The alignment constraint for namespace creation in a region was
increased, from 2M to 16M, for non-PowerPC architectures in v5.7 with
commit 2522afb86a8c ("libnvdimm/region: Introduce an 'align'
attribute"). The thought behind the change was that region alignment
should be uniform across all
With CXL security features, global CPU cache flushing nvdimm requirements
are no longer specific to that subsystem, even beyond the scope of
security_ops. CXL will need such semantics for features not necessarily
limited to persistent memory.
The functionality this is enabling is to be able to
[ add Christoph ]
Davidlohr Bueso wrote:
> With CXL security features, global CPU cache flushing nvdimm requirements
> are no longer specific to that subsystem, even beyond the scope of
> security_ops. CXL will need such semantics for features not necessarily
> limited to persistent memory.
>
>
On Mon, Aug 29, 2022 at 06:02:11PM +0800, Shiyang Ruan wrote:
>
>
> 在 2022/8/27 5:35, Dan Williams 写道:
> > Shiyang Ruan wrote:
> > > This patch is inspired by Dan's "mm, dax, pmem: Introduce
> > > dev_pagemap_failure()"[1]. With the help of dax_holder and
> > > ->notify_failure() mechanism, the
在 2022/8/27 5:35, Dan Williams 写道:
Shiyang Ruan wrote:
This patch is inspired by Dan's "mm, dax, pmem: Introduce
dev_pagemap_failure()"[1]. With the help of dax_holder and
->notify_failure() mechanism, the pmem driver is able to ask filesystem
(or mapped device) on it to unmap all files in
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