From: "Matthew Wilcox (Oracle)" <wi...@infradead.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. Matthew Wilcox (Oracle) (7): net: Increase the size of skb_frag_t net: Reorder the contents of skb_frag_t net: Use skb accessors in network drivers net: Use skb accessors in network core 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/hsi/clients/ssi_protocol.c | 3 +- drivers/net/ethernet/3com/3c59x.c | 2 +- drivers/net/ethernet/agere/et131x.c | 4 +-- .../net/ethernet/apm/xgene/xgene_enet_main.c | 3 +- drivers/net/ethernet/calxeda/xgmac.c | 2 +- .../net/ethernet/cavium/liquidio/lio_main.c | 17 +++++----- .../ethernet/cavium/liquidio/lio_vf_main.c | 15 ++++----- drivers/net/ethernet/cortina/gemini.c | 5 ++- drivers/net/ethernet/freescale/fec_main.c | 4 +-- drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 +- drivers/net/ethernet/intel/fm10k/fm10k_main.c | 3 +- drivers/net/ethernet/intel/igb/igb_main.c | 3 +- drivers/net/ethernet/intel/igc/igc_main.c | 3 +- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 3 +- drivers/net/ethernet/marvell/mvneta.c | 4 +-- .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 ++-- .../net/ethernet/myricom/myri10ge/myri10ge.c | 2 +- drivers/net/ethernet/qualcomm/emac/emac-mac.c | 5 +-- drivers/net/usb/usbnet.c | 2 +- drivers/net/wireless/ath/wil6210/txrx.c | 6 ++-- drivers/net/wireless/ath/wil6210/txrx_edma.c | 2 +- drivers/net/xen-netback/netback.c | 4 +-- drivers/staging/octeon/ethernet-tx.c | 3 +- drivers/target/iscsi/cxgbit/cxgbit_target.c | 6 ++-- include/linux/bvec.h | 5 ++- include/linux/skbuff.h | 32 +++++++------------ net/core/skbuff.c | 24 ++++++++------ net/core/tso.c | 8 ++--- net/ipv4/tcp.c | 12 ++++--- net/kcm/kcmsock.c | 8 ++--- net/tls/tls_device.c | 14 ++++---- 31 files changed, 108 insertions(+), 105 deletions(-) -- 2.20.1
