Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (32 commits)
  [CIFS] Fix to problem with getattr caused by invalidate simplification patch
  [CIFS] Remove sparse warning
  [CIFS] Update cifs to version 1.72
  cifs: Change key name to cifs.idmap, misc. clean-up
  cifs: Unconditionally copy mount options to superblock info
  cifs: Use kstrndup for cifs_sb->mountdata
  cifs: Simplify handling of submount options in cifs_mount.
  cifs: cifs_parse_mount_options: do not tokenize mount options in-place
  cifs: Add support for mounting Windows 2008 DFS shares
  cifs: Extract DFS referral expansion logic to separate function
  cifs: turn BCC into a static inlined function
  cifs: keep BCC in little-endian format
  cifs: fix some unused variable warnings in id_rb_search
  CIFS: Simplify invalidate part (try #5)
  CIFS: directio read/write cleanups
  consistently use smb_buf_length as be32 for cifs (try 3)
  cifs: Invoke id mapping functions (try torvalds#17 repost)
  cifs: Add idmap key and related data structures and functions (try torvalds#17 repost)
  CIFS: Add launder_page operation (try #3)
  Introduce smb2 mounts as vers=2
  ...

fs/cifs/Kconfig

@@ -7,6 +7,7 @@ config CIFS
 	select CRYPTO_MD5
 	select CRYPTO_HMAC
 	select CRYPTO_ARC4
+	select CRYPTO_DES
 	help
 	  This is the client VFS module for the Common Internet File System
 	  (CIFS) protocol which is the successor to the Server Message Block
@@ -152,16 +153,28 @@ config CIFS_ACL
 	    Allows to fetch CIFS/NTFS ACL from the server.  The DACL blob
 	    is handed over to the application/caller.
 
-config CIFS_EXPERIMENTAL
-	  bool "CIFS Experimental Features (EXPERIMENTAL)"
+config CIFS_SMB2
+	bool "SMB2 network file system support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL && INET && BROKEN
+	select NLS
+	select KEYS
+	select FSCACHE
+	select DNS_RESOLVER
+
+	help
+	  This enables experimental support for the SMB2 (Server Message Block
+	  version 2) protocol. The SMB2 protocol is the successor to the
+	  popular CIFS and SMB network file sharing protocols. SMB2 is the
+	  native file sharing mechanism for recent versions of Windows
+	  operating systems (since Vista).  SMB2 enablement will eventually
+	  allow users better performance, security and features, than would be
+	  possible with cifs. Note that smb2 mount options also are simpler
+	  (compared to cifs) due to protocol improvements.
+
+	  Unless you are a developer or tester, say N.
+
+config CIFS_NFSD_EXPORT
+	  bool "Allow nfsd to export CIFS file system (EXPERIMENTAL)"
 	  depends on CIFS && EXPERIMENTAL
 	  help
-	    Enables cifs features under testing. These features are
-	    experimental and currently include DFS support and directory
-	    change notification ie fcntl(F_DNOTIFY), as well as the upcall
-	    mechanism which will be used for Kerberos session negotiation
-	    and uid remapping.  Some of these features also may depend on
-	    setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
-	    (which is disabled by default). See the file fs/cifs/README
-	    for more details.  If unsure, say N.
-
+	   Allows NFS server to export a CIFS mounted share (nfsd over cifs)

fs/cifs/Makefile

@@ -4,7 +4,7 @@
 obj-$(CONFIG_CIFS) += cifs.o
 
 cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
-	  link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o \
+	  link.o misc.o netmisc.o smbencrypt.o transport.o asn1.o \
 	  cifs_unicode.o nterr.o xattr.o cifsencrypt.o \
 	  readdir.o ioctl.o sess.o export.o
 

fs/cifs/README

@@ -704,18 +704,6 @@ the start of smb requests and responses can be enabled via:
 
 	echo 1 > /proc/fs/cifs/traceSMB
 
-Two other experimental features are under development. To test these
-requires enabling CONFIG_CIFS_EXPERIMENTAL
-
-	cifsacl support needed to retrieve approximated mode bits based on
-		the contents on the CIFS ACL.
-
-	lease support: cifs will check the oplock state before calling into
-	the vfs to see if we can grant a lease on a file.
-
-	DNOTIFY fcntl: needed for support of directory change 
-			    notification and perhaps later for file leases)
-
 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) 

fs/cifs/cifs_debug.c

@@ -63,7 +63,7 @@ void cifs_dump_detail(struct smb_hdr *smb)
 	cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
 		  smb->Command, smb->Status.CifsError,
 		  smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
-	cERROR(1, "smb buf %p len %d", smb, smbCalcSize_LE(smb));
+	cERROR(1, "smb buf %p len %d", smb, smbCalcSize(smb));
 }
 
 

fs/cifs/cifs_fs_sb.h

@@ -58,9 +58,7 @@ struct cifs_sb_info {
 	unsigned int mnt_cifs_flags;
 	int	prepathlen;
 	char   *prepath; /* relative path under the share to mount to */
-#ifdef CONFIG_CIFS_DFS_UPCALL
-	char   *mountdata; /* mount options received at mount time */
-#endif
+	char   *mountdata; /* options received at mount time or via DFS refs */
 	struct backing_dev_info bdi;
 	struct delayed_work prune_tlinks;
 };

fs/cifs/cifs_unicode.h

@@ -82,6 +82,9 @@ int cifs_strtoUCS(__le16 *, const char *, int, const struct nls_table *);
 char *cifs_strndup_from_ucs(const char *src, const int maxlen,
 			    const bool is_unicode,
 			    const struct nls_table *codepage);
+extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
+			const struct nls_table *cp, int mapChars);
+
 #endif
 
 /*