5 files changed, 55 insertions, 87 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 38416a199def..3b36a1d53656 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -214,6 +214,17 @@ config CPUSETS
 
           Say N if unsure.
 
+config RELAY
+        bool "Kernel->user space relay support (formerly relayfs)"
+        help
+          This option enables support for relay interface support in
+          certain file systems (such as debugfs).
+          It is designed to provide an efficient mechanism for tools and
+          facilities to relay large amounts of data from kernel space to
+          user space.
+
+          If unsure, say N.
+
 source "usr/Kconfig"
 
 config UID16
@@ -354,43 +365,6 @@ config SHMEM
           option replaces shmem and tmpfs with the much simpler ramfs code,
           which may be appropriate on small systems without swap.
 
-config CC_ALIGN_FUNCTIONS
-        int "Function alignment" if EMBEDDED
-        default 0
-        help
-          Align the start of functions to the next power-of-two greater than n,
-          skipping up to n bytes.  For instance, 32 aligns functions
-          to the next 32-byte boundary, but 24 would align to the next
-          32-byte boundary only if this can be done by skipping 23 bytes or less.
-          Zero means use compiler's default.
-
-config CC_ALIGN_LABELS
-        int "Label alignment" if EMBEDDED
-        default 0
-        help
-          Align all branch targets to a power-of-two boundary, skipping
-          up to n bytes like ALIGN_FUNCTIONS.  This option can easily
-          make code slower, because it must insert dummy operations for
-          when the branch target is reached in the usual flow of the code.
-          Zero means use compiler's default.
-
-config CC_ALIGN_LOOPS
-        int "Loop alignment" if EMBEDDED
-        default 0
-        help
-          Align loops to a power-of-two boundary, skipping up to n bytes.
-          Zero means use compiler's default.
-
-config CC_ALIGN_JUMPS
-        int "Jump alignment" if EMBEDDED
-        default 0
-        help
-          Align branch targets to a power-of-two boundary, for branch
-          targets where the targets can only be reached by jumping,
-          skipping up to n bytes like ALIGN_FUNCTIONS.  In this case,
-          no dummy operations need be executed.
-          Zero means use compiler's default.
-
 config SLAB
         default y
         bool "Use full SLAB allocator" if EMBEDDED
@@ -459,15 +433,6 @@ config MODULE_FORCE_UNLOAD
           rmmod).  This is mainly for kernel developers and desperate users.
           If unsure, say N.
 
-config OBSOLETE_MODPARM
-        bool
-        default y
-        depends on MODULES
-        help
-          You need this option to use module parameters on modules which
-          have not been converted to the new module parameter system yet.
-          If unsure, say Y.
-
 config MODVERSIONS
         bool "Module versioning support"
         depends on MODULES
diff --git a/init/do_mounts.c b/init/do_mounts.c
index b27c11064409..adb7cad3e6ee 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -19,11 +19,10 @@ extern int get_filesystem_list(char * buf);
 
 int __initdata rd_doload;       /* 1 = load RAM disk, 0 = don't load */
 
-int root_mountflags = MS_RDONLY | MS_VERBOSE;
+int root_mountflags = MS_RDONLY | MS_SILENT;
 char * __initdata root_device_name;
 static char __initdata saved_root_name[64];
 
-/* this is initialized in init/main.c */
 dev_t ROOT_DEV;
 
 static int __init load_ramdisk(char *str)
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a05cabd0fd10..405f9031af87 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -56,6 +56,7 @@ static void __init handle_initrd(void)
         sys_chroot(".");
         mount_devfs_fs ();
 
+        current->flags |= PF_NOFREEZE;
         pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
         if (pid > 0) {
                 while (pid != sys_wait4(-1, NULL, 0, NULL))
diff --git a/init/initramfs.c b/init/initramfs.c
index 637344b05981..679d870d991b 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -506,6 +506,7 @@ void __init populate_rootfs(void)
                 panic(err);
 #ifdef CONFIG_BLK_DEV_INITRD
         if (initrd_start) {
+#ifdef CONFIG_BLK_DEV_RAM
                 int fd;
                 printk(KERN_INFO "checking if image is initramfs...");
                 err = unpack_to_rootfs((char *)initrd_start,
@@ -518,13 +519,22 @@ void __init populate_rootfs(void)
                         return;
                 }
                 printk("it isn't (%s); looks like an initrd\n", err);
-                fd = sys_open("/initrd.image", O_WRONLY|O_CREAT, 700);
+                fd = sys_open("/initrd.image", O_WRONLY|O_CREAT, 0700);
                 if (fd >= 0) {
                         sys_write(fd, (char *)initrd_start,
                                         initrd_end - initrd_start);
                         sys_close(fd);
                         free_initrd();
                 }
+#else
+                printk(KERN_INFO "Unpacking initramfs...");
+                err = unpack_to_rootfs((char *)initrd_start,
+                        initrd_end - initrd_start, 0);
+                if (err)
+                        panic(err);
+                printk(" done\n");
+                free_initrd();
+#endif
         }
 #endif
 }
diff --git a/init/main.c b/init/main.c
index 4c194c47395f..4a2f0898dda1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -306,8 +306,6 @@ static int __init rdinit_setup(char *str)
 }
 __setup("rdinit=", rdinit_setup);
 
-extern void setup_arch(char **);
-
 #ifndef CONFIG_SMP
 
 #ifdef CONFIG_X86_LOCAL_APIC
@@ -325,7 +323,7 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 #else
 
 #ifdef __GENERIC_PER_CPU
-unsigned long __per_cpu_offset[NR_CPUS];
+unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 
 EXPORT_SYMBOL(__per_cpu_offset);
 
@@ -333,6 +331,7 @@ static void __init setup_per_cpu_areas(void)
 {
         unsigned long size, i;
         char *ptr;
+        unsigned long nr_possible_cpus = num_possible_cpus();
 
         /* Copy section for each CPU (we discard the original) */
         size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
@@ -340,12 +339,12 @@ static void __init setup_per_cpu_areas(void)
         if (size < PERCPU_ENOUGH_ROOM)
                 size = PERCPU_ENOUGH_ROOM;
 #endif
+        ptr = alloc_bootmem(size * nr_possible_cpus);
 
-        ptr = alloc_bootmem(size * NR_CPUS);
-
-        for (i = 0; i < NR_CPUS; i++, ptr += size) {
+        for_each_possible_cpu(i) {
                 __per_cpu_offset[i] = ptr - __per_cpu_start;
                 memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
+                ptr += size;
         }
 }
 #endif /* !__GENERIC_PER_CPU */
@@ -438,6 +437,15 @@ void __init parse_early_param(void)
  *      Activate the first processor.
  */
 
+static void __init boot_cpu_init(void)
+{
+        int cpu = smp_processor_id();
+        /* Mark the boot cpu "present", "online" etc for SMP and UP case */
+        cpu_set(cpu, cpu_online_map);
+        cpu_set(cpu, cpu_present_map);
+        cpu_set(cpu, cpu_possible_map);
+}
+
 asmlinkage void __init start_kernel(void)
 {
         char * command_line;
@@ -447,17 +455,13 @@ asmlinkage void __init start_kernel(void)
  * enable them
  */
         lock_kernel();
+        boot_cpu_init();
         page_address_init();
         printk(KERN_NOTICE);
         printk(linux_banner);
         setup_arch(&command_line);
         setup_per_cpu_areas();
-
-        /*
-         * Mark the boot cpu "online" so that it can call console drivers in
-         * printk() and can access its per-cpu storage.
-         */
-        smp_prepare_boot_cpu();
+        smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
 
         /*
          * Set up the scheduler prior starting any interrupts (such as the
@@ -565,17 +569,23 @@ static void __init do_initcalls(void)
         int count = preempt_count();
 
         for (call = __initcall_start; call < __initcall_end; call++) {
-                char *msg;
+                char *msg = NULL;
+                char msgbuf[40];
+                int result;
 
                 if (initcall_debug) {
-                        printk(KERN_DEBUG "Calling initcall 0x%p", *call);
-                        print_fn_descriptor_symbol(": %s()", (unsigned long) *call);
+                        printk("Calling initcall 0x%p", *call);
+                        print_fn_descriptor_symbol(": %s()",
+                                        (unsigned long) *call);
                         printk("\n");
                 }
 
-                (*call)();
+                result = (*call)();
 
-                msg = NULL;
+                if (result && (result != -ENODEV || initcall_debug)) {
+                        sprintf(msgbuf, "error code %d", result);
+                        msg = msgbuf;
+                }
                 if (preempt_count() != count) {
                         msg = "preemption imbalance";
                         preempt_count() = count;
@@ -585,8 +595,10 @@ static void __init do_initcalls(void)
                         local_irq_enable();
                 }
                 if (msg) {
-                        printk(KERN_WARNING "error in initcall at 0x%p: "
-                                "returned with %s\n", *call, msg);
+                        printk(KERN_WARNING "initcall at 0x%p", *call);
+                        print_fn_descriptor_symbol(": %s()",
+                                        (unsigned long) *call);
+                        printk(": returned with %s\n", msg);
                 }
         }
 
@@ -633,24 +645,6 @@ static void run_init_process(char *init_filename)
         execve(init_filename, argv_init, envp_init);
 }
 
-static inline void fixup_cpu_present_map(void)
-{
-#ifdef CONFIG_SMP
-        int i;
-
-        /*
-         * If arch is not hotplug ready and did not populate
-         * cpu_present_map, just make cpu_present_map same as cpu_possible_map
-         * for other cpu bringup code to function as normal. e.g smp_init() etc.
-         */
-        if (cpus_empty(cpu_present_map)) {
-                for_each_cpu(i) {
-                        cpu_set(i, cpu_present_map);
-                }
-        }
-#endif
-}
-
 static int init(void * unused)
 {
         lock_kernel();
@@ -672,7 +666,6 @@ static int init(void * unused)
 
         do_pre_smp_initcalls();
 
-        fixup_cpu_present_map();
         smp_init();
         sched_init_smp();