From: Wanpeng Li <wanpeng.li@linux.intel.com>
Date: Wed, 15 Apr 2015 02:24:54 +0000 (+0800)
Subject: kvm: mmu: don't do memslot overflow check
X-Git-Tag: omap-for-v4.1/fixes-rc1~27^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=130005231c9f2090b1b177e2cca9841b562c1784;p=pandora-kernel.git

kvm: mmu: don't do memslot overflow check

As Andres pointed out:

| I don't understand the value of this check here. Are we looking for a
| broken memslot? Shouldn't this be a BUG_ON? Is this the place to care
| about these things? npages is capped to KVM_MEM_MAX_NR_PAGES, i.e.
| 2^31. A 64 bit overflow would be caused by a gigantic gfn_start which
| would be trouble in many other ways.

This patch drops the memslot overflow check to make the codes more simple.

Reviewed-by: Andres Lagar-Cavilla <andreslc@google.com>
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Message-Id: <1429064694-3072-1-git-send-email-wanpeng.li@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

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