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Date:   Wed, 7 Sep 2022 15:30:16 -0700
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Davidlohr Bueso <dave@stgolabs.net>
Cc:     dan.j.williams@intel.com, x86@kernel.org, nvdimm@lists.linux.dev,
        linux-cxl@vger.kernel.org, peterz@infradead.org, bp@alien8.de,
        dave.jiang@intel.com, Jonathan.Cameron@huawei.com,
        vishal.l.verma@intel.com, ira.weiny@intel.com,
        a.manzanares@samsung.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -next] memregion: Add arch_flush_memregion() interface
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I really dislike the term "flush".  Sometimes it means writeback,
sometimes it means invalidate.  Perhaps at other times it means
both.

Can we please be very clear in comments and changelogs about exactly
what this "flush" does.   With bonus points for being more specific in the 
function naming?