From: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Date: Tue, 28 Mar 2006 09:56:45 +0000 (-0800)
Subject: [PATCH] nvidia-agp: use time_before_eq()
X-Git-Tag: v2.6.17-rc1~222
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05613bdd8647bfc4535b0dcc8f1b95c8b39be394;p=linux-2.6

[PATCH] nvidia-agp: use time_before_eq()

It deals with wrapping correctly and is nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
index 70b8ed9cd1..4c67135c12 100644
--- a/drivers/char/agp/nvidia-agp.c
+++ b/drivers/char/agp/nvidia-agp.c
@@ -11,6 +11,7 @@
 #include <linux/gfp.h>
 #include <linux/page-flags.h>
 #include <linux/mm.h>
+#include <linux/jiffies.h>
 #include "agp.h"
 
 /* NVIDIA registers */
@@ -256,7 +257,7 @@ static void nvidia_tlbflush(struct agp_memory *mem)
 		do {
 			pci_read_config_dword(nvidia_private.dev_1,
 					NVIDIA_1_WBC, &wbc_reg);
-			if ((signed)(end - jiffies) <= 0) {
+			if (time_before_eq(end, jiffies)) {
 				printk(KERN_ERR PFX
 				    "TLB flush took more than 3 seconds.\n");
 			}