tag 394214 + patch
thanks
Hi,
What about the following patch? It gets page_size during open and stores
it in a global so that sysconf is not called in the fast path. I did not
find any better place than pusb_open (is there something like a
pusb_init routine defined in pusb-linux.c ?).
It builds fine on i386. I didn't have a chance to try building on
another arch so far. I also don't have the hardware to test .
Brice
Index: eciadsl-usermode-0.11/pusb-linux.c
===================================================================
--- eciadsl-usermode-0.11/pusb-linux.c 2006-12-29 15:25:26.000000000 +0100
+++ eciadsl-usermode-0.11/pusb-linux.c 2006-12-29 15:33:20.000000000 +0100
@@ -29,7 +29,6 @@
#include <string.h>
#include "pusb-linux.h"
-#include <asm/page.h>
struct pusb_endpoint_t
{
@@ -217,10 +216,15 @@
return(make_device(fd));
}
+/* save page_size at open */
+static unsigned long page_size;
+
pusb_device_t pusb_open(const char* path)
{
int fd;
+ page_size = sysconf(_SC_PAGESIZE);
+
fd = open(path, O_RDWR);
if (fd < 0)
{
@@ -352,8 +356,8 @@
{
bulk.ep = ep;
bulk.len = size;
- if (bulk.len > PAGE_SIZE)
- bulk.len = PAGE_SIZE;
+ if (bulk.len > page_size)
+ bulk.len = page_size;
bulk.timeout = timeout;
bulk.data = buf;
--
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