ipv6: Remove options header when setsockopt's optlen is 0

[net-next-2.6.git] / fs / exec.c

diff --git a/fs/exec.c b/fs/exec.c
index a13883903ee98587951681e143c36d9712460515..9448f1b50b4a07a8969d8587d044094bbfcfce8a 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -24,6 +24,7 @@
 
 #include <linux/slab.h>
 #include <linux/file.h>
+#include <linux/fdtable.h>
 #include <linux/mman.h>
 #include <linux/a.out.h>
 #include <linux/stat.h>
@@ -735,7 +736,7 @@ static int exec_mmap(struct mm_struct *mm)
        tsk->active_mm = mm;
        activate_mm(active_mm, mm);
        task_unlock(tsk);
-       mm_update_next_owner(mm);
+       mm_update_next_owner(old_mm);
        arch_pick_mmap_layout(mm);
        if (old_mm) {
                up_read(&old_mm->mmap_sem);
@@ -766,9 +767,7 @@ static int de_thread(struct task_struct *tsk)
 
        /*
         * Kill all other threads in the thread group.
-        * We must hold tasklist_lock to call zap_other_threads.
         */
-       read_lock(&tasklist_lock);
        spin_lock_irq(lock);
        if (signal_group_exit(sig)) {
                /*
@@ -776,21 +775,10 @@ static int de_thread(struct task_struct *tsk)
                 * return so that the signal is processed.
                 */
                spin_unlock_irq(lock);
-               read_unlock(&tasklist_lock);
                return -EAGAIN;
        }
-
-       /*
-        * child_reaper ignores SIGKILL, change it now.
-        * Reparenting needs write_lock on tasklist_lock,
-        * so it is safe to do it under read_lock.
-        */
-       if (unlikely(tsk->group_leader == task_child_reaper(tsk)))
-               task_active_pid_ns(tsk)->child_reaper = tsk;
-
        sig->group_exit_task = tsk;
        zap_other_threads(tsk);
-       read_unlock(&tasklist_lock);
 
        /* Account for the thread group leader hanging around: */
        count = thread_group_leader(tsk) ? 1 : 2;
@@ -811,7 +799,7 @@ static int de_thread(struct task_struct *tsk)
        if (!thread_group_leader(tsk)) {
                leader = tsk->group_leader;
 
-               sig->notify_count = -1;
+               sig->notify_count = -1; /* for exit_notify() */
                for (;;) {
                        write_lock_irq(&tasklist_lock);
                        if (likely(leader->exit_state))
@@ -821,6 +809,8 @@ static int de_thread(struct task_struct *tsk)
                        schedule();
                }
 
+               if (unlikely(task_child_reaper(tsk) == leader))
+                       task_active_pid_ns(tsk)->child_reaper = tsk;
                /*
                 * The only record we have of the real-time age of a
                 * process, regardless of execs it's done, is start_time.
@@ -870,6 +860,7 @@ static int de_thread(struct task_struct *tsk)
 
 no_thread_group:
        exit_itimers(sig);
+       flush_itimer_signals();
        if (leader)
                release_task(leader);
 
@@ -1261,6 +1252,12 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 
 EXPORT_SYMBOL(search_binary_handler);
 
+void free_bprm(struct linux_binprm *bprm)
+{
+       free_arg_pages(bprm);
+       kfree(bprm);
+}
+
 /*
  * sys_execve() executes a new program.
  */
@@ -1330,17 +1327,15 @@ int do_execve(char * filename,
        retval = search_binary_handler(bprm,regs);
        if (retval >= 0) {
                /* execve success */
-               free_arg_pages(bprm);
                security_bprm_free(bprm);
                acct_update_integrals(current);
-               kfree(bprm);
+               free_bprm(bprm);
                if (displaced)
                        put_files_struct(displaced);
                return retval;
        }
 
 out:
-       free_arg_pages(bprm);
        if (bprm->security)
                security_bprm_free(bprm);
 
@@ -1354,7 +1349,7 @@ out_file:
                fput(bprm->file);
        }
 out_kfree:
-       kfree(bprm);
+       free_bprm(bprm);
 
 out_files:
        if (displaced)