Do not generate warning on ro (read only) cifs mount option

fs/cifs/CHANGES

+Version 0.79
+------------
+Fix mount options for ro (readonly) ,uid, gid and file and directory mode. 
+
+Version 0.78
+------------
+Fix errors displayed on failed mounts to be more understandable.
+Fixed various incorrect or misleading smb to posix error code mappings.
+
 Version 0.77
 ------------
 Fix display of NTFS DFS junctions to display as symlinks.

fs/cifs/cifs_fs_sb.h

@@ -24,5 +24,9 @@ struct cifs_sb_info {
 	struct nls_table *local_nls;
 	unsigned int rsize;
 	unsigned int wsize;
+	uid_t	mnt_uid;
+	gid_t	mnt_gid;
+	mode_t	mnt_file_mode;
+	mode_t	mnt_dir_mode;
 };
 #endif				/* _CIFS_FS_SB_H */

fs/cifs/connect.c

@@ -53,7 +53,7 @@ struct smb_vol {
 	char *UNC;
 	char *UNCip;
 	uid_t linux_uid;
-	uid_t linux_gid;
+	gid_t linux_gid;
 	mode_t file_mode;
 	mode_t dir_mode;
 	int rw;
@@ -351,6 +351,10 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
 	memset(vol,0,sizeof(struct smb_vol));
 	vol->linux_uid = current->uid;	/* current->euid instead? */
 	vol->linux_gid = current->gid;
+	vol->dir_mode = S_IRWXUGO;
+	/* 2767 perms indicate mandatory locking support */
+	vol->file_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP);
+
 	vol->rw = TRUE;
 
 	if (!options)
@@ -466,6 +470,8 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
 			/* ignore */
 		} else if (strnicmp(data, "rw", 2) == 0) {
 			vol->rw = TRUE;
+		} else if (strnicmp(data, "ro", 2) == 0) {
+			vol->rw = FALSE;
 		} else
 			printk(KERN_WARNING "CIFS: Unknown mount option %s\n",data);
 	}
@@ -929,8 +935,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 			cifs_sb->rsize = PAGE_CACHE_SIZE;
 			cERROR(1,("Attempt to set readsize for mount to less than one page (4096)"));
 		}
-
-
+		cifs_sb->mnt_uid = volume_info.linux_uid;
+		cifs_sb->mnt_gid = volume_info.linux_gid;
+		cifs_sb->mnt_file_mode = volume_info.file_mode;
+		cifs_sb->mnt_dir_mode = volume_info.dir_mode;
+		cFYI(1,("file mode: 0x%x  dir mode: 0x%x",cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
 		tcon =
 		    find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
 			     volume_info.username);

fs/cifs/file.c

@@ -877,6 +877,8 @@ fill_in_inode(struct inode *tmp_inode,
 	      FILE_DIRECTORY_INFO * pfindData, int *pobject_type)
 {
 	struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
+	struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
+
 	pfindData->ExtFileAttributes =
 	    le32_to_cpu(pfindData->ExtFileAttributes);
 	pfindData->AllocationSize = le64_to_cpu(pfindData->AllocationSize);
@@ -894,7 +896,13 @@ fill_in_inode(struct inode *tmp_inode,
 	    cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
 	/* treat dos attribute of read-only as read-only mode bit e.g. 555? */
 	/* 2767 perms - indicate mandatory locking */
-	tmp_inode->i_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP);
+		/* BB fill in uid and gid here? with help from winbind? 
+			or retrieve from NTFS stream extended attribute */
+	tmp_inode->i_uid = cifs_sb->mnt_uid;
+	tmp_inode->i_gid = cifs_sb->mnt_gid;
+	/* set default mode. will override for dirs below */
+	tmp_inode->i_mode = cifs_sb->mnt_file_mode;
+
 	cFYI(0,
 	     ("CIFS FFIRST: Attributes came in as 0x%x",
 	      pfindData->ExtFileAttributes));
@@ -905,7 +913,7 @@ fill_in_inode(struct inode *tmp_inode,
 	} else if (pfindData->ExtFileAttributes & ATTR_DIRECTORY) {
 		*pobject_type = DT_DIR;
 		/* override default perms since we do not lock dirs */
-		tmp_inode->i_mode = S_IRWXUGO;
+		tmp_inode->i_mode = cifs_sb->mnt_dir_mode;
 		tmp_inode->i_mode |= S_IFDIR;
 	} else {
 		*pobject_type = DT_REG;

fs/cifs/inode.c

@@ -224,16 +224,19 @@ cifs_get_inode_info(struct inode **pinode,
 		    cifs_NTtimeToUnix(le64_to_cpu(findData.LastWriteTime));
 		inode->i_ctime =
 		    cifs_NTtimeToUnix(le64_to_cpu(findData.ChangeTime));
-		inode->i_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP);	/* 2767 perms indicate mandatory locking - will override for dirs later */
 		cFYI(0,
 		     (" Attributes came in as 0x%x ", findData.Attributes));
-		if (findData.Attributes & ATTR_REPARSE) {	
-   /* Can IFLNK be set as it basically is on windows with IFREG or IFDIR? */
+
+		/* set default mode. will override for dirs below */
+		inode->i_mode = cifs_sb->mnt_file_mode;
+
+		if (findData.Attributes & ATTR_REPARSE) {
+	/* Can IFLNK be set as it basically is on windows with IFREG or IFDIR? */
 			inode->i_mode |= S_IFLNK;
 		} else if (findData.Attributes & ATTR_DIRECTORY) {
-   /* override default perms since we do not do byte range locking on dirs */
-			inode->i_mode = S_IRWXUGO;	
-            inode->i_mode |= S_IFDIR;
+	/* override default perms since we do not do byte range locking on dirs */
+			inode->i_mode = cifs_sb->mnt_dir_mode;
+			inode->i_mode |= S_IFDIR;
 		} else {
 			inode->i_mode |= S_IFREG;
 			/* treat the dos attribute of read-only as read-only mode e.g. 555 */
@@ -250,8 +253,11 @@ cifs_get_inode_info(struct inode **pinode,
 		      (unsigned long) inode->i_size, inode->i_blocks));
 		inode->i_nlink = le32_to_cpu(findData.NumberOfLinks);
 
-		/* BB fill in uid and gid here? with help from winbind? */
-
+		/* BB fill in uid and gid here? with help from winbind? 
+			or retrieve from NTFS stream extended attribute */
+		inode->i_uid = cifs_sb->mnt_uid;
+		inode->i_gid = cifs_sb->mnt_gid;
+		
 		if (S_ISREG(inode->i_mode)) {
 			cFYI(1, (" File inode "));
 			inode->i_op = &cifs_file_inode_ops;