[PATCH] 2.5.40: lkcd (2/9): dump notifier

Matt D. Robinson (yakker@aparity.com)
Fri, 4 Oct 2002 16:03:36 -0700


Dump notification list additions.

diff -urN -X /home/bharata/dontdiff linux-2.5.40/kernel/sys.c linux-2.5.40+lkcd/kernel/sys.c
--- linux-2.5.40/kernel/sys.c Tue Oct 1 12:36:17 2002
+++ linux-2.5.40+lkcd/kernel/sys.c Thu Oct 3 07:19:06 2002
@@ -20,6 +20,7 @@
#include <linux/device.h>
#include <linux/times.h>
#include <linux/security.h>
+#include <linux/dump.h>

#include <asm/uaccess.h>
#include <asm/io.h>
@@ -76,6 +77,7 @@
*/

static struct notifier_block *reboot_notifier_list;
+struct notifier_block *dump_notifier_list;
rwlock_t notifier_lock = RW_LOCK_UNLOCKED;

/**
@@ -194,6 +196,37 @@
return notifier_chain_unregister(&reboot_notifier_list, nb);
}

+/**
+ * register_dump_notifier - Register function to be called at dump time
+ * @nb: Info about notifier function to be called
+ *
+ * Registers a function with the list of functions
+ * to be called at dump time.
+ *
+ * Currently always returns zero, as notifier_chain_register
+ * always returns zero.
+ */
+
+int register_dump_notifier(struct notifier_block * nb)
+{
+ return notifier_chain_register(&dump_notifier_list, nb);
+}
+
+/**
+ * unregister_dump_notifier - Unregister previously registered dump notifier
+ * @nb: Hook to be unregistered
+ *
+ * Unregisters a previously registered dump
+ * notifier function.
+ *
+ * Returns zero on success, or %-ENOENT on failure.
+ */
+
+int unregister_dump_notifier(struct notifier_block * nb)
+{
+ return notifier_chain_unregister(&dump_notifier_list, nb);
+}
+
asmlinkage long sys_ni_syscall(void)
{
return -ENOSYS;
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/