migrate.c (eb42c75878e4d13941dcbcf2ef1027c257b099a6) migrate.c (76aac0e9a17742e60d408be1a706e9aaad370891)
1/*
2 * Memory Migration functionality - linux/mm/migration.c
3 *
4 * Copyright (C) 2006 Silicon Graphics, Inc., Christoph Lameter
5 *
6 * Page migration was first developed in the context of the memory hotplug
7 * project. The main authors of the migration code are:
8 *

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836static int do_move_page_to_node_array(struct mm_struct *mm,
837 struct page_to_node *pm,
838 int migrate_all)
839{
840 int err;
841 struct page_to_node *pp;
842 LIST_HEAD(pagelist);
843
1/*
2 * Memory Migration functionality - linux/mm/migration.c
3 *
4 * Copyright (C) 2006 Silicon Graphics, Inc., Christoph Lameter
5 *
6 * Page migration was first developed in the context of the memory hotplug
7 * project. The main authors of the migration code are:
8 *

--- 827 unchanged lines hidden (view full) ---

836static int do_move_page_to_node_array(struct mm_struct *mm,
837 struct page_to_node *pm,
838 int migrate_all)
839{
840 int err;
841 struct page_to_node *pp;
842 LIST_HEAD(pagelist);
843
844 migrate_prep();
845 down_read(&mm->mmap_sem);
846
847 /*
848 * Build a list of pages to migrate
849 */
844 down_read(&mm->mmap_sem);
845
846 /*
847 * Build a list of pages to migrate
848 */
849 migrate_prep();
850 for (pp = pm; pp->node != MAX_NUMNODES; pp++) {
851 struct vm_area_struct *vma;
852 struct page *page;
853
854 /*
855 * A valid page pointer that will not match any of the
856 * pages that will be moved.
857 */

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1043asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
1044 const void __user * __user *pages,
1045 const int __user *nodes,
1046 int __user *status, int flags)
1047{
1048 struct task_struct *task;
1049 struct mm_struct *mm;
1050 int err;
850 for (pp = pm; pp->node != MAX_NUMNODES; pp++) {
851 struct vm_area_struct *vma;
852 struct page *page;
853
854 /*
855 * A valid page pointer that will not match any of the
856 * pages that will be moved.
857 */

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1043asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
1044 const void __user * __user *pages,
1045 const int __user *nodes,
1046 int __user *status, int flags)
1047{
1048 struct task_struct *task;
1049 struct mm_struct *mm;
1050 int err;
1051 uid_t uid, euid;
1051
1052 /* Check flags */
1053 if (flags & ~(MPOL_MF_MOVE|MPOL_MF_MOVE_ALL))
1054 return -EINVAL;
1055
1056 if ((flags & MPOL_MF_MOVE_ALL) && !capable(CAP_SYS_NICE))
1057 return -EPERM;
1058

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1070 return -EINVAL;
1071
1072 /*
1073 * Check if this process has the right to modify the specified
1074 * process. The right exists if the process has administrative
1075 * capabilities, superuser privileges or the same
1076 * userid as the target process.
1077 */
1052
1053 /* Check flags */
1054 if (flags & ~(MPOL_MF_MOVE|MPOL_MF_MOVE_ALL))
1055 return -EINVAL;
1056
1057 if ((flags & MPOL_MF_MOVE_ALL) && !capable(CAP_SYS_NICE))
1058 return -EPERM;
1059

--- 11 unchanged lines hidden (view full) ---

1071 return -EINVAL;
1072
1073 /*
1074 * Check if this process has the right to modify the specified
1075 * process. The right exists if the process has administrative
1076 * capabilities, superuser privileges or the same
1077 * userid as the target process.
1078 */
1078 if ((current->euid != task->suid) && (current->euid != task->uid) &&
1079 (current->uid != task->suid) && (current->uid != task->uid) &&
1079 uid = current_uid();
1080 euid = current_euid();
1081 if (euid != task->suid && euid != task->uid &&
1082 uid != task->suid && uid != task->uid &&
1080 !capable(CAP_SYS_NICE)) {
1081 err = -EPERM;
1082 goto out;
1083 }
1084
1085 err = security_task_movememory(task);
1086 if (err)
1087 goto out;

--- 34 unchanged lines hidden --- 		1083 !capable(CAP_SYS_NICE)) {
1084 err = -EPERM;
1085 goto out;
1086 }
1087
1088 err = security_task_movememory(task);
1089 if (err)
1090 goto out;

--- 34 unchanged lines hidden ---