18 files changed, 76 insertions, 4 deletions

diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index b1d61d0bdfc..78e4d2a3a68 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -15,6 +15,7 @@
 #include <linux/dcache.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
+#include <linux/slab.h>
 #include <linux/vfs.h>
 #include <linux/fs.h>
 #include "cifsglob.h"
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 8ec7736ce95..310d12f69a9 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -20,6 +20,7 @@
  */
 
 #include <linux/list.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 #include <keys/user-type.h>
 #include <linux/key-type.h>
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index 714a542cbaf..d07676bd76d 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -19,6 +19,7 @@
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 #include <linux/fs.h>
+#include <linux/slab.h>
 #include "cifs_unicode.h"
 #include "cifs_uniupr.h"
 #include "cifspdu.h"
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 7dfe0842a6f..9b716d044bb 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -22,6 +22,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/slab.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
 #include "cifsacl.h"
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 7efe1745494..fbe986430d0 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -20,6 +20,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/slab.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
 #include "cifs_debug.h"
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 5183bc2a191..ded66be6597 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -808,6 +808,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
         .release = cifs_close,
         .fsync = cifs_fsync,
         .flush = cifs_flush,
+        .mmap = cifs_file_mmap,
         .splice_read = generic_file_splice_read,
 #ifdef CONFIG_CIFS_POSIX
         .unlocked_ioctl  = cifs_ioctl,
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 63c89d1d70b..ecf0ffbe2b6 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -18,6 +18,7 @@
  */
 #include <linux/in.h>
 #include <linux/in6.h>
+#include <linux/slab.h>
 #include <linux/slow-work.h>
 #include "cifs_fs_sb.h"
 #include "cifsacl.h"
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 7cc7f83e931..5d3f29fef53 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -30,6 +30,7 @@
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/vfs.h>
+#include <linux/slab.h>
 #include <linux/posix_acl_xattr.h>
 #include <asm/uaccess.h>
 #include "cifspdu.h"
@@ -1430,6 +1431,8 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
         __u32 bytes_sent;
         __u16 byte_count;
 
+        *nbytes = 0;
+
         /* cFYI(1, ("write at %lld %d bytes", offset, count));*/
         if (tcon->ses == NULL)
                 return -ECONNABORTED;
@@ -1512,11 +1515,18 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
         cifs_stats_inc(&tcon->num_writes);
         if (rc) {
                 cFYI(1, ("Send error in write = %d", rc));
-                *nbytes = 0;
         } else {
                 *nbytes = le16_to_cpu(pSMBr->CountHigh);
                 *nbytes = (*nbytes) << 16;
                 *nbytes += le16_to_cpu(pSMBr->Count);
+
+                /*
+                 * Mask off high 16 bits when bytes written as returned by the
+                 * server is greater than bytes requested by the client. Some
+                 * OS/2 servers are known to set incorrect CountHigh values.
+                 */
+                if (*nbytes > count)
+                        *nbytes &= 0xFFFF;
         }
 
         cifs_buf_release(pSMB);
@@ -1605,6 +1615,14 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
                 *nbytes = le16_to_cpu(pSMBr->CountHigh);
                 *nbytes = (*nbytes) << 16;
                 *nbytes += le16_to_cpu(pSMBr->Count);
+
+                /*
+                 * Mask off high 16 bits when bytes written as returned by the
+                 * server is greater than bytes requested by the client. OS/2
+                 * servers are known to set incorrect CountHigh values.
+                 */
+                if (*nbytes > count)
+                        *nbytes &= 0xFFFF;
         }
 
 /*      cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
@@ -1793,8 +1811,21 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
                 }
                 parm_data = (struct cifs_posix_lock *)
                         ((char *)&pSMBr->hdr.Protocol + data_offset);
-                if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK))
+                if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK))
                         pLockData->fl_type = F_UNLCK;
+                else {
+                        if (parm_data->lock_type ==
+                                        __constant_cpu_to_le16(CIFS_RDLCK))
+                                pLockData->fl_type = F_RDLCK;
+                        else if (parm_data->lock_type ==
+                                        __constant_cpu_to_le16(CIFS_WRLCK))
+                                pLockData->fl_type = F_WRLCK;
+
+                        pLockData->fl_start = parm_data->start;
+                        pLockData->fl_end = parm_data->start +
+                                                parm_data->length - 1;
+                        pLockData->fl_pid = parm_data->pid;
+                }
         }
 
 plk_err_exit:
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 45eb6cba793..d9566bf8f91 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -23,6 +23,7 @@
 #include <linux/string.h>
 #include <linux/list.h>
 #include <linux/wait.h>
+#include <linux/slab.h>
 #include <linux/pagemap.h>
 #include <linux/ctype.h>
 #include <linux/utsname.h>
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 87948147d7e..6f8a0e3fb25 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -23,6 +23,7 @@
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
+#include <linux/slab.h>
 #include <keys/user-type.h>
 #include "dns_resolve.h"
 #include "cifsglob.h"
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index ca2ba7a0193..9b11a8f56f3 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -31,6 +31,7 @@
 #include <linux/task_io_accounting_ops.h>
 #include <linux/delay.h>
 #include <linux/mount.h>
+#include <linux/slab.h>
 #include <asm/div64.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
@@ -838,8 +839,32 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock)
 
                 } else {
                         /* if rc == ERR_SHARING_VIOLATION ? */
-                        rc = 0; /* do not change lock type to unlock
-                                   since range in use */
+                        rc = 0;
+
+                        if (lockType & LOCKING_ANDX_SHARED_LOCK) {
+                                pfLock->fl_type = F_WRLCK;
+                        } else {
+                                rc = CIFSSMBLock(xid, tcon, netfid, length,
+                                        pfLock->fl_start, 0, 1,
+                                        lockType | LOCKING_ANDX_SHARED_LOCK,
+                                        0 /* wait flag */);
+                                if (rc == 0) {
+                                        rc = CIFSSMBLock(xid, tcon, netfid,
+                                                length, pfLock->fl_start, 1, 0,
+                                                lockType |
+                                                LOCKING_ANDX_SHARED_LOCK,
+                                                0 /* wait flag */);
+                                        pfLock->fl_type = F_RDLCK;
+                                        if (rc != 0)
+                                                cERROR(1, ("Error unlocking "
+                                                "previously locked range %d "
+                                                "during test of lock", rc));
+                                        rc = 0;
+                                } else {
+                                        pfLock->fl_type = F_WRLCK;
+                                        rc = 0;
+                                }
+                        }
                 }
 
                 FreeXid(xid);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 723daaccbd0..35ec1171621 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -20,6 +20,7 @@
  */
 #include <linux/fs.h>
 #include <linux/stat.h>
+#include <linux/slab.h>
 #include <linux/pagemap.h>
 #include <asm/div64.h>
 #include "cifsfs.h"
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index fc1e0487eae..c1a9d4236a8 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -20,6 +20,7 @@
  */
 #include <linux/fs.h>
 #include <linux/stat.h>
+#include <linux/slab.h>
 #include <linux/namei.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index c343b14ba2d..18e0bc1fb59 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -22,6 +22,7 @@
  */
 #include <linux/fs.h>
 #include <linux/pagemap.h>
+#include <linux/slab.h>
 #include <linux/stat.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index aaa9c1c5a5b..7c3fd7463f4 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -29,6 +29,7 @@
 #include "ntlmssp.h"
 #include "nterr.h"
 #include <linux/utsname.h>
+#include <linux/slab.h>
 #include "cifs_spnego.h"
 
 extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index 93fb09a99c6..192ea51af20 100644
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -24,6 +24,7 @@
 */
 
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/fs.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 07b8e71544e..ad081fe7eb1 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -22,6 +22,7 @@
 
 #include <linux/fs.h>
 #include <linux/list.h>
+#include <linux/gfp.h>
 #include <linux/wait.h>
 #include <linux/net.h>
 #include <linux/delay.h>
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 3e2ef0de120..f555ce077d4 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -21,6 +21,7 @@
 
 #include <linux/fs.h>
 #include <linux/posix_acl_xattr.h>
+#include <linux/slab.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
 #include "cifsglob.h"