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, 303 insertions, 0 deletions

diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
new file mode 100644
index 000000000..aa03a904d
--- /dev/null
+++ b/fs/jfs/jfs_dmap.h
@@ -0,0 +1,303 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2002
+ */
+#ifndef	_H_JFS_DMAP
+#define _H_JFS_DMAP
+
+#include "jfs_txnmgr.h"
+
+#define BMAPVERSION	1	/* version number */
+#define	TREESIZE	(256+64+16+4+1)	/* size of a dmap tree */
+#define	LEAFIND		(64+16+4+1)	/* index of 1st leaf of a dmap tree */
+#define LPERDMAP	256	/* num leaves per dmap tree */
+#define L2LPERDMAP	8	/* l2 number of leaves per dmap tree */
+#define	DBWORD		32	/* # of blks covered by a map word */
+#define	L2DBWORD	5	/* l2 # of blks covered by a mword */
+#define BUDMIN		L2DBWORD	/* max free string in a map word */
+#define BPERDMAP	(LPERDMAP * DBWORD)	/* num of blks per dmap */
+#define L2BPERDMAP	13	/* l2 num of blks per dmap */
+#define CTLTREESIZE	(1024+256+64+16+4+1)	/* size of a dmapctl tree */
+#define CTLLEAFIND	(256+64+16+4+1)	/* idx of 1st leaf of a dmapctl tree */
+#define LPERCTL		1024	/* num of leaves per dmapctl tree */
+#define L2LPERCTL	10	/* l2 num of leaves per dmapctl tree */
+#define	ROOT		0	/* index of the root of a tree */
+#define	NOFREE		((s8) -1)	/* no blocks free */
+#define	MAXAG		128	/* max number of allocation groups */
+#define L2MAXAG		7	/* l2 max num of AG */
+#define L2MINAGSZ	25	/* l2 of minimum AG size in bytes */
+#define	BMAPBLKNO	0	/* lblkno of bmap within the map */
+
+/*
+ * maximum l2 number of disk blocks at the various dmapctl levels.
+ */
+#define	L2MAXL0SIZE	(L2BPERDMAP + 1 * L2LPERCTL)
+#define	L2MAXL1SIZE	(L2BPERDMAP + 2 * L2LPERCTL)
+#define	L2MAXL2SIZE	(L2BPERDMAP + 3 * L2LPERCTL)
+
+/*
+ * maximum number of disk blocks at the various dmapctl levels.
+ */
+#define	MAXL0SIZE	((s64)1 << L2MAXL0SIZE)
+#define	MAXL1SIZE	((s64)1 << L2MAXL1SIZE)
+#define	MAXL2SIZE	((s64)1 << L2MAXL2SIZE)
+
+#define	MAXMAPSIZE	MAXL2SIZE	/* maximum aggregate map size */
+
+/*
+ * determine the maximum free string for four (lower level) nodes
+ * of the tree.
+ */
+static inline signed char TREEMAX(signed char *cp)
+{
+	signed char tmp1, tmp2;
+
+	tmp1 = max(*(cp+2), *(cp+3));
+	tmp2 = max(*(cp), *(cp+1));
+
+	return max(tmp1, tmp2);
+}
+
+/*
+ * convert disk block number to the logical block number of the dmap
+ * describing the disk block.  s is the log2(number of logical blocks per page)
+ *
+ * The calculation figures out how many logical pages are in front of the dmap.
+ *	- the number of dmaps preceding it
+ *	- the number of L0 pages preceding its L0 page
+ *	- the number of L1 pages preceding its L1 page
+ *	- 3 is added to account for the L2, L1, and L0 page for this dmap
+ *	- 1 is added to account for the control page of the map.
+ */
+#define BLKTODMAP(b,s)    \
+	((((b) >> 13) + ((b) >> 23) + ((b) >> 33) + 3 + 1) << (s))
+
+/*
+ * convert disk block number to the logical block number of the LEVEL 0
+ * dmapctl describing the disk block.  s is the log2(number of logical blocks
+ * per page)
+ *
+ * The calculation figures out how many logical pages are in front of the L0.
+ *	- the number of dmap pages preceding it
+ *	- the number of L0 pages preceding it
+ *	- the number of L1 pages preceding its L1 page
+ *	- 2 is added to account for the L2, and L1 page for this L0
+ *	- 1 is added to account for the control page of the map.
+ */
+#define BLKTOL0(b,s)      \
+	(((((b) >> 23) << 10) + ((b) >> 23) + ((b) >> 33) + 2 + 1) << (s))
+
+/*
+ * convert disk block number to the logical block number of the LEVEL 1
+ * dmapctl describing the disk block.  s is the log2(number of logical blocks
+ * per page)
+ *
+ * The calculation figures out how many logical pages are in front of the L1.
+ *	- the number of dmap pages preceding it
+ *	- the number of L0 pages preceding it
+ *	- the number of L1 pages preceding it
+ *	- 1 is added to account for the L2 page
+ *	- 1 is added to account for the control page of the map.
+ */
+#define BLKTOL1(b,s)      \
+     (((((b) >> 33) << 20) + (((b) >> 33) << 10) + ((b) >> 33) + 1 + 1) << (s))
+
+/*
+ * convert disk block number to the logical block number of the dmapctl
+ * at the specified level which describes the disk block.
+ */
+#define BLKTOCTL(b,s,l)   \
+	(((l) == 2) ? 1 : ((l) == 1) ? BLKTOL1((b),(s)) : BLKTOL0((b),(s)))
+
+/*
+ * convert aggregate map size to the zero origin dmapctl level of the
+ * top dmapctl.
+ */
+#define	BMAPSZTOLEV(size)	\
+	(((size) <= MAXL0SIZE) ? 0 : ((size) <= MAXL1SIZE) ? 1 : 2)
+
+/* convert disk block number to allocation group number.
+ */
+#define BLKTOAG(b,sbi)	((b) >> ((sbi)->bmap->db_agl2size))
+
+/* convert allocation group number to starting disk block
+ * number.
+ */
+#define AGTOBLK(a,ip)	\
+	((s64)(a) << (JFS_SBI((ip)->i_sb)->bmap->db_agl2size))
+
+/*
+ *	dmap summary tree
+ *
+ * dmaptree must be consistent with dmapctl.
+ */
+struct dmaptree {
+	__le32 nleafs;		/* 4: number of tree leafs	*/
+	__le32 l2nleafs;	/* 4: l2 number of tree leafs	*/
+	__le32 leafidx;		/* 4: index of first tree leaf	*/
+	__le32 height;		/* 4: height of the tree	*/
+	s8 budmin;		/* 1: min l2 tree leaf value to combine */
+	s8 stree[TREESIZE];	/* TREESIZE: tree		*/
+	u8 pad[2];		/* 2: pad to word boundary	*/
+};				/* - 360 -			*/
+
+/*
+ *	dmap page per 8K blocks bitmap
+ */
+struct dmap {
+	__le32 nblocks;		/* 4: num blks covered by this dmap	*/
+	__le32 nfree;		/* 4: num of free blks in this dmap	*/
+	__le64 start;		/* 8: starting blkno for this dmap	*/
+	struct dmaptree tree;	/* 360: dmap tree			*/
+	u8 pad[1672];		/* 1672: pad to 2048 bytes		*/
+	__le32 wmap[LPERDMAP];	/* 1024: bits of the working map	*/
+	__le32 pmap[LPERDMAP];	/* 1024: bits of the persistent map	*/
+};				/* - 4096 -				*/
+
+/*
+ *	disk map control page per level.
+ *
+ * dmapctl must be consistent with dmaptree.
+ */
+struct dmapctl {
+	__le32 nleafs;		/* 4: number of tree leafs	*/
+	__le32 l2nleafs;	/* 4: l2 number of tree leafs	*/
+	__le32 leafidx;		/* 4: index of the first tree leaf	*/
+	__le32 height;		/* 4: height of tree		*/
+	s8 budmin;		/* 1: minimum l2 tree leaf value	*/
+	s8 stree[CTLTREESIZE];	/* CTLTREESIZE: dmapctl tree	*/
+	u8 pad[2714];		/* 2714: pad to 4096		*/
+};				/* - 4096 -			*/
+
+/*
+ *	common definition for dmaptree within dmap and dmapctl
+ */
+typedef union dmtree {
+	struct dmaptree t1;
+	struct dmapctl t2;
+} dmtree_t;
+
+/* macros for accessing fields within dmtree */
+#define	dmt_nleafs	t1.nleafs
+#define	dmt_l2nleafs	t1.l2nleafs
+#define	dmt_leafidx	t1.leafidx
+#define	dmt_height	t1.height
+#define	dmt_budmin	t1.budmin
+#define	dmt_stree	t2.stree
+
+/*
+ *	on-disk aggregate disk allocation map descriptor.
+ */
+struct dbmap_disk {
+	__le64 dn_mapsize;	/* 8: number of blocks in aggregate	*/
+	__le64 dn_nfree;	/* 8: num free blks in aggregate map	*/
+	__le32 dn_l2nbperpage;	/* 4: number of blks per page		*/
+	__le32 dn_numag;	/* 4: total number of ags		*/
+	__le32 dn_maxlevel;	/* 4: number of active ags		*/
+	__le32 dn_maxag;	/* 4: max active alloc group number	*/
+	__le32 dn_agpref;	/* 4: preferred alloc group (hint)	*/
+	__le32 dn_aglevel;	/* 4: dmapctl level holding the AG	*/
+	__le32 dn_agheight;	/* 4: height in dmapctl of the AG	*/
+	__le32 dn_agwidth;	/* 4: width in dmapctl of the AG	*/
+	__le32 dn_agstart;	/* 4: start tree index at AG height	*/
+	__le32 dn_agl2size;	/* 4: l2 num of blks per alloc group	*/
+	__le64 dn_agfree[MAXAG];/* 8*MAXAG: per AG free count		*/
+	__le64 dn_agsize;	/* 8: num of blks per alloc group	*/
+	s8 dn_maxfreebud;	/* 1: max free buddy system		*/
+	u8 pad[3007];		/* 3007: pad to 4096			*/
+};				/* - 4096 -				*/
+
+struct dbmap {
+	s64 dn_mapsize;		/* number of blocks in aggregate	*/
+	s64 dn_nfree;		/* num free blks in aggregate map	*/
+	int dn_l2nbperpage;	/* number of blks per page		*/
+	int dn_numag;		/* total number of ags			*/
+	int dn_maxlevel;	/* number of active ags			*/
+	int dn_maxag;		/* max active alloc group number	*/
+	int dn_agpref;		/* preferred alloc group (hint)		*/
+	int dn_aglevel;		/* dmapctl level holding the AG		*/
+	int dn_agheight;	/* height in dmapctl of the AG		*/
+	int dn_agwidth;		/* width in dmapctl of the AG		*/
+	int dn_agstart;		/* start tree index at AG height	*/
+	int dn_agl2size;	/* l2 num of blks per alloc group	*/
+	s64 dn_agfree[MAXAG];	/* per AG free count			*/
+	s64 dn_agsize;		/* num of blks per alloc group		*/
+	signed char dn_maxfreebud;	/* max free buddy system	*/
+};				/* - 4096 -				*/
+/*
+ *	in-memory aggregate disk allocation map descriptor.
+ */
+struct bmap {
+	struct dbmap db_bmap;		/* on-disk aggregate map descriptor */
+	struct inode *db_ipbmap;	/* ptr to aggregate map incore inode */
+	struct mutex db_bmaplock;	/* aggregate map lock */
+	atomic_t db_active[MAXAG];	/* count of active, open files in AG */
+	u32 *db_DBmap;
+};
+
+/* macros for accessing fields within in-memory aggregate map descriptor */
+#define	db_mapsize	db_bmap.dn_mapsize
+#define	db_nfree	db_bmap.dn_nfree
+#define	db_agfree	db_bmap.dn_agfree
+#define	db_agsize	db_bmap.dn_agsize
+#define	db_agl2size	db_bmap.dn_agl2size
+#define	db_agwidth	db_bmap.dn_agwidth
+#define	db_agheight	db_bmap.dn_agheight
+#define	db_agstart	db_bmap.dn_agstart
+#define	db_numag	db_bmap.dn_numag
+#define	db_maxlevel	db_bmap.dn_maxlevel
+#define	db_aglevel	db_bmap.dn_aglevel
+#define	db_agpref	db_bmap.dn_agpref
+#define	db_maxag	db_bmap.dn_maxag
+#define	db_maxfreebud	db_bmap.dn_maxfreebud
+#define	db_l2nbperpage	db_bmap.dn_l2nbperpage
+
+/*
+ * macros for various conversions needed by the allocators.
+ * blkstol2(), cntlz(), and cnttz() are operating system dependent functions.
+ */
+/* convert number of blocks to log2 number of blocks, rounding up to
+ * the next log2 value if blocks is not a l2 multiple.
+ */
+#define	BLKSTOL2(d)		(blkstol2(d))
+
+/* convert number of leafs to log2 leaf value */
+#define	NLSTOL2BSZ(n)		(31 - cntlz((n)) + BUDMIN)
+
+/* convert leaf index to log2 leaf value */
+#define	LITOL2BSZ(n,m,b)	((((n) == 0) ? (m) : cnttz((n))) + (b))
+
+/* convert a block number to a dmap control leaf index */
+#define BLKTOCTLLEAF(b,m)	\
+	(((b) & (((s64)1 << ((m) + L2LPERCTL)) - 1)) >> (m))
+
+/* convert log2 leaf value to buddy size */
+#define	BUDSIZE(s,m)		(1 << ((s) - (m)))
+
+/*
+ *	external references.
+ */
+extern int dbMount(struct inode *ipbmap);
+
+extern int dbUnmount(struct inode *ipbmap, int mounterror);
+
+extern int dbFree(struct inode *ipbmap, s64 blkno, s64 nblocks);
+
+extern int dbUpdatePMap(struct inode *ipbmap,
+			int free, s64 blkno, s64 nblocks, struct tblock * tblk);
+
+extern int dbNextAG(struct inode *ipbmap);
+
+extern int dbAlloc(struct inode *ipbmap, s64 hint, s64 nblocks, s64 * results);
+
+extern int dbReAlloc(struct inode *ipbmap,
+		     s64 blkno, s64 nblocks, s64 addnblocks, s64 * results);
+
+extern int dbSync(struct inode *ipbmap);
+extern int dbAllocBottomUp(struct inode *ip, s64 blkno, s64 nblocks);
+extern int dbExtendFS(struct inode *ipbmap, s64 blkno, s64 nblocks);
+extern void dbFinalizeBmap(struct inode *ipbmap);
+extern s64 dbMapFileSizeToMapSize(struct inode *ipbmap);
+extern s64 dbDiscardAG(struct inode *ip, int agno, s64 minlen);
+
+#endif				/* _H_JFS_DMAP */