From: Marcelo Tosatti Date: Wed, 15 Jul 2009 18:34:41 +0000 (-0300) Subject: KVM: MMU: fix missing locking in alloc_mmu_pages X-Git-Tag: v2.6.32-rc1~693^2~78 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a1ac77110ee3e8d8dfdef8442f3b30b3d83e6a2;p=pandora-kernel.git KVM: MMU: fix missing locking in alloc_mmu_pages n_requested_mmu_pages/n_free_mmu_pages are used by kvm_mmu_change_mmu_pages to calculate the number of pages to zap. alloc_mmu_pages, called from the vcpu initialization path, modifies this variables without proper locking, which can result in a negative value in kvm_mmu_change_mmu_pages (say, with cpu hotplug). Signed-off-by: Marcelo Tosatti --- Reading git-diff-tree failed