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Date: Thu, 25 Jul 2019 09:26:57 -0700 From: "Jonathan Lemon" <jonathan.lemon@...il.com> To: "Matthew Wilcox" <willy@...radead.org> Cc: davem@...emloft.net, hch@....de, netdev@...r.kernel.org Subject: Re: [PATCH v3 0/7] Convert skb_frag_t to bio_vec On 22 Jul 2019, at 20:08, Matthew Wilcox wrote: > From: "Matthew Wilcox (Oracle)" <willy@...radead.org> > > The skb_frag_t and bio_vec are fundamentally the same (page, offset, > length) tuple. This patch series unifies the two, leaving the > skb_frag_t typedef in place. This has the immediate advantage that > we already have iov_iter support for bvecs and don't need to add > support for iterating skbuffs. It enables a long-term plan to use > bvecs more broadly within the kernel and should make network-storage > drivers able to do less work converting between skbuffs and biovecs. > > It will consume more memory on 32-bit kernels. If that proves > problematic, we can look at ways of addressing it. > > v3: Rebase on latest Linus with net-next merged. > - Reorder the uncontroversial 'Use skb accessors' patches first so you > can apply just those two if you want to hold off on the full > conversion. > - Convert all the users of 'struct skb_frag_struct' to skb_frag_t. Thanks for doing this! One step closer to simplifying code. For the series: Acked-by: Jonathan Lemon <jonathan.lemon@...il.com> > > Matthew Wilcox (Oracle) (7): > net: Use skb accessors in network drivers > net: Use skb accessors in network core > net: Increase the size of skb_frag_t > net: Reorder the contents of skb_frag_t > net: Rename skb_frag page to bv_page > net: Rename skb_frag_t size to bv_len > net: Convert skb_frag_t to bio_vec > > drivers/crypto/chelsio/chtls/chtls_io.c | 6 ++-- > drivers/hsi/clients/ssi_protocol.c | 3 +- > drivers/infiniband/hw/hfi1/vnic_sdma.c | 2 +- > drivers/net/ethernet/3com/3c59x.c | 2 +- > drivers/net/ethernet/agere/et131x.c | 6 ++-- > drivers/net/ethernet/amd/xgbe/xgbe-desc.c | 2 +- > drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 +- > .../net/ethernet/apm/xgene/xgene_enet_main.c | 3 +- > drivers/net/ethernet/atheros/alx/main.c | 4 +-- > .../net/ethernet/atheros/atl1c/atl1c_main.c | 4 +-- > .../net/ethernet/atheros/atl1e/atl1e_main.c | 3 +- > drivers/net/ethernet/atheros/atlx/atl1.c | 3 +- > drivers/net/ethernet/broadcom/bgmac.c | 2 +- > drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- > drivers/net/ethernet/brocade/bna/bnad.c | 2 +- > drivers/net/ethernet/calxeda/xgmac.c | 2 +- > .../net/ethernet/cavium/liquidio/lio_main.c | 23 ++++++------- > .../ethernet/cavium/liquidio/lio_vf_main.c | 23 ++++++------- > .../ethernet/cavium/thunder/nicvf_queues.c | 4 +-- > drivers/net/ethernet/chelsio/cxgb3/sge.c | 2 +- > drivers/net/ethernet/cortina/gemini.c | 5 ++- > drivers/net/ethernet/emulex/benet/be_main.c | 2 +- > drivers/net/ethernet/freescale/enetc/enetc.c | 2 +- > drivers/net/ethernet/freescale/fec_main.c | 4 +-- > drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 +- > drivers/net/ethernet/hisilicon/hns/hns_enet.c | 4 +-- > .../net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++--- > drivers/net/ethernet/huawei/hinic/hinic_tx.c | 2 +- > drivers/net/ethernet/ibm/emac/core.c | 2 +- > drivers/net/ethernet/intel/e1000/e1000_main.c | 3 +- > drivers/net/ethernet/intel/e1000e/netdev.c | 3 +- > drivers/net/ethernet/intel/fm10k/fm10k_main.c | 5 +-- > drivers/net/ethernet/intel/i40e/i40e_txrx.c | 4 +-- > drivers/net/ethernet/intel/i40e/i40e_txrx.h | 2 +- > drivers/net/ethernet/intel/iavf/iavf_txrx.c | 4 +-- > drivers/net/ethernet/intel/iavf/iavf_txrx.h | 2 +- > drivers/net/ethernet/intel/ice/ice_txrx.c | 6 ++-- > drivers/net/ethernet/intel/igb/igb_main.c | 5 +-- > drivers/net/ethernet/intel/igbvf/netdev.c | 2 +- > drivers/net/ethernet/intel/igc/igc_main.c | 5 +-- > drivers/net/ethernet/intel/ixgb/ixgb_main.c | 4 +-- > drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 9 ++--- > .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +- > drivers/net/ethernet/jme.c | 5 ++- > drivers/net/ethernet/marvell/mvneta.c | 4 +-- > .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 ++-- > drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 +-- > drivers/net/ethernet/mellanox/mlx4/en_tx.c | 4 +-- > .../net/ethernet/mellanox/mlx5/core/en_tx.c | 2 +- > drivers/net/ethernet/microchip/lan743x_main.c | 5 ++- > .../net/ethernet/myricom/myri10ge/myri10ge.c | 10 +++--- > .../ethernet/netronome/nfp/nfp_net_common.c | 6 ++-- > .../ethernet/qlogic/netxen/netxen_nic_main.c | 4 +-- > .../net/ethernet/qlogic/qlcnic/qlcnic_io.c | 2 +- > drivers/net/ethernet/qualcomm/emac/emac-mac.c | 12 +++---- > .../net/ethernet/synopsys/dwc-xlgmac-desc.c | 2 +- > .../net/ethernet/synopsys/dwc-xlgmac-net.c | 2 +- > drivers/net/ethernet/tehuti/tehuti.c | 2 +- > drivers/net/usb/usbnet.c | 4 +-- > drivers/net/vmxnet3/vmxnet3_drv.c | 7 ++-- > drivers/net/wireless/ath/wil6210/debugfs.c | 3 +- > drivers/net/wireless/ath/wil6210/txrx.c | 9 +++-- > drivers/net/wireless/ath/wil6210/txrx_edma.c | 2 +- > drivers/net/xen-netback/netback.c | 4 +-- > drivers/s390/net/qeth_core_main.c | 2 +- > drivers/scsi/fcoe/fcoe_transport.c | 2 +- > drivers/staging/octeon/ethernet-tx.c | 5 ++- > .../staging/unisys/visornic/visornic_main.c | 4 +-- > drivers/target/iscsi/cxgbit/cxgbit_target.c | 13 +++---- > include/linux/bvec.h | 5 ++- > include/linux/skbuff.h | 34 ++++++------------- > net/core/skbuff.c | 26 ++++++++------ > net/core/tso.c | 8 ++--- > net/ipv4/tcp.c | 14 ++++---- > net/kcm/kcmsock.c | 8 ++--- > net/tls/tls_device.c | 14 ++++---- > 76 files changed, 202 insertions(+), 220 deletions(-) > > -- > 2.20.1
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