On 02/29, Michal Hocko wrote: > > @@ -267,7 +267,10 @@ static int __bprm_mm_init(struct linux_binprm *bprm) > if (!vma) > return -ENOMEM; > > - down_write(&mm->mmap_sem); > + if (down_write_killable(&mm->mmap_sem)) { > + err = -EINTR; > + goto err_free; > + } > vma->vm_mm = mm; I won't argue, but this looks unnecessary. Nobody else can see this new mm, down_write() can't block. In fact I think we can just remove down_write/up_write here. Except perhaps there is lockdep_assert_held() somewhere in these paths. Oleg. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>