Merge branches 'core-ipi-for-linus', 'core-locking-for-linus', 'traci…

…ng-fixes-for-linus', 'x86-debug-for-linus', 'x86-doc-for-linus', 'x86-gpu-for-linus' and 'x86-rlimit-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: generic-ipi: Optimize accesses by using DEFINE_PER_CPU_SHARED_ALIGNED for IPI data * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: plist: Fix grammar mistake, and c-style mistake * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: kprobes: Add mcount to the kprobes blacklist * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86_64: Print modules like i386 does * 'x86-doc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Put 'nopat' in kernel-parameters * 'x86-gpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-64: Allow fbdev primary video code * 'x86-rlimit-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Use helpers for rlimits
aixiaorenzhe · Feb 28, 2010 · f91b22c · f91b22c
8 parents 847f9c6 + e03bcb6 + 9ca94d7 + 8b833c5 + f266d7f + 016ddd9 + 477346f + 2854e72
commit f91b22c
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Showing 9 changed files with 14 additions and 15 deletions.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
@@ -1738,6 +1738,9 @@ and is between 256 and 4096 characters. It is defined in the file
 	nomfgpt		[X86-32] Disable Multi-Function General Purpose
 			Timer usage (for AMD Geode machines).
 
+	nopat		[X86] Disable PAT (page attribute table extension of
+			pagetables) support.
+
 	norandmaps	Don't use address space randomization.  Equivalent to
 			echo 0 > /proc/sys/kernel/randomize_va_space
 

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
@@ -135,9 +135,7 @@ drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
 # suspend and hibernation support
 drivers-$(CONFIG_PM) += arch/x86/power/
 
-ifeq ($(CONFIG_X86_32),y)
 drivers-$(CONFIG_FB) += arch/x86/video/
-endif
 
 ####
 # boot loader support. Several targets are kept for legacy purposes

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
@@ -297,7 +297,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	 * size limits imposed on them by creating programs with large
 	 * arrays in the data or bss.
 	 */
-	rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
+	rlim = rlimit(RLIMIT_DATA);
 	if (rlim >= RLIM_INFINITY)
 		rlim = ~0;
 	if (ex.a_data + ex.a_bss > rlim)

diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/fb.h
@@ -12,10 +12,6 @@ static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
 		pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
 }
 
-#ifdef CONFIG_X86_32
 extern int fb_is_primary_device(struct fb_info *info);
-#else
-static inline int fb_is_primary_device(struct fb_info *info) { return 0; }
-#endif
 
 #endif /* _ASM_X86_FB_H */
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
@@ -291,6 +291,7 @@ void show_registers(struct pt_regs *regs)
 
 	sp = regs->sp;
 	printk("CPU %d ", cpu);
+	print_modules();
 	__show_regs(regs, 1);
 	printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
 		cur->comm, cur->pid, task_thread_info(cur), cur);

diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
@@ -71,7 +71,7 @@ static int mmap_is_legacy(void)
 	if (current->personality & ADDR_COMPAT_LAYOUT)
 		return 1;
 
-	if (current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY)
+	if (rlimit(RLIMIT_STACK) == RLIM_INFINITY)
 		return 1;
 
 	return sysctl_legacy_va_layout;
@@ -96,7 +96,7 @@ static unsigned long mmap_rnd(void)
 
 static unsigned long mmap_base(void)
 {
-	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
+	unsigned long gap = rlimit(RLIMIT_STACK);
 
 	if (gap < MIN_GAP)
 		gap = MIN_GAP;

diff --git a/include/linux/plist.h b/include/linux/plist.h
@@ -45,7 +45,7 @@
  * the insertion of new nodes. There are no nodes with duplicate
  * priorites on the list.
  *
- * The nodes on the node_list is ordered by priority and can contain
+ * The nodes on the node_list are ordered by priority and can contain
  * entries which have the same priority. Those entries are ordered
  * FIFO
  *
@@ -265,7 +265,7 @@ static inline int plist_node_empty(const struct plist_node *node)
  *
  * Assumes the plist is _not_ empty.
  */
-static inline struct plist_node* plist_first(const struct plist_head *head)
+static inline struct plist_node *plist_first(const struct plist_head *head)
 {
 	return list_entry(head->node_list.next,
 			  struct plist_node, plist.node_list);

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
@@ -93,6 +93,7 @@ static struct kprobe_blackpoint kprobe_blacklist[] = {
 	{"native_get_debugreg",},
 	{"irq_entries_start",},
 	{"common_interrupt",},
+	{"mcount",},	/* mcount can be called from everywhere */
 	{NULL}    /* Terminator */
 };
 

diff --git a/kernel/smp.c b/kernel/smp.c
@@ -12,8 +12,6 @@
 #include <linux/smp.h>
 #include <linux/cpu.h>
 
-static DEFINE_PER_CPU(struct call_single_queue, call_single_queue);
-
 static struct {
 	struct list_head	queue;
 	raw_spinlock_t		lock;
@@ -33,12 +31,14 @@ struct call_function_data {
 	cpumask_var_t		cpumask;
 };
 
+static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_function_data, cfd_data);
+
 struct call_single_queue {
 	struct list_head	list;
 	raw_spinlock_t		lock;
 };
 
-static DEFINE_PER_CPU(struct call_function_data, cfd_data);
+static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_single_queue, call_single_queue);
 
 static int
 hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
@@ -256,7 +256,7 @@ void generic_smp_call_function_single_interrupt(void)
 	}
 }
 
-static DEFINE_PER_CPU(struct call_single_data, csd_data);
+static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_single_data, csd_data);
 
 /*
  * smp_call_function_single - Run a function on a specific CPU