KVM: x86/mmu: Avoid reacquiring RCU if TDP MMU fails to allocate an SP

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Avoid needlessly reacquiring the RCU read lock if the TDP MMU fails to
allocate a shadow page during eager page splitting. Opportunistically
drop the local variable ret as well now that it's no longer necessary.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20240611220512.2426439-5-dmatlack@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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David Matlack 2024-06-11 15:05:12 -07:00 • committed by Sean Christopherson

parent 3d4a5a45ca

commit 0089c055b5

1 changed files with 5 additions and 7 deletions

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arch/x86/kvm/mmu/tdp_mmu.c

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