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authorEric Paris <eparis@redhat.com>2014-03-07 11:41:32 -0500
committerEric Paris <eparis@redhat.com>2014-03-07 11:41:32 -0500
commitb7d3622a39fde7658170b7f3cf6c6889bb8db30d (patch)
tree64f4e781ecb2a85d675e234072b988560bcd25f1 /kernel/fork.c
parentf3411cb2b2e396a41ed3a439863f028db7140a34 (diff)
parentd8ec26d7f8287f5788a494f56e8814210f0e64be (diff)
Merge tag 'v3.13' into for-3.15
Linux 3.13 Conflicts: include/net/xfrm.h Simple merge where v3.13 removed 'extern' from definitions and the audit tree did s/u32/unsigned int/ to the same definitions.
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 086fe73ad6bd..dfa736c98d17 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -532,11 +532,12 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
532 mm->flags = (current->mm) ? 532 mm->flags = (current->mm) ?
533 (current->mm->flags & MMF_INIT_MASK) : default_dump_filter; 533 (current->mm->flags & MMF_INIT_MASK) : default_dump_filter;
534 mm->core_state = NULL; 534 mm->core_state = NULL;
535 mm->nr_ptes = 0; 535 atomic_long_set(&mm->nr_ptes, 0);
536 memset(&mm->rss_stat, 0, sizeof(mm->rss_stat)); 536 memset(&mm->rss_stat, 0, sizeof(mm->rss_stat));
537 spin_lock_init(&mm->page_table_lock); 537 spin_lock_init(&mm->page_table_lock);
538 mm_init_aio(mm); 538 mm_init_aio(mm);
539 mm_init_owner(mm, p); 539 mm_init_owner(mm, p);
540 clear_tlb_flush_pending(mm);
540 541
541 if (likely(!mm_alloc_pgd(mm))) { 542 if (likely(!mm_alloc_pgd(mm))) {
542 mm->def_flags = 0; 543 mm->def_flags = 0;
@@ -560,7 +561,7 @@ static void check_mm(struct mm_struct *mm)
560 "mm:%p idx:%d val:%ld\n", mm, i, x); 561 "mm:%p idx:%d val:%ld\n", mm, i, x);
561 } 562 }
562 563
563#ifdef CONFIG_TRANSPARENT_HUGEPAGE 564#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
564 VM_BUG_ON(mm->pmd_huge_pte); 565 VM_BUG_ON(mm->pmd_huge_pte);
565#endif 566#endif
566} 567}
@@ -814,12 +815,9 @@ struct mm_struct *dup_mm(struct task_struct *tsk)
814 memcpy(mm, oldmm, sizeof(*mm)); 815 memcpy(mm, oldmm, sizeof(*mm));
815 mm_init_cpumask(mm); 816 mm_init_cpumask(mm);
816 817
817#ifdef CONFIG_TRANSPARENT_HUGEPAGE 818#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
818 mm->pmd_huge_pte = NULL; 819 mm->pmd_huge_pte = NULL;
819#endif 820#endif
820#ifdef CONFIG_NUMA_BALANCING
821 mm->first_nid = NUMA_PTE_SCAN_INIT;
822#endif
823 if (!mm_init(mm, tsk)) 821 if (!mm_init(mm, tsk))
824 goto fail_nomem; 822 goto fail_nomem;
825 823
@@ -1174,7 +1172,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
1174 * do not allow it to share a thread group or signal handlers or 1172 * do not allow it to share a thread group or signal handlers or
1175 * parent with the forking task. 1173 * parent with the forking task.
1176 */ 1174 */
1177 if (clone_flags & (CLONE_SIGHAND | CLONE_PARENT)) { 1175 if (clone_flags & CLONE_SIGHAND) {
1178 if ((clone_flags & (CLONE_NEWUSER | CLONE_NEWPID)) || 1176 if ((clone_flags & (CLONE_NEWUSER | CLONE_NEWPID)) ||
1179 (task_active_pid_ns(current) != 1177 (task_active_pid_ns(current) !=
1180 current->nsproxy->pid_ns_for_children)) 1178 current->nsproxy->pid_ns_for_children))
@@ -1313,7 +1311,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
1313#endif 1311#endif
1314 1312
1315 /* Perform scheduler related setup. Assign this task to a CPU. */ 1313 /* Perform scheduler related setup. Assign this task to a CPU. */
1316 sched_fork(p); 1314 sched_fork(clone_flags, p);
1317 1315
1318 retval = perf_event_init_task(p); 1316 retval = perf_event_init_task(p);
1319 if (retval) 1317 if (retval)
@@ -1373,7 +1371,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
1373 INIT_LIST_HEAD(&p->pi_state_list); 1371 INIT_LIST_HEAD(&p->pi_state_list);
1374 p->pi_state_cache = NULL; 1372 p->pi_state_cache = NULL;
1375#endif 1373#endif
1376 uprobe_copy_process(p);
1377 /* 1374 /*
1378 * sigaltstack should be cleared when sharing the same VM 1375 * sigaltstack should be cleared when sharing the same VM
1379 */ 1376 */
@@ -1490,6 +1487,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
1490 perf_event_fork(p); 1487 perf_event_fork(p);
1491 1488
1492 trace_task_newtask(p, clone_flags); 1489 trace_task_newtask(p, clone_flags);
1490 uprobe_copy_process(p, clone_flags);
1493 1491
1494 return p; 1492 return p;
1495 1493