On 2/3/21 11:28 PM, John Hubbard wrote:
> On 2/3/21 2:00 PM, Joao Martins wrote:
>> Rather than decrementing the head page refcount one by one, we
>> walk the page array and checking which belong to the same
>> compound_head. Later on we decrement the calculated amount
>> of references in a sing
On 2/3/21 2:00 PM, Joao Martins wrote:
Rather than decrementing the head page refcount one by one, we
walk the page array and checking which belong to the same
compound_head. Later on we decrement the calculated amount
of references in a single write to the head page. To that
end switch to for_ea
Rather than decrementing the head page refcount one by one, we
walk the page array and checking which belong to the same
compound_head. Later on we decrement the calculated amount
of references in a single write to the head page. To that
end switch to for_each_compound_head() does most of the work.
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