--- make2-4/ipc/shm.c~	Sat Mar 18 10:07:14 2000
+++ make2-4/ipc/shm.c	Sat Mar 18 10:46:04 2000
@@ -518,7 +518,15 @@
 	shm_unlock (inode->i_ino);
 	up (&shm_ids.sem);
 	inode->i_nlink -= 1;
-	d_delete (dent);
+	/*
+	 * If it's a reserved name we have to drop the dentry instead
+	 * of creating a negative dentry
+	 */
+	if (dent->d_name.len == SHM_FMT_LEN &&
+	    memcmp (SHM_FMT, dent->d_name.name, SHM_FMT_LEN - 8) == 0)
+		d_drop (dent);
+	else
+		d_delete (dent);
 	return 0;
 }