shift pages in mmap

Hi,

how implement fast page alligned shift (cyclic rotate) pages in anonymous mmap ?

--
Konstantin

Do you mean mremap(2) ?

"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

RvR> Do you mean mremap(2) ?

not exactly, i found remap_file_pages(2) in 2.6

but i already wrote this (mmaped pipe) without any remaping by only mmaping same file twice.

+------------+------------+
|  MAP       |  MAP       |
+------------+------------+
       ^DATADATA^
       |        |
        read ->  write ->

like queue with continuously block for read/write.

--
Konstantin