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authorAlon Bar-Lev <alon.barlev@gmail.com>2007-02-12 00:54:25 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:39 -0800
commitadf48856db47f4f0f661f2f4b7004890408135cf (patch)
tree04bc4bf2ffb77458aa9945829b3eeb616334f2b3
parent712f77b5659208b43c925e1b28c4f44891c4d94f (diff)
[PATCH] Dynamic kernel command-line: x86_64
1. Rename saved_command_line into boot_command_line. 2. Set command_line as __initdata. Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/x86_64/kernel/head64.c4
-rw-r--r--arch/x86_64/kernel/setup.c6
-rw-r--r--include/asm-x86_64/bootsetup.h2
3 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c
index cc230b93cd1..be4bfb43d6d 100644
--- a/arch/x86_64/kernel/head64.c
+++ b/arch/x86_64/kernel/head64.c
@@ -34,7 +34,7 @@ static void __init clear_bss(void)
#define OLD_CL_BASE_ADDR 0x90000
#define OLD_CL_OFFSET 0x90022
-extern char saved_command_line[];
+extern char __initdata boot_command_line[];
static void __init copy_bootdata(char *real_mode_data)
{
@@ -50,7 +50,7 @@ static void __init copy_bootdata(char *real_mode_data)
new_data = OLD_CL_BASE_ADDR + * (u16 *) OLD_CL_OFFSET;
}
command_line = (char *) ((u64)(new_data));
- memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE);
+ memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
}
void __init x86_64_start_kernel(char * real_mode_data)
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index af425a8049f..60477244d1a 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -100,7 +100,7 @@ EXPORT_SYMBOL_GPL(edid_info);
extern int root_mountflags;
-char command_line[COMMAND_LINE_SIZE];
+char __initdata command_line[COMMAND_LINE_SIZE];
struct resource standard_io_resources[] = {
{ .name = "dma1", .start = 0x00, .end = 0x1f,
@@ -343,7 +343,7 @@ static void discover_ebda(void)
void __init setup_arch(char **cmdline_p)
{
- printk(KERN_INFO "Command line: %s\n", saved_command_line);
+ printk(KERN_INFO "Command line: %s\n", boot_command_line);
ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
screen_info = SCREEN_INFO;
@@ -373,7 +373,7 @@ void __init setup_arch(char **cmdline_p)
early_identify_cpu(&boot_cpu_data);
- strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE);
+ strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
*cmdline_p = command_line;
parse_early_param();
diff --git a/include/asm-x86_64/bootsetup.h b/include/asm-x86_64/bootsetup.h
index b829f7b534b..7b1c3ad155f 100644
--- a/include/asm-x86_64/bootsetup.h
+++ b/include/asm-x86_64/bootsetup.h
@@ -31,7 +31,7 @@ extern char x86_boot_params[BOOT_PARAM_SIZE];
#define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF))
#define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
#define EDD_BUF ((struct edd_info *) (PARAM+EDDBUF))
-#define COMMAND_LINE saved_command_line
+#define COMMAND_LINE boot_command_line
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000