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().
  ...

1 files changed, 500 insertions, 0 deletions

diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
new file mode 100644
index 000000000..805877ce5
--- /dev/null
+++ b/fs/jfs/jfs_logmgr.h
@@ -0,0 +1,500 @@
+/* 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_LOGMGR
+#define _H_JFS_LOGMGR
+
+#include <linux/uuid.h>
+
+#include "jfs_filsys.h"
+#include "jfs_lock.h"
+
+/*
+ *	log manager configuration parameters
+ */
+
+/* log page size */
+#define	LOGPSIZE	4096
+#define	L2LOGPSIZE	12
+
+#define LOGPAGES	16	/* Log pages per mounted file system */
+
+/*
+ *	log logical volume
+ *
+ * a log is used to make the commit operation on journalled
+ * files within the same logical volume group atomic.
+ * a log is implemented with a logical volume.
+ * there is one log per logical volume group.
+ *
+ * block 0 of the log logical volume is not used (ipl etc).
+ * block 1 contains a log "superblock" and is used by logFormat(),
+ * lmLogInit(), lmLogShutdown(), and logRedo() to record status
+ * of the log but is not otherwise used during normal processing.
+ * blocks 2 - (N-1) are used to contain log records.
+ *
+ * when a volume group is varied-on-line, logRedo() must have
+ * been executed before the file systems (logical volumes) in
+ * the volume group can be mounted.
+ */
+/*
+ *	log superblock (block 1 of logical volume)
+ */
+#define	LOGSUPER_B	1
+#define	LOGSTART_B	2
+
+#define	LOGMAGIC	0x87654321
+#define	LOGVERSION	1
+
+#define MAX_ACTIVE	128	/* Max active file systems sharing log */
+
+struct logsuper {
+	__le32 magic;		/* 4: log lv identifier */
+	__le32 version;		/* 4: version number */
+	__le32 serial;		/* 4: log open/mount counter */
+	__le32 size;		/* 4: size in number of LOGPSIZE blocks */
+	__le32 bsize;		/* 4: logical block size in byte */
+	__le32 l2bsize;		/* 4: log2 of bsize */
+
+	__le32 flag;		/* 4: option */
+	__le32 state;		/* 4: state - see below */
+
+	__le32 end;		/* 4: addr of last log record set by logredo */
+	uuid_t uuid;		/* 16: 128-bit journal uuid */
+	char label[16];		/* 16: journal label */
+	struct {
+		uuid_t uuid;
+	} active[MAX_ACTIVE];	/* 2048: active file systems list */
+};
+
+/* log flag: commit option (see jfs_filsys.h) */
+
+/* log state */
+#define	LOGMOUNT	0	/* log mounted by lmLogInit() */
+#define LOGREDONE	1	/* log shutdown by lmLogShutdown().
+				 * log redo completed by logredo().
+				 */
+#define LOGWRAP		2	/* log wrapped */
+#define LOGREADERR	3	/* log read error detected in logredo() */
+
+
+/*
+ *	log logical page
+ *
+ * (this comment should be rewritten !)
+ * the header and trailer structures (h,t) will normally have
+ * the same page and eor value.
+ * An exception to this occurs when a complete page write is not
+ * accomplished on a power failure. Since the hardware may "split write"
+ * sectors in the page, any out of order sequence may occur during powerfail
+ * and needs to be recognized during log replay.  The xor value is
+ * an "exclusive or" of all log words in the page up to eor.  This
+ * 32 bit eor is stored with the top 16 bits in the header and the
+ * bottom 16 bits in the trailer.  logredo can easily recognize pages
+ * that were not completed by reconstructing this eor and checking
+ * the log page.
+ *
+ * Previous versions of the operating system did not allow split
+ * writes and detected partially written records in logredo by
+ * ordering the updates to the header, trailer, and the move of data
+ * into the logdata area.  The order: (1) data is moved (2) header
+ * is updated (3) trailer is updated.  In logredo, when the header
+ * differed from the trailer, the header and trailer were reconciled
+ * as follows: if h.page != t.page they were set to the smaller of
+ * the two and h.eor and t.eor set to 8 (i.e. empty page). if (only)
+ * h.eor != t.eor they were set to the smaller of their two values.
+ */
+struct logpage {
+	struct {		/* header */
+		__le32 page;	/* 4: log sequence page number */
+		__le16 rsrvd;	/* 2: */
+		__le16 eor;	/* 2: end-of-log offset of lasrt record write */
+	} h;
+
+	__le32 data[LOGPSIZE / 4 - 4];	/* log record area */
+
+	struct {		/* trailer */
+		__le32 page;	/* 4: normally the same as h.page */
+		__le16 rsrvd;	/* 2: */
+		__le16 eor;	/* 2: normally the same as h.eor */
+	} t;
+};
+
+#define LOGPHDRSIZE	8	/* log page header size */
+#define LOGPTLRSIZE	8	/* log page trailer size */
+
+
+/*
+ *	log record
+ *
+ * (this comment should be rewritten !)
+ * jfs uses only "after" log records (only a single writer is allowed
+ * in a page, pages are written to temporary paging space if
+ * they must be written to disk before commit, and i/o is
+ * scheduled for modified pages to their home location after
+ * the log records containing the after values and the commit
+ * record is written to the log on disk, undo discards the copy
+ * in main-memory.)
+ *
+ * a log record consists of a data area of variable length followed by
+ * a descriptor of fixed size LOGRDSIZE bytes.
+ * the data area is rounded up to an integral number of 4-bytes and
+ * must be no longer than LOGPSIZE.
+ * the descriptor is of size of multiple of 4-bytes and aligned on a
+ * 4-byte boundary.
+ * records are packed one after the other in the data area of log pages.
+ * (sometimes a DUMMY record is inserted so that at least one record ends
+ * on every page or the longest record is placed on at most two pages).
+ * the field eor in page header/trailer points to the byte following
+ * the last record on a page.
+ */
+
+/* log record types */
+#define LOG_COMMIT		0x8000
+#define LOG_SYNCPT		0x4000
+#define LOG_MOUNT		0x2000
+#define LOG_REDOPAGE		0x0800
+#define LOG_NOREDOPAGE		0x0080
+#define LOG_NOREDOINOEXT	0x0040
+#define LOG_UPDATEMAP		0x0008
+#define LOG_NOREDOFILE		0x0001
+
+/* REDOPAGE/NOREDOPAGE log record data type */
+#define	LOG_INODE		0x0001
+#define	LOG_XTREE		0x0002
+#define	LOG_DTREE		0x0004
+#define	LOG_BTROOT		0x0010
+#define	LOG_EA			0x0020
+#define	LOG_ACL			0x0040
+#define	LOG_DATA		0x0080
+#define	LOG_NEW			0x0100
+#define	LOG_EXTEND		0x0200
+#define LOG_RELOCATE		0x0400
+#define LOG_DIR_XTREE		0x0800	/* Xtree is in directory inode */
+
+/* UPDATEMAP log record descriptor type */
+#define	LOG_ALLOCXADLIST	0x0080
+#define	LOG_ALLOCPXDLIST	0x0040
+#define	LOG_ALLOCXAD		0x0020
+#define	LOG_ALLOCPXD		0x0010
+#define	LOG_FREEXADLIST		0x0008
+#define	LOG_FREEPXDLIST		0x0004
+#define	LOG_FREEXAD		0x0002
+#define	LOG_FREEPXD		0x0001
+
+
+struct lrd {
+	/*
+	 * type independent area
+	 */
+	__le32 logtid;		/* 4: log transaction identifier */
+	__le32 backchain;	/* 4: ptr to prev record of same transaction */
+	__le16 type;		/* 2: record type */
+	__le16 length;		/* 2: length of data in record (in byte) */
+	__le32 aggregate;	/* 4: file system lv/aggregate */
+	/* (16) */
+
+	/*
+	 * type dependent area (20)
+	 */
+	union {
+
+		/*
+		 *	COMMIT: commit
+		 *
+		 * transaction commit: no type-dependent information;
+		 */
+
+		/*
+		 *	REDOPAGE: after-image
+		 *
+		 * apply after-image;
+		 *
+		 * N.B. REDOPAGE, NOREDOPAGE, and UPDATEMAP must be same format;
+		 */
+		struct {
+			__le32 fileset;	/* 4: fileset number */
+			__le32 inode;	/* 4: inode number */
+			__le16 type;	/* 2: REDOPAGE record type */
+			__le16 l2linesize;	/* 2: log2 of line size */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} redopage;	/* (20) */
+
+		/*
+		 *	NOREDOPAGE: the page is freed
+		 *
+		 * do not apply after-image records which precede this record
+		 * in the log with the same page block number to this page.
+		 *
+		 * N.B. REDOPAGE, NOREDOPAGE, and UPDATEMAP must be same format;
+		 */
+		struct {
+			__le32 fileset;	/* 4: fileset number */
+			__le32 inode;	/* 4: inode number */
+			__le16 type;	/* 2: NOREDOPAGE record type */
+			__le16 rsrvd;	/* 2: reserved */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} noredopage;	/* (20) */
+
+		/*
+		 *	UPDATEMAP: update block allocation map
+		 *
+		 * either in-line PXD,
+		 * or     out-of-line  XADLIST;
+		 *
+		 * N.B. REDOPAGE, NOREDOPAGE, and UPDATEMAP must be same format;
+		 */
+		struct {
+			__le32 fileset;	/* 4: fileset number */
+			__le32 inode;	/* 4: inode number */
+			__le16 type;	/* 2: UPDATEMAP record type */
+			__le16 nxd;	/* 2: number of extents */
+			pxd_t pxd;	/* 8: pxd */
+		} updatemap;	/* (20) */
+
+		/*
+		 *	NOREDOINOEXT: the inode extent is freed
+		 *
+		 * do not apply after-image records which precede this
+		 * record in the log with the any of the 4 page block
+		 * numbers in this inode extent.
+		 *
+		 * NOTE: The fileset and pxd fields MUST remain in
+		 *       the same fields in the REDOPAGE record format.
+		 *
+		 */
+		struct {
+			__le32 fileset;	/* 4: fileset number */
+			__le32 iagnum;	/* 4: IAG number     */
+			__le32 inoext_idx;	/* 4: inode extent index */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} noredoinoext;	/* (20) */
+
+		/*
+		 *	SYNCPT: log sync point
+		 *
+		 * replay log up to syncpt address specified;
+		 */
+		struct {
+			__le32 sync;	/* 4: syncpt address (0 = here) */
+		} syncpt;
+
+		/*
+		 *	MOUNT: file system mount
+		 *
+		 * file system mount: no type-dependent information;
+		 */
+
+		/*
+		 *	? FREEXTENT: free specified extent(s)
+		 *
+		 * free specified extent(s) from block allocation map
+		 * N.B.: nextents should be length of data/sizeof(xad_t)
+		 */
+		struct {
+			__le32 type;	/* 4: FREEXTENT record type */
+			__le32 nextent;	/* 4: number of extents */
+
+			/* data: PXD or XAD list */
+		} freextent;
+
+		/*
+		 *	? NOREDOFILE: this file is freed
+		 *
+		 * do not apply records which precede this record in the log
+		 * with the same inode number.
+		 *
+		 * NOREDOFILE must be the first to be written at commit
+		 * (last to be read in logredo()) - it prevents
+		 * replay of preceding updates of all preceding generations
+		 * of the inumber esp. the on-disk inode itself.
+		 */
+		struct {
+			__le32 fileset;	/* 4: fileset number */
+			__le32 inode;	/* 4: inode number */
+		} noredofile;
+
+		/*
+		 *	? NEWPAGE:
+		 *
+		 * metadata type dependent
+		 */
+		struct {
+			__le32 fileset;	/* 4: fileset number */
+			__le32 inode;	/* 4: inode number */
+			__le32 type;	/* 4: NEWPAGE record type */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} newpage;
+
+		/*
+		 *	? DUMMY: filler
+		 *
+		 * no type-dependent information
+		 */
+	} log;
+};					/* (36) */
+
+#define	LOGRDSIZE	(sizeof(struct lrd))
+
+/*
+ *	line vector descriptor
+ */
+struct lvd {
+	__le16 offset;
+	__le16 length;
+};
+
+
+/*
+ *	log logical volume
+ */
+struct jfs_log {
+
+	struct list_head sb_list;/*  This is used to sync metadata
+				 *    before writing syncpt.
+				 */
+	struct list_head journal_list; /* Global list */
+	struct block_device *bdev; /* 4: log lv pointer */
+	int serial;		/* 4: log mount serial number */
+
+	s64 base;		/* @8: log extent address (inline log ) */
+	int size;		/* 4: log size in log page (in page) */
+	int l2bsize;		/* 4: log2 of bsize */
+
+	unsigned long flag;	/* 4: flag */
+
+	struct lbuf *lbuf_free;	/* 4: free lbufs */
+	wait_queue_head_t free_wait;	/* 4: */
+
+	/* log write */
+	int logtid;		/* 4: log tid */
+	int page;		/* 4: page number of eol page */
+	int eor;		/* 4: eor of last record in eol page */
+	struct lbuf *bp;	/* 4: current log page buffer */
+
+	struct mutex loglock;	/* 4: log write serialization lock */
+
+	/* syncpt */
+	int nextsync;		/* 4: bytes to write before next syncpt */
+	int active;		/* 4: */
+	wait_queue_head_t syncwait;	/* 4: */
+
+	/* commit */
+	uint cflag;		/* 4: */
+	struct list_head cqueue; /* FIFO commit queue */
+	struct tblock *flush_tblk; /* tblk we're waiting on for flush */
+	int gcrtc;		/* 4: GC_READY transaction count */
+	struct tblock *gclrt;	/* 4: latest GC_READY transaction */
+	spinlock_t gclock;	/* 4: group commit lock */
+	int logsize;		/* 4: log data area size in byte */
+	int lsn;		/* 4: end-of-log */
+	int clsn;		/* 4: clsn */
+	int syncpt;		/* 4: addr of last syncpt record */
+	int sync;		/* 4: addr from last logsync() */
+	struct list_head synclist;	/* 8: logsynclist anchor */
+	spinlock_t synclock;	/* 4: synclist lock */
+	struct lbuf *wqueue;	/* 4: log pageout queue */
+	int count;		/* 4: count */
+	uuid_t uuid;		/* 16: 128-bit uuid of log device */
+
+	int no_integrity;	/* 3: flag to disable journaling to disk */
+};
+
+/*
+ * Log flag
+ */
+#define log_INLINELOG	1
+#define log_SYNCBARRIER	2
+#define log_QUIESCE	3
+#define log_FLUSH	4
+
+/*
+ * group commit flag
+ */
+/* jfs_log */
+#define logGC_PAGEOUT	0x00000001
+
+/* tblock/lbuf */
+#define tblkGC_QUEUE		0x0001
+#define tblkGC_READY		0x0002
+#define tblkGC_COMMIT		0x0004
+#define tblkGC_COMMITTED	0x0008
+#define tblkGC_EOP		0x0010
+#define tblkGC_FREE		0x0020
+#define tblkGC_LEADER		0x0040
+#define tblkGC_ERROR		0x0080
+#define tblkGC_LAZY		0x0100	// D230860
+#define tblkGC_UNLOCKED		0x0200	// D230860
+
+/*
+ *		log cache buffer header
+ */
+struct lbuf {
+	struct jfs_log *l_log;	/* 4: log associated with buffer */
+
+	/*
+	 * data buffer base area
+	 */
+	uint l_flag;		/* 4: pageout control flags */
+
+	struct lbuf *l_wqnext;	/* 4: write queue link */
+	struct lbuf *l_freelist;	/* 4: freelistlink */
+
+	int l_pn;		/* 4: log page number */
+	int l_eor;		/* 4: log record eor */
+	int l_ceor;		/* 4: committed log record eor */
+
+	s64 l_blkno;		/* 8: log page block number */
+	caddr_t l_ldata;	/* 4: data page */
+	struct page *l_page;	/* The page itself */
+	uint l_offset;		/* Offset of l_ldata within the page */
+
+	wait_queue_head_t l_ioevent;	/* 4: i/o done event */
+};
+
+/* Reuse l_freelist for redrive list */
+#define l_redrive_next l_freelist
+
+/*
+ *	logsynclist block
+ *
+ * common logsyncblk prefix for jbuf_t and tblock
+ */
+struct logsyncblk {
+	u16 xflag;		/* flags */
+	u16 flag;		/* only meaninful in tblock */
+	lid_t lid;		/* lock id */
+	s32 lsn;		/* log sequence number */
+	struct list_head synclist;	/* log sync list link */
+};
+
+/*
+ *	logsynclist serialization (per log)
+ */
+
+#define LOGSYNC_LOCK_INIT(log) spin_lock_init(&(log)->synclock)
+#define LOGSYNC_LOCK(log, flags) spin_lock_irqsave(&(log)->synclock, flags)
+#define LOGSYNC_UNLOCK(log, flags) \
+	spin_unlock_irqrestore(&(log)->synclock, flags)
+
+/* compute the difference in bytes of lsn from sync point */
+#define logdiff(diff, lsn, log)\
+{\
+	diff = (lsn) - (log)->syncpt;\
+	if (diff < 0)\
+		diff += (log)->logsize;\
+}
+
+extern int lmLogOpen(struct super_block *sb);
+extern int lmLogClose(struct super_block *sb);
+extern int lmLogShutdown(struct jfs_log * log);
+extern int lmLogInit(struct jfs_log * log);
+extern int lmLogFormat(struct jfs_log *log, s64 logAddress, int logSize);
+extern int lmGroupCommit(struct jfs_log *, struct tblock *);
+extern int jfsIOWait(void *);
+extern void jfs_flush_journal(struct jfs_log * log, int wait);
+extern void jfs_syncpt(struct jfs_log *log, int hard_sync);
+
+#endif				/* _H_JFS_LOGMGR */