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 <ying.huang@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h
index c8986bb99ed5515f6d2191480cdd61576e76690c..df15a0dc228e23da027667d3a992658daadf2305 100644 (file)
--- 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 db8f54a3451f4f4fd0a8d8bf6dee963374d81db1..fae5beb3c3d607086c4cffa48b34e825bc9a5664 100644 (file)
--- 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 541be835fc5a16f7ee6019fa6f2812f3e310a1cb..e1d58f819d78bd7df803d4c3b7cb555281cc4d18 100644 (file)
--- 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 acdcdc66f1b6ed6ee499a8a453b56ed90f66c08c..3736d9b332896bb83ba0b9c5c7358e4510766386 100644 (file)
--- 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 cbaa34196797ea55a67afbfa9a79a3fc74384e59..ae63a964b858049f63a47e446e96bb54295a6c0c 100644 (file)
--- 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 f219c6411e0be1145b10676603a69f25385f9ce2..bb729b84a21e4c3c48b3a290676236c12d6a4616 100644 (file)
--- 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 00f4260ef09b5cbeb0547d7b4daca53ccf407af1..765a5e1660fc787de8e80a471307b162c4e83307 100644 (file)
--- 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 9fe478d984068fea53488d4405db4066863df39c..466450167dead2162cb4b35c19593ecf4d358b26 100644 (file)
--- 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 cdbab43b7d3a6c3b98f0cfd330435148617c4f85..4314892aaebb990572547d371dc5e2febde884ae 100644 (file)
--- 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 c0e52a14fd4dd981ee36ea66484f7f564b40bd04..f6fb3d21883cf68ea730344c665633f0fb34f339 100644 (file)
--- 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 32110cede64fd23554f1c8c5a24233d5a63f14ab..17f76fc0517377094cf318a544eb55b2e8eaeb56 100644 (file)
--- 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 bfbbd120623c63090d82798140c1a43b4ccc8ed7..2810558802b6c6662ca3fd09719684878c32b6bb 100644 (file)
--- 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;