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Subject: Re: switch the block layer to use kmap_local_page v3
To:     Christoph Hellwig <hch@lst.de>,
        Thomas Gleixner <tglx@linutronix.de>
Cc:     Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Geoff Levand <geoff@infradead.org>,
        Ilya Dryomov <idryomov@gmail.com>,
        Dongsheng Yang <dongsheng.yang@easystack.cn>,
        Mike Snitzer <snitzer@redhat.com>,
        "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
        Ira Weiny <ira.weiny@intel.com>, dm-devel@redhat.com,
        linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-block@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        ceph-devel@vger.kernel.org, linux-arch@vger.kernel.org
References: <20210727055646.118787-1-hch@lst.de>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <eba0b98f-5b0e-32c4-3b09-fa1946192517@kernel.dk>
Date:   Tue, 27 Jul 2021 19:31:30 -0600
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On 7/26/21 11:56 PM, Christoph Hellwig wrote:
> Hi all,
> 
> this series switches the core block layer code and all users of the
> existing bvec kmap helpers to use kmap_local_page.  Drivers that
> currently use open coded kmap_atomic calls will converted in a follow
> on series.
> 
> To do so a new kunmap variant is added that calls
> flush_kernel_dcache_page.  I'm not entirely sure where to call
> flush_dcache_page vs flush_kernel_dcache_page, so I've tried to follow
> the documentation here, but additional feedback would be welcome.
> 
> Note that the ps3disk has a minir conflict with the
> flush_kernel_dcache_page removal in linux-next through the -mm tree.
> I had hoped that change would go into 5.14, but it seems like it is
> being held for 5.15.

Applied for 5.15, thanks.

-- 
Jens Axboe