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DMSDOS 0.9.2.2

--- linux/fs/fat/file.c.orig	Thu Jan  7 18:38:59 1999
+++ linux/fs/fat/file.c	Thu Jan  7 19:17:40 1999
@@ -442,6 +442,10 @@
 	/* Why no return value?  Surely the disk could fail... */
 	if (IS_IMMUTABLE(inode))
 		return /* -EPERM */;
+	if(inode->i_sb->s_flags&MS_RDONLY) {
+		printk("FAT: fat_truncate called though fs is read-only, uhh...\n");
+		return /* -EROFS */;
+	}
 	cluster = SECTOR_SIZE*MSDOS_SB(inode->i_sb)->cluster_size;
 	(void) fat_free(inode,(inode->i_size+(cluster-1))/cluster);
 	MSDOS_I(inode)->i_attrs |= ATTR_ARCH;

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