summaryrefslogtreecommitdiff
path: root/drivers/lguest/lguest_user.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/lguest/lguest_user.c')
-rw-r--r--drivers/lguest/lguest_user.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 948c547b8e9..f97e625241a 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -1,8 +1,10 @@
-/*P:200 This contains all the /dev/lguest code, whereby the userspace launcher
- * controls and communicates with the Guest. For example, the first write will
- * tell us the Guest's memory layout and entry point. A read will run the
- * Guest until something happens, such as a signal or the Guest doing a NOTIFY
- * out to the Launcher.
+/*P:200 This contains all the /dev/lguest code, whereby the userspace
+ * launcher controls and communicates with the Guest. For example,
+ * the first write will tell us the Guest's memory layout and entry
+ * point. A read will run the Guest until something happens, such as
+ * a signal or the Guest doing a NOTIFY out to the Launcher. There is
+ * also a way for the Launcher to attach eventfds to particular NOTIFY
+ * values instead of returning from the read() call.
:*/
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
@@ -357,8 +359,8 @@ static int initialize(struct file *file, const unsigned long __user *input)
goto free_eventfds;
/*
- * Initialize the Guest's shadow page tables, using the toplevel
- * address the Launcher gave us. This allocates memory, so can fail.
+ * Initialize the Guest's shadow page tables. This allocates
+ * memory, so can fail.
*/
err = init_guest_pagetable(lg);
if (err)
@@ -516,6 +518,7 @@ static const struct file_operations lguest_fops = {
.read = read,
.llseek = default_llseek,
};
+/*:*/
/*
* This is a textbook example of a "misc" character device. Populate a "struct