Hi again..
> FYI
> Found something in Documentation/vm/page_migration (Section B. how
> migrate_pages() works) that kinda confirms our expectations..
> " The refcount of the page is examined and we back out if references
> remain otherwise we know that we are the only one referencing this page
>
Hi,
>
> Since both of us (and no one else joins this thread so far)
> came to the same point, I guess we implicitly agree that
> somehow Linux 2.6.x VM checks this (reference?) counter and
> doesn't swap this kind of page.
>
FYI
Found something in Documentation/vm/page_migration (Section B. h
Hi..
First of all, thank you for sharing your finding. Actually, I came to
the same conclusion too yesterday, but I didn't have enough free time to
explain what I have found completely. Sorry for that...
After digging into the source of get_user_pages I found that at a
certain point,
page_cac
> Hi...
>
> > Hi...
> >> As most of you will already know, one can use get_user_pages to get
a
> >> struct pages list of a certain user space buffer.
> >> While doing this, get_user_pages also locks the pages into physical
> >> mem (preventing them from being swapped out to disk, or moved
within
Hi...
> Hi...
>> As most of you will already know, one can use get_user_pages to get a
>> struct pages list of a certain user space buffer.
>> While doing this, get_user_pages also locks the pages into physical
>> mem (preventing them from being swapped out to disk, or moved within
>> phys mem)
Hi...
As most of you will already know, one can use get_user_pages to get a
struct pages list of a certain user space buffer.
While doing this, get_user_pages also locks the pages into physical mem
(preventing them from being swapped out to disk, or moved within phys
mem) for usage with e.g. DMA.
Please ignore my prvious posting, my apologies to post in HTML, Outlook
tricked me (again)
Below the exact same posting in text format
--
Dear Subscribers,
As most of you will already know, one can use ge
Dear Subscribers,
As most of you will already know, one can use get_user_pages to get a
struct pages list of a certain user space buffer.
While doing this, get_user_pages also locks the pages into physical mem
(preventing them from being swapped out to disk, or moved within phys
mem) for usage wi
