diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 41 | ||||
| -rw-r--r-- | init/do_mounts_initrd.c | 1 | ||||
| -rw-r--r-- | init/initramfs.c | 10 | ||||
| -rw-r--r-- | init/main.c | 26 | ||||
| -rw-r--r-- | init/version.c | 6 |
5 files changed, 64 insertions, 20 deletions
diff --git a/init/Kconfig b/init/Kconfig index 176f7e5136c..a3f83e2c825 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -249,6 +249,26 @@ config CPUSETS Say N if unsure. +config SYSFS_DEPRECATED + bool "Create deprecated sysfs files" + default y + help + This option creates deprecated symlinks such as the + "device"-link, the <subsystem>:<name>-link, and the + "bus"-link. It may also add deprecated key in the + uevent environment. + None of these features or values should be used today, as + they export driver core implementation details to userspace + or export properties which can't be kept stable across kernel + releases. + + If enabled, this option will also move any device structures + that belong to a class, back into the /sys/class heirachy, in + order to support older versions of udev. + + If you are using a distro that was released in 2006 or later, + it should be safe to say N here. + config RELAY bool "Kernel->user space relay support (formerly relayfs)" help @@ -284,6 +304,15 @@ config TASK_XACCT Say N if unsure. +config TASK_IO_ACCOUNTING + bool "Enable per-task storage I/O accounting (EXPERIMENTAL)" + depends on TASK_XACCT + help + Collect information on the number of bytes of storage I/O which this + task has caused. + + Say N if unsure. + config SYSCTL bool @@ -319,7 +348,7 @@ config SYSCTL_SYSCALL If unsure say Y here. config KALLSYMS - bool "Load all symbols for debugging/kksymoops" if EMBEDDED + bool "Load all symbols for debugging/ksymoops" if EMBEDDED default y help Say Y here to let the kernel print out symbolic crash information and @@ -421,7 +450,7 @@ config SHMEM config SLAB default y - bool "Use full SLAB allocator" if EMBEDDED + bool "Use full SLAB allocator" if (EMBEDDED && !SMP && !SPARSEMEM) help Disabling this replaces the advanced SLAB allocator and kmalloc support with the drastically simpler SLOB allocator. @@ -432,10 +461,10 @@ config VM_EVENT_COUNTERS default y bool "Enable VM event counters for /proc/vmstat" if EMBEDDED help - VM event counters are only needed to for event counts to be - shown. They have no function for the kernel itself. This - option allows the disabling of the VM event counters. - /proc/vmstat will only show page counts. + VM event counters are needed for event counts to be shown. + This option allows the disabling of the VM event counters + on EMBEDDED systems. /proc/vmstat will only show page counts + if VM event counters are disabled. endmenu # General setup diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index 919a80cb322..2cfd7cb36e7 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -6,6 +6,7 @@ #include <linux/romfs_fs.h> #include <linux/initrd.h> #include <linux/sched.h> +#include <linux/freezer.h> #include "do_mounts.h" diff --git a/init/initramfs.c b/init/initramfs.c index d28c1094d7e..4fa0f7977de 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -182,6 +182,10 @@ static int __init do_collect(void) static int __init do_header(void) { + if (memcmp(collected, "070707", 6)==0) { + error("incorrect cpio method used: use -H newc option"); + return 1; + } if (memcmp(collected, "070701", 6)) { error("no cpio magic"); return 1; @@ -522,7 +526,7 @@ static void __init free_initrd(void) #endif -void __init populate_rootfs(void) +static int __init populate_rootfs(void) { char *err = unpack_to_rootfs(__initramfs_start, __initramfs_end - __initramfs_start, 0); @@ -540,7 +544,7 @@ void __init populate_rootfs(void) unpack_to_rootfs((char *)initrd_start, initrd_end - initrd_start, 0); free_initrd(); - return; + return 0; } printk("it isn't (%s); looks like an initrd\n", err); fd = sys_open("/initrd.image", O_WRONLY|O_CREAT, 0700); @@ -561,4 +565,6 @@ void __init populate_rootfs(void) #endif } #endif + return 0; } +rootfs_initcall(populate_rootfs); diff --git a/init/main.c b/init/main.c index 36f608a7cfb..8b4a7d76916 100644 --- a/init/main.c +++ b/init/main.c @@ -29,6 +29,7 @@ #include <linux/percpu.h> #include <linux/kmod.h> #include <linux/kernel_stat.h> +#include <linux/start_kernel.h> #include <linux/security.h> #include <linux/workqueue.h> #include <linux/profile.h> @@ -49,6 +50,8 @@ #include <linux/buffer_head.h> #include <linux/debug_locks.h> #include <linux/lockdep.h> +#include <linux/pid_namespace.h> +#include <linux/device.h> #include <asm/io.h> #include <asm/bugs.h> @@ -73,6 +76,10 @@ #error Sorry, your GCC is too old. It builds incorrect kernels. #endif +#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0 +#warning gcc-4.1.0 is known to miscompile the kernel. A different compiler version is recommended. +#endif + static int init(void *); extern void init_IRQ(void); @@ -86,8 +93,6 @@ extern void pidmap_init(void); extern void prio_tree_init(void); extern void radix_tree_init(void); extern void free_initmem(void); -extern void populate_rootfs(void); -extern void driver_init(void); extern void prepare_namespace(void); #ifdef CONFIG_ACPI extern void acpi_early_init(void); @@ -525,6 +530,11 @@ asmlinkage void __init start_kernel(void) parse_args("Booting kernel", command_line, __start___param, __stop___param - __start___param, &unknown_bootoption); + if (!irqs_disabled()) { + printk(KERN_WARNING "start_kernel(): bug: interrupts were " + "enabled *very* early, fixing it\n"); + local_irq_disable(); + } sort_main_extable(); trap_init(); rcu_init(); @@ -619,8 +629,6 @@ static int __init initcall_debug_setup(char *str) } __setup("initcall_debug", initcall_debug_setup); -struct task_struct *child_reaper = &init_task; - extern initcall_t __initcall_start[], __initcall_end[]; static void __init do_initcalls(void) @@ -687,7 +695,7 @@ static void __init do_basic_setup(void) do_initcalls(); } -static void do_pre_smp_initcalls(void) +static void __init do_pre_smp_initcalls(void) { extern int spawn_ksoftirqd(void); #ifdef CONFIG_SMP @@ -720,7 +728,7 @@ static int init(void * unused) * assumptions about where in the task array this * can be found. */ - child_reaper = current; + init_pid_ns.child_reaper = current; cad_pid = task_pid(current); @@ -733,12 +741,6 @@ static int init(void * unused) cpuset_init_smp(); - /* - * Do this before initcalls, because some drivers want to access - * firmware files. - */ - populate_rootfs(); - do_basic_setup(); /* diff --git a/init/version.c b/init/version.c index 8f28344d9c7..6c01ec1cc48 100644 --- a/init/version.c +++ b/init/version.c @@ -34,6 +34,12 @@ struct uts_namespace init_uts_ns = { }; EXPORT_SYMBOL_GPL(init_uts_ns); +/* FIXED STRINGS! Don't touch! */ const char linux_banner[] = "Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n"; + +const char linux_proc_banner[] = + "%s version %s" + " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")" + " (" LINUX_COMPILER ") %s\n"; |