[CIFS] New CIFS POSIX mkdir performance improvement (part 2)

Fix incorrect parsing of return data

Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index a7d3d8e..14de58f 100644 (file)
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1008,9 +1008,12 @@ PsxCreat:
        if(cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction)
                *pOplock |= CIFS_CREATE_ACTION;
        /* check to make sure response data is there */
-       if(psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC)
-               pRetData->Type = -1; /* unknown */              
-       else {
+       if(psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) {
+               pRetData->Type = -1; /* unknown */
+#ifdef CONFIG_CIFS_DEBUG2
+               cFYI(1,("unknown type"));
+#endif
+       } else {
                if(pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) 
                                        + sizeof(FILE_UNIX_BASIC_INFO)) {
                        cERROR(1,("Open response data too small"));
@@ -1018,7 +1021,7 @@ PsxCreat:
                        goto psx_create_err;
                }
                memcpy((char *) pRetData, 
-                       (char *)&psx_rsp + sizeof(OPEN_PSX_RSP),
+                       (char *)psx_rsp + sizeof(OPEN_PSX_RSP),
                        sizeof (FILE_UNIX_BASIC_INFO));
        }
                        

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 9b7e0db..f74f37c 100644 (file)
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -796,6 +796,9 @@ static void posix_fill_in_inode(struct inode *tmp_inode,
                cFYI(1,("unknown inode type %d",type)); 
        }
 
+#ifdef CONFIG_CIFS_DEBUG2
+       cFYI(1,("object type: %d", type));
+#endif
        tmp_inode->i_uid = le64_to_cpu(pData->Uid);
        tmp_inode->i_gid = le64_to_cpu(pData->Gid);
        tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks);
@@ -903,6 +906,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
                        cFYI(1, ("posix mkdir returned 0x%x", rc));
                        d_drop(direntry);
                } else {
+                       int obj_type;
                        if (pInfo->Type == -1) /* no return info - go query */
                                goto mkdir_get_info; 
 /*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need to set uid/gid */
@@ -911,19 +915,36 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
                                direntry->d_op = &cifs_ci_dentry_ops;
                        else
                                direntry->d_op = &cifs_dentry_ops;
+
+                       newinode = new_inode(inode->i_sb);
+                       if (newinode == NULL)
+                               goto mkdir_get_info;
+                       /* Is an i_ino of zero legal? */
+                       /* Are there sanity checks we can use to ensure that
+                          the server is really filling in that field? */
+                       if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+                               newinode->i_ino =
+                                       (unsigned long)pInfo->UniqueId;
+                       } /* note ino incremented to unique num in new_inode */
+                       if(inode->i_sb->s_flags & MS_NOATIME)
+                               newinode->i_flags |= S_NOATIME | S_NOCMTIME;
+                       newinode->i_nlink = 2;
+
+                       insert_inode_hash(newinode);
                        d_instantiate(direntry, newinode);
-                       if (direntry->d_inode) {
-                               int obj_type;
-                               direntry->d_inode->i_nlink = 2;
-                               /* already checked in POSIXCreate whether
-                               frame was long enough */
-                               posix_fill_in_inode(direntry->d_inode,
+
+                       /* we already checked in POSIXCreate whether
+                          frame was long enough */
+                       posix_fill_in_inode(direntry->d_inode,
                                        pInfo, &obj_type, 1 /* NewInode */);
-                               /* could double check that we actually
-                                * created what we thought we did ie
-                                * a directory
-                                */     
-                       }
+#ifdef CONFIG_CIFS_DEBUG2
+                       cFYI(1,("instantiated dentry %p %s to inode %p",
+                               direntry, direntry->d_name.name, newinode));
+
+                       if(newinode->i_nlink != 2)
+                               cFYI(1,("unexpected number of links %d",
+                                       newinode->i_nlink));
+#endif
                }
                kfree(pInfo);
                goto mkdir_out;