Disabled timeout for kernel versions < 2.6.16.

Author: jtsylve

src/lime.h

@@ -55,6 +55,10 @@
 #define DBG(fmt, args...) do {} while(0)
 #endif
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+#define LIME_SUPPORTS_TIMING
+#endif
+
 //structures
 
 typedef struct {

src/main.c

@@ -50,15 +50,18 @@ char * path = 0;
 int dio = 0;
 int port = 0;
 int localhostonly = 0;
-long timeout = 1000;
 
 extern struct resource iomem_resource;
 
 module_param(path, charp, S_IRUGO);
 module_param(dio, int, S_IRUGO);
 module_param(format, charp, S_IRUGO);
 module_param(localhostonly, int, S_IRUGO);
+
+#ifdef LIME_SUPPORTS_TIMING
+long timeout = 1000;
 module_param(timeout, long, S_IRUGO);
+#endif
 
 #define RETRY_IF_INTURRUPTED(f) ({ \
     ssize_t err; \
@@ -84,6 +87,10 @@ int init_module (void)
     DBG("  FORMAT: %s", format);
     DBG("  LOCALHOSTONLY: %u", localhostonly);
 
+#ifdef LIME_SUPPORTS_TIMING
+    DBG("  TIMEOUT: %lu", timeout);
+#endif
+
     memset(zero_page, 0, sizeof(zero_page));
 
     if (!strcmp(format, "raw")) mode = LIME_MODE_RAW;
@@ -188,12 +195,17 @@ static void write_range(struct resource * res) {
     void * v;
 
     ssize_t s;
+
+#ifdef LIME_SUPPORTS_TIMING
     ktime_t start,end;
+#endif
 
     DBG("Writing range %llx - %llx.", res->start, res->end);
 
     for (i = res->start; i <= res->end; i += is) {
+#ifdef LIME_SUPPORTS_TIMING
         start = ktime_get_real();
+#endif
 
         p = pfn_to_page((i) >> PAGE_SHIFT);
 
@@ -218,13 +230,16 @@ static void write_range(struct resource * res) {
             }
         }
 
+#ifdef LIME_SUPPORTS_TIMING
         end = ktime_get_real();
 
         if (timeout > 0 && ktime_to_ms(ktime_sub(end, start)) > timeout) {
             DBG("Reading is too slow.  Skipping Range...");
             write_padding(res->end - i + 1 - is);
             break;
         }
+#endif
+        
     }
 }