At 11:35 +0100 on 01 Dec (1638358515), Jan Beulich wrote:
> paging_mfn_is_dirty() is moderately expensive, so avoid its use unless
> its result might actually change anything. This means moving the
> surrounding if() down below all other checks that can result in clearing
> _PAGE_RW from sflags,
On 01.12.2021 19:33, Andrew Cooper wrote:
> On 01/12/2021 10:35, Jan Beulich wrote:
>> paging_mfn_is_dirty() is moderately expensive, so avoid its use unless
>> its result might actually change anything. This means moving the
>> surrounding if() down below all other checks that can result in
On 01/12/2021 10:35, Jan Beulich wrote:
> paging_mfn_is_dirty() is moderately expensive, so avoid its use unless
> its result might actually change anything. This means moving the
> surrounding if() down below all other checks that can result in clearing
> _PAGE_RW from sflags, in order to then
paging_mfn_is_dirty() is moderately expensive, so avoid its use unless
its result might actually change anything. This means moving the
surrounding if() down below all other checks that can result in clearing
_PAGE_RW from sflags, in order to then check whether _PAGE_RW is
actually still set there
