linux-kernel - [PATCH 3/19] change gdt acessor macro name

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Message-Id: <11969578193406-git-send-email-gcosta@redhat.com>
Date:	Thu,  6 Dec 2007 14:16:24 -0200
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, tglx@...utronix.de,
	mingo@...e.hu, ehabkost@...hat.com, jeremy@...p.org,
	avi@...ranet.com, anthony@...emonkey.ws,
	virtualization@...ts.linux-foundation.org, rusty@...tcorp.com.au,
	ak@...e.de, chrisw@...s-sol.org, rostedt@...dmis.org,
	hpa@...or.com, zach@...are.com,
	Glauber de Oliveira Costa <gcosta@...hat.com>
Subject: [PATCH 3/19] change gdt acessor macro name

This patch changes the name of x86_64 macro used to access the per-cpu
gdt. It is now equal to the i386 version, which will allow code to be shared.

Signed-off-by: Glauber de Oliveira Costa <gcosta@...hat.com>
---
 arch/x86/kernel/setup64.c     |    2 +-
 arch/x86/kernel/suspend_64.c  |    2 +-
 arch/x86/kernel/vsyscall_64.c |    2 +-
 include/asm-x86/desc_64.h     |   10 +++++-----
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 51297cc..05cafcb 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -228,7 +228,7 @@ void __cpuinit cpu_init (void)
 	 * and set up the GDT descriptor:
 	 */
 	if (cpu)
- 		memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE);
+		memcpy(get_cpu_gdt_table(cpu), cpu_gdt_table, GDT_SIZE);
 
 	cpu_gdt_descr[cpu].size = GDT_SIZE;
 	load_gdt((const struct desc_ptr *)&cpu_gdt_descr[cpu]);
diff --git a/arch/x86/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c
index c58ca08..54eca46 100644
--- a/arch/x86/kernel/suspend_64.c
+++ b/arch/x86/kernel/suspend_64.c
@@ -118,7 +118,7 @@ void fix_processor_context(void)
 
 	set_tss_desc(cpu,t);	/* This just modifies memory; should not be necessary. But... This is necessary, because 386 hardware has concept of busy TSS or some similar stupidity. */
 
-	cpu_gdt(cpu)[GDT_ENTRY_TSS].type = 9;
+	get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
 
 	syscall_init();                         /* This sets MSR_*STAR and related */
 	load_TR_desc();				/* This does ltr */
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index c4c5e76..e5c1118 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -297,7 +297,7 @@ static void __cpuinit vsyscall_set_cpu(int cpu)
 	/* Store cpu number in limit so that it can be loaded quickly
 	   in user space in vgetcpu.
 	   12 bits for the CPU and 8 bits for the node. */
-	d = (unsigned long *)(cpu_gdt(cpu) + GDT_ENTRY_PER_CPU);
+	d = (unsigned long *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_PER_CPU);
 	*d = 0x0f40000000000ULL;
 	*d |= cpu;
 	*d |= (node & 0xf) << 12;
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index 230ac6e..1c26dbb 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -48,7 +48,7 @@ static inline void write_ldt_entry(struct desc_struct *ldt,
 }
 
 /* the cpu gdt accessor */
-#define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
+#define get_cpu_gdt_table(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
 
 static inline void load_gdt(const struct desc_ptr *ptr)
 {
@@ -141,15 +141,15 @@ static inline void set_tss_desc(unsigned cpu, void *addr)
 	 * -1? seg base+limit should be pointing to the address of the
 	 * last valid byte
 	 */
-	set_tssldt_descriptor(&cpu_gdt(cpu)[GDT_ENTRY_TSS],
+	set_tssldt_descriptor(&get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS],
 		(unsigned long)addr, DESC_TSS,
 		IO_BITMAP_OFFSET + IO_BITMAP_BYTES + sizeof(unsigned long) - 1);
 }
 
 static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
 {
-	set_tssldt_descriptor(&cpu_gdt(cpu)[GDT_ENTRY_LDT], (unsigned long)addr,
-			      DESC_LDT, size * 8 - 1);
+	set_tssldt_descriptor(&get_cpu_gdt_table(cpu)[GDT_ENTRY_LDT],
+			     (unsigned long)addr, DESC_LDT, size * 8 - 1);
 }
 
 #define LDT_entry_a(info) \
@@ -183,7 +183,7 @@ static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
 static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
 {
 	unsigned int i;
-	u64 *gdt = (u64 *)(cpu_gdt(cpu) + GDT_ENTRY_TLS_MIN);
+	u64 *gdt = (u64 *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_TLS_MIN);
 
 	for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
 		gdt[i] = t->tls_array[i];
-- 
1.4.4.2

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