--- linux/mm/shmem.c.old	Sun Mar 30 00:51:39 2003
+++ linux/mm/shmem.c	Sun Mar 30 03:23:47 2003
@@ -1630,6 +1630,12 @@
 		if (!strcmp(this_char,"size")) {
 			unsigned long long size;
 			size = memparse(value,&rest);
+			if (*rest == '%') {
+				struct sysinfo si;
+				si_meminfo(&si);
+				size = (si.totalram << PAGE_CACHE_SHIFT) / 100 * size;
+				rest++;
+			}
 			if (*rest)
 				goto bad_val;
 			*blocks = size >> PAGE_CACHE_SHIFT;