* Oleg Nesterov <o...@redhat.com> [2012-07-08 22:30:11]: > Kill insert_vm_struct()->uprobe_mmap(). It is not needed, nobody > except arch/ia64/kernel/perfmon.c uses insert_vm_struct(vma) with > vma->vm_file != NULL. > > And it is wrong. Again, get_user_pages() can not succeed before > vma_link(vma) makes is visible to find_vma(). And even if this > worked, we must not insert the new bp before this mapping is > visible to vma_prio_tree_foreach() for uprobe_unregister(). > > Signed-off-by: Oleg Nesterov <o...@redhat.com>
Acked-by: Srikar Dronamraju <sri...@linux.vnet.ibm.com> > --- > mm/mmap.c | 3 --- > 1 files changed, 0 insertions(+), 3 deletions(-) > > diff --git a/mm/mmap.c b/mm/mmap.c > index e5a4614..4fe2697 100644 > --- a/mm/mmap.c > +++ b/mm/mmap.c > @@ -2345,9 +2345,6 @@ int insert_vm_struct(struct mm_struct * mm, struct > vm_area_struct * vma) > security_vm_enough_memory_mm(mm, vma_pages(vma))) > return -ENOMEM; > > - if (vma->vm_file && uprobe_mmap(vma)) > - return -EINVAL; > - > vma_link(mm, vma, prev, rb_link, rb_parent); > return 0; > } > -- > 1.5.5.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
