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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_incore.h
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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_incore.h')
-rw-r--r--fs/jfs/jfs_incore.h226
1 files changed, 226 insertions, 0 deletions
diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
new file mode 100644
index 000000000..721def69e
--- /dev/null
+++ b/fs/jfs/jfs_incore.h
@@ -0,0 +1,226 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) International Business Machines Corp., 2000-2004
+ * Portions Copyright (C) Christoph Hellwig, 2001-2002
+ */
+#ifndef _H_JFS_INCORE
+#define _H_JFS_INCORE
+
+#include <linux/mutex.h>
+#include <linux/rwsem.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/uuid.h>
+
+#include "jfs_types.h"
+#include "jfs_xtree.h"
+#include "jfs_dtree.h"
+
+/*
+ * JFS magic number
+ */
+#define JFS_SUPER_MAGIC 0x3153464a /* "JFS1" */
+
+/*
+ * JFS-private inode information
+ */
+struct jfs_inode_info {
+ int fileset; /* fileset number (always 16)*/
+ uint mode2; /* jfs-specific mode */
+ kuid_t saved_uid; /* saved for uid mount option */
+ kgid_t saved_gid; /* saved for gid mount option */
+ pxd_t ixpxd; /* inode extent descriptor */
+ dxd_t acl; /* dxd describing acl */
+ dxd_t ea; /* dxd describing ea */
+ time64_t otime; /* time created */
+ uint next_index; /* next available directory entry index */
+ int acltype; /* Type of ACL */
+ short btorder; /* access order */
+ short btindex; /* btpage entry index*/
+ struct inode *ipimap; /* inode map */
+ unsigned long cflag; /* commit flags */
+ u64 agstart; /* agstart of the containing IAG */
+ u16 bxflag; /* xflag of pseudo buffer? */
+ unchar pad;
+ signed char active_ag; /* ag currently allocating from */
+ lid_t blid; /* lid of pseudo buffer? */
+ lid_t atlhead; /* anonymous tlock list head */
+ lid_t atltail; /* anonymous tlock list tail */
+ spinlock_t ag_lock; /* protects active_ag */
+ struct list_head anon_inode_list; /* inodes having anonymous txns */
+ /*
+ * rdwrlock serializes xtree between reads & writes and synchronizes
+ * changes to special inodes. It's use would be redundant on
+ * directories since the i_mutex taken in the VFS is sufficient.
+ */
+ struct rw_semaphore rdwrlock;
+ /*
+ * commit_mutex serializes transaction processing on an inode.
+ * It must be taken after beginning a transaction (txBegin), since
+ * dirty inodes may be committed while a new transaction on the
+ * inode is blocked in txBegin or TxBeginAnon
+ */
+ struct mutex commit_mutex;
+ /* xattr_sem allows us to access the xattrs without taking i_mutex */
+ struct rw_semaphore xattr_sem;
+ lid_t xtlid; /* lid of xtree lock on directory */
+ union {
+ struct {
+ xtpage_t _xtroot; /* 288: xtree root */
+ struct inomap *_imap; /* 4: inode map header */
+ } file;
+ struct {
+ struct dir_table_slot _table[12]; /* 96: dir index */
+ dtroot_t _dtroot; /* 288: dtree root */
+ } dir;
+ struct {
+ unchar _unused[16]; /* 16: */
+ dxd_t _dxd; /* 16: */
+ /* _inline may overflow into _inline_ea when needed */
+ /* _inline_ea may overlay the last part of
+ * file._xtroot if maxentry = XTROOTINITSLOT
+ */
+ union {
+ struct {
+ /* 128: inline symlink */
+ unchar _inline[128];
+ /* 128: inline extended attr */
+ unchar _inline_ea[128];
+ };
+ unchar _inline_all[256];
+ };
+ } link;
+ } u;
+#ifdef CONFIG_QUOTA
+ struct dquot *i_dquot[MAXQUOTAS];
+#endif
+ u32 dev; /* will die when we get wide dev_t */
+ struct inode vfs_inode;
+};
+#define i_xtroot u.file._xtroot
+#define i_imap u.file._imap
+#define i_dirtable u.dir._table
+#define i_dtroot u.dir._dtroot
+#define i_inline u.link._inline
+#define i_inline_ea u.link._inline_ea
+#define i_inline_all u.link._inline_all
+
+#define IREAD_LOCK(ip, subclass) \
+ down_read_nested(&JFS_IP(ip)->rdwrlock, subclass)
+#define IREAD_UNLOCK(ip) up_read(&JFS_IP(ip)->rdwrlock)
+#define IWRITE_LOCK(ip, subclass) \
+ down_write_nested(&JFS_IP(ip)->rdwrlock, subclass)
+#define IWRITE_UNLOCK(ip) up_write(&JFS_IP(ip)->rdwrlock)
+
+/*
+ * cflag
+ */
+enum cflags {
+ COMMIT_Nolink, /* inode committed with zero link count */
+ COMMIT_Inlineea, /* commit inode inline EA */
+ COMMIT_Freewmap, /* free WMAP at iClose() */
+ COMMIT_Dirty, /* Inode is really dirty */
+ COMMIT_Dirtable, /* commit changes to di_dirtable */
+ COMMIT_Stale, /* data extent is no longer valid */
+ COMMIT_Synclist, /* metadata pages on group commit synclist */
+};
+
+/*
+ * commit_mutex nesting subclasses:
+ */
+enum commit_mutex_class
+{
+ COMMIT_MUTEX_PARENT,
+ COMMIT_MUTEX_CHILD,
+ COMMIT_MUTEX_SECOND_PARENT, /* Renaming */
+ COMMIT_MUTEX_VICTIM /* Inode being unlinked due to rename */
+};
+
+/*
+ * rdwrlock subclasses:
+ * The dmap inode may be locked while a normal inode or the imap inode are
+ * locked.
+ */
+enum rdwrlock_class
+{
+ RDWRLOCK_NORMAL,
+ RDWRLOCK_IMAP,
+ RDWRLOCK_DMAP
+};
+
+#define set_cflag(flag, ip) set_bit(flag, &(JFS_IP(ip)->cflag))
+#define clear_cflag(flag, ip) clear_bit(flag, &(JFS_IP(ip)->cflag))
+#define test_cflag(flag, ip) test_bit(flag, &(JFS_IP(ip)->cflag))
+#define test_and_clear_cflag(flag, ip) \
+ test_and_clear_bit(flag, &(JFS_IP(ip)->cflag))
+/*
+ * JFS-private superblock information.
+ */
+struct jfs_sb_info {
+ struct super_block *sb; /* Point back to vfs super block */
+ unsigned long mntflag; /* aggregate attributes */
+ struct inode *ipbmap; /* block map inode */
+ struct inode *ipaimap; /* aggregate inode map inode */
+ struct inode *ipaimap2; /* secondary aimap inode */
+ struct inode *ipimap; /* aggregate inode map inode */
+ struct jfs_log *log; /* log */
+ struct list_head log_list; /* volumes associated with a journal */
+ short bsize; /* logical block size */
+ short l2bsize; /* log2 logical block size */
+ short nbperpage; /* blocks per page */
+ short l2nbperpage; /* log2 blocks per page */
+ short l2niperblk; /* log2 inodes per page */
+ dev_t logdev; /* external log device */
+ uint aggregate; /* volume identifier in log record */
+ pxd_t logpxd; /* pxd describing log */
+ pxd_t fsckpxd; /* pxd describing fsck wkspc */
+ pxd_t ait2; /* pxd describing AIT copy */
+ uuid_t uuid; /* 128-bit uuid for volume */
+ uuid_t loguuid; /* 128-bit uuid for log */
+ /*
+ * commit_state is used for synchronization of the jfs_commit
+ * threads. It is protected by LAZY_LOCK().
+ */
+ int commit_state; /* commit state */
+ /* Formerly in ipimap */
+ uint gengen; /* inode generation generator*/
+ uint inostamp; /* shows inode belongs to fileset*/
+
+ /* Formerly in ipbmap */
+ struct bmap *bmap; /* incore bmap descriptor */
+ struct nls_table *nls_tab; /* current codepage */
+ struct inode *direct_inode; /* metadata inode */
+ uint state; /* mount/recovery state */
+ unsigned long flag; /* mount time flags */
+ uint p_state; /* state prior to going no integrity */
+ kuid_t uid; /* uid to override on-disk uid */
+ kgid_t gid; /* gid to override on-disk gid */
+ uint umask; /* umask to override on-disk umask */
+ uint minblks_trim; /* minimum blocks, for online trim */
+};
+
+/* jfs_sb_info commit_state */
+#define IN_LAZYCOMMIT 1
+
+static inline struct jfs_inode_info *JFS_IP(struct inode *inode)
+{
+ return container_of(inode, struct jfs_inode_info, vfs_inode);
+}
+
+static inline int jfs_dirtable_inline(struct inode *inode)
+{
+ return (JFS_IP(inode)->next_index <= (MAX_INLINE_DIRTABLE_ENTRY + 1));
+}
+
+static inline struct jfs_sb_info *JFS_SBI(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+static inline int isReadOnly(struct inode *inode)
+{
+ if (JFS_SBI(inode->i_sb)->log)
+ return 0;
+ return 1;
+}
+#endif /* _H_JFS_INCORE */