From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Wed, 16 Apr 2008 20:19:06 +0000 (-0300)
Subject: KVM: MMU: kvm_pv_mmu_op should not take mmap_sem
X-Git-Tag: v2.6.26-rc1~1028^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=960b3991698872f68f09d51f4c2794ad484fe1fd;p=pandora-kernel.git

KVM: MMU: kvm_pv_mmu_op should not take mmap_sem

kvm_pv_mmu_op should not take mmap_sem. All gfn_to_page() callers down
in the MMU processing will take it if necessary, so as it is it can
deadlock.

Apparently a leftover from the days before slots_lock.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

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