From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- fs/udf/partition.c | 342 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 342 insertions(+) create mode 100644 fs/udf/partition.c (limited to 'fs/udf/partition.c') diff --git a/fs/udf/partition.c b/fs/udf/partition.c new file mode 100644 index 000000000..5bcfe78d5 --- /dev/null +++ b/fs/udf/partition.c @@ -0,0 +1,342 @@ +/* + * partition.c + * + * PURPOSE + * Partition handling routines for the OSTA-UDF(tm) filesystem. + * + * COPYRIGHT + * This file is distributed under the terms of the GNU General Public + * License (GPL). Copies of the GPL can be obtained from: + * ftp://prep.ai.mit.edu/pub/gnu/GPL + * Each contributing author retains all rights to their own work. + * + * (C) 1998-2001 Ben Fennema + * + * HISTORY + * + * 12/06/98 blf Created file. + * + */ + +#include "udfdecl.h" +#include "udf_sb.h" +#include "udf_i.h" + +#include +#include +#include + +uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) +{ + struct udf_sb_info *sbi = UDF_SB(sb); + struct udf_part_map *map; + if (partition >= sbi->s_partitions) { + udf_debug("block=%u, partition=%u, offset=%u: invalid partition\n", + block, partition, offset); + return 0xFFFFFFFF; + } + map = &sbi->s_partmaps[partition]; + if (map->s_partition_func) + return map->s_partition_func(sb, block, partition, offset); + else + return map->s_partition_root + block + offset; +} + +uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) +{ + struct buffer_head *bh = NULL; + uint32_t newblock; + uint32_t index; + uint32_t loc; + struct udf_sb_info *sbi = UDF_SB(sb); + struct udf_part_map *map; + struct udf_virtual_data *vdata; + struct udf_inode_info *iinfo = UDF_I(sbi->s_vat_inode); + int err; + + map = &sbi->s_partmaps[partition]; + vdata = &map->s_type_specific.s_virtual; + + if (block > vdata->s_num_entries) { + udf_debug("Trying to access block beyond end of VAT (%u max %u)\n", + block, vdata->s_num_entries); + return 0xFFFFFFFF; + } + + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) { + loc = le32_to_cpu(((__le32 *)(iinfo->i_data + + vdata->s_start_offset))[block]); + goto translate; + } + index = (sb->s_blocksize - vdata->s_start_offset) / sizeof(uint32_t); + if (block >= index) { + block -= index; + newblock = 1 + (block / (sb->s_blocksize / sizeof(uint32_t))); + index = block % (sb->s_blocksize / sizeof(uint32_t)); + } else { + newblock = 0; + index = vdata->s_start_offset / sizeof(uint32_t) + block; + } + + bh = udf_bread(sbi->s_vat_inode, newblock, 0, &err); + if (!bh) { + udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%u,%u)\n", + sb, block, partition); + return 0xFFFFFFFF; + } + + loc = le32_to_cpu(((__le32 *)bh->b_data)[index]); + + brelse(bh); + +translate: + if (iinfo->i_location.partitionReferenceNum == partition) { + udf_debug("recursive call to udf_get_pblock!\n"); + return 0xFFFFFFFF; + } + + return udf_get_pblock(sb, loc, + iinfo->i_location.partitionReferenceNum, + offset); +} + +inline uint32_t udf_get_pblock_virt20(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) +{ + return udf_get_pblock_virt15(sb, block, partition, offset); +} + +uint32_t udf_get_pblock_spar15(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) +{ + int i; + struct sparingTable *st = NULL; + struct udf_sb_info *sbi = UDF_SB(sb); + struct udf_part_map *map; + uint32_t packet; + struct udf_sparing_data *sdata; + + map = &sbi->s_partmaps[partition]; + sdata = &map->s_type_specific.s_sparing; + packet = (block + offset) & ~(sdata->s_packet_len - 1); + + for (i = 0; i < 4; i++) { + if (sdata->s_spar_map[i] != NULL) { + st = (struct sparingTable *) + sdata->s_spar_map[i]->b_data; + break; + } + } + + if (st) { + for (i = 0; i < le16_to_cpu(st->reallocationTableLen); i++) { + struct sparingEntry *entry = &st->mapEntry[i]; + u32 origLoc = le32_to_cpu(entry->origLocation); + if (origLoc >= 0xFFFFFFF0) + break; + else if (origLoc == packet) + return le32_to_cpu(entry->mappedLocation) + + ((block + offset) & + (sdata->s_packet_len - 1)); + else if (origLoc > packet) + break; + } + } + + return map->s_partition_root + block + offset; +} + +int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block) +{ + struct udf_sparing_data *sdata; + struct sparingTable *st = NULL; + struct sparingEntry mapEntry; + uint32_t packet; + int i, j, k, l; + struct udf_sb_info *sbi = UDF_SB(sb); + u16 reallocationTableLen; + struct buffer_head *bh; + int ret = 0; + + mutex_lock(&sbi->s_alloc_mutex); + for (i = 0; i < sbi->s_partitions; i++) { + struct udf_part_map *map = &sbi->s_partmaps[i]; + if (old_block > map->s_partition_root && + old_block < map->s_partition_root + map->s_partition_len) { + sdata = &map->s_type_specific.s_sparing; + packet = (old_block - map->s_partition_root) & + ~(sdata->s_packet_len - 1); + + for (j = 0; j < 4; j++) + if (sdata->s_spar_map[j] != NULL) { + st = (struct sparingTable *) + sdata->s_spar_map[j]->b_data; + break; + } + + if (!st) { + ret = 1; + goto out; + } + + reallocationTableLen = + le16_to_cpu(st->reallocationTableLen); + for (k = 0; k < reallocationTableLen; k++) { + struct sparingEntry *entry = &st->mapEntry[k]; + u32 origLoc = le32_to_cpu(entry->origLocation); + + if (origLoc == 0xFFFFFFFF) { + for (; j < 4; j++) { + int len; + bh = sdata->s_spar_map[j]; + if (!bh) + continue; + + st = (struct sparingTable *) + bh->b_data; + entry->origLocation = + cpu_to_le32(packet); + len = + sizeof(struct sparingTable) + + reallocationTableLen * + sizeof(struct sparingEntry); + udf_update_tag((char *)st, len); + mark_buffer_dirty(bh); + } + *new_block = le32_to_cpu( + entry->mappedLocation) + + ((old_block - + map->s_partition_root) & + (sdata->s_packet_len - 1)); + ret = 0; + goto out; + } else if (origLoc == packet) { + *new_block = le32_to_cpu( + entry->mappedLocation) + + ((old_block - + map->s_partition_root) & + (sdata->s_packet_len - 1)); + ret = 0; + goto out; + } else if (origLoc > packet) + break; + } + + for (l = k; l < reallocationTableLen; l++) { + struct sparingEntry *entry = &st->mapEntry[l]; + u32 origLoc = le32_to_cpu(entry->origLocation); + + if (origLoc != 0xFFFFFFFF) + continue; + + for (; j < 4; j++) { + bh = sdata->s_spar_map[j]; + if (!bh) + continue; + + st = (struct sparingTable *)bh->b_data; + mapEntry = st->mapEntry[l]; + mapEntry.origLocation = + cpu_to_le32(packet); + memmove(&st->mapEntry[k + 1], + &st->mapEntry[k], + (l - k) * + sizeof(struct sparingEntry)); + st->mapEntry[k] = mapEntry; + udf_update_tag((char *)st, + sizeof(struct sparingTable) + + reallocationTableLen * + sizeof(struct sparingEntry)); + mark_buffer_dirty(bh); + } + *new_block = + le32_to_cpu( + st->mapEntry[k].mappedLocation) + + ((old_block - map->s_partition_root) & + (sdata->s_packet_len - 1)); + ret = 0; + goto out; + } + + ret = 1; + goto out; + } /* if old_block */ + } + + if (i == sbi->s_partitions) { + /* outside of partitions */ + /* for now, fail =) */ + ret = 1; + } + +out: + mutex_unlock(&sbi->s_alloc_mutex); + return ret; +} + +static uint32_t udf_try_read_meta(struct inode *inode, uint32_t block, + uint16_t partition, uint32_t offset) +{ + struct super_block *sb = inode->i_sb; + struct udf_part_map *map; + struct kernel_lb_addr eloc; + uint32_t elen; + sector_t ext_offset; + struct extent_position epos = {}; + uint32_t phyblock; + + if (inode_bmap(inode, block, &epos, &eloc, &elen, &ext_offset) != + (EXT_RECORDED_ALLOCATED >> 30)) + phyblock = 0xFFFFFFFF; + else { + map = &UDF_SB(sb)->s_partmaps[partition]; + /* map to sparable/physical partition desc */ + phyblock = udf_get_pblock(sb, eloc.logicalBlockNum, + map->s_type_specific.s_metadata.s_phys_partition_ref, + ext_offset + offset); + } + + brelse(epos.bh); + return phyblock; +} + +uint32_t udf_get_pblock_meta25(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) +{ + struct udf_sb_info *sbi = UDF_SB(sb); + struct udf_part_map *map; + struct udf_meta_data *mdata; + uint32_t retblk; + struct inode *inode; + + udf_debug("READING from METADATA\n"); + + map = &sbi->s_partmaps[partition]; + mdata = &map->s_type_specific.s_metadata; + inode = mdata->s_metadata_fe ? : mdata->s_mirror_fe; + + if (!inode) + return 0xFFFFFFFF; + + retblk = udf_try_read_meta(inode, block, partition, offset); + if (retblk == 0xFFFFFFFF && mdata->s_metadata_fe) { + udf_warn(sb, "error reading from METADATA, trying to read from MIRROR\n"); + if (!(mdata->s_flags & MF_MIRROR_FE_LOADED)) { + mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb, + mdata->s_mirror_file_loc, + mdata->s_phys_partition_ref); + if (IS_ERR(mdata->s_mirror_fe)) + mdata->s_mirror_fe = NULL; + mdata->s_flags |= MF_MIRROR_FE_LOADED; + } + + inode = mdata->s_mirror_fe; + if (!inode) + return 0xFFFFFFFF; + retblk = udf_try_read_meta(inode, block, partition, offset); + } + + return retblk; +} -- cgit v1.2.3