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/linux-master/tools/testing/selftests/kvm/
H A Dmemslot_perf_test.cdiff d61a12cb Mon Dec 12 17:16:42 MST 2022 Sean Christopherson <seanjc@google.com> KVM: selftests: Fix divide-by-zero bug in memslot_perf_test

Check that the number of pages per slot is non-zero in get_max_slots()
prior to computing the remaining number of pages. clang generates code
that uses an actual DIV for calculating the remaining, which causes a #DE
if the total number of pages is less than the number of slots.

traps: memslot_perf_te[97611] trap divide error ip:4030c4 sp:7ffd18ae58f0
error:0 in memslot_perf_test[401000+cb000]

Fixes: a69170c65acd ("KVM: selftests: memslot_perf_test: Report optimal memory slots")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221213001653.3852042-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
/linux-master/fs/xfs/
H A Dxfs_qm.cdiff 97611f93 Tue Oct 06 18:50:14 MDT 2020 Kaixu Xia <kaixuxia@tencent.com> xfs: do the ASSERT for the arguments O_{u,g,p}dqpp

If we pass in XFS_QMOPT_{U,G,P}QUOTA flags and different uid/gid/prid
than them currently associated with the inode, the arguments
O_{u,g,p}dqpp shouldn't be NULL, so add the ASSERT for them.

Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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