linux-ext4 - Re: [PATCH RFC PKS/PMEM 05/58] kmap: Introduce k[un]map

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Date:   Tue, 10 Nov 2020 09:48:31 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Ira Weiny <ira.weiny@...el.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>, x86@...nel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>, linux-doc@...r.kernel.org,
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Subject: Re: [PATCH RFC PKS/PMEM 05/58] kmap: Introduce k[un]map_thread

On Mon, Nov 09 2020 at 20:59, Ira Weiny wrote:
> On Tue, Nov 10, 2020 at 02:13:56AM +0100, Thomas Gleixner wrote:
> Also, we can convert the new memcpy_*_page() calls to kmap_local() as well.
> [For now my patch just uses kmap_atomic().]
>
> I've not looked at all of the patches in your latest version.  Have you
> included converting any of the kmap() call sites?  I thought you were more
> focused on converting the kmap_atomic() to kmap_local()?

I did not touch any of those yet, but it's a logical consequence to
convert all kmap() instances which are _not_ creating a global mapping
over to it.

Thanks,

        tglx