如何将巨大的tlb（巨大的页面）挂载为文件系统？

Question

Here is my machine details (ubuntu):

$uname -a

Linux rex-think 3.13.0-46-generic #76-Ubuntu SMP Thu Feb 26 18:52:13 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

I have enabled huge page in root user with:

$echo 20 > /proc/sys/vm/nr_hugepages

Now I want to mount huge page as a file system and open it for read/write, eg, using the C API below

#define FILE_NAME "/mnt/hugepages/hello"
fd = open(FILE_NAME, O_CREAT | O_RDWR, 0755);    // writing to huge page using file sys API

But I am not sure how to mount the huge page. In /proc/sys/vm/, I can see

hugetlb_shm_group hugepages_treat_as_movable

but from the description here , I dont think they are the files I am looking for.

Answer 1

要将巨大的tlp挂载为文件系统，请使用以下命令

mount -t hugetlbfs nodev /mnt/huge