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

[linux-2.6] / fs / exec.c

diff --git a/fs/exec.c b/fs/exec.c
index 5a4e3acc2e9fcfc549cf2d0330cb80c919e37c6a..22533cce061165023d43cfedac7310c2e4d414b7 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -135,7 +135,7 @@ asmlinkage long sys_uselib(const char __user * library)
        if (!S_ISREG(nd.dentry->d_inode->i_mode))
                goto exit;
 
-       error = permission(nd.dentry->d_inode, MAY_READ | MAY_EXEC, &nd);
+       error = vfs_permission(&nd, MAY_READ | MAY_EXEC);
        if (error)
                goto exit;
 
@@ -306,9 +306,6 @@ void install_arg_page(struct vm_area_struct *vma,
                        struct page *page, unsigned long address)
 {
        struct mm_struct *mm = vma->vm_mm;
-       pgd_t * pgd;
-       pud_t * pud;
-       pmd_t * pmd;
        pte_t * pte;
        spinlock_t *ptl;
 
@@ -316,14 +313,7 @@ void install_arg_page(struct vm_area_struct *vma,
                goto out;
 
        flush_dcache_page(page);
-       pgd = pgd_offset(mm, address);
-       pud = pud_alloc(mm, pgd, address);
-       if (!pud)
-               goto out;
-       pmd = pmd_alloc(mm, pud, address);
-       if (!pmd)
-               goto out;
-       pte = pte_alloc_map_lock(mm, pmd, address, &ptl);
+       pte = get_locked_pte(mm, address, &ptl);
        if (!pte)
                goto out;
        if (!pte_none(*pte)) {
@@ -495,7 +485,7 @@ struct file *open_exec(const char *name)
                file = ERR_PTR(-EACCES);
                if (!(nd.mnt->mnt_flags & MNT_NOEXEC) &&
                    S_ISREG(inode->i_mode)) {
-                       int err = permission(inode, MAY_EXEC, &nd);
+                       int err = vfs_permission(&nd, MAY_EXEC);
                        if (!err && !(inode->i_mode & 0111))
                                err = -EACCES;
                        file = ERR_PTR(err);
@@ -668,7 +658,7 @@ static inline int de_thread(struct task_struct *tsk)
        if (!thread_group_leader(current)) {
                struct task_struct *parent;
                struct dentry *proc_dentry1, *proc_dentry2;
-               unsigned long exit_state, ptrace;
+               unsigned long ptrace;
 
                /*
                 * Wait for the thread group leader to be a zombie.
@@ -726,15 +716,15 @@ static inline int de_thread(struct task_struct *tsk)
                list_del(&current->tasks);
                list_add_tail(&current->tasks, &init_task.tasks);
                current->exit_signal = SIGCHLD;
-               exit_state = leader->exit_state;
+
+               BUG_ON(leader->exit_state != EXIT_ZOMBIE);
+               leader->exit_state = EXIT_DEAD;
 
                write_unlock_irq(&tasklist_lock);
                spin_unlock(&leader->proc_lock);
                spin_unlock(&current->proc_lock);
                proc_pid_flush(proc_dentry1);
                proc_pid_flush(proc_dentry2);
-
-               BUG_ON(exit_state != EXIT_ZOMBIE);
         }
 
        /*
@@ -896,7 +886,7 @@ int flush_old_exec(struct linux_binprm * bprm)
        flush_thread();
 
        if (bprm->e_uid != current->euid || bprm->e_gid != current->egid || 
-           permission(bprm->file->f_dentry->d_inode,MAY_READ, NULL) ||
+           file_permission(bprm->file, MAY_READ) ||
            (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)) {
                suid_keys(current);
                current->mm->dumpable = suid_dumpable;