KVM: VMX: Always return old for clear_flush_young() when using EPT

[pandora-kernel.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index abb3ed6..7ce2ebe 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -27,6 +27,7 @@
 #include <linux/key.h>
 #include <linux/binfmts.h>
 #include <linux/mman.h>
+#include <linux/mmu_notifier.h>
 #include <linux/fs.h>
 #include <linux/nsproxy.h>
 #include <linux/capability.h>
@@ -414,6 +415,7 @@ static struct mm_struct * mm_init(struct mm_struct * mm, struct task_struct *p)
 
        if (likely(!mm_alloc_pgd(mm))) {
                mm->def_flags = 0;
+               mmu_notifier_mm_init(mm);
                return mm;
        }
 
@@ -446,6 +448,7 @@ void __mmdrop(struct mm_struct *mm)
        BUG_ON(mm == &init_mm);
        mm_free_pgd(mm);
        destroy_context(mm);
+       mmu_notifier_mm_destroy(mm);
        free_mm(mm);
 }
 EXPORT_SYMBOL_GPL(__mmdrop);
@@ -657,13 +660,6 @@ static struct fs_struct *__copy_fs_struct(struct fs_struct *old)
                path_get(&old->root);
                fs->pwd = old->pwd;
                path_get(&old->pwd);
-               if (old->altroot.dentry) {
-                       fs->altroot = old->altroot;
-                       path_get(&old->altroot);
-               } else {
-                       fs->altroot.mnt = NULL;
-                       fs->altroot.dentry = NULL;
-               }
                read_unlock(&old->lock);
        }
        return fs;
@@ -813,12 +809,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
        sig->nvcsw = sig->nivcsw = sig->cnvcsw = sig->cnivcsw = 0;
        sig->min_flt = sig->maj_flt = sig->cmin_flt = sig->cmaj_flt = 0;
        sig->inblock = sig->oublock = sig->cinblock = sig->coublock = 0;
-#ifdef CONFIG_TASK_XACCT
-       sig->rchar = sig->wchar = sig->syscr = sig->syscw = 0;
-#endif
-#ifdef CONFIG_TASK_IO_ACCOUNTING
-       memset(&sig->ioac, 0, sizeof(sig->ioac));
-#endif
+       task_io_accounting_init(&sig->ioac);
        sig->sum_sched_runtime = 0;
        INIT_LIST_HEAD(&sig->cpu_timers[0]);
        INIT_LIST_HEAD(&sig->cpu_timers[1]);
@@ -1001,13 +992,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
        p->last_switch_timestamp = 0;
 #endif
 
-#ifdef CONFIG_TASK_XACCT
-       p->rchar = 0;           /* I/O counter: bytes read */
-       p->wchar = 0;           /* I/O counter: bytes written */
-       p->syscr = 0;           /* I/O counter: read syscalls */
-       p->syscw = 0;           /* I/O counter: write syscalls */
-#endif
-       task_io_accounting_init(p);
+       task_io_accounting_init(&p->ioac);
        acct_clear_integrals(p);
 
        p->it_virt_expires = cputime_zero;