From: Oleg Nesterov <oleg@redhat.com>
Date: Fri, 15 Jun 2012 15:43:22 +0000 (+0200)
Subject: uprobes: Valid_vma() should reject VM_HUGETLB
X-Git-Tag: v3.6-rc1~167^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea131377148cdfe90641b42ae9aa5a6b3a4fa327;p=pandora-kernel.git

uprobes: Valid_vma() should reject VM_HUGETLB

__replace_page() obviously can't work with the hugetlbfs
mappings, uprobe_register() will likely crash the kernel. Change
valid_vma() to check VM_HUGETLB as well.

As for PageTransHuge() no need to worry, vma->vm_file != NULL.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anton Arapov <anton@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120615154322.GA9561@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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