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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /fs/jfs/jfs_incore.h | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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.h | 226 |
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 */ |