From: Alan Cox <alan@linux.intel.com>
Date: Thu, 1 Oct 2015 18:28:00 +0000 (+0100)
Subject: simple: support UDATA split away from process space
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=087425100de065efb675a81833274b5ecc639335;p=FUZIX.git

simple: support UDATA split away from process space
---

diff --git a/Kernel/simple.c b/Kernel/simple.c
index 619f206a..07fbe344 100644
--- a/Kernel/simple.c
+++ b/Kernel/simple.c
@@ -71,7 +71,10 @@ int swapout(ptptr p)
 		return ENOMEM;
 	blk = map * SWAP_SIZE;
 	/* Write the app (and possibly the uarea etc..) to disk */
-	swapwrite(SWAPDEV, blk, SWAPTOP - SWAPBASE,
+#ifdef CONFIG_SPLIT_UDATA
+	swapwrite(SWAPDEV, blk, UDATA_SIZE, (uint16_t)&udata, 1);
+#endif
+	swapwrite(SWAPDEV, blk+1, SWAPTOP - SWAPBASE,
 		  SWAPBASE, 1);
 	p->p_page = 0;
 	p->p_page2 = map;
@@ -96,7 +99,10 @@ void swapin(ptptr p, uint16_t map)
 		return;
 	}
 
-	swapread(SWAPDEV, blk, SWAPTOP - SWAPBASE,
+#ifdef CONFIG_SPLIT_UDATA
+	swapread(SWAPDEV, blk, UDATA_SIZE, (uint16_t)&udata, 1);
+#endif
+	swapread(SWAPDEV, blk+1, SWAPTOP - SWAPBASE,
 		 SWAPBASE, 1);
 #ifdef DEBUG
 	kprintf("%x: swapin done %d\n", p, p->p_page);