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-rw-r--r--init/Kconfig4
-rw-r--r--init/do_mounts_initrd.c4
-rw-r--r--init/main.c8
3 files changed, 11 insertions, 5 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 675d8a2326c..be8b7f55312 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -882,7 +882,7 @@ config MEMCG_SWAP_ENABLED
config MEMCG_KMEM
bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)"
depends on MEMCG && EXPERIMENTAL
- default n
+ depends on SLUB || SLAB
help
The Kernel Memory extension for Memory Resource Controller can limit
the amount of memory used by kernel objects in the system. Those are
@@ -1182,7 +1182,7 @@ config CC_OPTIMIZE_FOR_SIZE
Enabling this option will pass "-Os" instead of "-O2" to gcc
resulting in a smaller kernel.
- If unsure, say Y.
+ If unsure, say N.
config SYSCTL
bool
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index dfe606a7dd6..a32ec1ce882 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -36,6 +36,10 @@ __setup("noinitrd", no_initrd);
static int init_linuxrc(struct subprocess_info *info, struct cred *new)
{
sys_unshare(CLONE_FS | CLONE_FILES);
+ /* stdin/stdout/stderr for /linuxrc */
+ sys_open("/dev/console", O_RDWR, 0);
+ sys_dup(0);
+ sys_dup(0);
/* move initrd over / and chdir/chroot in initrd root */
sys_chdir("/root");
sys_mount(".", "/", NULL, MS_MOVE, NULL);
diff --git a/init/main.c b/init/main.c
index 18efadb11cf..ef139bda591 100644
--- a/init/main.c
+++ b/init/main.c
@@ -810,10 +810,12 @@ void __init load_default_modules(void)
static int run_init_process(const char *init_filename)
{
argv_init[0] = init_filename;
- return kernel_execve(init_filename, argv_init, envp_init);
+ return do_execve(init_filename,
+ (const char __user *const __user *)argv_init,
+ (const char __user *const __user *)envp_init);
}
-static void __init kernel_init_freeable(void);
+static noinline void __init kernel_init_freeable(void);
static int __ref kernel_init(void *unused)
{
@@ -856,7 +858,7 @@ static int __ref kernel_init(void *unused)
"See Linux Documentation/init.txt for guidance.");
}
-static void __init kernel_init_freeable(void)
+static noinline void __init kernel_init_freeable(void)
{
/*
* Wait until kthreadd is all set-up.