Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] list entry can not return null
  turn cifs_setattr into a multiplexor that calls the correct function
  move file time and dos attribute setting logic into new function
  spin off cifs_setattr with unix extensions to its own function
  [CIFS] Code cleanup in old sessionsetup code
  [CIFS] cifs_mkdir and cifs_create should respect the setgid bit on parent dir
  Rename CIFSSMBSetFileTimes to CIFSSMBSetFileInfo and add PID arg
  change CIFSSMBSetTimes to CIFSSMBSetPathInfo
  [CIFS] fix trailing whitespace
  bundle up Unix SET_PATH_INFO args into a struct and change name
  Fix missing braces in cifs_revalidate()
  remove locking around tcpSesAllocCount atomic variable
  [CIFS] properly account for new user= field in SPNEGO upcall string allocation
  [CIFS] remove level of indentation from decode_negTokenInit
  [CIFS] cifs send2 not retrying enough in some cases on full socket
  [CIFS] oid should also be checked against class in cifs asn

14 files changed, 652 insertions, 509 deletions

diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 1f3465201fdf..f5d0083e09fa 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,3 +1,11 @@
+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.
+
 Version 1.53
 ------------
 DFS support added (Microsoft Distributed File System client support needed
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 6bb440b257b0..5fabd2caf93c 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -483,6 +483,7 @@ decode_negTokenInit(unsigned char *security_blob, int length,
 
 	asn1_open(&ctx, security_blob, length);
 
+	/* GSSAPI header */
 	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
 		cFYI(1, ("Error decoding negTokenInit header"));
 		return 0;
@@ -490,153 +491,142 @@ decode_negTokenInit(unsigned char *security_blob, int length,
 		   || (tag != ASN1_EOC)) {
 		cFYI(1, ("cls = %d con = %d tag = %d", cls, con, tag));
 		return 0;
-	} else {
-		/*      remember to free obj->oid */
-		rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
-		if (rc) {
-			if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
-				rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
-				if (rc) {
-					rc = compare_oid(oid, oidlen,
-							 SPNEGO_OID,
-							 SPNEGO_OID_LEN);
-					kfree(oid);
-				}
-			} else
-				rc = 0;
-		}
+	}
 
-		if (!rc) {
-			cFYI(1, ("Error decoding negTokenInit header"));
-			return 0;
-		}
+	/* Check for SPNEGO OID -- remember to free obj->oid */
+	rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
+	if (rc) {
+		if ((tag == ASN1_OJI) && (con == ASN1_PRI) &&
+		    (cls == ASN1_UNI)) {
+			rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
+			if (rc) {
+				rc = compare_oid(oid, oidlen, SPNEGO_OID,
+						 SPNEGO_OID_LEN);
+				kfree(oid);
+			}
+		} else
+			rc = 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
-			   || (tag != ASN1_EOC)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	/* SPNEGO OID not present or garbled -- bail out */
+	if (!rc) {
+		cFYI(1, ("Error decoding negTokenInit header"));
+		return 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
-			   || (tag != ASN1_SEQ)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
+		   || (tag != ASN1_EOC)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding 2nd part of negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
-			   || (tag != ASN1_EOC)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+		   || (tag != ASN1_SEQ)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		if (asn1_header_decode
-		    (&ctx, &sequence_end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding 2nd part of negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
-			   || (tag != ASN1_SEQ)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding 2nd part of negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
+		   || (tag != ASN1_EOC)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		while (!asn1_eoc_decode(&ctx, sequence_end)) {
-			rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
-			if (!rc) {
-				cFYI(1,
-				     ("Error decoding negTokenInit hdr exit2"));
-				return 0;
-			}
-			if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
-				if (asn1_oid_decode(&ctx, end, &oid, &oidlen)) {
-
-					cFYI(1,
-					  ("OID len = %d oid = 0x%lx 0x%lx "
-					   "0x%lx 0x%lx",
-					   oidlen, *oid, *(oid + 1),
-					   *(oid + 2), *(oid + 3)));
-
-					if (compare_oid(oid, oidlen,
-							MSKRB5_OID,
-							MSKRB5_OID_LEN))
-						use_kerberos = true;
-					else if (compare_oid(oid, oidlen,
-							     KRB5_OID,
-							     KRB5_OID_LEN))
-						use_kerberos = true;
-					else if (compare_oid(oid, oidlen,
-							     NTLMSSP_OID,
-							     NTLMSSP_OID_LEN))
-						use_ntlmssp = true;
-
-					kfree(oid);
-				}
-			} else {
-				cFYI(1, ("Should be an oid what is going on?"));
-			}
-		}
+	if (asn1_header_decode
+	    (&ctx, &sequence_end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding 2nd part of negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+		   || (tag != ASN1_SEQ)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit3"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
-			/* tag = 3 indicating mechListMIC */
+	while (!asn1_eoc_decode(&ctx, sequence_end)) {
+		rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
+		if (!rc) {
 			cFYI(1,
-			     ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",
-			      cls, con, tag, end, *end));
+			     ("Error decoding negTokenInit hdr exit2"));
 			return 0;
 		}
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit5"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
-			   || (tag != ASN1_SEQ)) {
-			cFYI(1, ("cls = %d con = %d tag = %d end = %p (%d)",
-				cls, con, tag, end, *end));
+		if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
+			if (asn1_oid_decode(&ctx, end, &oid, &oidlen)) {
+
+				cFYI(1, ("OID len = %d oid = 0x%lx 0x%lx "
+					 "0x%lx 0x%lx", oidlen, *oid,
+					 *(oid + 1), *(oid + 2), *(oid + 3)));
+
+				if (compare_oid(oid, oidlen, MSKRB5_OID,
+						MSKRB5_OID_LEN))
+					use_kerberos = true;
+				else if (compare_oid(oid, oidlen, KRB5_OID,
+						     KRB5_OID_LEN))
+					use_kerberos = true;
+				else if (compare_oid(oid, oidlen, NTLMSSP_OID,
+						     NTLMSSP_OID_LEN))
+					use_ntlmssp = true;
+
+				kfree(oid);
+			}
+		} else {
+			cFYI(1, ("Should be an oid what is going on?"));
 		}
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit 7"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
-			cFYI(1,
-			     ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit9"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_PRI)
-			   || (tag != ASN1_GENSTR)) {
-			cFYI(1,
-			     ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
-		cFYI(1, ("Need to call asn1_octets_decode() function for %s",
-			 ctx.pointer));	/* is this UTF-8 or ASCII? */
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit3"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
+		/* tag = 3 indicating mechListMIC */
+		cFYI(1, ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",
+			 cls, con, tag, end, *end));
+		return 0;
+	}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit5"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+		   || (tag != ASN1_SEQ)) {
+		cFYI(1, ("cls = %d con = %d tag = %d end = %p (%d)",
+			cls, con, tag, end, *end));
+	}
+
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit 7"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
+		cFYI(1, ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",
+			 cls, con, tag, end, *end));
+		return 0;
+	}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit9"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_PRI)
+		   || (tag != ASN1_GENSTR)) {
+		cFYI(1, ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",
+			 cls, con, tag, end, *end));
+		return 0;
 	}
+	cFYI(1, ("Need to call asn1_octets_decode() function for %s",
+		 ctx.pointer));	/* is this UTF-8 or ASCII? */
 
 	if (use_kerberos)
 		*secType = Kerberos;
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 688a2d42153f..69a12aae91d3 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -79,27 +79,25 @@ void cifs_dump_mids(struct TCP_Server_Info *server)
 	spin_lock(&GlobalMid_Lock);
 	list_for_each(tmp, &server->pending_mid_q) {
 		mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
-		if (mid_entry) {
-			cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
-				mid_entry->midState,
-				(int)mid_entry->command,
-				mid_entry->pid,
-				mid_entry->tsk,
-				mid_entry->mid));
+		cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
+			mid_entry->midState,
+			(int)mid_entry->command,
+			mid_entry->pid,
+			mid_entry->tsk,
+			mid_entry->mid));
 #ifdef CONFIG_CIFS_STATS2
-			cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
-				mid_entry->largeBuf,
-				mid_entry->resp_buf,
-				mid_entry->when_received,
-				jiffies));
+		cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
+			mid_entry->largeBuf,
+			mid_entry->resp_buf,
+			mid_entry->when_received,
+			jiffies));
 #endif /* STATS2 */
-			cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
-				  mid_entry->multiEnd));
-			if (mid_entry->resp_buf) {
-				cifs_dump_detail(mid_entry->resp_buf);
-				cifs_dump_mem("existing buf: ",
-					mid_entry->resp_buf, 62);
-			}
+		cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
+			  mid_entry->multiEnd));
+		if (mid_entry->resp_buf) {
+			cifs_dump_detail(mid_entry->resp_buf);
+			cifs_dump_mem("existing buf: ",
+				mid_entry->resp_buf, 62);
 		}
 	}
 	spin_unlock(&GlobalMid_Lock);
@@ -163,16 +161,13 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
 				mid_entry = list_entry(tmp1, struct
 					mid_q_entry,
 					qhead);
-				if (mid_entry) {
-					seq_printf(m,
-							"State: %d com: %d pid:"
-							" %d tsk: %p mid %d\n",
-							mid_entry->midState,
-							(int)mid_entry->command,
-							mid_entry->pid,
-							mid_entry->tsk,
-							mid_entry->mid);
-				}
+				seq_printf(m, "State: %d com: %d pid:"
+						" %d tsk: %p mid %d\n",
+						mid_entry->midState,
+						(int)mid_entry->command,
+						mid_entry->pid,
+						mid_entry->tsk,
+						mid_entry->mid);
 			}
 			spin_unlock(&GlobalMid_Lock);
 		}
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 7013aaff6aed..2434ab0e8791 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -66,8 +66,8 @@ struct key_type cifs_spnego_key_type = {
 	.describe	= user_describe,
 };
 
-#define MAX_VER_STR_LEN   9 /* length of longest version string e.g.
-				strlen(";ver=0xFF") */
+#define MAX_VER_STR_LEN   8 /* length of longest version string e.g.
+				strlen("ver=0xFF") */
 #define MAX_MECH_STR_LEN 13 /* length of longest security mechanism name, eg
 			       in future could have strlen(";sec=ntlmsspi") */
 #define MAX_IPV6_ADDR_LEN 42 /* eg FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/60 */
@@ -81,11 +81,15 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
 	struct key *spnego_key;
 	const char *hostname = server->hostname;
 
-	/* BB: come up with better scheme for determining length */
-	/* length of fields (with semicolons): ver=0xyz ipv4= ipaddress host=
-	   hostname sec=mechanism uid=0x uid */
-	desc_len = MAX_VER_STR_LEN + 5 + MAX_IPV6_ADDR_LEN + 1 + 6 +
-		  strlen(hostname) + MAX_MECH_STR_LEN + 8 + (sizeof(uid_t) * 2);
+	/* length of fields (with semicolons): ver=0xyz ip4=ipaddress
+	   host=hostname sec=mechanism uid=0xFF user=username */
+	desc_len = MAX_VER_STR_LEN +
+		   6 /* len of "host=" */ + strlen(hostname) +
+		   5 /* len of ";ipv4=" */ + MAX_IPV6_ADDR_LEN +
+		   MAX_MECH_STR_LEN +
+		   7 /* len of ";uid=0x" */ + (sizeof(uid_t) * 2) +
+		   6 /* len of ";user=" */ + strlen(sesInfo->userName) + 1;
+
 	spnego_key = ERR_PTR(-ENOMEM);
 	description = kzalloc(desc_len, GFP_KERNEL);
 	if (description == NULL)
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 1ec7076f7b24..e8da4ee761b5 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -930,36 +930,34 @@ static int cifs_oplock_thread(void *dummyarg)
 			schedule_timeout(39*HZ);
 		} else {
 			oplock_item = list_entry(GlobalOplock_Q.next,
-				struct oplock_q_entry, qhead);
-			if (oplock_item) {
-				cFYI(1, ("found oplock item to write out"));
-				pTcon = oplock_item->tcon;
-				inode = oplock_item->pinode;
-				netfid = oplock_item->netfid;
-				spin_unlock(&GlobalMid_Lock);
-				DeleteOplockQEntry(oplock_item);
-				/* can not grab inode sem here since it would
+						struct oplock_q_entry, qhead);
+			cFYI(1, ("found oplock item to write out"));
+			pTcon = oplock_item->tcon;
+			inode = oplock_item->pinode;
+			netfid = oplock_item->netfid;
+			spin_unlock(&GlobalMid_Lock);
+			DeleteOplockQEntry(oplock_item);
+			/* can not grab inode sem here since it would
 				deadlock when oplock received on delete
 				since vfs_unlink holds the i_mutex across
 				the call */
-				/* mutex_lock(&inode->i_mutex);*/
-				if (S_ISREG(inode->i_mode)) {
-					rc =
-					   filemap_fdatawrite(inode->i_mapping);
-					if (CIFS_I(inode)->clientCanCacheRead
-									 == 0) {
-						waitrc = filemap_fdatawait(inode->i_mapping);
-						invalidate_remote_inode(inode);
-					}
-					if (rc == 0)
-						rc = waitrc;
-				} else
-					rc = 0;
-				/* mutex_unlock(&inode->i_mutex);*/
-				if (rc)
-					CIFS_I(inode)->write_behind_rc = rc;
-				cFYI(1, ("Oplock flush inode %p rc %d",
-					inode, rc));
+			/* mutex_lock(&inode->i_mutex);*/
+			if (S_ISREG(inode->i_mode)) {
+				rc = filemap_fdatawrite(inode->i_mapping);
+				if (CIFS_I(inode)->clientCanCacheRead == 0) {
+					waitrc = filemap_fdatawait(
+							      inode->i_mapping);
+					invalidate_remote_inode(inode);
+				}
+				if (rc == 0)
+					rc = waitrc;
+			} else
+				rc = 0;
+			/* mutex_unlock(&inode->i_mutex);*/
+			if (rc)
+				CIFS_I(inode)->write_behind_rc = rc;
+			cFYI(1, ("Oplock flush inode %p rc %d",
+				inode, rc));
 
 				/* releasing stale oplock after recent reconnect
 				of smb session using a now incorrect file
@@ -967,15 +965,13 @@ static int cifs_oplock_thread(void *dummyarg)
 				not bother sending an oplock release if session
 				to server still is disconnected since oplock
 				already released by the server in that case */
-				if (pTcon->tidStatus != CifsNeedReconnect) {
-				    rc = CIFSSMBLock(0, pTcon, netfid,
-					    0 /* len */ , 0 /* offset */, 0,
-					    0, LOCKING_ANDX_OPLOCK_RELEASE,
-					    false /* wait flag */);
-					cFYI(1, ("Oplock release rc = %d", rc));
-				}
-			} else
-				spin_unlock(&GlobalMid_Lock);
+			if (pTcon->tidStatus != CifsNeedReconnect) {
+				rc = CIFSSMBLock(0, pTcon, netfid,
+						0 /* len */ , 0 /* offset */, 0,
+						0, LOCKING_ANDX_OPLOCK_RELEASE,
+						false /* wait flag */);
+				cFYI(1, ("Oplock release rc = %d", rc));
+			}
 			set_current_state(TASK_INTERRUPTIBLE);
 			schedule_timeout(1);  /* yield in case q were corrupt */
 		}
@@ -1001,8 +997,7 @@ static int cifs_dnotify_thread(void *dummyarg)
 		list_for_each(tmp, &GlobalSMBSessionList) {
 			ses = list_entry(tmp, struct cifsSesInfo,
 				cifsSessionList);
-			if (ses && ses->server &&
-			     atomic_read(&ses->server->inFlight))
+			if (ses->server && atomic_read(&ses->server->inFlight))
 				wake_up_all(&ses->server->response_q);
 		}
 		read_unlock(&GlobalSMBSeslock);
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 25a6cbd15529..135c965c4137 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -101,5 +101,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 extern const struct export_operations cifs_export_ops;
 #endif /* EXPERIMENTAL */
 
-#define CIFS_VERSION   "1.53"
+#define CIFS_VERSION   "1.54"
 #endif				/* _CIFSFS_H */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 409abce12732..d2a073edd1b8 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -262,7 +262,7 @@
  */
 #define CIFS_NO_HANDLE        0xFFFF
 
-#define NO_CHANGE_64          cpu_to_le64(0xFFFFFFFFFFFFFFFFULL)
+#define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
 #define NO_CHANGE_32          0xFFFFFFFFUL
 
 /* IPC$ in ASCII */
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index b9f5e935f821..a729d083e6f4 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -172,12 +172,13 @@ extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
 			struct kstatfs *FSData);
 
-extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
+extern int CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
 			const char *fileName, const FILE_BASIC_INFO *data,
 			const struct nls_table *nls_codepage,
 			int remap_special_chars);
-extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
-			const FILE_BASIC_INFO *data, __u16 fid);
+extern int CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+			const FILE_BASIC_INFO *data, __u16 fid,
+			__u32 pid_of_opener);
 #if 0
 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
 			char *fileName, __u16 dos_attributes,
@@ -191,9 +192,20 @@ extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
 extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
 			 __u64 size, __u16 fileHandle, __u32 opener_pid,
 			bool AllocSizeFlag);
-extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon,
-			char *full_path, __u64 mode, __u64 uid,
-			__u64 gid, dev_t dev,
+
+struct cifs_unix_set_info_args {
+	__u64	ctime;
+	__u64	atime;
+	__u64	mtime;
+	__u64	mode;
+	__u64	uid;
+	__u64	gid;
+	dev_t	device;
+};
+
+extern int CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *pTcon,
+			char *fileName,
+			const struct cifs_unix_set_info_args *args,
 			const struct nls_table *nls_codepage,
 			int remap_special_chars);
 
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index c621ffa2ca90..994de7c90474 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -128,8 +128,7 @@ static void mark_open_files_invalid(struct cifsTconInfo *pTcon)
 	write_lock(&GlobalSMBSeslock);
 	list_for_each_safe(tmp, tmp1, &pTcon->openFileList) {
 		open_file = list_entry(tmp, struct cifsFileInfo, tlist);
-		if (open_file)
-			open_file->invalidHandle = true;
+		open_file->invalidHandle = true;
 	}
 	write_unlock(&GlobalSMBSeslock);
 	/* BB Add call to invalidate_inodes(sb) for all superblocks mounted
@@ -4816,8 +4815,8 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
    time and resort to the original setpathinfo level which takes the ancient
    DOS time format with 2 second granularity */
 int
-CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
-		    const FILE_BASIC_INFO *data, __u16 fid)
+CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+		    const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener)
 {
 	struct smb_com_transaction2_sfi_req *pSMB  = NULL;
 	char *data_offset;
@@ -4830,11 +4829,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
 	if (rc)
 		return rc;
 
-	/* At this point there is no need to override the current pid
-	with the pid of the opener, but that could change if we someday
-	use an existing handle (rather than opening one on the fly) */
-	/* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
-	pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/
+	pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+	pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
 
 	params = 6;
 	pSMB->MaxSetupCount = 0;
@@ -4882,9 +4878,9 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
 
 
 int
-CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName,
-		const FILE_BASIC_INFO *data,
-		const struct nls_table *nls_codepage, int remap)
+CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
+		   const char *fileName, const FILE_BASIC_INFO *data,
+		   const struct nls_table *nls_codepage, int remap)
 {
 	TRANSACTION2_SPI_REQ *pSMB = NULL;
 	TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5013,10 +5009,9 @@ SetAttrLgcyRetry:
 #endif /* temporarily unneeded SetAttr legacy function */
 
 int
-CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
-		    char *fileName, __u64 mode, __u64 uid, __u64 gid,
-		    dev_t device, const struct nls_table *nls_codepage,
-		    int remap)
+CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
+		   const struct cifs_unix_set_info_args *args,
+		   const struct nls_table *nls_codepage, int remap)
 {
 	TRANSACTION2_SPI_REQ *pSMB = NULL;
 	TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5025,6 +5020,7 @@ CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
 	int bytes_returned = 0;
 	FILE_UNIX_BASIC_INFO *data_offset;
 	__u16 params, param_offset, offset, count, byte_count;
+	__u64 mode = args->mode;
 
 	cFYI(1, ("In SetUID/GID/Mode"));
 setPermsRetry:
@@ -5080,16 +5076,16 @@ setPermsRetry:
 	set file size and do not want to truncate file size to zero
 	accidently as happened on one Samba server beta by putting
 	zero instead of -1 here */
-	data_offset->EndOfFile = NO_CHANGE_64;
-	data_offset->NumOfBytes = NO_CHANGE_64;
-	data_offset->LastStatusChange = NO_CHANGE_64;
-	data_offset->LastAccessTime = NO_CHANGE_64;
-	data_offset->LastModificationTime = NO_CHANGE_64;
-	data_offset->Uid = cpu_to_le64(uid);
-	data_offset->Gid = cpu_to_le64(gid);
+	data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
+	data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
+	data_offset->LastStatusChange = cpu_to_le64(args->ctime);
+	data_offset->LastAccessTime = cpu_to_le64(args->atime);
+	data_offset->LastModificationTime = cpu_to_le64(args->mtime);
+	data_offset->Uid = cpu_to_le64(args->uid);
+	data_offset->Gid = cpu_to_le64(args->gid);
 	/* better to leave device as zero when it is  */
-	data_offset->DevMajor = cpu_to_le64(MAJOR(device));
-	data_offset->DevMinor = cpu_to_le64(MINOR(device));
+	data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
+	data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
 	data_offset->Permissions = cpu_to_le64(mode);
 
 	if (S_ISREG(mode))
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b51d5777cde6..0711db65afe8 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -151,7 +151,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
 	}
 	list_for_each(tmp, &GlobalTreeConnectionList) {
 		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
-		if ((tcon) && (tcon->ses) && (tcon->ses->server == server))
+		if ((tcon->ses) && (tcon->ses->server == server))
 			tcon->tidStatus = CifsNeedReconnect;
 	}
 	read_unlock(&GlobalSMBSeslock);
@@ -173,14 +173,12 @@ cifs_reconnect(struct TCP_Server_Info *server)
 		mid_entry = list_entry(tmp, struct
 					mid_q_entry,
 					qhead);
-		if (mid_entry) {
-			if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
+		if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
 				/* Mark other intransit requests as needing
 				   retry so we do not immediately mark the
 				   session bad again (ie after we reconnect
 				   below) as they timeout too */
-				mid_entry->midState = MID_RETRY_NEEDED;
-			}
+			mid_entry->midState = MID_RETRY_NEEDED;
 		}
 	}
 	spin_unlock(&GlobalMid_Lock);
@@ -351,11 +349,9 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
 
 	current->flags |= PF_MEMALLOC;
 	cFYI(1, ("Demultiplex PID: %d", task_pid_nr(current)));
-	write_lock(&GlobalSMBSeslock);
-	atomic_inc(&tcpSesAllocCount);
-	length = tcpSesAllocCount.counter;
-	write_unlock(&GlobalSMBSeslock);
-	if (length  > 1)
+
+	length = atomic_inc_return(&tcpSesAllocCount);
+	if (length > 1)
 		mempool_resize(cifs_req_poolp, length + cifs_min_rcv,
 				GFP_KERNEL);
 
@@ -745,14 +741,11 @@ multi_t2_fnd:
 		coming home not much else we can do but free the memory */
 	}
 
-	write_lock(&GlobalSMBSeslock);
-	atomic_dec(&tcpSesAllocCount);
-	length = tcpSesAllocCount.counter;
-
 	/* last chance to mark ses pointers invalid
 	if there are any pointing to this (e.g
 	if a crazy root user tried to kill cifsd
 	kernel thread explicitly this might happen) */
+	write_lock(&GlobalSMBSeslock);
 	list_for_each(tmp, &GlobalSMBSessionList) {
 		ses = list_entry(tmp, struct cifsSesInfo,
 				cifsSessionList);
@@ -763,6 +756,8 @@ multi_t2_fnd:
 
 	kfree(server->hostname);
 	kfree(server);
+
+	length = atomic_dec_return(&tcpSesAllocCount);
 	if (length  > 0)
 		mempool_resize(cifs_req_poolp, length + cifs_min_rcv,
 				GFP_KERNEL);
@@ -3623,97 +3618,91 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 		}
 		first_time = 1;
 	}
-	if (!rc) {
-		pSesInfo->flags = 0;
-		pSesInfo->capabilities = pSesInfo->server->capabilities;
-		if (linuxExtEnabled == 0)
-			pSesInfo->capabilities &= (~CAP_UNIX);
+
+	if (rc)
+		goto ss_err_exit;
+
+	pSesInfo->flags = 0;
+	pSesInfo->capabilities = pSesInfo->server->capabilities;
+	if (linuxExtEnabled == 0)
+		pSesInfo->capabilities &= (~CAP_UNIX);
 	/*	pSesInfo->sequence_number = 0;*/
-		cFYI(1,
-		      ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
-			pSesInfo->server->secMode,
-			pSesInfo->server->capabilities,
-			pSesInfo->server->timeAdj));
-		if (experimEnabled < 2)
-			rc = CIFS_SessSetup(xid, pSesInfo,
-					    first_time, nls_info);
-		else if (extended_security
-				&& (pSesInfo->capabilities
-					& CAP_EXTENDED_SECURITY)
-				&& (pSesInfo->server->secType == NTLMSSP)) {
-			rc = -EOPNOTSUPP;
-		} else if (extended_security
-			   && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
-			   && (pSesInfo->server->secType == RawNTLMSSP)) {
-			cFYI(1, ("NTLMSSP sesssetup"));
-			rc = CIFSNTLMSSPNegotiateSessSetup(xid,
-						pSesInfo,
-						&ntlmv2_flag,
-						nls_info);
-			if (!rc) {
-				if (ntlmv2_flag) {
-					char *v2_response;
-					cFYI(1, ("more secure NTLM ver2 hash"));
-					if (CalcNTLMv2_partial_mac_key(pSesInfo,
-						nls_info)) {
-						rc = -ENOMEM;
-						goto ss_err_exit;
-					} else
-						v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL);
-					if (v2_response) {
-						CalcNTLMv2_response(pSesInfo,
-								   v2_response);
-				/*		if (first_time)
-						  cifs_calculate_ntlmv2_mac_key(
-						   pSesInfo->server->mac_signing_key,
-						   response, ntlm_session_key,*/
-						kfree(v2_response);
+	cFYI(1, ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
+		 pSesInfo->server->secMode,
+		 pSesInfo->server->capabilities,
+		 pSesInfo->server->timeAdj));
+	if (experimEnabled < 2)
+		rc = CIFS_SessSetup(xid, pSesInfo, first_time, nls_info);
+	else if (extended_security
+			&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+			&& (pSesInfo->server->secType == NTLMSSP)) {
+		rc = -EOPNOTSUPP;
+	} else if (extended_security
+			&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+			&& (pSesInfo->server->secType == RawNTLMSSP)) {
+		cFYI(1, ("NTLMSSP sesssetup"));
+		rc = CIFSNTLMSSPNegotiateSessSetup(xid, pSesInfo, &ntlmv2_flag,
+						   nls_info);
+		if (!rc) {
+			if (ntlmv2_flag) {
+				char *v2_response;
+				cFYI(1, ("more secure NTLM ver2 hash"));
+				if (CalcNTLMv2_partial_mac_key(pSesInfo,
+								nls_info)) {
+					rc = -ENOMEM;
+					goto ss_err_exit;
+				} else
+					v2_response = kmalloc(16 + 64 /* blob*/,
+								GFP_KERNEL);
+				if (v2_response) {
+					CalcNTLMv2_response(pSesInfo,
+								v2_response);
+				/*	if (first_time)
+						cifs_calculate_ntlmv2_mac_key */
+					kfree(v2_response);
 					/* BB Put dummy sig in SessSetup PDU? */
-					} else {
-						rc = -ENOMEM;
-						goto ss_err_exit;
-					}
-
 				} else {
-					SMBNTencrypt(pSesInfo->password,
-						pSesInfo->server->cryptKey,
-						ntlm_session_key);
-
-					if (first_time)
-						cifs_calculate_mac_key(
-							&pSesInfo->server->mac_signing_key,
-							ntlm_session_key,
-							pSesInfo->password);
+					rc = -ENOMEM;
+					goto ss_err_exit;
 				}
+
+			} else {
+				SMBNTencrypt(pSesInfo->password,
+					     pSesInfo->server->cryptKey,
+					     ntlm_session_key);
+
+				if (first_time)
+					cifs_calculate_mac_key(
+					     &pSesInfo->server->mac_signing_key,
+					     ntlm_session_key,
+					     pSesInfo->password);
+			}
 			/* for better security the weaker lanman hash not sent
 			   in AuthSessSetup so we no longer calculate it */
 
-				rc = CIFSNTLMSSPAuthSessSetup(xid,
-					pSesInfo,
-					ntlm_session_key,
-					ntlmv2_flag,
-					nls_info);
-			}
-		} else { /* old style NTLM 0.12 session setup */
-			SMBNTencrypt(pSesInfo->password,
-				pSesInfo->server->cryptKey,
-				ntlm_session_key);
+			rc = CIFSNTLMSSPAuthSessSetup(xid, pSesInfo,
+						      ntlm_session_key,
+						      ntlmv2_flag,
+						      nls_info);
+		}
+	} else { /* old style NTLM 0.12 session setup */
+		SMBNTencrypt(pSesInfo->password, pSesInfo->server->cryptKey,
+			     ntlm_session_key);
 
-			if (first_time)