USB: musb: fix the nop registration for OMAP3EVM

[safe/jmp/linux-2.6] / drivers / xen / balloon.c

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8069d52..f5bbd9e 100644 (file)
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -299,10 +299,13 @@ static int decrease_reservation(unsigned long nr_pages)
 
                scrub_page(page);
 
-               ret = HYPERVISOR_update_va_mapping(
-                       (unsigned long)__va(pfn << PAGE_SHIFT),
-                       __pte_ma(0), 0);
-               BUG_ON(ret);
+               if (!PageHighMem(page)) {
+                       ret = HYPERVISOR_update_va_mapping(
+                               (unsigned long)__va(pfn << PAGE_SHIFT),
+                               __pte_ma(0), 0);
+                       BUG_ON(ret);
+                }
+
        }
 
        /* Ensure that ballooned highmem pages don't have kmaps. */
@@ -495,7 +498,7 @@ static ssize_t store_target_kb(struct sys_device *dev,
        if (!capable(CAP_SYS_ADMIN))
                return -EPERM;
 
-       target_bytes = memparse(buf, &endchar);
+       target_bytes = simple_strtoull(buf, &endchar, 0) * 1024;
 
        balloon_set_new_target(target_bytes >> PAGE_SHIFT);
 
@@ -505,8 +508,40 @@ static ssize_t store_target_kb(struct sys_device *dev,
 static SYSDEV_ATTR(target_kb, S_IRUGO | S_IWUSR,
                   show_target_kb, store_target_kb);
 
+
+static ssize_t show_target(struct sys_device *dev, struct sysdev_attribute *attr,
+                             char *buf)
+{
+       return sprintf(buf, "%llu\n",
+                      (unsigned long long)balloon_stats.target_pages
+                      << PAGE_SHIFT);
+}
+
+static ssize_t store_target(struct sys_device *dev,
+                           struct sysdev_attribute *attr,
+                           const char *buf,
+                           size_t count)
+{
+       char *endchar;
+       unsigned long long target_bytes;
+
+       if (!capable(CAP_SYS_ADMIN))
+               return -EPERM;
+
+       target_bytes = memparse(buf, &endchar);
+
+       balloon_set_new_target(target_bytes >> PAGE_SHIFT);
+
+       return count;
+}
+
+static SYSDEV_ATTR(target, S_IRUGO | S_IWUSR,
+                  show_target, store_target);
+
+
 static struct sysdev_attribute *balloon_attrs[] = {
        &attr_target_kb,
+       &attr_target,
 };
 
 static struct attribute *balloon_info_attrs[] = {