Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/x86/linux-2.6-x86 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86/xen: fix DomU boot problem x86: not set node to cpu_to_node if the node is not online x86, i387: fix ptrace leakage using init_fpu()
git-mirror · Mar 4, 2008 · 34f10fc · 34f10fc
2 parents 67171a3 + 87d034f
commit 34f10fc
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Showing 3 changed files with 12 additions and 7 deletions.
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
@@ -132,7 +132,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
 	if (!cpu_has_fxsr)
 		return -ENODEV;
 
-	unlazy_fpu(target);
+	init_fpu(target);
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
 				   &target->thread.i387.fxsave, 0, -1);
@@ -147,7 +147,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
 	if (!cpu_has_fxsr)
 		return -ENODEV;
 
-	unlazy_fpu(target);
+	init_fpu(target);
 	set_stopped_child_used_math(target);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -307,7 +307,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
 	if (!HAVE_HWFP)
 		return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
 
-	unlazy_fpu(target);
+	init_fpu(target);
 
 	if (!cpu_has_fxsr)
 		return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -332,7 +332,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
 	if (!HAVE_HWFP)
 		return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
 
-	unlazy_fpu(target);
+	init_fpu(target);
 	set_stopped_child_used_math(target);
 
 	if (!cpu_has_fxsr)

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
@@ -622,13 +622,17 @@ void __init init_cpu_to_node(void)
 	int i;
 
 	for (i = 0; i < NR_CPUS; i++) {
+		int node;
 		u16 apicid = x86_cpu_to_apicid_init[i];
 
 		if (apicid == BAD_APICID)
 			continue;
-		if (apicid_to_node[apicid] == NUMA_NO_NODE)
+		node = apicid_to_node[apicid];
+		if (node == NUMA_NO_NODE)
 			continue;
-		numa_set_node(i, apicid_to_node[apicid]);
+		if (!node_online(node))
+			continue;
+		numa_set_node(i, node);
 	}
 }
 

diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
@@ -38,7 +38,8 @@ char * __init xen_memory_setup(void)
 	unsigned long max_pfn = xen_start_info->nr_pages;
 
 	e820.nr_map = 0;
-	add_memory_region(0, PFN_PHYS(max_pfn), E820_RAM);
+	add_memory_region(0, LOWMEMSIZE(), E820_RAM);
+	add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
 
 	return "Xen";
 }