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Diffstat (limited to 'init')
-rw-r--r--init/Kconfig17
-rw-r--r--init/initramfs.c4
-rw-r--r--init/main.c14
3 files changed, 24 insertions, 11 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 77a4318a6043..1fb5f313d18f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -682,10 +682,6 @@ config CPU_ISOLATION
source "kernel/rcu/Kconfig"
-config BUILD_BIN2C
- bool
- default n
-
config IKCONFIG
tristate "Kernel .config support"
help
@@ -1384,6 +1380,19 @@ config BOOT_CONFIG
If unsure, say Y.
+config BOOT_CONFIG_FORCE
+ bool "Force unconditional bootconfig processing"
+ depends on BOOT_CONFIG
+ default y if BOOT_CONFIG_EMBED
+ help
+ With this Kconfig option set, BOOT_CONFIG processing is carried
+ out even when the "bootconfig" kernel-boot parameter is omitted.
+ In fact, with this Kconfig option set, there is no way to
+ make the kernel ignore the BOOT_CONFIG-supplied kernel-boot
+ parameters.
+
+ If unsure, say N.
+
config BOOT_CONFIG_EMBED
bool "Embed bootconfig file in the kernel"
depends on BOOT_CONFIG
diff --git a/init/initramfs.c b/init/initramfs.c
index 62321883fe61..f6c112e30bd4 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -11,6 +11,7 @@
#include <linux/syscalls.h>
#include <linux/utime.h>
#include <linux/file.h>
+#include <linux/kstrtox.h>
#include <linux/memblock.h>
#include <linux/mm.h>
#include <linux/namei.h>
@@ -571,8 +572,7 @@ __setup("keepinitrd", keepinitrd_setup);
static bool __initdata initramfs_async = true;
static int __init initramfs_async_setup(char *str)
{
- strtobool(str, &initramfs_async);
- return 1;
+ return kstrtobool(str, &initramfs_async) == 0;
}
__setup("initramfs_async=", initramfs_async_setup);
diff --git a/init/main.c b/init/main.c
index e1c3911d7c70..bb87b789c543 100644
--- a/init/main.c
+++ b/init/main.c
@@ -429,7 +429,7 @@ static void __init setup_boot_config(void)
err = parse_args("bootconfig", tmp_cmdline, NULL, 0, 0, 0, NULL,
bootconfig_params);
- if (IS_ERR(err) || !bootconfig_found)
+ if (IS_ERR(err) || !(bootconfig_found || IS_ENABLED(CONFIG_BOOT_CONFIG_FORCE)))
return;
/* parse_args() stops at the next param of '--' and returns an address */
@@ -437,7 +437,11 @@ static void __init setup_boot_config(void)
initargs_offs = err - tmp_cmdline;
if (!data) {
- pr_err("'bootconfig' found on command line, but no bootconfig found\n");
+ /* If user intended to use bootconfig, show an error level message */
+ if (bootconfig_found)
+ pr_err("'bootconfig' found on command line, but no bootconfig found\n");
+ else
+ pr_info("No bootconfig data provided, so skipping bootconfig");
return;
}
@@ -855,8 +859,8 @@ static void __init mm_init(void)
pgtable_init();
debug_objects_mem_init();
vmalloc_init();
- /* Should be run after vmap initialization */
- if (early_page_ext_enabled())
+ /* If no deferred init page_ext now, as vmap is fully initialized */
+ if (!deferred_struct_pages)
page_ext_init();
/* Should be run before the first non-init thread is created */
init_espfix_bsp();
@@ -1628,7 +1632,7 @@ static noinline void __init kernel_init_freeable(void)
padata_init();
page_alloc_init_late();
/* Initialize page ext after all struct pages are initialized. */
- if (!early_page_ext_enabled())
+ if (deferred_struct_pages)
page_ext_init();
do_basic_setup();