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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /fs/jfs/jfs_filsys.h
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to 'fs/jfs/jfs_filsys.h')
-rw-r--r--fs/jfs/jfs_filsys.h273
1 files changed, 273 insertions, 0 deletions
diff --git a/fs/jfs/jfs_filsys.h b/fs/jfs/jfs_filsys.h
new file mode 100644
index 000000000..b5d702df7
--- /dev/null
+++ b/fs/jfs/jfs_filsys.h
@@ -0,0 +1,273 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) International Business Machines Corp., 2000-2003
+ */
+#ifndef _H_JFS_FILSYS
+#define _H_JFS_FILSYS
+
+/*
+ * jfs_filsys.h
+ *
+ * file system (implementation-dependent) constants
+ *
+ * refer to <limits.h> for system wide implementation-dependent constants
+ */
+
+/*
+ * file system option (superblock flag)
+ */
+
+/* directory option */
+#define JFS_UNICODE 0x00000001 /* unicode name */
+
+/* mount time flags for error handling */
+#define JFS_ERR_REMOUNT_RO 0x00000002 /* remount read-only */
+#define JFS_ERR_CONTINUE 0x00000004 /* continue */
+#define JFS_ERR_PANIC 0x00000008 /* panic */
+
+/* Quota support */
+#define JFS_USRQUOTA 0x00000010
+#define JFS_GRPQUOTA 0x00000020
+
+/* mount time flag to disable journaling to disk */
+#define JFS_NOINTEGRITY 0x00000040
+
+/* mount time flag to enable TRIM to ssd disks */
+#define JFS_DISCARD 0x00000080
+
+/* commit option */
+#define JFS_COMMIT 0x00000f00 /* commit option mask */
+#define JFS_GROUPCOMMIT 0x00000100 /* group (of 1) commit */
+#define JFS_LAZYCOMMIT 0x00000200 /* lazy commit */
+#define JFS_TMPFS 0x00000400 /* temporary file system -
+ * do not log/commit:
+ * Never implemented
+ */
+
+/* log logical volume option */
+#define JFS_INLINELOG 0x00000800 /* inline log within file system */
+#define JFS_INLINEMOVE 0x00001000 /* inline log being moved */
+
+/* Secondary aggregate inode table */
+#define JFS_BAD_SAIT 0x00010000 /* current secondary ait is bad */
+
+/* sparse regular file support */
+#define JFS_SPARSE 0x00020000 /* sparse regular file */
+
+/* DASD Limits F226941 */
+#define JFS_DASD_ENABLED 0x00040000 /* DASD limits enabled */
+#define JFS_DASD_PRIME 0x00080000 /* Prime DASD usage on boot */
+
+/* big endian flag */
+#define JFS_SWAP_BYTES 0x00100000 /* running on big endian computer */
+
+/* Directory index */
+#define JFS_DIR_INDEX 0x00200000 /* Persistent index for */
+
+/* platform options */
+#define JFS_LINUX 0x10000000 /* Linux support */
+#define JFS_DFS 0x20000000 /* DCE DFS LFS support */
+/* Never implemented */
+
+#define JFS_OS2 0x40000000 /* OS/2 support */
+/* case-insensitive name/directory support */
+
+#define JFS_AIX 0x80000000 /* AIX support */
+
+/*
+ * buffer cache configuration
+ */
+/* page size */
+#ifdef PSIZE
+#undef PSIZE
+#endif
+#define PSIZE 4096 /* page size (in byte) */
+#define L2PSIZE 12 /* log2(PSIZE) */
+#define POFFSET 4095 /* offset within page */
+
+/* buffer page size */
+#define BPSIZE PSIZE
+
+/*
+ * fs fundamental size
+ *
+ * PSIZE >= file system block size >= PBSIZE >= DISIZE
+ */
+#define PBSIZE 512 /* physical block size (in byte) */
+#define L2PBSIZE 9 /* log2(PBSIZE) */
+
+#define DISIZE 512 /* on-disk inode size (in byte) */
+#define L2DISIZE 9 /* log2(DISIZE) */
+
+#define IDATASIZE 256 /* inode inline data size */
+#define IXATTRSIZE 128 /* inode inline extended attribute size */
+
+#define XTPAGE_SIZE 4096
+#define log2_PAGESIZE 12
+
+#define IAG_SIZE 4096
+#define IAG_EXTENT_SIZE 4096
+#define INOSPERIAG 4096 /* number of disk inodes per iag */
+#define L2INOSPERIAG 12 /* l2 number of disk inodes per iag */
+#define INOSPEREXT 32 /* number of disk inode per extent */
+#define L2INOSPEREXT 5 /* l2 number of disk inode per extent */
+#define IXSIZE (DISIZE * INOSPEREXT) /* inode extent size */
+#define INOSPERPAGE 8 /* number of disk inodes per 4K page */
+#define L2INOSPERPAGE 3 /* log2(INOSPERPAGE) */
+
+#define IAGFREELIST_LWM 64
+
+#define INODE_EXTENT_SIZE IXSIZE /* inode extent size */
+#define NUM_INODE_PER_EXTENT INOSPEREXT
+#define NUM_INODE_PER_IAG INOSPERIAG
+
+#define MINBLOCKSIZE 512
+#define MAXBLOCKSIZE 4096
+#define MAXFILESIZE ((s64)1 << 52)
+
+#define JFS_LINK_MAX 0xffffffff
+
+/* Minimum number of bytes supported for a JFS partition */
+#define MINJFS (0x1000000)
+#define MINJFSTEXT "16"
+
+/*
+ * file system block size -> physical block size
+ */
+#define LBOFFSET(x) ((x) & (PBSIZE - 1))
+#define LBNUMBER(x) ((x) >> L2PBSIZE)
+#define LBLK2PBLK(sb,b) ((b) << (sb->s_blocksize_bits - L2PBSIZE))
+#define PBLK2LBLK(sb,b) ((b) >> (sb->s_blocksize_bits - L2PBSIZE))
+/* size in byte -> last page number */
+#define SIZE2PN(size) ( ((s64)((size) - 1)) >> (L2PSIZE) )
+/* size in byte -> last file system block number */
+#define SIZE2BN(size, l2bsize) ( ((s64)((size) - 1)) >> (l2bsize) )
+
+/*
+ * fixed physical block address (physical block size = 512 byte)
+ *
+ * NOTE: since we can't guarantee a physical block size of 512 bytes the use of
+ * these macros should be removed and the byte offset macros used instead.
+ */
+#define SUPER1_B 64 /* primary superblock */
+#define AIMAP_B (SUPER1_B + 8) /* 1st extent of aggregate inode map */
+#define AITBL_B (AIMAP_B + 16) /*
+ * 1st extent of aggregate inode table
+ */
+#define SUPER2_B (AITBL_B + 32) /* 2ndary superblock pbn */
+#define BMAP_B (SUPER2_B + 8) /* block allocation map */
+
+/*
+ * SIZE_OF_SUPER defines the total amount of space reserved on disk for the
+ * superblock. This is not the same as the superblock structure, since all of
+ * this space is not currently being used.
+ */
+#define SIZE_OF_SUPER PSIZE
+
+/*
+ * SIZE_OF_AG_TABLE defines the amount of space reserved to hold the AG table
+ */
+#define SIZE_OF_AG_TABLE PSIZE
+
+/*
+ * SIZE_OF_MAP_PAGE defines the amount of disk space reserved for each page of
+ * the inode allocation map (to hold iag)
+ */
+#define SIZE_OF_MAP_PAGE PSIZE
+
+/*
+ * fixed byte offset address
+ */
+#define SUPER1_OFF 0x8000 /* primary superblock */
+#define AIMAP_OFF (SUPER1_OFF + SIZE_OF_SUPER)
+ /*
+ * Control page of aggregate inode map
+ * followed by 1st extent of map
+ */
+#define AITBL_OFF (AIMAP_OFF + (SIZE_OF_MAP_PAGE << 1))
+ /*
+ * 1st extent of aggregate inode table
+ */
+#define SUPER2_OFF (AITBL_OFF + INODE_EXTENT_SIZE)
+ /*
+ * secondary superblock
+ */
+#define BMAP_OFF (SUPER2_OFF + SIZE_OF_SUPER)
+ /*
+ * block allocation map
+ */
+
+/*
+ * The following macro is used to indicate the number of reserved disk blocks at
+ * the front of an aggregate, in terms of physical blocks. This value is
+ * currently defined to be 32K. This turns out to be the same as the primary
+ * superblock's address, since it directly follows the reserved blocks.
+ */
+#define AGGR_RSVD_BLOCKS SUPER1_B
+
+/*
+ * The following macro is used to indicate the number of reserved bytes at the
+ * front of an aggregate. This value is currently defined to be 32K. This
+ * turns out to be the same as the primary superblock's byte offset, since it
+ * directly follows the reserved blocks.
+ */
+#define AGGR_RSVD_BYTES SUPER1_OFF
+
+/*
+ * The following macro defines the byte offset for the first inode extent in
+ * the aggregate inode table. This allows us to find the self inode to find the
+ * rest of the table. Currently this value is 44K.
+ */
+#define AGGR_INODE_TABLE_START AITBL_OFF
+
+/*
+ * fixed reserved inode number
+ */
+/* aggregate inode */
+#define AGGR_RESERVED_I 0 /* aggregate inode (reserved) */
+#define AGGREGATE_I 1 /* aggregate inode map inode */
+#define BMAP_I 2 /* aggregate block allocation map inode */
+#define LOG_I 3 /* aggregate inline log inode */
+#define BADBLOCK_I 4 /* aggregate bad block inode */
+#define FILESYSTEM_I 16 /* 1st/only fileset inode in ait:
+ * fileset inode map inode
+ */
+
+/* per fileset inode */
+#define FILESET_RSVD_I 0 /* fileset inode (reserved) */
+#define FILESET_EXT_I 1 /* fileset inode extension */
+#define ROOT_I 2 /* fileset root inode */
+#define ACL_I 3 /* fileset ACL inode */
+
+#define FILESET_OBJECT_I 4 /* the first fileset inode available for a file
+ * or directory or link...
+ */
+#define FIRST_FILESET_INO 16 /* the first aggregate inode which describes
+ * an inode. (To fsck this is also the first
+ * inode in part 2 of the agg inode table.)
+ */
+
+/*
+ * directory configuration
+ */
+#define JFS_NAME_MAX 255
+#define JFS_PATH_MAX BPSIZE
+
+
+/*
+ * file system state (superblock state)
+ */
+#define FM_CLEAN 0x00000000 /* file system is unmounted and clean */
+#define FM_MOUNT 0x00000001 /* file system is mounted cleanly */
+#define FM_DIRTY 0x00000002 /* file system was not unmounted and clean
+ * when mounted or
+ * commit failure occurred while being mounted:
+ * fsck() must be run to repair
+ */
+#define FM_LOGREDO 0x00000004 /* log based recovery (logredo()) failed:
+ * fsck() must be run to repair
+ */
+#define FM_EXTENDFS 0x00000008 /* file system extendfs() in progress */
+#define FM_STATE_MAX 0x0000000f /* max value of s_state */
+
+#endif /* _H_JFS_FILSYS */