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| author | Grant Likely <grant.likely@secretlab.ca> | 2010-07-24 17:49:13 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-07-24 17:49:13 +0200 |
| commit | 4e4f62bf7396fca48efe61513640ee399a6046e3 (patch) | |
| tree | 42a503af02d9806bcc05e5fcc2cd53f9bd45b0c2 /init | |
| parent | of/device: Fix build errors for non-ppc and non-microblaze (diff) | |
| parent | Linux 2.6.35-rc6 (diff) | |
| download | linux-4e4f62bf7396fca48efe61513640ee399a6046e3.tar.xz linux-4e4f62bf7396fca48efe61513640ee399a6046e3.zip | |
Merge commit 'v2.6.35-rc6' into devicetree/next
Conflicts:
arch/sparc/kernel/prom_64.c
Diffstat (limited to 'init')
| -rw-r--r-- | init/main.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c index 3bdb152f412f..a42fdf4aeba9 100644 --- a/init/main.c +++ b/init/main.c @@ -125,7 +125,9 @@ static char *ramdisk_execute_command; #ifdef CONFIG_SMP /* Setup configured maximum number of CPUs to activate */ -unsigned int __initdata setup_max_cpus = NR_CPUS; +unsigned int setup_max_cpus = NR_CPUS; +EXPORT_SYMBOL(setup_max_cpus); + /* * Setup routine for controlling SMP activation @@ -422,18 +424,26 @@ static void __init setup_command_line(char *command_line) * gcc-3.4 accidentally inlines this function, so use noinline. */ +static __initdata DECLARE_COMPLETION(kthreadd_done); + static noinline void __init_refok rest_init(void) __releases(kernel_lock) { int pid; rcu_scheduler_starting(); + /* + * We need to spawn init first so that it obtains pid 1, however + * the init task will end up wanting to create kthreads, which, if + * we schedule it before we create kthreadd, will OOPS. + */ kernel_thread(kernel_init, NULL, CLONE_FS | CLONE_SIGHAND); numa_default_policy(); pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES); rcu_read_lock(); kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns); rcu_read_unlock(); + complete(&kthreadd_done); unlock_kernel(); /* @@ -855,6 +865,10 @@ static noinline int init_post(void) static int __init kernel_init(void * unused) { + /* + * Wait until kthreadd is all set-up. + */ + wait_for_completion(&kthreadd_done); lock_kernel(); /* |