Fw: Linux v2.5.54

["dada1" <dada1@cosmosbay.com>]

>   o remove hugetlb syscalls

So finally they did it ...

But mmap(NULL, ...) is not yet supported, this is really sad.

And arch/i386/Kconfig and Documentation/vm/hugetlbpage.txt still document
the sys_alloc_hugepages()/sys_free_hugepages() syscalls.

A simple program that doesnt know at all how the memory is layed out by
kernel/glibc can not easily get some 4Mo pages in a single syscall.
sys_alloc_hugepage() was very convenient for that.

Another problem :

if you mount hugetlbfs in /huge, then create a file /huge/BIG of size 4Mo,
then use :

dd if=/huge/BIG of=/dev/null

the dd process hangs on 'D' state : the read() syscall just hang forever.

Thanks