The patch titled
notifiers: sys: move reboot notifiers into reboot.h
has been added to the -mm tree. Its filename is
notifiers-sys-move-reboot-notifiers-into-rebooth.patch
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------------------------------------------------------
Subject: notifiers: sys: move reboot notifiers into reboot.h
From: Amerigo Wang <amwang@xxxxxxxxxx>
It is not necessary to share the same notifier.h.
This patch already moves register_reboot_notifier()
and unregister_reboot_notifier() from kernel/notifier.c to
kernel/sys.c.
Signed-off-by: WANG Cong <amwang@xxxxxxxxxx>
Cc: David Miller <davem@xxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/notifier.h | 5 +----
include/linux/reboot.h | 5 +++++
kernel/notifier.c | 31 -------------------------------
kernel/sys.c | 32 +++++++++++++++++++++++++++++++-
4 files changed, 37 insertions(+), 36 deletions(-)
diff -puN include/linux/notifier.h~notifiers-sys-move-reboot-notifiers-into-rebooth include/linux/notifier.h
--- a/include/linux/notifier.h~notifiers-sys-move-reboot-notifiers-into-rebooth
+++ a/include/linux/notifier.h
@@ -189,10 +189,7 @@ static inline int notifier_to_errno(int
/* netdevice notifiers are defined in include/linux/netdevice.h */
-#define SYS_DOWN 0x0001 /* Notify of system down */
-#define SYS_RESTART SYS_DOWN
-#define SYS_HALT 0x0002 /* Notify of system halt */
-#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
+/* reboot notifiers are defined in include/linux/reboot.h. */
#define NETLINK_URELEASE 0x0001 /* Unicast netlink socket released */
diff -puN include/linux/reboot.h~notifiers-sys-move-reboot-notifiers-into-rebooth include/linux/reboot.h
--- a/include/linux/reboot.h~notifiers-sys-move-reboot-notifiers-into-rebooth
+++ a/include/linux/reboot.h
@@ -39,6 +39,11 @@
#include <linux/notifier.h>
+#define SYS_DOWN 0x0001 /* Notify of system down */
+#define SYS_RESTART SYS_DOWN
+#define SYS_HALT 0x0002 /* Notify of system halt */
+#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
+
extern int register_reboot_notifier(struct notifier_block *);
extern int unregister_reboot_notifier(struct notifier_block *);
diff -puN kernel/notifier.c~notifiers-sys-move-reboot-notifiers-into-rebooth kernel/notifier.c
--- a/kernel/notifier.c~notifiers-sys-move-reboot-notifiers-into-rebooth
+++ a/kernel/notifier.c
@@ -525,37 +525,6 @@ void srcu_init_notifier_head(struct srcu
}
EXPORT_SYMBOL_GPL(srcu_init_notifier_head);
-/**
- * register_reboot_notifier - Register function to be called at reboot time
- * @nb: Info about notifier function to be called
- *
- * Registers a function with the list of functions
- * to be called at reboot time.
- *
- * Currently always returns zero, as blocking_notifier_chain_register()
- * always returns zero.
- */
-int register_reboot_notifier(struct notifier_block *nb)
-{
- return blocking_notifier_chain_register(&reboot_notifier_list, nb);
-}
-EXPORT_SYMBOL(register_reboot_notifier);
-
-/**
- * unregister_reboot_notifier - Unregister previously registered reboot notifier
- * @nb: Hook to be unregistered
- *
- * Unregisters a previously registered reboot
- * notifier function.
- *
- * Returns zero on success, or %-ENOENT on failure.
- */
-int unregister_reboot_notifier(struct notifier_block *nb)
-{
- return blocking_notifier_chain_unregister(&reboot_notifier_list, nb);
-}
-EXPORT_SYMBOL(unregister_reboot_notifier);
-
static ATOMIC_NOTIFIER_HEAD(die_chain);
int notrace __kprobes notify_die(enum die_val val, const char *str,
diff -puN kernel/sys.c~notifiers-sys-move-reboot-notifiers-into-rebooth kernel/sys.c
--- a/kernel/sys.c~notifiers-sys-move-reboot-notifiers-into-rebooth
+++ a/kernel/sys.c
@@ -8,7 +8,6 @@
#include <linux/mm.h>
#include <linux/utsname.h>
#include <linux/mman.h>
-#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/prctl.h>
#include <linux/highuid.h>
@@ -320,6 +319,37 @@ void kernel_restart_prepare(char *cmd)
}
/**
+ * register_reboot_notifier - Register function to be called at reboot time
+ * @nb: Info about notifier function to be called
+ *
+ * Registers a function with the list of functions
+ * to be called at reboot time.
+ *
+ * Currently always returns zero, as blocking_notifier_chain_register()
+ * always returns zero.
+ */
+int register_reboot_notifier(struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(&reboot_notifier_list, nb);
+}
+EXPORT_SYMBOL(register_reboot_notifier);
+
+/**
+ * unregister_reboot_notifier - Unregister previously registered reboot notifier
+ * @nb: Hook to be unregistered
+ *
+ * Unregisters a previously registered reboot
+ * notifier function.
+ *
+ * Returns zero on success, or %-ENOENT on failure.
+ */
+int unregister_reboot_notifier(struct notifier_block *nb)
+{
+ return blocking_notifier_chain_unregister(&reboot_notifier_list, nb);
+}
+EXPORT_SYMBOL(unregister_reboot_notifier);
+
+/**
* kernel_restart - reboot the system
* @cmd: pointer to buffer containing command to execute for restart
* or %NULL
_
Patches currently in -mm which might be from amwang@xxxxxxxxxx are
linux-next.patch
notifiers-cpu-move-cpu-notifiers-into-cpuh.patch
notifiers-net-move-netdevice-notifiers-into-netdeviceh.patch
notifiers-sys-move-reboot-notifiers-into-rebooth.patch
notifiers-pm-move-pm-notifiers-into-suspendh.patch
notifiers-vt-move-vt-notifiers-into-vth.patch
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