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See http://www.infradead.org/rpr.html X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: dm-devel@redhat.com Cc: linux-arch@vger.kernel.org, linux-block@vger.kernel.org, Thomas Bogendoerfer , Mike Snitzer , Geoff Levand , linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, linux-mips@vger.kernel.org, Dongsheng Yang , linux-kernel@vger.kernel.org, "James E.J. Bottomley" , dm-devel@redhat.com, Andrew Morton , Ira Weiny , Ilya Dryomov Subject: [dm-devel] switch the block layer to use kmap_local_page v3 X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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. Changes since v2: - rely on the flush_dcache_helpers in memcpy_to_page and memzero_page that now hit mainline Changes since v1: - add more/better comments - add a new kunmap_local_dirty helper to feal with flush(_kernel)_dcache_page Diffstat: arch/mips/include/asm/mach-rc32434/rb.h | 2 - block/bio-integrity.c | 14 +++----- block/bio.c | 37 ++++++---------------- block/blk-map.c | 2 - block/bounce.c | 39 +++++------------------- block/t10-pi.c | 16 +++------ drivers/block/ps3disk.c | 19 +---------- drivers/block/rbd.c | 15 +-------- drivers/md/dm-writecache.c | 5 +-- include/linux/bio.h | 42 ------------------------- include/linux/bvec.h | 52 ++++++++++++++++++++++++++++++-- include/linux/highmem-internal.h | 7 ++++ include/linux/highmem.h | 10 ++++-- 13 files changed, 102 insertions(+), 158 deletions(-) -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel