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-rw-r--r--init/Kconfig1
-rw-r--r--init/init_task.c3
-rw-r--r--init/main.c19
3 files changed, 12 insertions, 11 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 058b99d12f99..a1046963de27 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -76,7 +76,6 @@ config CC_HAS_ASM_INLINE
config CONSTRUCTORS
bool
- depends on !UML
config IRQ_WORK
bool
diff --git a/init/init_task.c b/init/init_task.c
index 8a992d73e6fb..3711cdaafed2 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -198,7 +198,8 @@ struct task_struct init_task
.lockdep_recursion = 0,
#endif
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- .ret_stack = NULL,
+ .ret_stack = NULL,
+ .tracing_graph_pause = ATOMIC_INIT(0),
#endif
#if defined(CONFIG_TRACING) && defined(CONFIG_PREEMPTION)
.trace_recursion = 0,
diff --git a/init/main.c b/init/main.c
index 6feee7f11eaf..a626e78dbf06 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1066,7 +1066,13 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
/* Call all constructor functions linked into the kernel. */
static void __init do_ctors(void)
{
-#ifdef CONFIG_CONSTRUCTORS
+/*
+ * For UML, the constructors have already been called by the
+ * normal setup code as it's just a normal ELF binary, so we
+ * cannot do it again - but we do need CONFIG_CONSTRUCTORS
+ * even on UML for modules.
+ */
+#if defined(CONFIG_CONSTRUCTORS) && !defined(CONFIG_UML)
ctor_fn_t *fn = (ctor_fn_t *) __ctors_start;
for (; fn < (ctor_fn_t *) __ctors_end; fn++)
@@ -1480,14 +1486,8 @@ void __init console_on_rootfs(void)
struct file *file = filp_open("/dev/console", O_RDWR, 0);
if (IS_ERR(file)) {
- pr_err("Warning: unable to open an initial console. Fallback to ttynull.\n");
- register_ttynull_console();
-
- file = filp_open("/dev/console", O_RDWR, 0);
- if (IS_ERR(file)) {
- pr_err("Warning: Failed to add ttynull console. No stdin, stdout, and stderr for the init process!\n");
- return;
- }
+ pr_err("Warning: unable to open an initial console.\n");
+ return;
}
init_dup(file);
init_dup(file);
@@ -1518,6 +1518,7 @@ static noinline void __init kernel_init_freeable(void)
init_mm_internals();
+ rcu_init_tasks_generic();
do_pre_smp_initcalls();
lockup_detector_init();

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