Re: [PATCH v11 00/21] Add support for NV-DIMMs to ext4

[Jeff Moyer]

Valdis.Kletnieks@xxxxxx writes:

> As long as we're at it, if we go that route we probably *also* want a
> way for a program to specify it at open() time (for instance, for the
> use of backup programs) - that should minimize the infamous "everything
> runs like a pig after the backup finishes running because  the *useful*
> pages are all cache-cold".

This sounds an awful lot like posix_fadvise' POSIX_FADV_NOREUSE flag.
Whether the implementation lives up to your expectations is another
matter, but at least the interface is already there.

Cheers,
Jeff
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