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Diffstat (limited to 'fs/exec.c')
-rw-r--r--fs/exec.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 547a2390baf5..ca89e0e3ef10 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -965,8 +965,8 @@ EXPORT_SYMBOL(read_code);
/*
* Maps the mm_struct mm into the current task struct.
- * On success, this function returns with the mutex
- * exec_update_mutex locked.
+ * On success, this function returns with exec_update_lock
+ * held for writing.
*/
static int exec_mmap(struct mm_struct *mm)
{
@@ -981,7 +981,7 @@ static int exec_mmap(struct mm_struct *mm)
if (old_mm)
sync_mm_rss(old_mm);
- ret = mutex_lock_killable(&tsk->signal->exec_update_mutex);
+ ret = down_write_killable(&tsk->signal->exec_update_lock);
if (ret)
return ret;
@@ -995,7 +995,7 @@ static int exec_mmap(struct mm_struct *mm)
mmap_read_lock(old_mm);
if (unlikely(old_mm->core_state)) {
mmap_read_unlock(old_mm);
- mutex_unlock(&tsk->signal->exec_update_mutex);
+ up_write(&tsk->signal->exec_update_lock);
return -EINTR;
}
}
@@ -1382,7 +1382,7 @@ int begin_new_exec(struct linux_binprm * bprm)
return 0;
out_unlock:
- mutex_unlock(&me->signal->exec_update_mutex);
+ up_write(&me->signal->exec_update_lock);
out:
return retval;
}
@@ -1423,7 +1423,7 @@ void setup_new_exec(struct linux_binprm * bprm)
* some architectures like powerpc
*/
me->mm->task_size = TASK_SIZE;
- mutex_unlock(&me->signal->exec_update_mutex);
+ up_write(&me->signal->exec_update_lock);
mutex_unlock(&me->signal->cred_guard_mutex);
}
EXPORT_SYMBOL(setup_new_exec);