From: Huang Ying Date: Fri, 15 Aug 2008 07:40:22 +0000 (-0700) Subject: kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE X-Git-Tag: v2.6.27-rc4~95 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=163f6876f5c3ff8215e900b93779e960a56b3694;p=linux-2.6 kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control page is used for not only code on some platform. For example in kexec jump, it is used for data and stack too. [akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion] Signed-off-by: Huang Ying Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: "Eric W. Biederman" Cc: Vivek Goyal Cc: Ingo Molnar Cc: Russell King Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h index c8986bb99e..df15a0dc22 100644 --- a/arch/arm/include/asm/kexec.h +++ b/arch/arm/include/asm/kexec.h @@ -10,7 +10,7 @@ /* Maximum address we can use for the control code buffer */ #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) -#define KEXEC_CONTROL_CODE_SIZE 4096 +#define KEXEC_CONTROL_PAGE_SIZE 4096 #define KEXEC_ARCH KEXEC_ARCH_ARM diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index db8f54a345..fae5beb3c3 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -71,7 +71,7 @@ void machine_kexec(struct kimage *image) flush_icache_range((unsigned long) reboot_code_buffer, - (unsigned long) reboot_code_buffer + KEXEC_CONTROL_CODE_SIZE); + (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); cpu_proc_fin(); diff --git a/arch/ia64/include/asm/kexec.h b/arch/ia64/include/asm/kexec.h index 541be835fc..e1d58f819d 100644 --- a/arch/ia64/include/asm/kexec.h +++ b/arch/ia64/include/asm/kexec.h @@ -9,7 +9,7 @@ /* Maximum address we can use for the control code buffer */ #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE -#define KEXEC_CONTROL_CODE_SIZE (8192 + 8192 + 4096) +#define KEXEC_CONTROL_PAGE_SIZE (8192 + 8192 + 4096) /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_IA_64 diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h index acdcdc66f1..3736d9b332 100644 --- a/arch/powerpc/include/asm/kexec.h +++ b/arch/powerpc/include/asm/kexec.h @@ -22,7 +22,7 @@ #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE #endif -#define KEXEC_CONTROL_CODE_SIZE 4096 +#define KEXEC_CONTROL_PAGE_SIZE 4096 /* The native architecture */ #ifdef __powerpc64__ diff --git a/arch/powerpc/kernel/machine_kexec_32.c b/arch/powerpc/kernel/machine_kexec_32.c index cbaa341967..ae63a964b8 100644 --- a/arch/powerpc/kernel/machine_kexec_32.c +++ b/arch/powerpc/kernel/machine_kexec_32.c @@ -51,7 +51,7 @@ void default_machine_kexec(struct kimage *image) relocate_new_kernel_size); flush_icache_range(reboot_code_buffer, - reboot_code_buffer + KEXEC_CONTROL_CODE_SIZE); + reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); /* now call it */ diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h index f219c6411e..bb729b84a2 100644 --- a/arch/s390/include/asm/kexec.h +++ b/arch/s390/include/asm/kexec.h @@ -31,7 +31,7 @@ #define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31) /* Allocate one page for the pdp and the second for the code */ -#define KEXEC_CONTROL_CODE_SIZE 4096 +#define KEXEC_CONTROL_PAGE_SIZE 4096 /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_S390 diff --git a/arch/sh/include/asm/kexec.h b/arch/sh/include/asm/kexec.h index 00f4260ef0..765a5e1660 100644 --- a/arch/sh/include/asm/kexec.h +++ b/arch/sh/include/asm/kexec.h @@ -21,7 +21,7 @@ /* Maximum address we can use for the control code buffer */ #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE -#define KEXEC_CONTROL_CODE_SIZE 4096 +#define KEXEC_CONTROL_PAGE_SIZE 4096 /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_SH diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c index 9fe478d984..466450167d 100644 --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -78,7 +78,7 @@ static void load_segments(void) /* * A architecture hook called to validate the * proposed image and prepare the control pages - * as needed. The pages for KEXEC_CONTROL_CODE_SIZE + * as needed. The pages for KEXEC_CONTROL_PAGE_SIZE * have been allocated, but the segments have yet * been copied into the kernel. * diff --git a/include/asm-mips/kexec.h b/include/asm-mips/kexec.h index cdbab43b7d..4314892aae 100644 --- a/include/asm-mips/kexec.h +++ b/include/asm-mips/kexec.h @@ -16,7 +16,7 @@ /* Maximum address we can use for the control code buffer */ #define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000) -#define KEXEC_CONTROL_CODE_SIZE 4096 +#define KEXEC_CONTROL_PAGE_SIZE 4096 /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_MIPS diff --git a/include/asm-x86/kexec.h b/include/asm-x86/kexec.h index c0e52a14fd..f6fb3d2188 100644 --- a/include/asm-x86/kexec.h +++ b/include/asm-x86/kexec.h @@ -63,7 +63,7 @@ /* Maximum address we can use for the control code buffer */ # define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE -# define KEXEC_CONTROL_CODE_SIZE 4096 +# define KEXEC_CONTROL_PAGE_SIZE 4096 /* The native architecture */ # define KEXEC_ARCH KEXEC_ARCH_386 @@ -79,7 +79,7 @@ # define KEXEC_CONTROL_MEMORY_LIMIT (0xFFFFFFFFFFUL) /* Allocate one page for the pdp and the second for the code */ -# define KEXEC_CONTROL_CODE_SIZE (4096UL + 4096UL) +# define KEXEC_CONTROL_PAGE_SIZE (4096UL + 4096UL) /* The native architecture */ # define KEXEC_ARCH KEXEC_ARCH_X86_64 diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 32110cede6..17f76fc051 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -25,8 +25,8 @@ #error KEXEC_CONTROL_MEMORY_LIMIT not defined #endif -#ifndef KEXEC_CONTROL_CODE_SIZE -#error KEXEC_CONTROL_CODE_SIZE not defined +#ifndef KEXEC_CONTROL_PAGE_SIZE +#error KEXEC_CONTROL_PAGE_SIZE not defined #endif #ifndef KEXEC_ARCH diff --git a/kernel/kexec.c b/kernel/kexec.c index bfbbd12062..2810558802 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -77,7 +77,7 @@ int kexec_should_crash(struct task_struct *p) * * The code for the transition from the current kernel to the * the new kernel is placed in the control_code_buffer, whose size - * is given by KEXEC_CONTROL_CODE_SIZE. In the best case only a single + * is given by KEXEC_CONTROL_PAGE_SIZE. In the best case only a single * page of memory is necessary, but some architectures require more. * Because this memory must be identity mapped in the transition from * virtual to physical addresses it must live in the range @@ -242,7 +242,7 @@ static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry, */ result = -ENOMEM; image->control_code_page = kimage_alloc_control_pages(image, - get_order(KEXEC_CONTROL_CODE_SIZE)); + get_order(KEXEC_CONTROL_PAGE_SIZE)); if (!image->control_code_page) { printk(KERN_ERR "Could not allocate control_code_buffer\n"); goto out; @@ -317,7 +317,7 @@ static int kimage_crash_alloc(struct kimage **rimage, unsigned long entry, */ result = -ENOMEM; image->control_code_page = kimage_alloc_control_pages(image, - get_order(KEXEC_CONTROL_CODE_SIZE)); + get_order(KEXEC_CONTROL_PAGE_SIZE)); if (!image->control_code_page) { printk(KERN_ERR "Could not allocate control_code_buffer\n"); goto out;