Manual merge with Linus

3 files changed, 54 insertions, 10 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 05a75c4f5ce2..d5a1a1228fab 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -77,6 +77,22 @@ config LOCALVERSION
 	  object and source tree, in that order.  Your total string can
 	  be a maximum of 64 characters.
 
+config LOCALVERSION_AUTO
+	bool "Automatically append version information to the version string"
+	default y
+	help
+	  This will try to automatically determine if the current tree is a
+	  release tree by looking for git tags that
+	  belong to the current top of tree revision.
+
+	  A string of the format -gxxxxxxxx will be added to the localversion
+	  if a git based tree is found.  The string generated by this will be
+	  appended after any matching localversion* files, and after the value
+	  set in CONFIG_LOCALVERSION
+
+	  Note: This requires Perl, and a git repository, but not necessarily
+	  the git or cogito tools to be installed.
+
 config SWAP
 	bool "Support for paging of anonymous memory (swap)"
 	depends on MMU
@@ -238,6 +254,8 @@ config CPUSETS
 
 	  Say N if unsure.
 
+source "usr/Kconfig"
+
 menuconfig EMBEDDED
 	bool "Configure standard kernel features (for small systems)"
 	help
@@ -260,8 +278,8 @@ config KALLSYMS_ALL
 	help
 	   Normally kallsyms only contains the symbols of functions, for nicer
 	   OOPS messages.  Some debuggers can use kallsyms for other
-	   symbols too: say Y here to include all symbols, and you
-	   don't care about adding 300k to the size of your kernel.
+	   symbols too: say Y here to include all symbols, if you need them 
+	   and you don't care about adding 300k to the size of your kernel.
 
 	   Say N.
 
diff --git a/init/Makefile b/init/Makefile
index 93a53fbdbe79..a2300078f2b7 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -25,4 +25,5 @@ $(obj)/version.o: include/linux/compile.h
 
 include/linux/compile.h: FORCE
 	@echo '  CHK     $@'
-	@$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CC) $(CFLAGS)"
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
+	"$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(CFLAGS)"
diff --git a/init/main.c b/init/main.c
index ff410063e4e1..f142d4035341 100644
--- a/init/main.c
+++ b/init/main.c
@@ -123,6 +123,7 @@ extern void softirq_init(void);
 char saved_command_line[COMMAND_LINE_SIZE];
 
 static char *execute_command;
+static char *ramdisk_execute_command;
 
 /* Setup configured maximum number of CPUs to activate */
 static unsigned int max_cpus = NR_CPUS;
@@ -297,6 +298,18 @@ static int __init init_setup(char *str)
 }
 __setup("init=", init_setup);
 
+static int __init rdinit_setup(char *str)
+{
+	unsigned int i;
+
+	ramdisk_execute_command = str;
+	/* See "auto" comment in init_setup */
+	for (i = 1; i < MAX_INIT_ARGS; i++)
+		argv_init[i] = NULL;
+	return 1;
+}
+__setup("rdinit=", rdinit_setup);
+
 extern void setup_arch(char **);
 
 #ifndef CONFIG_SMP
@@ -614,6 +627,7 @@ static void do_pre_smp_initcalls(void)
 	migration_init();
 #endif
 	spawn_ksoftirqd();
+	spawn_softlockup_task();
 }
 
 static void run_init_process(char *init_filename)
@@ -680,10 +694,14 @@ static int init(void * unused)
 	 * check if there is an early userspace init.  If yes, let it do all
 	 * the work
 	 */
-	if (sys_access((const char __user *) "/init", 0) == 0)
-		execute_command = "/init";
-	else
+
+	if (!ramdisk_execute_command)
+		ramdisk_execute_command = "/init";
+
+	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
+		ramdisk_execute_command = NULL;
 		prepare_namespace();
+	}
 
 	/*
 	 * Ok, we have completed the initial bootup, and
@@ -700,17 +718,24 @@ static int init(void * unused)
 
 	(void) sys_dup(0);
 	(void) sys_dup(0);
-	
+
+	if (ramdisk_execute_command) {
+		run_init_process(ramdisk_execute_command);
+		printk(KERN_WARNING "Failed to execute %s\n",
+				ramdisk_execute_command);
+	}
+
 	/*
 	 * We try each of these until one succeeds.
 	 *
 	 * The Bourne shell can be used instead of init if we are 
 	 * trying to recover a really broken machine.
 	 */
-
-	if (execute_command)
+	if (execute_command) {
 		run_init_process(execute_command);
-
+		printk(KERN_WARNING "Failed to execute %s.  Attempting "
+					"defaults...\n", execute_command);
+	}
 	run_init_process("/sbin/init");
 	run_init_process("/etc/init");
 	run_init_process("/bin/init");