[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 70b8ed9..4c67135 100644 (file)
--- 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");
                        }