From 89133786f9408d53361874a8c784fff150fc7f7c Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 29 Jul 2012 20:22:38 +0200 Subject: [PATCH] uprobes: Remove insert_vm_struct()->uprobe_mmap() Remove 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 Acked-by: Srikar Dronamraju Cc: Anton Arapov Cc: Srikar Dronamraju Link: http://lkml.kernel.org/r/20120729182238.GA20349@redhat.com Signed-off-by: Ingo Molnar --- mm/mmap.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/mm/mmap.c b/mm/mmap.c index e5a46149d1f..4fe2697339e 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; } -- 2.11.4.GIT