From a5e21be5e36df464444ff8081314a44ee7f2e0a7 Mon Sep 17 00:00:00 2001
From: Thomas Bushnell <thomas@gnu.org>
Date: Mon, 15 Mar 1999 00:03:41 +0000
Subject: Sun Mar 14 18:53:01 1999 Thomas Bushnell, BSG <tb@mit.edu>
* device/ds_routines.c (ds_read_done): When touching memory to
mark it dirty, make sure we say "volatile" so the compiler doesn't
optimize it out.
---
device/ds_routines.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'device')
diff --git a/device/ds_routines.c b/device/ds_routines.c
index fc7cde9..e370503 100644
--- a/device/ds_routines.c
+++ b/device/ds_routines.c
@@ -1137,8 +1137,8 @@ boolean_t ds_read_done(ior)
register int c;
for (touch = start_sent; touch < end_sent; touch += PAGE_SIZE) {
- c = *(char *)touch;
- *(char *)touch = c;
+ c = *(volatile char *)touch;
+ *(volatile char *)touch = c;
}
}
--
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