Re[2]: [QUESTION] shift pages in mmap

[Konstantin G. Khlebnikov]

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

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

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