[CIFS] CIFS writepage improvements - eliminate double copy

Signed-off-by: Steve French (sfrench@us.ibm.com)

1 files changed, 17 insertions, 4 deletions

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index dde2d251fc3d..ca74c1151be9 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -791,9 +791,8 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
 
         pTcon = cifs_sb->tcon;
 
-        /* cFYI(1,
-           (" write %d bytes to offset %lld of %s", write_size,
-           *poffset, file->f_dentry->d_name.name)); */
+        cFYI(1,(" write %d bytes to offset %lld of %s", write_size,
+           *poffset, file->f_dentry->d_name.name)); /* BB removeme BB */
 
         if (file->private_data == NULL)
                 return -EBADF;
@@ -846,7 +845,21 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
                                 if (rc != 0)
                                         break;
                         }
-
+#ifdef CIFS_EXPERIMENTAL
+                        /* BB FIXME We can not sign across two buffers yet */
+                        cERROR(1,("checking signing")); /* BB removeme BB */
+                        if(pTcon->ses->server->secMode & 
+                           (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED) == 0)
+                                rc = CIFSSMBWrite2(xid, pTcon,
+                                                open_file->netfid,
+                                                min_t(const int, cifs_sb->wsize,
+                                                    write_size - total_written),
+                                                *poffset, &bytes_written,
+                                                write_data + total_written, 
+                                                long_op);
+                        } else
+                        /* BB FIXME fixup indentation of line below */
+#endif                  
                         rc = CIFSSMBWrite(xid, pTcon,
                                  open_file->netfid,
                                  min_t(const int, cifs_sb->wsize,