From: Alan Cox <alan@linux.intel.com>
Date: Thu, 14 May 2015 20:26:27 +0000 (+0100)
Subject: nc100: turn on direct I/O and remove legacy EXEC
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=ab1595d9fb68b0364eb4295ff9ca46b1f7ca2085;p=FUZIX.git

nc100: turn on direct I/O and remove legacy EXEC

This speeds things up a ton by removing excess copies. As our I/O subsystem is
PCMCIA SRAM the disk speed is basically CPU speed so the excess caching is not
at all helpful!

Alan
---

diff --git a/Kernel/platform-nc100/config.h b/Kernel/platform-nc100/config.h
index 1f3f2e43..39d00b19 100644
--- a/Kernel/platform-nc100/config.h
+++ b/Kernel/platform-nc100/config.h
@@ -63,7 +63,5 @@
 #define BOOTDEVICE 0x0100	/* Only one possible option */
 #endif
 
-
-/* We need to fix rd_memcpy to handle user pages - or perhaps make the C code
-   figure out the page number and just pass it ?? */
-#define CONFIG_LEGACY_EXEC
\ No newline at end of file
+#define CONFIG_LARGE_IO_DIRECT	/* Definite win as our I/O is as fast as a
+				   memcpy! */