12 files changed, 198 insertions, 267 deletions

diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 7b2600b380d7..bc0025cdd1c9 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,3 +1,8 @@
+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
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index ac2b24c192f8..78c1b86d55f6 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -113,5 +113,5 @@ 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   "1.61"
+#define CIFS_VERSION   "1.62"
 #endif                          /* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 4b35f7ec0583..a1c817eb291a 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -149,6 +149,7 @@ struct TCP_Server_Info {
         bool svlocal:1;                 /* local server or remote */
         bool noblocksnd;                /* use blocking sendmsg */
         bool noautotune;                /* do not autotune send buf sizes */
+        bool tcp_nodelay;
         atomic_t inFlight;  /* number of requests on the wire to server */
 #ifdef CONFIG_CIFS_STATS2
         atomic_t inSend; /* requests trying to send */
@@ -204,7 +205,7 @@ struct cifsUidInfo {
 struct cifsSesInfo {
         struct list_head smb_ses_list;
         struct list_head tcon_list;
-        struct semaphore sesSem;
+        struct mutex session_mutex;
 #if 0
         struct cifsUidInfo *uidInfo;    /* pointer to user info */
 #endif
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 3877737f96a6..14d036d8db11 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -415,10 +415,10 @@ struct smb_hdr {
         __u8 WordCount;
 } __attribute__((packed));
 /* given a pointer to an smb_hdr retrieve the value of byte count */
-#define BCC(smb_var) (*(__u16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
-#define BCC_LE(smb_var) (*(__le16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
+#define BCC(smb_var) (*(__u16 *)((char *)(smb_var) + sizeof(struct smb_hdr) + (2 * (smb_var)->WordCount)))
+#define BCC_LE(smb_var) (*(__le16 *)((char *)(smb_var) + sizeof(struct smb_hdr) + (2 * (smb_var)->WordCount)))
 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
-#define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount) + 2)
+#define pByteArea(smb_var) ((unsigned char *)(smb_var) + sizeof(struct smb_hdr) + (2 * (smb_var)->WordCount) + 2)
 
 /*
  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 5646727e33f5..88e2bc44ac58 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -363,13 +363,10 @@ extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
                         __u32 filter, struct file *file, int multishot,
                         const struct nls_table *nls_codepage);
 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
-                        const unsigned char *searchName, char *EAData,
+                        const unsigned char *searchName,
+                        const unsigned char *ea_name, char *EAData,
                         size_t bufsize, const struct nls_table *nls_codepage,
                         int remap_special_chars);
-extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
-                const unsigned char *searchName, const unsigned char *ea_name,
-                unsigned char *ea_value, size_t buf_size,
-                const struct nls_table *nls_codepage, int remap_special_chars);
 extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
                 const char *fileName, const char *ea_name,
                 const void *ea_value, const __u16 ea_value_len,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 941441d3e386..9d17df3e0768 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -170,19 +170,19 @@ cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command)
          * need to prevent multiple threads trying to simultaneously
          * reconnect the same SMB session
          */
-        down(&ses->sesSem);
+        mutex_lock(&ses->session_mutex);
         if (ses->need_reconnect)
                 rc = cifs_setup_session(0, ses, nls_codepage);
 
         /* do we need to reconnect tcon? */
         if (rc || !tcon->need_reconnect) {
-                up(&ses->sesSem);
+                mutex_unlock(&ses->session_mutex);
                 goto out;
         }
 
         mark_open_files_invalid(tcon);
         rc = CIFSTCon(0, ses, tcon->treeName, tcon, nls_codepage);
-        up(&ses->sesSem);
+        mutex_unlock(&ses->session_mutex);
         cFYI(1, ("reconnect tcon rc = %d", rc));
 
         if (rc)
@@ -700,13 +700,13 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
         if (!ses || !ses->server)
                 return -EIO;
 
-        down(&ses->sesSem);
+        mutex_lock(&ses->session_mutex);
         if (ses->need_reconnect)
                 goto session_already_dead; /* no need to send SMBlogoff if uid
                                               already closed due to reconnect */
         rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
         if (rc) {
-                up(&ses->sesSem);
+                mutex_unlock(&ses->session_mutex);
                 return rc;
         }
 
@@ -721,7 +721,7 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
         pSMB->AndXCommand = 0xFF;
         rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
 session_already_dead:
-        up(&ses->sesSem);
+        mutex_unlock(&ses->session_mutex);
 
         /* if session dead then we do not need to do ulogoff,
                 since server closed smb session, no sense reporting
@@ -5269,22 +5269,34 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
         cifs_buf_release(pSMB);
         return rc;
 }
+
 #ifdef CONFIG_CIFS_XATTR
+/*
+ * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common
+ * function used by listxattr and getxattr type calls. When ea_name is set,
+ * it looks for that attribute name and stuffs that value into the EAData
+ * buffer. When ea_name is NULL, it stuffs a list of attribute names into the
+ * buffer. In both cases, the return value is either the length of the
+ * resulting data or a negative error code. If EAData is a NULL pointer then
+ * the data isn't copied to it, but the length is returned.
+ */
 ssize_t
 CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
-                 const unsigned char *searchName,
-                 char *EAData, size_t buf_size,
-                 const struct nls_table *nls_codepage, int remap)
+                const unsigned char *searchName, const unsigned char *ea_name,
+                char *EAData, size_t buf_size,
+                const struct nls_table *nls_codepage, int remap)
 {
                 /* BB assumes one setup word */
         TRANSACTION2_QPI_REQ *pSMB = NULL;
         TRANSACTION2_QPI_RSP *pSMBr = NULL;
         int rc = 0;
         int bytes_returned;
-        int name_len;
+        int list_len;
+        struct fealist *ea_response_data;
         struct fea *temp_fea;
         char *temp_ptr;
-        __u16 params, byte_count;
+        char *end_of_smb;
+        __u16 params, byte_count, data_offset;
 
         cFYI(1, ("In Query All EAs path %s", searchName));
 QAllEAsRetry:
@@ -5294,22 +5306,22 @@ QAllEAsRetry:
                 return rc;
 
         if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
-                name_len =
+                list_len =
                     cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
                                      PATH_MAX, nls_codepage, remap);
-                name_len++;     /* trailing null */
-                name_len *= 2;
+                list_len++;     /* trailing null */
+                list_len *= 2;
         } else {        /* BB improve the check for buffer overruns BB */
-                name_len = strnlen(searchName, PATH_MAX);
-                name_len++;     /* trailing null */
-                strncpy(pSMB->FileName, searchName, name_len);
+                list_len = strnlen(searchName, PATH_MAX);
+                list_len++;     /* trailing null */
+                strncpy(pSMB->FileName, searchName, list_len);
         }
 
-        params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
+        params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */;
         pSMB->TotalDataCount = 0;
         pSMB->MaxParameterCount = cpu_to_le16(2);
         /* BB find exact max SMB PDU from sess structure BB */
-        pSMB->MaxDataCount = cpu_to_le16(4000);
+        pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize);
         pSMB->MaxSetupCount = 0;
         pSMB->Reserved = 0;
         pSMB->Flags = 0;
@@ -5334,237 +5346,117 @@ QAllEAsRetry:
                          (struct smb_hdr *) pSMBr, &bytes_returned, 0);
         if (rc) {
                 cFYI(1, ("Send error in QueryAllEAs = %d", rc));
-        } else {                /* decode response */
-                rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+                goto QAllEAsOut;
+        }
 
-                /* BB also check enough total bytes returned */
-                /* BB we need to improve the validity checking
-                of these trans2 responses */
-                if (rc || (pSMBr->ByteCount < 4))
-                        rc = -EIO;      /* bad smb */
-           /* else if (pFindData){
-                        memcpy((char *) pFindData,
-                               (char *) &pSMBr->hdr.Protocol +
-                               data_offset, kl);
-                }*/ else {
-                        /* check that length of list is not more than bcc */
-                        /* check that each entry does not go beyond length
-                           of list */
-                        /* check that each element of each entry does not
-                           go beyond end of list */
-                        __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
-                        struct fealist *ea_response_data;
-                        rc = 0;
-                        /* validate_trans2_offsets() */
-                        /* BB check if start of smb + data_offset > &bcc+ bcc */
-                        ea_response_data = (struct fealist *)
-                                (((char *) &pSMBr->hdr.Protocol) +
-                                data_offset);
-                        name_len = le32_to_cpu(ea_response_data->list_len);
-                        cFYI(1, ("ea length %d", name_len));
-                        if (name_len <= 8) {
-                        /* returned EA size zeroed at top of function */
-                                cFYI(1, ("empty EA list returned from server"));
-                        } else {
-                                /* account for ea list len */
-                                name_len -= 4;
-                                temp_fea = ea_response_data->list;
-                                temp_ptr = (char *)temp_fea;
-                                while (name_len > 0) {
-                                        __u16 value_len;
-                                        name_len -= 4;
-                                        temp_ptr += 4;
-                                        rc += temp_fea->name_len;
-                                /* account for prefix user. and trailing null */
-                                        rc = rc + 5 + 1;
-                                        if (rc < (int)buf_size) {
-                                                memcpy(EAData, "user.", 5);
-                                                EAData += 5;
-                                                memcpy(EAData, temp_ptr,
-                                                       temp_fea->name_len);
-                                                EAData += temp_fea->name_len;
-                                                /* null terminate name */
-                                                *EAData = 0;
-                                                EAData = EAData + 1;
-                                        } else if (buf_size == 0) {
-                                                /* skip copy - calc size only */
-                                        } else {
-                                                /* stop before overrun buffer */
-                                                rc = -ERANGE;
-                                                break;
-                                        }
-                                        name_len -= temp_fea->name_len;
-                                        temp_ptr += temp_fea->name_len;
-                                        /* account for trailing null */
-                                        name_len--;
-                                        temp_ptr++;
-                                        value_len =
-                                              le16_to_cpu(temp_fea->value_len);
-                                        name_len -= value_len;
-                                        temp_ptr += value_len;
-                                        /* BB check that temp_ptr is still
-                                              within the SMB BB*/
-
-                                        /* no trailing null to account for
-                                           in value len */
-                                        /* go on to next EA */
-                                        temp_fea = (struct fea *)temp_ptr;
-                                }
-                        }
-                }
+
+        /* BB also check enough total bytes returned */
+        /* BB we need to improve the validity checking
+        of these trans2 responses */
+
+        rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+        if (rc || (pSMBr->ByteCount < 4)) {
+                rc = -EIO;      /* bad smb */
+                goto QAllEAsOut;
         }
-        cifs_buf_release(pSMB);
-        if (rc == -EAGAIN)
-                goto QAllEAsRetry;
 
-        return (ssize_t)rc;
-}
+        /* check that length of list is not more than bcc */
+        /* check that each entry does not go beyond length
+           of list */
+        /* check that each element of each entry does not
+           go beyond end of list */
+        /* validate_trans2_offsets() */
+        /* BB check if start of smb + data_offset > &bcc+ bcc */
 
-ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
-                const unsigned char *searchName, const unsigned char *ea_name,
-                unsigned char *ea_value, size_t buf_size,
-                const struct nls_table *nls_codepage, int remap)
-{
-        TRANSACTION2_QPI_REQ *pSMB = NULL;
-        TRANSACTION2_QPI_RSP *pSMBr = NULL;
-        int rc = 0;
-        int bytes_returned;
-        int name_len;
-        struct fea *temp_fea;
-        char *temp_ptr;
-        __u16 params, byte_count;
+        data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+        ea_response_data = (struct fealist *)
+                                (((char *) &pSMBr->hdr.Protocol) + data_offset);
 
-        cFYI(1, ("In Query EA path %s", searchName));
-QEARetry:
-        rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
-                      (void **) &pSMBr);
-        if (rc)
-                return rc;
+        list_len = le32_to_cpu(ea_response_data->list_len);
+        cFYI(1, ("ea length %d", list_len));
+        if (list_len <= 8) {
+                cFYI(1, ("empty EA list returned from server"));
+                goto QAllEAsOut;
+        }
 
-        if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
-                name_len =
-                    cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
-                                     PATH_MAX, nls_codepage, remap);
-                name_len++;     /* trailing null */
-                name_len *= 2;
-        } else {        /* BB improve the check for buffer overruns BB */
-                name_len = strnlen(searchName, PATH_MAX);
-                name_len++;     /* trailing null */
-                strncpy(pSMB->FileName, searchName, name_len);
+        /* make sure list_len doesn't go past end of SMB */
+        end_of_smb = (char *)pByteArea(&pSMBr->hdr) + BCC(&pSMBr->hdr);
+        if ((char *)ea_response_data + list_len > end_of_smb) {
+                cFYI(1, ("EA list appears to go beyond SMB"));
+                rc = -EIO;
+                goto QAllEAsOut;
         }
 
-        params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
-        pSMB->TotalDataCount = 0;
-        pSMB->MaxParameterCount = cpu_to_le16(2);
-        /* BB find exact max SMB PDU from sess structure BB */
-        pSMB->MaxDataCount = cpu_to_le16(4000);
-        pSMB->MaxSetupCount = 0;
-        pSMB->Reserved = 0;
-        pSMB->Flags = 0;
-        pSMB->Timeout = 0;
-        pSMB->Reserved2 = 0;
-        pSMB->ParameterOffset = cpu_to_le16(offsetof(
-                struct smb_com_transaction2_qpi_req, InformationLevel) - 4);
-        pSMB->DataCount = 0;
-        pSMB->DataOffset = 0;
-        pSMB->SetupCount = 1;
-        pSMB->Reserved3 = 0;
-        pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
-        byte_count = params + 1 /* pad */ ;
-        pSMB->TotalParameterCount = cpu_to_le16(params);
-        pSMB->ParameterCount = pSMB->TotalParameterCount;
-        pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS);
-        pSMB->Reserved4 = 0;
-        pSMB->hdr.smb_buf_length += byte_count;
-        pSMB->ByteCount = cpu_to_le16(byte_count);
+        /* account for ea list len */
+        list_len -= 4;
+        temp_fea = ea_response_data->list;
+        temp_ptr = (char *)temp_fea;
+        while (list_len > 0) {
+                unsigned int name_len;
+                __u16 value_len;
+
+                list_len -= 4;
+                temp_ptr += 4;
+                /* make sure we can read name_len and value_len */
+                if (list_len < 0) {
+                        cFYI(1, ("EA entry goes beyond length of list"));
+                        rc = -EIO;
+                        goto QAllEAsOut;
+                }
 
-        rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
-                         (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-        if (rc) {
-                cFYI(1, ("Send error in Query EA = %d", rc));
-        } else {                /* decode response */
-                rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+                name_len = temp_fea->name_len;
+                value_len = le16_to_cpu(temp_fea->value_len);
+                list_len -= name_len + 1 + value_len;
+                if (list_len < 0) {
+                        cFYI(1, ("EA entry goes beyond length of list"));
+                        rc = -EIO;
+                        goto QAllEAsOut;
+                }
 
-                /* BB also check enough total bytes returned */
-                /* BB we need to improve the validity checking
-                of these trans2 responses */
-                if (rc || (pSMBr->ByteCount < 4))
-                        rc = -EIO;      /* bad smb */
-           /* else if (pFindData){
-                        memcpy((char *) pFindData,
-                               (char *) &pSMBr->hdr.Protocol +
-                               data_offset, kl);
-                }*/ else {
-                        /* check that length of list is not more than bcc */
-                        /* check that each entry does not go beyond length
-                           of list */
-                        /* check that each element of each entry does not
-                           go beyond end of list */
-                        __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
-                        struct fealist *ea_response_data;
-                        rc = -ENODATA;
-                        /* validate_trans2_offsets() */
-                        /* BB check if start of smb + data_offset > &bcc+ bcc*/
-                        ea_response_data = (struct fealist *)
-                                (((char *) &pSMBr->hdr.Protocol) +
-                                data_offset);
-                        name_len = le32_to_cpu(ea_response_data->list_len);
-                        cFYI(1, ("ea length %d", name_len));
-                        if (name_len <= 8) {
-                        /* returned EA size zeroed at top of function */
-                                cFYI(1, ("empty EA list returned from server"));
-                        } else {
-                                /* account for ea list len */
-                                name_len -= 4;
-                                temp_fea = ea_response_data->list;
-                                temp_ptr = (char *)temp_fea;
-                                /* loop through checking if we have a matching
-                                name and then return the associated value */
-                                while (name_len > 0) {
-                                        __u16 value_len;
-                                        name_len -= 4;
-                                        temp_ptr += 4;
-                                        value_len =
-                                              le16_to_cpu(temp_fea->value_len);
-                                /* BB validate that value_len falls within SMB,
-                                even though maximum for name_len is 255 */
-                                        if (memcmp(temp_fea->name, ea_name,
-                                                  temp_fea->name_len) == 0) {
-                                                /* found a match */
-                                                rc = value_len;
-                                /* account for prefix user. and trailing null */
-                                                if (rc <= (int)buf_size) {
-                                                        memcpy(ea_value,
-                                                                temp_fea->name+temp_fea->name_len+1,
-                                                                rc);
-                                                        /* ea values, unlike ea
-                                                           names, are not null
-                                                           terminated */
-                                                } else if (buf_size == 0) {
-                                                /* skip copy - calc size only */
-                                                } else {
-                                                /* stop before overrun buffer */
-                                                        rc = -ERANGE;
-                                                }
-                                                break;
-                                        }
-                                        name_len -= temp_fea->name_len;
-                                        temp_ptr += temp_fea->name_len;
-                                        /* account for trailing null */
-                                        name_len--;
-                                        temp_ptr++;
-                                        name_len -= value_len;
-                                        temp_ptr += value_len;
-                                        /* No trailing null to account for in
-                                           value_len.  Go on to next EA */
-                                        temp_fea = (struct fea *)temp_ptr;
+                if (ea_name) {
+                        if (strncmp(ea_name, temp_ptr, name_len) == 0) {
+                                temp_ptr += name_len + 1;
+                                rc = value_len;
+                                if (buf_size == 0)
+                                        goto QAllEAsOut;
+                                if ((size_t)value_len > buf_size) {
+                                        rc = -ERANGE;
+                                        goto QAllEAsOut;
                                 }
+                                memcpy(EAData, temp_ptr, value_len);
+                                goto QAllEAsOut;
+                        }
+                } else {
+                        /* account for prefix user. and trailing null */
+                        rc += (5 + 1 + name_len);
+                        if (rc < (int) buf_size) {
+                                memcpy(EAData, "user.", 5);
+                                EAData += 5;
+                                memcpy(EAData, temp_ptr, name_len);
+                                EAData += name_len;
+                                /* null terminate name */
+                                *EAData = 0;
+                                ++EAData;
+                        } else if (buf_size == 0) {
+                                /* skip copy - calc size only */
+                        } else {
+                                /* stop before overrun buffer */
+                                rc = -ERANGE;
+                                break;
                         }
                 }
+                temp_ptr += name_len + 1 + value_len;
+                temp_fea = (struct fea *)temp_ptr;
         }
+
+        /* didn't find the named attribute */
+        if (ea_name)
+                rc = -ENODATA;
+
+QAllEAsOut:
         cifs_buf_release(pSMB);
         if (rc == -EAGAIN)
-                goto QEARetry;
+                goto QAllEAsRetry;
 
         return (ssize_t)rc;
 }
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 3bbcaa716b3c..45eb6cba793f 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -98,7 +98,7 @@ struct smb_vol {
         bool nostrictsync:1; /* do not force expensive SMBflush on every sync */
         unsigned int rsize;
         unsigned int wsize;
-        unsigned int sockopt;
+        bool sockopt_tcp_nodelay:1;
         unsigned short int port;
         char *prepath;
 };
@@ -1142,9 +1142,11 @@ cifs_parse_mount_options(char *options, const char *devname,
                                         simple_strtoul(value, &value, 0);
                         }
                 } else if (strnicmp(data, "sockopt", 5) == 0) {
-                        if (value && *value) {
-                                vol->sockopt =
-                                        simple_strtoul(value, &value, 0);
+                        if (!value || !*value) {
+                                cERROR(1, ("no socket option specified"));
+                                continue;
+                        } else if (strnicmp(value, "TCP_NODELAY", 11) == 0) {
+                                vol->sockopt_tcp_nodelay = 1;
                         }
                 } else if (strnicmp(data, "netbiosname", 4) == 0) {
                         if (!value || !*value || (*value == ' ')) {
@@ -1514,6 +1516,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
 
         tcp_ses->noblocksnd = volume_info->noblocksnd;
         tcp_ses->noautotune = volume_info->noautotune;
+        tcp_ses->tcp_nodelay = volume_info->sockopt_tcp_nodelay;
         atomic_set(&tcp_ses->inFlight, 0);
         init_waitqueue_head(&tcp_ses->response_q);
         init_waitqueue_head(&tcp_ses->request_q);
@@ -1764,6 +1767,7 @@ static int
 ipv4_connect(struct TCP_Server_Info *server)
 {
         int rc = 0;
+        int val;
         bool connected = false;
         __be16 orig_port = 0;
         struct socket *socket = server->ssocket;
@@ -1845,6 +1849,14 @@ ipv4_connect(struct TCP_Server_Info *server)
                         socket->sk->sk_rcvbuf = 140 * 1024;
         }
 
+        if (server->tcp_nodelay) {
+                val = 1;
+                rc = kernel_setsockopt(socket, SOL_TCP, TCP_NODELAY,
+                                (char *)&val, sizeof(val));
+                if (rc)
+                        cFYI(1, ("set TCP_NODELAY socket option error %d", rc));
+        }
+
          cFYI(1, ("sndbuf %d rcvbuf %d rcvtimeo 0x%lx",
                  socket->sk->sk_sndbuf,
                  socket->sk->sk_rcvbuf, socket->sk->sk_rcvtimeo));
@@ -1916,6 +1928,7 @@ static int
 ipv6_connect(struct TCP_Server_Info *server)
 {
         int rc = 0;
+        int val;
         bool connected = false;
         __be16 orig_port = 0;
         struct socket *socket = server->ssocket;
@@ -1987,6 +2000,15 @@ ipv6_connect(struct TCP_Server_Info *server)
          */
         socket->sk->sk_rcvtimeo = 7 * HZ;
         socket->sk->sk_sndtimeo = 5 * HZ;
+
+        if (server->tcp_nodelay) {
+                val = 1;
+                rc = kernel_setsockopt(socket, SOL_TCP, TCP_NODELAY,
+                                (char *)&val, sizeof(val));
+                if (rc)
+                        cFYI(1, ("set TCP_NODELAY socket option error %d", rc));
+        }
+
         server->ssocket = socket;
 
         return rc;
@@ -2366,13 +2388,13 @@ try_mount_again:
                  */
                 cifs_put_tcp_session(srvTcp);
 
-                down(&pSesInfo->sesSem);
+                mutex_lock(&pSesInfo->session_mutex);
                 if (pSesInfo->need_reconnect) {
                         cFYI(1, ("Session needs reconnect"));
                         rc = cifs_setup_session(xid, pSesInfo,
                                                 cifs_sb->local_nls);
                 }
-                up(&pSesInfo->sesSem);
+                mutex_unlock(&pSesInfo->session_mutex);
         } else if (!rc) {
                 cFYI(1, ("Existing smb sess not found"));
                 pSesInfo = sesInfoAlloc();
@@ -2415,12 +2437,12 @@ try_mount_again:
                 }
                 pSesInfo->linux_uid = volume_info->linux_uid;
                 pSesInfo->overrideSecFlg = volume_info->secFlg;
-                down(&pSesInfo->sesSem);
+                mutex_lock(&pSesInfo->session_mutex);
 
                 /* BB FIXME need to pass vol->secFlgs BB */
                 rc = cifs_setup_session(xid, pSesInfo,
                                         cifs_sb->local_nls);
-                up(&pSesInfo->sesSem);
+                mutex_unlock(&pSesInfo->session_mutex);
         }
 
         /* search for existing tcon to this server share */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index cf18ee765590..8bdbc818164c 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -111,6 +111,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
 
         cifs_i->delete_pending = fattr->cf_flags & CIFS_FATTR_DELETE_PENDING;
 
+        cifs_i->server_eof = fattr->cf_eof;
         /*
          * Can't safely change the file size here if the client is writing to
          * it due to potential races.
@@ -366,7 +367,7 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
         char ea_value[4];
         __u32 mode;
 
-        rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS",
+        rc = CIFSSMBQAllEAs(xid, cifs_sb->tcon, path, "SETFILEBITS",
                             ea_value, 4 /* size of buf */, cifs_sb->local_nls,
                             cifs_sb->mnt_cifs_flags &
                                 CIFS_MOUNT_MAP_SPECIAL_CHR);
@@ -1762,8 +1763,18 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
                                         CIFS_MOUNT_MAP_SPECIAL_CHR);
         }
 
-        if (!rc)
+        if (!rc) {
                 rc = inode_setattr(inode, attrs);
+
+                /* force revalidate when any of these times are set since some
+                   of the fs types (eg ext3, fat) do not have fine enough
+                   time granularity to match protocol, and we do not have a
+                   a way (yet) to query the server fs's time granularity (and
+                   whether it rounds times down).
+                */
+                if (!rc && (attrs->ia_valid & (ATTR_MTIME | ATTR_CTIME)))
+                        cifsInode->time = 0;
+        }
 out:
         kfree(args);
         kfree(full_path);
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index d27d4ec6579b..d1474996a812 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -79,7 +79,7 @@ sesInfoAlloc(void)
                 ++ret_buf->ses_count;
                 INIT_LIST_HEAD(&ret_buf->smb_ses_list);
                 INIT_LIST_HEAD(&ret_buf->tcon_list);
-                init_MUTEX(&ret_buf->sesSem);
+                mutex_init(&ret_buf->session_mutex);
         }
         return ret_buf;
 }
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index f84062f9a985..c343b14ba2d3 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -77,6 +77,11 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
 
         cFYI(1, ("For %s", name->name));
 
+        if (parent->d_op && parent->d_op->d_hash)
+                parent->d_op->d_hash(parent, name);
+        else
+                name->hash = full_name_hash(name->name, name->len);
+
         dentry = d_lookup(parent, name);
         if (dentry) {
                 /* FIXME: check for inode number changes? */
@@ -666,12 +671,11 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst,
                                            min(len, max_len), nlt,
                                            cifs_sb->mnt_cifs_flags &
                                                 CIFS_MOUNT_MAP_SPECIAL_CHR);
+                pqst->len -= nls_nullsize(nlt);
         } else {
                 pqst->name = filename;
                 pqst->len = len;
         }
-        pqst->hash = full_name_hash(pqst->name, pqst->len);
-/*      cFYI(1, ("filldir on %s",pqst->name));  */
         return rc;
 }
 
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 7085a6275c4c..aaa9c1c5a5bd 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -223,9 +223,9 @@ static void unicode_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses,
                 /* null user mount */
                 *bcc_ptr = 0;
                 *(bcc_ptr+1) = 0;
-        } else { /* 300 should be long enough for any conceivable user name */
+        } else {
                 bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->userName,
-                                          300, nls_cp);
+                                          MAX_USERNAME_SIZE, nls_cp);
         }
         bcc_ptr += 2 * bytes_ret;
         bcc_ptr += 2; /* account for null termination */
@@ -246,11 +246,10 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses,
         /* copy user */
         if (ses->userName == NULL) {
                 /* BB what about null user mounts - check that we do this BB */
-        } else { /* 300 should be long enough for any conceivable user name */
-                strncpy(bcc_ptr, ses->userName, 300);
+        } else {
+                strncpy(bcc_ptr, ses->userName, MAX_USERNAME_SIZE);
         }
-        /* BB improve check for overflow */
-        bcc_ptr += strnlen(ses->userName, 300);
+        bcc_ptr += strnlen(ses->userName, MAX_USERNAME_SIZE);
         *bcc_ptr = 0;
         bcc_ptr++; /* account for null termination */
 
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index a75afa3dd9e1..3e2ef0de1209 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -244,7 +244,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
                         /* revalidate/getattr then populate from inode */
                 } /* BB add else when above is implemented */
                 ea_name += 5; /* skip past user. prefix */
-                rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value,
+                rc = CIFSSMBQAllEAs(xid, pTcon, full_path, ea_name, ea_value,
                         buf_size, cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
         } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) {
@@ -252,7 +252,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
                         goto get_ea_exit;
 
                 ea_name += 4; /* skip past os2. prefix */
-                rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value,
+                rc = CIFSSMBQAllEAs(xid, pTcon, full_path, ea_name, ea_value,
                         buf_size, cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
         } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
@@ -364,8 +364,8 @@ ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size)
         /* if proc/fs/cifs/streamstoxattr is set then
                 search server for EAs or streams to
                 returns as xattrs */
-        rc = CIFSSMBQAllEAs(xid, pTcon, full_path, data, buf_size,
-                                cifs_sb->local_nls,
+        rc = CIFSSMBQAllEAs(xid, pTcon, full_path, NULL, data,
+                                buf_size, cifs_sb->local_nls,
                                 cifs_sb->mnt_cifs_flags &
                                         CIFS_MOUNT_MAP_SPECIAL_CHR);