Re: [RFC v4 17/17] procfs: display the protection-key number associated with a vma

2017-06-27 Thread Michael Ellerman
Ram Pai writes: > Display the pkey number associated with the vma in smaps of a task. > The key will be seen as below: > > VmFlags: rd wr mr mw me dw ac key=0 Why wouldn't we just emit a "ProtectionKey:" line like x86 does? See their arch_show_smap(). You should probably also do what x86 does,

[RFC v4 17/17] procfs: display the protection-key number associated with a vma

2017-06-27 Thread Ram Pai
Display the pkey number associated with the vma in smaps of a task. The key will be seen as below: VmFlags: rd wr mr mw me dw ac key=0 Signed-off-by: Ram Pai --- Documentation/filesystems/proc.txt | 3 ++- fs/proc/task_mmu.c | 22 +++--- 2 files changed, 13 inse