On Mon, May 22, 2017 at 09:12:42AM +0300, Mike Rapoport wrote: > Currently applications can explicitly enable or disable THP for a memory > region using MADV_HUGEPAGE or MADV_NOHUGEPAGE. However, once either of > these advises is used, the region will always have > VM_HUGEPAGE/VM_NOHUGEPAGE flag set in vma->vm_flags. > The MADV_CLR_HUGEPAGE resets both these flags and allows managing THP in > the region according to system-wide settings.
Seems reasonable. But could you describe an use-case when it's useful in real world. And the name is bad. But I don't have better suggestion. At least do not abbreviate CLEAR. Saving two letters doesn't worth it. Maybe RESET instead? -- Kirill A. Shutemov
