x86/intel_rdt: Create character device exposing pseudo-locked region
After a pseudo-locked region is created it needs to be made available to user space for usage. A character device supporting mmap() is created for each pseudo-locked region. A user space application can now use mmap() system call to map pseudo-locked region into its virtual address space. Signed-off-by:Reinette Chatre <reinette.chatre@intel.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: vikas.shivappa@linux.intel.com Cc: gavin.hindman@intel.com Cc: jithu.joseph@intel.com Cc: dave.hansen@intel.com Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/fccbb9b20f07655ab0a4df9fa1c1babc0288aea0.1529706536.git.reinette.chatre@intel.com
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