lguest: update comments

Also removes a long-unused #define and an extraneous semicolon.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 10 insertions, 7 deletions

diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 948c547b8e9e..f97e625241ad 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