowed (rather than reusing the 1st port) - only when the
-user explicitly overrides the port on the 2nd mount.
-
-Version 1.59
-------------
-Client uses server inode numbers (which are persistent) rather than
-client generated ones by default (mount option "serverino" turned
-on by default if server supports it).  Add forceuid and forcegid
-mount options (so that when negotiating unix extensions specifying
-which uid mounted does not immediately force the server's reported
-uids to be overridden).  Add support for scope mount parm. Improve
-hard link detection to use same inode for both.  Do not set
-read-only dos attribute on directories (for chmod) since Windows
-explorer special cases this attribute bit for directories for
-a different purpose.
-
-Version 1.58
-------------
-Guard against buffer overruns in various UCS-2 to UTF-8 string conversions
-when the UTF-8 string is composed of unusually long (more than 4 byte) converted
-characters. Add support for mounting root of a share which redirects immediately
-to DFS target. Convert string conversion functions from Unicode to more
-accurately mark string length before allocating memory (which may help the
-rare cases where a UTF-8 string is much larger than the UCS2 string that
-we converted from).  Fix endianness of the vcnum field used during
-session setup to distinguish multiple mounts to same server from different
-userids. Raw NTLMSSP fixed (it requires /proc/fs/cifs/experimental
-flag to be set to 2, and mount must enable krb5 to turn on extended security).
-Performance of file create to Samba improved (posix create on lookup
-removes 1 of 2 network requests sent on file create)
- 
-Version 1.57
-------------
-Improve support for multiple security contexts to the same server. We
-used to use the same "vcnumber" for all connections which could cause
-the server to treat subsequent connections, especially those that
-are authenticated as guest, as reconnections, invalidating the earlier
-user's smb session.  This fix allows cifs to mount multiple times to the
-same server with different userids without risking invalidating earlier
-established security contexts.  fsync now sends SMB Flush operation
-to better ensure that we wait for server to write all of the data to
-server disk (not just write it over the network).  Add new mount
-parameter to allow user to disable sending the (slow) SMB flush on
-fsync if desired (fsync still flushes all cached write data to the server).
-Posix file open support added (turned off after one attempt if server
-fails to support it properly, as with Samba server versions prior to 3.3.2)
-Fix "redzone overwritten" bug in cifs_put_tcon (CIFSTcon may allocate too
-little memory for the "nativeFileSystem" field returned by the server
-during mount).  Endian convert inode numbers if necessary (makes it easier
-to compare inode numbers on network files from big endian systems). 
-
-Version 1.56
-------------
-Add "forcemandatorylock" mount option to allow user to use mandatory
-rather than posix (advisory) byte range locks, even though server would
-support posix byte range locks.  Fix query of root inode when prefixpath
-specified and user does not have access to query information about the
-top of the share.  Fix problem in 2.6.28 resolving DFS paths to
-Samba servers (worked to Windows).  Fix rmdir so that pending search
-(readdir) requests do not get invalid results which include the now
-removed directory.  Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
-when using DFS.  Add better file create support to servers which support
-the CIFS POSIX protocol extensions (this adds support for new flags
-on create, and improves semantics for write of locked ranges).
-
-Version 1.55
-------------
-Various fixes to make delete of open files behavior more predictable
-(when delete of an open file fails we mark the file as "delete-on-close"
-in a way that more servers accept, but only if we can first rename the
-file to a temporary name).  Add experimental support for more safely
-handling fcntl(F_SETLEASE).  Convert cifs to using blocking tcp
-sends, and also let tcp autotune the socket send and receive buffers.
-This reduces the number of EAGAIN errors returned by TCP/IP in
-high stress workloads (and the number of retries on socket writes
-when sending large SMBWriteX requests).  Fix case in which a portion of
-data can in some cases not get written to the file on the server before the
-file is closed.  Fix DFS parsing to properly handle path consumed field,
-and to handle certain codepage conversions better.  Fix mount and
-umount race that can cause oops in mount or umount or reconnect.
-
-Version 1.54
-------------
-Fix premature write failure on congested networks (we would give up
-on EAGAIN from the socket too quickly on large writes).
-Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
-Fix endian problems in acl (mode from/to cifs acl) on bigendian
-architectures.  Fix problems with preserving timestamps on copying open
-files (e.g. "cp -a") to Windows servers.  For mkdir and create honor setgid bit
-on parent directory when server supports Unix Extensions but not POSIX
-create. Update cifs.upcall version to handle new Kerberos sec flags
-(this requires update of cifs.upcall program from Samba).  Fix memory leak
-on dns_upcall (resolving DFS referralls).  Fix plain text password
-authentication (requires setting SecurityFlags to 0x30030 to enable
-lanman and plain text though).  Fix writes to be at correct offset when
-file is open with O_APPEND and file is on a directio (forcediretio) mount.
-Fix bug in rewinding readdir directory searches.  Add nodfs mount option.
-
-Version 1.53
-------------
-DFS support added (Microsoft Distributed File System client support needed
-for referrals which enable a hierarchical name space among servers).
-Disable temporary caching of mode bits to servers which do not support
-storing of mode (e.g. Windows servers, when client mounts without cifsacl
-mount option) and add new "dynperm" mount option to enable temporary caching
-of mode (enable old behavior).  Fix hang on mount caused when server crashes
-tcp session during negotiate protocol.
-
-Version 1.52
-------------
-Fix oops on second mount to server when null auth is used.
-Enable experimental Kerberos support.  Return writebehind errors on flush
-and sync so that events like out of disk space get reported properly on
-cached files. Fix setxattr failure to certain Samba versions. Fix mount
-of second share to disconnected server session (autoreconnect on this).
-Add ability to modify cifs acls for handling chmod (when mounted with
-cifsacl flag). Fix prefixpath path separator so we can handle mounts
-with prefixpaths longer than one directory (one path component) when
-mounted to Windows servers.  Fix slow file open when cifsacl
-enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
-
-
-Version 1.51
-------------
-Fix memory leak in statfs when mounted to very old servers (e.g.
-Windows 9x).  Add new feature "POSIX open" which allows servers
-which support the current POSIX Extensions to provide better semantics
-(e.g. delete for open files opened with posix open).  Take into
-account umask on posix mkdir not just older style mkdir.  Add
-ability to mount to IPC$ share (which allows CIFS named pipes to be
-opened, read and written as if they were files).  When 1st tree
-connect fails (e.g. due to signing negotiation failure) fix
-leak that causes cifsd not to stop and rmmod to fail to cleanup
-cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
-bigendian architectures. Fix possible memory corruption when
-EAGAIN returned on kern_recvmsg. Return better error if server
-requires packet signing but client has disabled it. When mounted
-with cifsacl mount option - mode bits are approximated based
-on the contents of the ACL of the file or directory. When cifs
-mount helper is missing convert make sure that UNC name 
-has backslash (not forward slash) between ip address of server
-and the share name.
-
-Version 1.50
-------------
-Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
-done with "serverino" mount option).  Add support for POSIX Unlink
-(helps with certain sharing violation cases when server such as
-Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
-mount option to allow disabling the CIFS Unix Extensions for just
-that mount. Fix hang on spinlock in find_writable_file (race when
-reopening file after session crash).  Byte range unlock request to
-windows server could unlock more bytes (on server copy of file)
-than intended if start of unlock request is well before start of
-a previous byte range lock that we issued.
-
-Version 1.49
-------------
-IPv6 support.  Enable ipv6 addresses to be passed on mount (put the ipv6
-address after the "ip=" mount option, at least until mount.cifs is fixed to
-handle DNS host to ipv6 name translation).  Accept override of uid or gid
-on mount even when Unix Extensions are negotiated (it used to be ignored
-when Unix Extensions were ignored).  This allows users to override the
-default uid and gid for files when they are certain that the uids or
-gids on the server do not match those of the client.  Make "sec=none"
-mount override username (so that null user connection is attempted)
-to match what documentation said. Support for very large reads, over 127K,
-available to some newer servers (such as Samba 3.0.26 and later but
-note that it also requires setting CIFSMaxBufSize at module install
-time to a larger value which may hurt performance in some cases).
-Make sign option force signing (or fail if server does not support it).
-
-Version 1.48
-------------
-Fix mtime bouncing around from local idea of last write times to remote time.
-Fix hang (in i_size_read) when simultaneous size update of same remote file
-on smp system corrupts sequence number. Do not reread unnecessarily partial page
-(which we are about to overwrite anyway) when writing out file opened rw.
-When DOS attribute of file on non-Unix server's file changes on the server side
-from read-only back to read-write, reflect this change in default file mode
-(we had been leaving a file's mode read-only until the inode were reloaded).
-Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
-when archive dos attribute not set and we are changing mode back to writeable
-on server which does not support the Unix Extensions).  Remove read only dos
-attribute on chmod when adding any write permission (ie on any of
-user/group/other (not all of user/group/other ie  0222) when
-mounted to windows.  Add support for POSIX MkDir (slight performance
-enhancement and eliminates the network race between the mkdir and set 
-path info of the mode).
-
-
-Version 1.47
-------------
-Fix oops in list_del during mount caused by unaligned string.
-Fix file corruption which could occur on some large file
-copies caused by writepages page i/o completion bug.
-Seek to SEEK_END forces check for update of file size for non-cached
-files. Allow file size to be updated on remote extend of locally open,
-non-cached file.  Fix reconnect to newer Samba servers (or other servers
-which support the CIFS Unix/POSIX extensions) so that we again tell the
-server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
-Add experimental support for new POSIX Open/Mkdir (which returns
-stat information on the open, and allows setting the mode).
-
-Version 1.46
-------------
-Support deep tree mounts.  Better support OS/2, Win9x (DOS) time stamps.
-Allow null user to be specified on mount ("username="). Do not return
-EINVAL on readdir when filldir fails due to overwritten blocksize
-(fixes FC problem).  Return error in rename 2nd attempt retry (ie report
-if rename by handle also fails, after rename by path fails, we were
-not reporting whether the retry worked or not). Fix NTLMv2 to
-work to Windows servers (mount with option "sec=ntlmv2").
-
-Version 1.45
-------------
-Do not time out lockw calls when using posix extensions. Do not
-time out requests if server still responding reasonably fast
-on requests on other threads.  Improve POSIX locking emulation,
-(lock cancel now works, and unlock of merged range works even
-to Windows servers now).  Fix oops on mount to lanman servers
-(win9x, os/2 etc.) when null password.  Do not send listxattr
-(SMB to query all EAs) if nouser_xattr specified.  Fix SE Linux
-problem (instantiate inodes/dentries in right order for readdir).
-
-Version 1.44
-------------
-Rewritten sessionsetup support, including support for legacy SMB
-session setup needed for OS/2 and older servers such as Windows 95 and 98.
-Fix oops on ls to OS/2 servers.  Add support for level 1 FindFirst
-so we can do search (ls etc.) to OS/2.  Do not send NTCreateX
-or recent levels of FindFirst unless server says it supports NT SMBs
-(instead use legacy equivalents from LANMAN dialect). Fix to allow
-NTLMv2 authentication support (now can use stronger password hashing
-on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
-Allow override of global cifs security flags on mount via "sec=" option(s).
-
-Version 1.43
-------------
-POSIX locking to servers which support CIFS POSIX Extensions
-(disabled by default controlled by proc/fs/cifs/Experimental).
-Handle conversion of long share names (especially Asian languages)
-to Unicode during mount. Fix memory leak in sess struct on reconnect.
-Fix rare oops after acpi suspend.  Fix O_TRUNC opens to overwrite on
-cifs open which helps rare case when setpathinfo fails or server does
-not support it. 
-
-Version 1.42
-------------
-Fix slow oplock break when mounted to different servers at the same time and
-the tids match and we try to find matching fid on wrong server. Fix read
-looping when signing required by server (2.6.16 kernel only). Fix readdir
-vs. rename race which could cause each to hang. Return . and .. even
-if server does not.  Allow searches to skip first three entries and
-begin at any location. Fix oops in find_writeable_file.
-
-Version 1.41
-------------
-Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
-configure stronger authentication.  Fix sfu symlinks so they can
-be followed (not just recognized).  Fix wraparound of bcc on
-read responses when buffer size over 64K and also fix wrap of
-max smb buffer size when CIFSMaxBufSize over 64K.  Fix oops in
-cifs_user_read and cifs_readpages (when EAGAIN on send of smb
-on socket is returned over and over).  Add POSIX (advisory) byte range
-locking support (requires server with newest CIFS UNIX Extensions
-to the protocol implemented). Slow down negprot slightly in port 139
-RFC1001 case to give session_init time on buggy servers.
-
-Version 1.40
-------------
-Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
-of readpages by eliminating one extra memcpy. Allow update of file size
-from remote server even if file is open for write as long as mount is
-directio.  Recognize share mode security and send NTLM encrypted password
-on tree connect if share mode negotiated.
-
-Version 1.39
-------------
-Defer close of a file handle slightly if pending writes depend on that handle
-(this reduces the EBADF bad file handle errors that can be logged under heavy
-stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2 
-Fix SFU style symlinks and mknod needed for servers which do not support the
-CIFS Unix Extensions.  Fix setfacl/getfacl on bigendian. Timeout negative
-dentries so files that the client sees as deleted but that later get created
-on the server will be recognized.  Add client side permission check on setattr.
-Timeout stuck requests better (where server has never responded or sent corrupt
-responses)
-
-Version 1.38
-------------
-Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
-to be smaller at first (but increasing) so large write performance performance
-over GigE is better.  Do not hang thread on illegal byte range lock response
-from Windows (Windows can send an RFC1001 size which does not match smb size) by
-allowing an SMBs TCP length to be up to a few bytes longer than it should be.
-wsize and rsize can now be larger than negotiated buffer size if server
-supports large readx/writex, even when directio mount flag not specified.
-Write size will in many cases now be 16K instead of 4K which greatly helps
-file copy performance on lightly loaded networks.  Fix oops in dnotify
-when experimental config flag enabled. Make cifsFYI more granular.
-
-Version 1.37
-------------
-Fix readdir caching when unlink removes file in current search buffer,
-and this is followed by a rewind search to just before the deleted entry.
-Do not attempt to set ctime unless atime and/or mtime change requested
-(most servers throw it away anyway). Fix length check of received smbs
-to be more accurate. Fix big endian problem with mapchars mount option,
-and with a field returned by statfs.
-
-Version 1.36
-------------
-Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
-For these older servers, add option for passing netbios name of server in
-on mount (servernetbiosname).  Add suspend support for power management, to
-avoid cifsd thread preventing software suspend from working.
-Add mount option for disabling the default behavior of sending byte range lock
-requests to the server (necessary for certain applications which break with
-mandatory lock behavior such as Evolution), and also mount option for
-requesting case insensitive matching for path based requests (requesting
-case sensitive is the default).
-
-Version 1.35
-------------
-Add writepage performance improvements.  Fix path name conversions
-for long filenames on mounts which were done with "mapchars" mount option
-specified.  Ensure multiplex ids do not collide.  Fix case in which 
-rmmod can oops if done soon after last unmount.  Fix truncated
-search (readdir) output when resume filename was a long filename.
-Fix filename conversion when mapchars mount option was specified and
-filename was a long filename.
-
-Version 1.34
-------------
-Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
-Do not oops if root user kills cifs oplock kernel thread or
-kills the cifsd thread (NB: killing the cifs kernel threads is not
-recommended, unmount and rmmod cifs will kill them when they are
-no longer needed).  Fix readdir to ASCII servers (ie older servers
-which do not support Unicode) and also require asterisk.
-Fix out of memory case in which data could be written one page
-off in the page cache.
-
-Version 1.33
-------------
-Fix caching problem, in which readdir of directory containing a file
-which was cached could cause the file's time stamp to be updated
-without invalidating the readahead data (so we could get stale
-file data on the client for that file even as the server copy changed).
-Cleanup response processing so cifsd can not loop when abnormally
-terminated.
-
-
-Version 1.32
-------------
-Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
-transact response for an SMB request and search entry split across two frames.
-Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
-as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
-unless server explicitly claims to support them in CIFS Unix extensions
-POSIX ACL capability bit. Fix packet signing when multiuser mounting with
-different users from the same client to the same server. Fix oops in
-cifs_close. Add mount option for remapping reserved characters in
-filenames (also allow recognizing files with created by SFU which have any
-of these seven reserved characters, except backslash, to be recognized).
-Fix invalid transact2 message (we were sometimes trying to interpret
-oplock breaks as SMB responses). Add ioctl for checking that the
-current uid matches the uid of the mounter (needed by umount.cifs).
-Reduce the number of large buffer allocations in cifs response processing
-(significantly reduces memory pressure under heavy stress with multiple
-processes accessing the same server at the same time).
-
-Version 1.31
-------------
-Fix updates of DOS attributes and time fields so that files on NT4 servers
-do not get marked delete on close. Display sizes of cifs buffer pools in
-cifs stats. Fix oops in unmount when cifsd thread being killed by 
-shutdown. Add generic readv/writev and aio support. Report inode numbers 
-consistently in readdir and lookup (when serverino mount option is
-specified use the inode number that the server reports - for both lookup
-and readdir, otherwise by default the locally generated inode number is used
-for inodes created in either path since servers are not always able to 
-provide unique inode numbers when exporting multiple volumes from under one
-sharename).
-
-Version 1.30
-------------
-Allow new nouser_xattr mount parm to disable xattr support for user namespace.
-Do not flag user_xattr mount parm in dmesg.  Retry failures setting file time  
-(mostly affects NT4 servers) by retry with handle based network operation. 
-Add new POSIX Query FS Info for returning statfs info more accurately.
-Handle passwords with multiple commas in them.
-
-Version 1.29
-------------
-Fix default mode in sysfs of cifs module parms.  Remove old readdir routine.
-Fix capabilities flags for large readx so as to allow reads larger than 64K.
-
-Version 1.28
-------------
-Add module init parm for large SMB buffer size (to allow it to be changed
-from its default of 16K) which is especially useful for large file copy
-when mounting with the directio mount option. Fix oops after 
-returning from mount when experimental ExtendedSecurity enabled and
-SpnegoNegotiated returning invalid error. Fix case to retry better when 
-peek returns from 1 to 3 bytes on socket which should have more data.
-Fixed path based calls (such as cifs lookup) to handle path names
-longer than 530 (now can handle PATH_MAX). Fix pass through authentication
-from Samba server to DC (Samba required dummy LM password).
-
-Version 1.27
-------------
-Turn off DNOTIFY (directory change notification support) by default
-(unless built with the experimental flag) to fix hang with KDE
-file browser. Fix DNOTIFY flag mappings.  Fix hang (in wait_event
-waiting on an SMB response) in SendReceive when session dies but
-reconnects quickly from another task.  Add module init  parms for
-minimum number of large and small network buffers in the buffer pools,
-and for the maximum number of simultaneous requests.
-
-Version 1.26
-------------
-Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
-and other POSIX CIFS compliant servers.  Fix error mapping for getfacl 
-to EOPNOTSUPP when server does not support posix acls on the wire. Fix 
-improperly zeroed buffer in CIFS Unix extensions set times call. 
-
-Version 1.25
-------------
-Fix internationalization problem in cifs readdir with filenames that map to 
-longer UTF-8 strings than the string on the wire was in Unicode.  Add workaround
-for readdir to netapp servers. Fix search rewind (seek into readdir to return 
-non-consecutive entries).  Do not do readdir when server negotiates 
-buffer size to small to fit filename. Add support for reading POSIX ACLs from
-the server (add also acl and noacl mount options).
-
-Version 1.24
-------------
-Optionally allow using server side inode numbers, rather than client generated
-ones by specifying mount option "serverino" - this is required for some apps
-to work which double check hardlinked files and have persistent inode numbers.
-
-Version 1.23
-------------
-Multiple bigendian fixes. On little endian systems (for reconnect after
-network failure) fix tcp session reconnect code so we do not try first
-to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
-as directories rather than symlinks because we can do follow link on them.
-
-Version 1.22
-------------
-Add config option to enable XATTR (extended attribute) support, mapping
-xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
-minor fixes pointed out by the Stanford SWAT checker (mostly missing
-or out of order NULL pointer checks in little used error paths).
-
-Version 1.21
-------------
-Add new mount parm to control whether mode check (generic_permission) is done
-on the client.  If Unix extensions are enabled and the uids on the client
-and server do not match, client permission checks are meaningless on
-server uids that do not exist on the client (this does not affect the
-normal ACL check which occurs on the server).  Fix default uid
-on mknod to match create and mkdir. Add optional mount parm to allow
-override of the default uid behavior (in which the server sets the uid
-and gid of newly created files). Normally for network filesystem mounts
-user want the server to set the uid/gid on newly created files (rather than 
-using uid of the client processes you would in a local filesystem).
-
-Version 1.20
-------------
-Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
-info into /proc/fs/cifs/DebugData.  Fix oops in rare oops in readdir 
-(in build_wildcard_path_from_dentry).  Fix mknod to pass type field
-(block/char/fifo) properly.  Remove spurious mount warning log entry when
-credentials passed as mount argument. Set major/minor device number in
-inode for block and char devices when unix extensions enabled.
-
-Version 1.19
-------------
-Fix /proc/fs/cifs/Stats and DebugData display to handle larger
-amounts of return data. Properly limit requests to MAX_REQ (50
-is the usual maximum active multiplex SMB/CIFS requests per server).
-Do not kill cifsd (and thus hurt the other SMB session) when more than one
-session to the same server (but with different userids) exists and one
-of the two user's smb sessions is being removed while leaving the other.
-Do not loop reconnecting in cifsd demultiplex thread when admin
-kills the thread without going through unmount.
-
-Version 1.18
-------------
-Do not rename hardlinked files (since that should be a noop). Flush
-cached write behind data when reopening a file after session abend,
-except when already in write. Grab per socket sem during reconnect 
-to avoid oops in sendmsg if overlapping with reconnect. Do not
-reset cached inode file size on readdir for files open for write on 
-client.
-
-
-Version 1.17
-------------
-Update number of blocks in file so du command is happier (in Linux a fake
-blocksize of 512 is required for calculating number of blocks in inode).
-Fix prepare write of partial pages to read in data from server if possible.
-Fix race on tcpStatus field between unmount and reconnection code, causing
-cifsd process sometimes to hang around forever. Improve out of memory
-checks in cifs_filldir
-
-Version 1.16
-------------
-Fix incorrect file size in file handle based setattr on big endian hardware.
-Fix oops in build_path_from_dentry when out of memory.  Add checks for invalid
-and closing file structs in writepage/partialpagewrite.  Add statistics
-for each mounted share (new menuconfig option). Fix endianness problem in
-volume information displayed in /proc/fs/cifs/DebugData (only affects
-affects big endian architectures). Prevent renames while constructing
-path names for open, mkdir and rmdir.
-
-Version 1.15
-------------
-Change to mempools for alloc smb request buffers and multiplex structs
-to better handle low memory problems (and potential deadlocks).
-
-Version 1.14
-------------
-Fix incomplete listings of large directories on Samba servers when Unix
-extensions enabled.  Fix oops when smb_buffer can not be allocated. Fix
-rename deadlock when writing out dirty pages at same time.
-
-Version 1.13
-------------
-Fix open of files in which O_CREATE can cause the mode to change in
-some cases. Fix case in which retry of write overlaps file close.
-Fix PPC64 build error.  Reduce excessive stack usage in smb password
-hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
-
-Version 1.12
-------------
-Fixes for large file copy, signal handling, socket retry, buffer
-allocation and low memory situations.
-
-Version 1.11
-------------
-Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
-also now allowing support for specifying client netbiosname.  NT4 support added.
-
-Version 1.10
-------------
-Fix reconnection (and certain failed mounts) to properly wake up the
-blocked users thread so it does not seem hung (in some cases was blocked
-until the cifs receive timeout expired). Fix spurious error logging
-to kernel log when application with open network files killed. 
-
-Version 1.09
-------------
-Fix /proc/fs module unload warning message (that could be logged
-to the kernel log). Fix intermittent failure in connectathon
-test7 (hardlink count not immediately refreshed in case in which
-inode metadata can be incorrectly kept cached when time near zero)
-
-Version 1.08
-------------
-Allow file_mode and dir_mode (specified at mount time) to be enforced
-locally (the server already enforced its own ACLs too) for servers
-that do not report the correct mode (do not support the 
-CIFS Unix Extensions).
-
-Version 1.07
-------------
-Fix some small memory leaks in some unmount error paths. Fix major leak
-of cache pages in readpages causing multiple read oriented stress
-testcases (including fsx, and even large file copy) to fail over time. 
-
-Version 1.06
-------------
-Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
-This allows files that differ only in case and improves performance of file
-creation and file open to such servers.  Fix semaphore conflict which causes 
-slow delete of open file to Samba (which unfortunately can cause an oplock
-break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
-
-Version 1.05
-------------
-fixes to cifs_readpages for fsx test case
-
-Version 1.04
-------------
-Fix caching data integrity bug when extending file size especially when no
-oplock on file.  Fix spurious logging of valid already parsed mount options
-that are parsed outside of the cifs vfs such as nosuid.
-
-
-Version 1.03
-------------
-Connect to server when port number override not specified, and tcp port
-unitialized.  Reset search to restart at correct file when kernel routine
-filldir returns error during large directory searches (readdir). 
-
-Version 1.02
-------------
-Fix caching problem when files opened by multiple clients in which 
-page cache could contain stale data, and write through did
-not occur often enough while file was still open when read ahead
-(read oplock) not allowed.  Treat "sep=" when first mount option
-as an override of comma as the default separator between mount
-options. 
-
-Version 1.01
-------------
-Allow passwords longer than 16 bytes. Allow null password string.
-
-Version 1.00
-------------
-Gracefully clean up failed mounts when attempting to mount to servers such as
-Windows 98 that terminate tcp sessions during protocol negotiation.  Handle
-embedded commas in mount parsing of passwords.
-
-Version 0.99
-------------
-Invalidate local inode cached pages on oplock break and when last file
-instance is closed so that the client does not continue using stale local
-copy rather than later modified server copy of file.  Do not reconnect
-when server drops the tcp session prematurely before negotiate
-protocol response.  Fix oops in reopen_file when dentry freed.  Allow
-the support for CIFS Unix Extensions to be disabled via proc interface.
-
-Version 0.98
-------------
-Fix hang in commit_write during reconnection of open files under heavy load.
-Fix unload_nls oops in a mount failure path. Serialize writes to same socket
-which also fixes any possible races when cifs signatures are enabled in SMBs
-being sent out of signature sequence number order.    
-
-Version 0.97
-------------
-Fix byte range locking bug (endian problem) causing bad offset and
-length.
-
-Version 0.96
-------------
-Fix oops (in send_sig) caused by CIFS unmount code trying to
-wake up the demultiplex thread after it had exited. Do not log
-error on harmless oplock release of closed handle.
-
-Version 0.95
-------------
-Fix unsafe global variable usage and password hash failure on gcc 3.3.1
-Fix problem reconnecting secondary mounts to same server after session 
-failure.  Fix invalid dentry - race in mkdir when directory gets created
-by another client between the lookup and mkdir.
- 
-Version 0.94
-------------
-Fix to list processing in reopen_files. Fix reconnection when server hung
-but tcpip session still alive.  Set proper timeout on socket read.
-
-Version 0.93
-------------
-Add missing mount options including iocharset.  SMP fixes in write and open. 
-Fix errors in reconnecting after TCP session failure.  Fix module unloading
-of default nls codepage
-
-Version 0.92
-------------
-Active smb transactions should never go negative (fix double FreeXid). Fix
-list processing in file routines. Check return code on kmalloc in open.
-Fix spinlock usage for SMP.
-
-Version 0.91
-------------
-Fix oops in reopen_files when invalid dentry. drop dentry on server rename 
-and on revalidate errors. Fix cases where pid is now tgid.  Fix return code
-on create hard link when server does not support them. 
-
-Version 0.90
-------------
-Fix scheduling while atomic error in getting inode info on newly created file. 
-Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
-
-Version 0.89
-------------
-Fix oops on write to dead tcp session. Remove error log write for case when file open
-O_CREAT but not O_EXCL
-
-Version 0.88
-------------
-Fix non-POSIX behavior on rename of open file and delete of open file by taking 
-advantage of trans2 SetFileInfo rename facility if available on target server.
-Retry on ENOSPC and EAGAIN socket errors.
-
-Version 0.87
-------------
-Fix oops on big endian readdir.  Set blksize to be even power of two (2**blkbits) to fix
-allocation size miscalculation. After oplock token lost do not read through
-cache. 
-
-Version 0.86
-------------
-Fix oops on empty file readahead.  Fix for file size handling for locally cached files.
-
-Version 0.85
-------------
-Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
-during auto reconnection to server after server recovered from failure.
-
-Version 0.84
-------------
-Finish support for Linux 2.5 open/create changes, which removes the
-redundant NTCreate/QPathInfo/close that was sent during file create.
-Enable oplock by default. Enable packet signing by default (needed to 
-access many recent Windows servers)
-
-Version 0.83
-------------
-Fix oops when mounting to long server names caused by inverted parms to kmalloc.
-Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
-we will choose a cifs user session (smb uid) that better matches the local
-uid if a) the mount uid does not match the current uid and b) we have another
-session to the same server (ip address) for a different mount which
-matches the current local uid.
-
-Version 0.82
-------------
-Add support for mknod of block or character devices.  Fix oplock
-code (distributed caching) to properly send response to oplock
-break from server.
-
-Version 0.81
-------------
-Finish up CIFS packet digital signing for the default
-NTLM security case. This should help Windows 2003
-network interoperability since it is common for
-packet signing to be required now. Fix statfs (stat -f)
-which recently started returning errors due to 
-invalid value (-1 instead of 0) being set in the
-struct kstatfs f_ffiles field.
-
-Version 0.80
------------
-Fix oops on stopping oplock thread when removing cifs when
-built as module.
-
-Version 0.79
-------------
-Fix mount options for ro (readonly), uid, gid and file and directory mode. 
-
-Version 0.78
-------------
-Fix errors displayed on failed mounts to be more understandable.
-Fixed various incorrect or misleading smb to posix error code mappings.
-
-Version 0.77
-------------
-Fix display of NTFS DFS junctions to display as symlinks.
-They are the network equivalent.  Fix oops in 
-cifs_partialpagewrite caused by missing spinlock protection
-of openfile linked list.  Allow writebehind caching errors to 
-be returned to the application at file close.
-
-Version 0.76
-------------
-Clean up options displayed in /proc/mounts by show_options to
-be more consistent with other filesystems.
-
-Version 0.75
-------------
-Fix delete of readonly file to Windows servers.  Reflect
-presence or absence of read only dos attribute in mode
-bits for servers that do not support CIFS Unix extensions.
-Fix shortened results on readdir of large directories to
-servers supporting CIFS Unix extensions (caused by
-incorrect resume key).
-
-Version 0.74
-------------
-Fix truncate bug (set file size) that could cause hangs e.g. running fsx
-
-Version 0.73
-------------
-unload nls if mount fails.
-
-Version 0.72
-------------
-Add resume key support to search (readdir) code to workaround
-Windows bug.  Add /proc/fs/cifs/LookupCacheEnable which
-allows disabling caching of attribute information for
-lookups.
-
-Version 0.71
-------------
-Add more oplock handling (distributed caching code).  Remove
-dead code.  Remove excessive stack space utilization from
-symlink routines.
-
-Version 0.70
-------------
-Fix oops in get dfs referral (triggered when null path sent in to
-mount).  Add support for overriding rsize at mount time.
-
-Version 0.69
-------------
-Fix buffer overrun in readdir which caused intermittent kernel oopses.
-Fix writepage code to release kmap on write data.  Allow "-ip=" new 
-mount option to be passed in on parameter distinct from the first part
-(server name portion of) the UNC name.  Allow override of the
-tcp port of the target server via new mount option "-port="  
-
-Version 0.68
-------------
-Fix search handle leak on rewind.  Fix setuid and gid so that they are 
-reflected in the local inode immediately.  Cleanup of whitespace
-to make 2.4 and 2.5 versions more consistent.
-
-
-Version 0.67
-------------
-Fix signal sending so that captive thread (cifsd) exits on umount 
-(which was causing the warning in kmem_cache_free of the request buffers
-at rmmod time).  This had broken as a sideeffect of the recent global
-kernel change to daemonize.  Fix memory leak in readdir code which
-showed up in "ls -R" (and applications that did search rewinding).
-
-Version 0.66
-------------
-Reconnect tids and fids after session reconnection (still do not
-reconnect byte range locks though).  Fix problem caching
-lookup information for directory inodes, improving performance,
-especially in deep directory trees.  Fix various build warnings.
-
-Version 0.65
-------------
-Finish fixes to commit write for caching/readahead consistency.  fsx 
-now works to Samba servers.  Fix oops caused when readahead
-was interrupted by a signal.
-
-Version 0.64
-------------
-Fix data corruption (in partial page after truncate) that caused fsx to
-fail to Windows servers.  Cleaned up some extraneous error logging in
-common error paths.  Add generic sendfile support.
-
-Version 0.63
-------------
-Fix memory leak in AllocMidQEntry.
-Finish reconnection logic, so connection with server can be dropped
-(or server rebooted) and the cifs client will reconnect.  
-
-Version 0.62
-------------
-Fix temporary socket leak when bad userid or password specified 
-(or other SMBSessSetup failure).  Increase maximum buffer size to slightly
-over 16K to allow negotiation of up to Samba and Windows server default read 
-sizes.  Add support for readpages
-
-Version 0.61
-------------
-Fix oops when username not passed in on mount.  Extensive fixes and improvements
-to error logging (strip redundant newlines, change debug macros to ensure newline
-passed in and to be more consistent).  Fix writepage wrong file handle problem,
-a readonly file handle could be incorrectly used to attempt to write out
-file updates through the page cache to multiply open files.  This could cause
-the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
-shares to the same Windows server when using different usernames
-(doing this to Samba servers worked but Windows was rejecting it) - now it is
-possible to use different userids when connecting to the same server from a
-Linux client. Fix oops when treeDisconnect called during unmount on
-previously freed socket.
-
-Version 0.60
-------------
-Fix oops in readpages caused by not setting address space operations in inode in 
-rare code path. 
-
-Version 0.59
-------------
-Includes support for deleting of open files and renaming over existing files (per POSIX
-requirement).  Add readlink support for Windows junction points (directory symlinks).
-
-Version 0.58
-------------
-Changed read and write to go through pagecache. Added additional address space operations.
-Memory mapped operations now working.
-
-Version 0.57
-------------
-Added writepage code for additional memory mapping support.  Fixed leak in xids causing
-the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on 
-every stat call.  Additional formatting cleanup. 
-
-Version 0.56
-------------
-Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version.  Formatting cleanup.   
-
-Version 0.55
-------------
-Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
-Also included a modified version of his fix to protect global list manipulation of
-the smb session and tree connection and mid related global variables.
-
-Version 0.54
-------------
-Fix problem with captive thread hanging around at unmount time.  Adjust to 2.5.42-pre
-changes to superblock layout.   Remove wasteful allocation of smb buffers (now the send 
-buffer is reused for responses).  Add more oplock handling. Additional minor cleanup.
-
-Version 0.53
-------------
-More stylistic updates to better match kernel style.  Add additional statistics
-for filesystem which can be viewed via /proc/fs/cifs.  Add more pieces of NTLMv2
-and CIFS Packet Signing enablement.
-
-Version 0.52
-------------
-Replace call to sleep_on with safer wait_on_event.
-Make stylistic changes to better match kernel style recommendations.
-Remove most typedef usage (except for the PDUs themselves).
-
-Version 0.51
-------------
-Update mount so the -unc mount option is no longer required (the ip address can be specified
-in a UNC style device name.   Implementation of readpage/writepage started.
-
-Version 0.50
-------------
-Fix intermittent problem with incorrect smb header checking on badly 
-fragmented tcp responses
-
-Version 0.49
-------------
-Fixes to setting of allocation size and file size.
-
-Version 0.48
-------------
-Various 2.5.38 fixes.  Now works on 2.5.38
-
-Version 0.47
-------------
-Prepare for 2.5 kernel merge.  Remove ifdefs.
-
-Version 0.46
-------------
-Socket buffer management fixes.  Fix dual free.
-
-Version 0.45
-------------
-Various big endian fixes for hardlinks and symlinks and also for dfs.
-
-Version 0.44
-------------
-Various big endian fixes for servers with Unix extensions such as Samba
-
-Version 0.43
-------------
-Various FindNext fixes for incorrect filenames on large directory searches on big endian
-clients.  basic posix file i/o tests now work on big endian machines, not just le
-
-Version 0.42
-------------
-SessionSetup and NegotiateProtocol now work from Big Endian machines.
-Various Big Endian fixes found during testing on the Linux on 390.  Various fixes for compatibility with older
-versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
-
-Version 0.41
-------------
-Various minor fixes for Connectathon Posix "basic" file i/o test suite.  Directory caching fixed so hardlinked
-files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
-
-Version 0.40
-------------
-Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
-session advanced session authentication).  Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
-Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
-(which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
-
-Version 0.38
-------------
-Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
-it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
-
-Version 0.37
-------------
-Rewrote much of connection and mount/unmount logic to handle bugs with
-multiple uses to same share, multiple users to same server etc.
-
-Version 0.36
-------------
-Fixed major problem with dentry corruption (missing call to dput)
-
-Version 0.35
-------------
-Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
-Begin adding oplock support.  Multiusermount and oplockEnabled flags added to /proc/fs/cifs
-although corresponding function not fully implemented in the vfs yet
-
-Version 0.34
-------------
-Fixed dentry caching bug, misc. cleanup 
-
-Version 0.33
-------------
-Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes.  Now can build
-on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
-Support for STATUS codes (newer 32 bit NT error codes) added.  DFS support begun to be added.
-
-Version 0.32
-------------
-Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
-and tested against Samba 2.2.5
-
-
-Version 0.31
-------------
-1) Fixed lockrange to be correct (it was one byte too short)
-
-2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly 
-show range as locked when there is a conflict with an existing lock.
-
-3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
-in most cases.  Eventually will offer optional ability to query server for the correct perms.
-
-3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded 
-but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
-session) 
-
-4) Fixed error logging of valid mount options
-
-5) Removed logging of password field.
-
-6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
-and cleaned them up and made them more consistent with other cifs functions. 
-
-7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways 
-(with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
-nor is the symlink support using the Unix extensions
-
-8) Started adding the readlink and follow_link code 
-
-Version 0.3 
------------
-Initial drop
-
diff --git a/fs/cifs/README b/fs/cifs/README
deleted file mode 100644
index 2d5622f60e11..000000000000
--- a/fs/cifs/README
+++ /dev/null
@@ -1,753 +0,0 @@
-The CIFS VFS support for Linux supports many advanced network filesystem 
-features such as hierarchical dfs like namespace, hardlinks, locking and more.  
-It was designed to comply with the SNIA CIFS Technical Reference (which 
-supersedes the 1992 X/Open SMB Standard) as well as to perform best practice 
-practical interoperability with Windows 2000, Windows XP, Samba and equivalent 
-servers.  This code was developed in participation with the Protocol Freedom
-Information Foundation.
-
-Please see
-  http://protocolfreedom.org/ and
-  http://samba.org/samba/PFIF/
-for more details.
-
-
-For questions or bug reports please contact:
-    sfrench@samba.org (sfrench@us.ibm.com) 
-
-Build instructions:
-==================
-For Linux 2.4:
-1) Get the kernel source (e.g.from http://www.kernel.org)
-and download the cifs vfs source (see the project page
-at http://us1.samba.org/samba/Linux_CIFS_client.html)
-and change directory into the top of the kernel directory
-then patch the kernel (e.g. "patch -p1 < cifs_24.patch") 
-to add the cifs vfs to your kernel configure options if
-it has not already been added (e.g. current SuSE and UL
-users do not need to apply the cifs_24.patch since the cifs vfs is
-already in the kernel configure menu) and then
-mkdir linux/fs/cifs and then copy the current cifs vfs files from
-the cifs download to your kernel build directory e.g.
-
-	cp <cifs_download_dir>/fs/cifs/* to <kernel_download_dir>/fs/cifs
-	
-2) make menuconfig (or make xconfig)
-3) select cifs from within the network filesystem choices
-4) save and exit
-5) make dep
-6) make modules (or "make" if CIFS VFS not to be built as a module)
-
-For Linux 2.6:
-1) Download the kernel (e.g. from http://www.kernel.org)
-and change directory into the top of the kernel directory tree
-(e.g. /usr/src/linux-2.5.73)
-2) make menuconfig (or make xconfig)
-3) select cifs from within the network filesystem choices
-4) save and exit
-5) make
-
-
-Installation instructions:
-=========================
-If you have built the CIFS vfs as module (successfully) simply
-type "make modules_install" (or if you prefer, manually copy the file to
-the modules directory e.g. /lib/modules/2.4.10-4GB/kernel/fs/cifs/cifs.o).
-
-If you have built the CIFS vfs into the kernel itself, follow the instructions
-for your distribution on how to install a new kernel (usually you
-would simply type "make install").
-
-If you do not have the utility mount.cifs (in the Samba 3.0 source tree and on 
-the CIFS VFS web site) copy it to the same directory in which mount.smbfs and 
-similar files reside (usually /sbin).  Although the helper software is not  
-required, mount.cifs is recommended.  Eventually the Samba 3.0 utility program 
-"net" may also be helpful since it may someday provide easier mount syntax for
-users who are used to Windows e.g.
-	net use <mount point> <UNC name or cifs URL>
-Note that running the Winbind pam/nss module (logon service) on all of your
-Linux clients is useful in mapping Uids and Gids consistently across the
-domain to the proper network user.  The mount.cifs mount helper can be
-trivially built from Samba 3.0 or later source e.g. by executing:
-
-	gcc samba/source/client/mount.cifs.c -o mount.cifs
-
-If cifs is built as a module, then the size and number of network buffers
-and maximum number of simultaneous requests to one server can be configured.
-Changing these from their defaults is not recommended. By executing modinfo
-	modinfo kernel/fs/cifs/cifs.ko
-on kernel/fs/cifs/cifs.ko the list of configuration changes that can be made
-at module initialization time (by running insmod cifs.ko) can be seen.
-
-Allowing User Mounts
-====================
-To permit users to mount and unmount over directories they own is possible
-with the cifs vfs.  A way to enable such mounting is to mark the mount.cifs
-utility as suid (e.g. "chmod +s /sbin/mount.cifs). To enable users to 
-umount shares they mount requires
-1) mount.cifs version 1.4 or later
-2) an entry for the share in /etc/fstab indicating that a user may
-unmount it e.g.
-//server/usersharename  /mnt/username cifs user 0 0
-
-Note that when the mount.cifs utility is run suid (allowing user mounts), 
-in order to reduce risks, the "nosuid" mount flag is passed in on mount to
-disallow execution of an suid program mounted on the remote target.
-When mount is executed as root, nosuid is not passed in by default,
-and execution of suid programs on the remote target would be enabled
-by default. This can be changed, as with nfs and other filesystems, 
-by simply specifying "nosuid" among the mount options. For user mounts 
-though to be able to pass the suid flag to mount requires rebuilding 
-mount.cifs with the following flag: 
- 
-        gcc samba/source/client/mount.cifs.c -DCIFS_ALLOW_USR_SUID -o mount.cifs
-
-There is a corresponding manual page for cifs mounting in the Samba 3.0 and
-later source tree in docs/manpages/mount.cifs.8 
-
-Allowing User Unmounts
-======================
-To permit users to ummount directories that they have user mounted (see above),
-the utility umount.cifs may be used.  It may be invoked directly, or if 
-umount.cifs is placed in /sbin, umount can invoke the cifs umount helper
-(at least for most versions of the umount utility) for umount of cifs
-mounts, unless umount is invoked with -i (which will avoid invoking a umount
-helper). As with mount.cifs, to enable user unmounts umount.cifs must be marked
-as suid (e.g. "chmod +s /sbin/umount.cifs") or equivalent (some distributions
-allow adding entries to a file to the /etc/permissions file to achieve the
-equivalent suid effect).  For this utility to succeed the target path
-must be a cifs mount, and the uid of the current user must match the uid
-of the user who mounted the resource.
-
-Also note that the customary way of allowing user mounts and unmounts is 
-(instead of using mount.cifs and unmount.cifs as suid) to add a line
-to the file /etc/fstab for each //server/share you wish to mount, but
-this can become unwieldy when potential mount targets include many
-or  unpredictable UNC names.
-
-Samba Considerations 
-==================== 
-To get the maximum benefit from the CIFS VFS, we recommend using a server that 
-supports the SNIA CIFS Unix Extensions standard (e.g.  Samba 2.2.5 or later or 
-Samba 3.0) but the CIFS vfs works fine with a wide variety of CIFS servers.  
-Note that uid, gid and file permissions will display default values if you do 
-not have a server that supports the Unix extensions for CIFS (such as Samba 
-2.2.5 or later).  To enable the Unix CIFS Extensions in the Samba server, add 
-the line: 
-
-	unix extensions = yes
-	
-to your smb.conf file on the server.  Note that the following smb.conf settings 
-are also useful (on the Samba server) when the majority of clients are Unix or 
-Linux: 
-
-	case sensitive = yes
-	delete readonly = yes 
-	ea support = yes
-
-Note that server ea support is required for supporting xattrs from the Linux
-cifs client, and that EA support is present in later versions of Samba (e.g. 
-3.0.6 and later (also EA support works in all versions of Windows, at least to
-shares on NTFS filesystems).  Extended Attribute (xattr) support is an optional
-feature of most Linux filesystems which may require enabling via
-make menuconfig. Client support for extended attributes (user xattr) can be
-disabled on a per-mount basis by specifying "nouser_xattr" on mount.
-
-The CIFS client can get and set POSIX ACLs (getfacl, setfacl) to Samba servers
-version 3.10 and later.  Setting POSIX ACLs requires enabling both XATTR and 
-then POSIX support in the CIFS configuration options when building the cifs
-module.  POSIX ACL support can be disabled on a per mount basic by specifying
-"noacl" on mount.
- 
-Some administrators may want to change Samba's smb.conf "map archive" and 
-"create mask" parameters from the default.  Unless the create mask is changed
-newly created files can end up with an unnecessarily restrictive default mode,
-which may not be what you want, although if the CIFS Unix extensions are
-enabled on the server and client, subsequent setattr calls (e.g. chmod) can
-fix the mode.  Note that creating special devices (mknod) remotely 
-may require specifying a mkdev function to Samba if you are not using 
-Samba 3.0.6 or later.  For more information on these see the manual pages
-("man smb.conf") on the Samba server system.  Note that the cifs vfs,
-unlike the smbfs vfs, does not read the smb.conf on the client system 
-(the few optional settings are passed in on mount via -o parameters instead).  
-Note that Samba 2.2.7 or later includes a fix that allows the CIFS VFS to delete
-open files (required for strict POSIX compliance).  Windows Servers already 
-supported this feature. Samba server does not allow symlinks that refer to files
-outside of the share, so in Samba versions prior to 3.0.6, most symlinks to
-files with absolute paths (ie beginning with slash) such as:
-	 ln -s /mnt/foo bar
-would be forbidden. Samba 3.0.6 server or later includes the ability to create 
-such symlinks safely by converting unsafe symlinks (ie symlinks to server 
-files that are outside of the share) to a samba specific format on the server
-that is ignored by local server applications and non-cifs clients and that will
-not be traversed by the Samba server).  This is opaque to the Linux client
-application using the cifs vfs. Absolute symlinks will work to Samba 3.0.5 or
-later, but only for remote clients using the CIFS Unix extensions, and will
-be invisbile to Windows clients and typically will not affect local
-applications running on the same server as Samba.  
-
-Use instructions:
-================
-Once the CIFS VFS support is built into the kernel or installed as a module 
-(cifs.o), you can use mount syntax like the following to access Samba or Windows 
-servers: 
-
-  mount -t cifs //9.53.216.11/e$ /mnt -o user=myname,pass=mypassword
-
-Before -o the option -v may be specified to make the mount.cifs
-mount helper display the mount steps more verbosely.  
-After -o the following commonly used cifs vfs specific options
-are supported:
-
-  user=<username>
-  pass=<password>
-  domain=<domain name>
-  
-Other cifs mount options are described below.  Use of TCP names (in addition to
-ip addresses) is available if the mount helper (mount.cifs) is installed. If
-you do not trust the server to which are mounted, or if you do not have
-cifs signing enabled (and the physical network is insecure), consider use
-of the standard mount options "noexec" and "nosuid" to reduce the risk of 
-running an altered binary on your local system (downloaded from a hostile server
-or altered by a hostile router).
-
-Although mounting using format corresponding to the CIFS URL specification is
-not possible in mount.cifs yet, it is possible to use an alternate format
-for the server and sharename (which is somewhat similar to NFS style mount
-syntax) instead of the more widely used UNC format (i.e. \\server\share):
-  mount -t cifs tcp_name_of_server:share_name /mnt -o user=myname,pass=mypasswd
-
-When using the mount helper mount.cifs, passwords may be specified via alternate
-mechanisms, instead of specifying it after -o using the normal "pass=" syntax
-on the command line:
-1) By including it in a credential file. Specify credentials=filename as one
-of the mount options. Credential files contain two lines
-        username=someuser
-        password=your_password
-2) By specifying the password in the PASSWD environment variable (similarly
-the user name can be taken from the USER environment variable).
-3) By specifying the password in a file by name via PASSWD_FILE
-4) By specifying the password in a file by file descriptor via PASSWD_FD
-
-If no password is provided, mount.cifs will prompt for password entry
-
-Restrictions
-============
-Servers must support either "pure-TCP" (port 445 TCP/IP CIFS connections) or RFC 
-1001/1002 support for "Netbios-Over-TCP/IP." This is not likely to be a 
-problem as most servers support this.
-
-Valid filenames differ between Windows and Linux.  Windows typically restricts
-filenames which contain certain reserved characters (e.g.the character : 
-which is used to delimit the beginning of a stream name by Windows), while
-Linux allows a slightly wider set of valid characters in filenames. Windows
-servers can remap such characters when an explicit mapping is specified in
-the Server's registry.  Samba starting with version 3.10 will allow such 
-filenames (ie those which contain valid Linux characters, which normally
-would be forbidden for Windows/CIFS semantics) as long as the server is
-configured for Unix Extensions (and the client has not disabled
-/proc/fs/cifs/LinuxExtensionsEnabled).
-  
-
-CIFS VFS Mount Options
-======================
-A partial list of the supported mount options follows:
-  user		The user name to use when trying to establish
-		the CIFS session.
-  password	The user password.  If the mount helper is
-		installed, the user will be prompted for password
-		if not supplied.
-  ip		The ip address of the target server
-  unc		The target server Universal Network Name (export) to 
-		mount.	
-  domain	Set the SMB/CIFS workgroup name prepended to the
-		username during CIFS session establishment
-  forceuid	Set the default uid for inodes to the uid
-		passed in on mount. For mounts to servers
-		which do support the CIFS Unix extensions, such as a
-		properly configured Samba server, the server provides
-		the uid, gid and mode so this parameter should not be
-		specified unless the server and clients uid and gid
-		numbering differ.  If the server and client are in the
-		same domain (e.g. running winbind or nss_ldap) and
-		the server supports the Unix Extensions then the uid
-		and gid can be retrieved from the server (and uid
-		and gid would not have to be specifed on the mount. 
-		For servers which do not support the CIFS Unix
-		extensions, the default uid (and gid) returned on lookup
-		of existing files will be the uid (gid) of the person
-		who executed the mount (root, except when mount.cifs
-		is configured setuid for user mounts) unless the "uid=" 
-		(gid) mount option is specified. Also note that permission
-		checks (authorization checks) on accesses to a file occur
-		at the server, but there are cases in which an administrator
-		may want to restrict at the client as well.  For those
-		servers which do not report a uid/gid owner
-		(such as Windows), permissions can also be checked at the
-		client, and a crude form of client side permission checking 
-		can be enabled by specifying file_mode and dir_mode on 
-		the client.  (default)
-  forcegid	(similar to above but for the groupid instead of uid) (default)
-  noforceuid	Fill in file owner information (uid) by requesting it from
-		the server if possible. With this option, the value given in
-		the uid= option (on mount) will only be used if the server
-		can not support returning uids on inodes.
-  noforcegid	(similar to above but for the group owner, gid, instead of uid)
-  uid		Set the default uid for inodes, and indicate to the
-		cifs kernel driver which local user mounted. If the server
-		supports the unix extensions the default uid is
-		not used to fill in the owner fields of inodes (files)
-		unless the "forceuid" parameter is specified.
-  gid		Set the default gid for inodes (similar to above).
-  file_mode     If CIFS Unix extensions are not supported by the server
-		this overrides the default mode for file inodes.
-  fsc		Enable local disk caching using FS-Cache (off by default). This
-  		option could be useful to improve performance on a slow link,
-		heavily loaded server and/or network where reading from the
-		disk is faster than reading from the server (over the network).
-		This could also impact scalability positively as the
-		number of calls to the server are reduced. However, local
-		caching is not suitable for all workloads for e.g. read-once
-		type workloads. So, you need to consider carefully your
-		workload/scenario before using this option. Currently, local
-		disk caching is functional for CIFS files opened as read-only.
-  dir_mode      If CIFS Unix extensions are not supported by the server 
-		this overrides the default mode for directory inodes.
-  port		attempt to contact the server on this tcp port, before
-		trying the usual ports (port 445, then 139).
-  iocharset     Codepage used to convert local path names to and from
-		Unicode. Unicode is used by default for network path
-		names if the server supports it.  If iocharset is
-		not specified then the nls_default specified
-		during the local client kernel build will be used.
-		If server does not support Unicode, this parameter is
-		unused.
-  rsize		default read size (usually 16K). The client currently
-		can not use rsize larger than CIFSMaxBufSize. CIFSMaxBufSize
-		defaults to 16K and may be changed (from 8K to the maximum
-		kmalloc size allowed by your kernel) at module install time
-		for cifs.ko. Setting CIFSMaxBufSize to a very large value
-		will cause cifs to use more memory and may reduce performance
-		in some cases.  To use rsize greater than 127K (the original
-		cifs protocol maximum) also requires that the server support
-		a new Unix Capability flag (for very large read) which some
-		newer servers (e.g. Samba 3.0.26 or later) do. rsize can be
-		set from a minimum of 2048 to a maximum of 130048 (127K or
-		CIFSMaxBufSize, whichever is smaller)
-  wsize		default write size (default 57344)
-		maximum wsize currently allowed by CIFS is 57344 (fourteen
-		4096 byte pages)
-  actimeo=n	attribute cache timeout in seconds (default 1 second).
-		After this timeout, the cifs client requests fresh attribute
-		information from the server. This option allows to tune the
-		attribute cache timeout to suit the workload needs. Shorter
-		timeouts mean better the cache coherency, but increased number
-		of calls to the server. Longer timeouts mean reduced number
-		of calls to the server at the expense of less stricter cache
-		coherency checks (i.e. incorrect attribute cache for a short
-		period of time).
-  rw		mount the network share read-write (note that the
-		server may still consider the share read-only)
-  ro		mount network share read-only
-  version	used to distinguish different versions of the
-		mount helper utility (not typically needed)
-  sep		if first mount option (after the -o), overrides
-		the comma as the separator between the mount
-		parms. e.g.
-			-o user=myname,password=mypassword,domain=mydom
-		could be passed instead with period as the separator by
-			-o sep=.user=myname.password=mypassword.domain=mydom
-		this might be useful when comma is contained within username
-		or password or domain. This option is less important
-		when the cifs mount helper cifs.mount (version 1.1 or later)
-		is used.
-  nosuid        Do not allow remote executables with the suid bit 
-		program to be executed.  This is only meaningful for mounts
-		to servers such as Samba which support the CIFS Unix Extensions.
-		If you do not trust the servers in your network (your mount
-		targets) it is recommended that you specify this option for
-		greater security.
-  exec		Permit execution of binaries on the mount.
-  noexec	Do not permit execution of binaries on the mount.
-  dev		Recognize block devices on the remote mount.
-  nodev		Do not recognize devices on the remote mount.
-  suid          Allow remote files on this mountpoint with suid enabled to 
-		be executed (default for mounts when executed as root,
-		nosuid is default for user mounts).
-  credentials   Although ignored by the cifs kernel component, it is used by 
-		the mount helper, mount.cifs. When mount.cifs is installed it
-		opens and reads the credential file specified in order  
-		to obtain the userid and password arguments which are passed to
-		the cifs vfs.
-  guest         Although ignored by the kernel component, the mount.cifs
-		mount helper will not prompt the user for a password
-		if guest is specified on the mount options.  If no
-		password is specified a null password will be used.
-  perm          Client does permission checks (vfs_permission check of uid
-		and gid of the file against the mode and desired operation),
-		Note that this is in addition to the normal ACL check on the
-		target machine done by the server software. 
-		Client permission checking is enabled by default.
-  noperm        Client does not do permission checks.  This can expose
-		files on this mount to access by other users on the local
-		client system. It is typically only needed when the server
-		supports the CIFS Unix Extensions but the UIDs/GIDs on the
-		client and server system do not match closely enough to allow
-		access by the user doing the mount, but it may be useful with
-		non CIFS Unix Extension mounts for cases in which the default
-		mode is specified on the mount but is not to be enforced on the
-		client (e.g. perhaps when MultiUserMount is enabled)
-		Note that this does not affect the normal ACL check on the
-		target machine done by the server software (of the server
-		ACL against the user name provided at mount time).
-  serverino	Use server's inode numbers instead of generating automatically
-		incrementing inode numbers on the client.  Although this will
-		make it easier to spot hardlinked files (as they will have
-		the same inode numbers) and inode numbers may be persistent,
-		note that the server does not guarantee that the inode numbers
-		are unique if multiple server side mounts are exported under a
-		single share (since inode numbers on the servers might not
-		be unique if multiple filesystems are mounted under the same
-		shared higher level directory).  Note that some older
-		(e.g. pre-Windows 2000) do not support returning UniqueIDs
-		or the CIFS Unix Extensions equivalent and for those
-		this mount option will have no effect.  Exporting cifs mounts
-		under nfsd requires this mount option on the cifs mount.
-		This is now the default if server supports the 
-		required network operation.
-  noserverino   Client generates inode numbers (rather than using the actual one
-		from the server). These inode numbers will vary after
-		unmount or reboot which can confuse some applications,
-		but not all server filesystems support unique inode
-		numbers.
-  setuids       If the CIFS Unix extensions are negotiated with the server
-		the client will attempt to set the effective uid and gid of
-		the local process on newly created files, directories, and
-		devices (create, mkdir, mknod).  If the CIFS Unix Extensions
-		are not negotiated, for newly created files and directories
-		instead of using the default uid and gid specified on
-		the mount, cache the new file's uid and gid locally which means
-		that the uid for the file can change when the inode is
-	        reloaded (or the user remounts the share).
-  nosetuids     The client will not attempt to set the uid and gid on
-		on newly created files, directories, and devices (create, 
-		mkdir, mknod) which will result in the server setting the
-		uid and gid to the default (usually the server uid of the
-		user who mounted the share).  Letting the server (rather than
-		the client) set the uid and gid is the default. If the CIFS
-		Unix Extensions are not negotiated then the uid and gid for
-		new files will appear to be the uid (gid) of the mounter or the
-		uid (gid) parameter specified on the mount.
-  netbiosname   When mounting to servers via port 139, specifies the RFC1001
-		source name to use to represent the client netbios machine 
-		name when doing the RFC1001 netbios session initialize.
-  direct        Do not do inode data caching on files opened on this mount.
-		This precludes mmapping files on this mount. In some cases
-		with fast networks and little or no caching benefits on the
-		client (e.g. when the application is doing large sequential
-		reads bigger than page size without rereading the same data) 
-		this can provide better performance than the default
-		behavior which caches reads (readahead) and writes 
-		(writebehind) through the local Linux client pagecache 
-		if oplock (caching token) is granted and held. Note that
-		direct allows write operations larger than page size
-		to be sent to the server.
-  strictcache   Use for switching on strict cache mode. In this mode the
-		client read from the cache all the time it has Oplock Level II,
-		otherwise - read from the server. All written data are stored
-		in the cache, but if the client doesn't have Exclusive Oplock,
-		it writes the data to the server.
-  rwpidforward  Forward pid of a process who opened a file to any read or write
-		operation on that file. This prevent applications like WINE
-		from failing on read and write if we use mandatory brlock style.
-  acl   	Allow setfacl and getfacl to manage posix ACLs if server
-		supports them.  (default)
-  noacl 	Do not allow setfacl and getfacl calls on this mount
-  user_xattr    Allow getting and setting user xattrs (those attributes whose
-		name begins with "user." or "os2.") as OS/2 EAs (extended
-		attributes) to the server.  This allows support of the
-		setfattr and getfattr utilities. (default)
-  nouser_xattr  Do not allow getfattr/setfattr to get/set/list xattrs 
-  mapchars      Translate six of the seven reserved characters (not backslash)
-			*?<>|:
-		to the remap range (above 0xF000), which also
-		allows the CIFS client to recognize files created with
-		such characters by Windows's POSIX emulation. This can
-		also be useful when mounting to most versions of Samba
-		(which also forbids creating and opening files
-		whose names contain any of these seven characters).
-		This has no effect if the server does not support
-		Unicode on the wire.
- nomapchars     Do not translate any of these seven characters (default).
- nocase         Request case insensitive path name matching (case
-		sensitive is the default if the server supports it).
-		(mount option "ignorecase" is identical to "nocase")
- posixpaths     If CIFS Unix extensions are supported, attempt to
-		negotiate posix path name support which allows certain
-		characters forbidden in typical CIFS filenames, without
-		requiring remapping. (default)
- noposixpaths   If CIFS Unix extensions are supported, do not request
-		posix path name support (this may cause servers to
-		reject creatingfile with certain reserved characters).
- nounix         Disable the CIFS Unix Extensions for this mount (tree
-		connection). This is rarely needed, but it may be useful
-		in order to turn off multiple settings all at once (ie
-		posix acls, posix locks, posix paths, symlink support
-		and retrieving uids/gids/mode from the server) or to
-		work around a bug in server which implement the Unix
-		Extensions.
- nobrl          Do not send byte range lock requests to the server.
-		This is necessary for certain applications that break
-		with cifs style mandatory byte range locks (and most
-		cifs servers do not yet support requesting advisory
-		byte range locks).
- forcemandatorylock Even if the server supports posix (advisory) byte range
-		locking, send only mandatory lock requests.  For some
-		(presumably rare) applications, originally coded for
-		DOS/Windows, which require Windows style mandatory byte range
-		locking, they may be able to take advantage of this option,
-		forcing the cifs client to only send mandatory locks
-		even if the cifs server would support posix advisory locks.
-		"forcemand" is accepted as a shorter form of this mount
-		option.
- nostrictsync   If this mount option is set, when an application does an
-		fsync call then the cifs client does not send an SMB Flush
-		to the server (to force the server to write all dirty data
-		for this file immediately to disk), although cifs still sends
-		all dirty (cached) file data to the server and waits for the
-		server to respond to the write.  Since SMB Flush can be
-		very slow, and some servers may be reliable enough (to risk
-		delaying slightly flushing the data to disk on the server),
-		turning on this option may be useful to improve performance for
-		applications that fsync too much, at a small risk of server
-		crash.  If this mount option is not set, by default cifs will
-		send an SMB flush request (and wait for a response) on every
-		fsync call.
- nodfs          Disable DFS (global name space support) even if the
-		server claims to support it.  This can help work around
-		a problem with parsing of DFS paths with Samba server
-		versions 3.0.24 and 3.0.25.
- remount        remount the share (often used to change from ro to rw mounts
-	        or vice versa)
- cifsacl        Report mode bits (e.g. on stat) based on the Windows ACL for
-	        the file. (EXPERIMENTAL)
- servern        Specify the server 's netbios name (RFC1001 name) to use
-		when attempting to setup a session to the server. 
-		This is needed for mounting to some older servers (such
-		as OS/2 or Windows 98 and Windows ME) since they do not
-		support a default server name.  A server name can be up
-		to 15 characters long and is usually uppercased.
- sfu            When the CIFS Unix Extensions are not negotiated, attempt to
-		create device files and fifos in a format compatible with
-		Services for Unix (SFU).  In addition retrieve bits 10-12
-		of the mode via the SETFILEBITS extended attribute (as
-		SFU does).  In the future the bottom 9 bits of the
-		mode also will be emulated using queries of the security
-		descriptor (ACL).
- mfsymlinks     Enable support for Minshall+French symlinks
-		(see http://wiki.samba.org/index.php/UNIX_Extensions#Minshall.2BFrench_symlinks)
-		This option is ignored when specified together with the
-		'sfu' option. Minshall+French symlinks are used even if
-		the server supports the CIFS Unix Extensions.
- sign           Must use packet signing (helps avoid unwanted data modification
-		by intermediate systems in the route).  Note that signing
-		does not work with lanman or plaintext authentication.
- seal           Must seal (encrypt) all data on this mounted share before
-		sending on the network.  Requires support for Unix Extensions.
-		Note that this differs from the sign mount option in that it
-		causes encryption of data sent over this mounted share but other
-		shares mounted to the same server are unaffected.
- locallease     This option is rarely needed. Fcntl F_SETLEASE is
-		used by some applications such as Samba and NFSv4 server to
-		check to see whether a file is cacheable.  CIFS has no way
-		to explicitly request a lease, but can check whether a file
-		is cacheable (oplocked).  Unfortunately, even if a file
-		is not oplocked, it could still be cacheable (ie cifs client
-		could grant fcntl leases if no other local processes are using
-		the file) for cases for example such as when the server does not
-		support oplocks and the user is sure that the only updates to
-		the file will be from this client. Specifying this mount option
-		will allow the cifs client to check for leases (only) locally
-		for files which are not oplocked instead of denying leases
-		in that case. (EXPERIMENTAL)
- sec            Security mode.  Allowed values are:
-			none	attempt to connection as a null user (no name)
-			krb5    Use Kerberos version 5 authentication
-			krb5i   Use Kerberos authentication and packet signing
-			ntlm    Use NTLM password hashing (default)
-			ntlmi   Use NTLM password hashing with signing (if
-				/proc/fs/cifs/PacketSigningEnabled on or if
-				server requires signing also can be the default) 
-			ntlmv2  Use NTLMv2 password hashing      
-			ntlmv2i Use NTLMv2 password hashing with packet signing
-			lanman  (if configured in kernel config) use older
-				lanman hash
-hard		Retry file operations if server is not responding
-soft		Limit retries to unresponsive servers (usually only
-		one retry) before returning an error.  (default)
-
-The mount.cifs mount helper also accepts a few mount options before -o
-including:
-
-	-S      take password from stdin (equivalent to setting the environment
-		variable "PASSWD_FD=0"
-	-V      print mount.cifs version
-	-?      display simple usage information
-
-With most 2.6 kernel versions of modutils, the version of the cifs kernel
-module can be displayed via modinfo.
-
-Misc /proc/fs/cifs Flags and Debug Info
-=======================================
-Informational pseudo-files:
-DebugData		Displays information about active CIFS sessions and
-			shares, features enabled as well as the cifs.ko
-			version.
-Stats			Lists summary resource usage information as well as per
-			share statistics, if CONFIG_CIFS_STATS in enabled
-			in the kernel configuration.
-
-Configuration pseudo-files:
-PacketSigningEnabled	If set to one, cifs packet signing is enabled
-			and will be used if the server requires 
-			it.  If set to two, cifs packet signing is
-			required even if the server considers packet
-			signing optional. (default 1)
-SecurityFlags		Flags which control security negotiation and
-			also packet signing. Authentication (may/must)
-			flags (e.g. for NTLM and/or NTLMv2) may be combined with
-			the signing flags.  Specifying two different password
-			hashing mechanisms (as "must use") on the other hand 
-			does not make much sense. Default flags are 
-				0x07007 
-			(NTLM, NTLMv2 and packet signing allowed).  The maximum 
-			allowable flags if you want to allow mounts to servers
-			using weaker password hashes is 0x37037 (lanman,
-			plaintext, ntlm, ntlmv2, signing allowed).  Some
-			SecurityFlags require the corresponding menuconfig
-			options to be enabled (lanman and plaintext require
-			CONFIG_CIFS_WEAK_PW_HASH for example).  Enabling
-			plaintext authentication currently requires also
-			enabling lanman authentication in the security flags
-			because the cifs module only supports sending
-			laintext passwords using the older lanman dialect
-			form of the session setup SMB.  (e.g. for authentication
-			using plain text passwords, set the SecurityFlags
-			to 0x30030):
- 
-			may use packet signing 				0x00001
-			must use packet signing				0x01001
-			may use NTLM (most common password hash)	0x00002
-			must use NTLM					0x02002
-			may use NTLMv2					0x00004
-			must use NTLMv2					0x04004
-			may use Kerberos security			0x00008
-			must use Kerberos				0x08008
-			may use lanman (weak) password hash  		0x00010
-			must use lanman password hash			0x10010
-			may use plaintext passwords    			0x00020
-			must use plaintext passwords			0x20020
-			(reserved for future packet encryption)		0x00040
-
-cifsFYI			If set to non-zero value, additional debug information
-			will be logged to the system error log.  This field
-			contains three flags controlling different classes of
-			debugging entries.  The maximum value it can be set
-			to is 7 which enables all debugging points (default 0).
-			Some debugging statements are not compiled into the
-			cifs kernel unless CONFIG_CIFS_DEBUG2 is enabled in the
-			kernel configuration. cifsFYI may be set to one or
-			nore of the following flags (7 sets them all):
-
-			log cifs informational messages			0x01
-			log return codes from cifs entry points		0x02
-			log slow responses (ie which take longer than 1 second)
-			  CONFIG_CIFS_STATS2 must be enabled in .config	0x04
-				
-				
-traceSMB		If set to one, debug information is logged to the
-			system error log with the start of smb requests
-			and responses (default 0)
-LookupCacheEnable	If set to one, inode information is kept cached
-			for one second improving performance of lookups
-			(default 1)
-OplockEnabled		If set to one, safe distributed caching enabled.
-			(default 1)
-LinuxExtensionsEnabled	If set to one then the client will attempt to
-			use the CIFS "UNIX" extensions which are optional
-			protocol enhancements that allow CIFS servers
-			to return accurate UID/GID information as well
-			as support symbolic links. If you use servers
-			such as Samba that support the CIFS Unix
-			extensions but do not want to use symbolic link
-			support and want to map the uid and gid fields 
-			to values supplied at mount (rather than the 
-			actual values, then set this to zero. (default 1)
-
-These experimental features and tracing can be enabled by changing flags in 
-/proc/fs/cifs (after the cifs module has been installed or built into the 
-kernel, e.g.  insmod cifs).  To enable a feature set it to 1 e.g.  to enable 
-tracing to the kernel message log type: 
-
-	echo 7 > /proc/fs/cifs/cifsFYI
-	
-cifsFYI functions as a bit mask. Setting it to 1 enables additional kernel
-logging of various informational messages.  2 enables logging of non-zero
-SMB return codes while 4 enables logging of requests that take longer
-than one second to complete (except for byte range lock requests). 
-Setting it to 4 requires defining CONFIG_CIFS_STATS2 manually in the
-source code (typically by setting it in the beginning of cifsglob.h),
-and setting it to seven enables all three.  Finally, tracing
-the start of smb requests and responses can be enabled via:
-
-	echo 1 > /proc/fs/cifs/traceSMB
-
-Per share (per client mount) statistics are available in /proc/fs/cifs/Stats
-if the kernel was configured with cifs statistics enabled.  The statistics
-represent the number of successful (ie non-zero return code from the server) 
-SMB responses to some of the more common commands (open, delete, mkdir etc.).
-Also recorded is the total bytes read and bytes written to the server for
-that share.  Note that due to client caching effects this can be less than the
-number of bytes read and written by the application running on the client.
-The statistics for the number of total SMBs and oplock breaks are different in
-that they represent all for that share, not just those for which the server
-returned success.
-	
-Also note that "cat /proc/fs/cifs/DebugData" will display information about
-the active sessions and the shares that are mounted.
-
-Enabling Kerberos (extended security) works but requires version 1.2 or later
-of the helper program cifs.upcall to be present and to be configured in the
-/etc/request-key.conf file.  The cifs.upcall helper program is from the Samba
-project(http://www.samba.org). NTLM and NTLMv2 and LANMAN support do not
-require this helper. Note that NTLMv2 security (which does not require the
-cifs.upcall helper program), instead of using Kerberos, is sufficient for
-some use cases.
-
-DFS support allows transparent redirection to shares in an MS-DFS name space.
-In addition, DFS support for target shares which are specified as UNC
-names which begin with host names (rather than IP addresses) requires
-a user space helper (such as cifs.upcall) to be present in order to
-translate host names to ip address, and the user space helper must also
-be configured in the file /etc/request-key.conf.  Samba, Windows servers and
-many NAS appliances support DFS as a way of constructing a global name
-space to ease network configuration and improve reliability.
-
-To use cifs Kerberos and DFS support, the Linux keyutils package should be
-installed and something like the following lines should be added to the
-/etc/request-key.conf file:
-
-create cifs.spnego * * /usr/local/sbin/cifs.upcall %k
-create dns_resolver * * /usr/local/sbin/cifs.upcall %k
-
-CIFS kernel module parameters
-=============================
-These module parameters can be specified or modified either during the time of
-module loading or during the runtime by using the interface
-	/proc/module/cifs/parameters/<param>
-
-i.e. echo "value" > /sys/module/cifs/parameters/<param>
-
-1. enable_oplocks - Enable or disable oplocks. Oplocks are enabled by default.
-		    [Y/y/1]. To disable use any of [N/n/0].
-
diff --git a/fs/cifs/TODO b/fs/cifs/TODO
deleted file mode 100644
index 355abcdcda98..000000000000
--- a/fs/cifs/TODO
+++ /dev/null
@@ -1,129 +0,0 @@
-Version 1.53 May 20, 2008
-
-A Partial List of Missing Features
-==================================
-
-Contributions are welcome.  There are plenty of opportunities
-for visible, important contributions to this module.  Here
-is a partial list of the known problems and missing features:
-
-a) Support for SecurityDescriptors(Windows/CIFS ACLs) for chmod/chgrp/chown
-so that these operations can be supported to Windows servers
-
-b) Mapping POSIX ACLs (and eventually NFSv4 ACLs) to CIFS
-SecurityDescriptors
-
-c) Better pam/winbind integration (e.g. to handle uid mapping
-better)
-
-d) Cleanup now unneeded SessSetup code in
-fs/cifs/connect.c and add back in NTLMSSP code if any servers
-need it
-
-e) fix NTLMv2 signing when two mounts with different users to same
-server.
-
-f) Directory entry caching relies on a 1 second timer, rather than 
-using FindNotify or equivalent.  - (started)
-
-g) quota support (needs minor kernel change since quota calls
-to make it to network filesystems or deviceless filesystems)
-
-h) investigate sync behavior (including syncpage) and check  
-for proper behavior of intr/nointr
-
-i) improve support for very old servers (OS/2 and Win9x for example)
-Including support for changing the time remotely (utimes command).
-
-j) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
-extra copy in/out of the socket buffers in some cases.
-
-k) Better optimize open (and pathbased setfilesize) to reduce the
-oplock breaks coming from windows srv.  Piggyback identical file
-opens on top of each other by incrementing reference count rather
-than resending (helps reduce server resource utilization and avoid
-spurious oplock breaks).
-
-l) Improve performance of readpages by sending more than one read
-at a time when 8 pages or more are requested. In conjuntion
-add support for async_cifs_readpages.
-
-m) Add support for storing symlink info to Windows servers 
-in the Extended Attribute format their SFU clients would recognize.
-
-n) Finish fcntl D_NOTIFY support so kde and gnome file list windows
-will autorefresh (partially complete by Asser). Needs minor kernel
-vfs change to support removing D_NOTIFY on a file.   
-
-o) Add GUI tool to configure /proc/fs/cifs settings and for display of
-the CIFS statistics (started)
-
-p) implement support for security and trusted categories of xattrs
-(requires minor protocol extension) to enable better support for SELINUX
-
-q) Implement O_DIRECT flag on open (already supported on mount)
-
-r) Create UID mapping facility so server UIDs can be mapped on a per
-mount or a per server basis to client UIDs or nobody if no mapping
-exists.  This is helpful when Unix extensions are negotiated to
-allow better permission checking when UIDs differ on the server
-and client.  Add new protocol request to the CIFS protocol 
-standard for asking the server for the corresponding name of a
-particular uid.
-
-s) Add support for CIFS Unix and also the newer POSIX extensions to the
-server side for Samba 4.
-
-t) In support for OS/2 (LANMAN 1.2 and LANMAN2.1 based SMB servers) 
-need to add ability to set time to server (utimes command)
-
-u) DOS attrs - returned as pseudo-xattr in Samba format (check VFAT and NTFS for this too)
-
-v) mount check for unmatched uids
-
-w) Add support for new vfs entry point for fallocate
-
-x) Fix Samba 3 server to handle Linux kernel aio so dbench with lots of 
-processes can proceed better in parallel (on the server)
-
-y) Fix Samba 3 to handle reads/writes over 127K (and remove the cifs mount
-restriction of wsize max being 127K) 
-
-KNOWN BUGS (updated April 24, 2007)
-====================================
-See http://bugzilla.samba.org - search on product "CifsVFS" for
-current bug list.
-
-1) existing symbolic links (Windows reparse points) are recognized but
-can not be created remotely. They are implemented for Samba and those that
-support the CIFS Unix extensions, although earlier versions of Samba
-overly restrict the pathnames.
-2) follow_link and readdir code does not follow dfs junctions
-but recognizes them
-3) create of new files to FAT partitions on Windows servers can
-succeed but still return access denied (appears to be Windows 
-server not cifs client problem) and has not been reproduced recently.
-NTFS partitions do not have this problem.
-4) Unix/POSIX capabilities are reset after reconnection, and affect
-a few fields in the tree connection but we do do not know which
-superblocks to apply these changes to.  We should probably walk
-the list of superblocks to set these.  Also need to check the
-flags on the second mount to the same share, and see if we
-can do the same trick that NFS does to remount duplicate shares.
-
-Misc testing to do
-==================
-1) check out max path names and max path name components against various server
-types. Try nested symlinks (8 deep). Return max path name in stat -f information
-
-2) Modify file portion of ltp so it can run against a mounted network
-share and run it against cifs vfs in automated fashion.
-
-3) Additional performance testing and optimization using iozone and similar - 
-there are some easy changes that can be done to parallelize sequential writes,
-and when signing is disabled to request larger read sizes (larger than 
-negotiated size) and send larger write sizes to modern servers.
-
-4) More exhaustively test against less common servers.  More testing
-against Windows 9x, Windows ME servers.
-