Messages in this thread | | | Date | Thu, 29 Oct 2015 16:14:00 +0900 | Subject | Re: [PATCH v2 5/5] block: enable dax for raw block devices | From | Dan Williams <> |
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On Thu, Oct 29, 2015 at 5:50 AM, Jeff Moyer <jmoyer@redhat.com> wrote: > Dan Williams <dan.j.williams@intel.com> writes: > >> If an application wants exclusive access to all of the persistent memory >> provided by an NVDIMM namespace it can use this raw-block-dax facility >> to forgo establishing a filesystem. This capability is targeted >> primarily to hypervisors wanting to provision persistent memory for >> guests. > > OK, I'm going to expose my ignorance here. :) Why does the block device > need a page_mkwrite handler? >
You're right, it buys us nothing, and deleting it saves having to comment on why this page_mkwrite instance is not calling sb_start_pagefault.
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