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| author | Avi Kivity <avi@redhat.com> | 2010-05-10 11:09:56 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-08-01 09:35:41 +0200 |
| commit | f0f5933a1626c8df7b0bfd227819c66320fb4f0f (patch) | |
| tree | 7ab29539ca98bf11aa3affdfb66d1f2aa55b0214 /Documentation/kvm | |
| parent | KVM: inject #UD if instruction emulation fails and exit to userspace (diff) | |
| download | linux-f0f5933a1626c8df7b0bfd227819c66320fb4f0f.tar.xz linux-f0f5933a1626c8df7b0bfd227819c66320fb4f0f.zip | |
KVM: MMU: Fix free memory accounting race in mmu_alloc_roots()
We drop the mmu lock between freeing memory and allocating the roots; this
allows some other vcpu to sneak in and allocate memory.
While the race is benign (resulting only in temporary overallocation, not oom)
it is simple and easy to fix by moving the freeing close to the allocation.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'Documentation/kvm')
0 files changed, 0 insertions, 0 deletions