[PATCH 2/4] mm,fs: Add vm_ops->name as an alternative to arch_vma_name

arch_vma_name sucks. It's a silly hack, and it's annoying to implement correctly. In fact, AFAICS, even the straightforward x86 implementation is incorrect (I suspect that it breaks if the vdso mapping is split or gets remapped). This adds a new vm_ops->name operation that can replace it. The

[PATCH 2/4] mm,fs: Add vm_ops-name as an alternative to arch_vma_name

arch_vma_name sucks. It's a silly hack, and it's annoying to implement correctly. In fact, AFAICS, even the straightforward x86 implementation is incorrect (I suspect that it breaks if the vdso mapping is split or gets remapped). This adds a new vm_ops-name operation that can replace it. The