On 2/5/21 2:46 AM, Joao Martins wrote:
...>> If instead you keep npages constant like it naturally wants to be, you
could
just do a "(*ntails)++" in the loop, to take care of *ntails.
I didn't do it as such as I would need to deref @ntails per iteration, so
it felt more efficient to do as
On 2/5/21 4:11 AM, John Hubbard wrote:
> On 2/4/21 12:24 PM, Joao Martins wrote:
>> Add an helper that iterates over head pages in a list of pages. It
>> essentially counts the tails until the next page to process has a
>> different head that the current. This is going to be used by
>>
On 2/4/21 12:24 PM, Joao Martins wrote:
Add an helper that iterates over head pages in a list of pages. It
essentially counts the tails until the next page to process has a
different head that the current. This is going to be used by
unpin_user_pages() family of functions, to batch the head page
Add an helper that iterates over head pages in a list of pages. It
essentially counts the tails until the next page to process has a
different head that the current. This is going to be used by
unpin_user_pages() family of functions, to batch the head page refcount
updates once for all passed
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