212 lines
6.7 KiB
C
212 lines
6.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __LIBXFS_H__
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#define __LIBXFS_H__
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#include "libxfs_api_defs.h"
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#include "platform_defs.h"
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#include "xfs.h"
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#include "list.h"
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#include "hlist.h"
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#include "cache.h"
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#include "bitops.h"
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#include "kmem.h"
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#include "libfrog/radix-tree.h"
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#include "atomic.h"
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#include "xfs_types.h"
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#include "xfs_fs.h"
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#include "xfs_arch.h"
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#include "xfs_shared.h"
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#include "xfs_format.h"
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#include "xfs_log_format.h"
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#include "xfs_quota_defs.h"
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#include "xfs_trans_resv.h"
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/* CRC stuff, buffer API dependent on it */
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extern uint32_t crc32c_le(uint32_t crc, unsigned char const *p, size_t len);
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#define crc32c(c,p,l) crc32c_le((c),(unsigned char const *)(p),(l))
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#include "xfs_cksum.h"
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/*
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* This mirrors the kernel include for xfs_buf.h - it's implicitly included in
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* every files via a similar include in the kernel xfs_linux.h.
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*/
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#include "libxfs_io.h"
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#include "xfs_bit.h"
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#include "xfs_sb.h"
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#include "xfs_mount.h"
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#include "xfs_defer.h"
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#include "xfs_errortag.h"
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#include "xfs_da_format.h"
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#include "xfs_da_btree.h"
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#include "xfs_dir2.h"
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#include "xfs_bmap_btree.h"
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#include "xfs_alloc_btree.h"
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#include "xfs_ialloc_btree.h"
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#include "xfs_attr_sf.h"
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#include "xfs_inode_fork.h"
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#include "xfs_inode_buf.h"
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#include "xfs_inode.h"
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#include "xfs_alloc.h"
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#include "xfs_btree.h"
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#include "xfs_btree_trace.h"
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#include "xfs_bmap.h"
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#include "xfs_trace.h"
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#include "xfs_trans.h"
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#include "xfs_ag.h"
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#include "xfs_rmap_btree.h"
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#include "xfs_rmap.h"
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#include "xfs_refcount_btree.h"
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#include "xfs_refcount.h"
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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#ifndef XFS_SUPER_MAGIC
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#define XFS_SUPER_MAGIC 0x58465342
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#endif
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#define xfs_isset(a,i) ((a)[(i)/(sizeof(*(a))*NBBY)] & (1ULL<<((i)%(sizeof(*(a))*NBBY))))
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/*
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* Argument structure for libxfs_init().
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*/
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typedef struct libxfs_xinit {
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/* input parameters */
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char *volname; /* pathname of volume */
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char *dname; /* pathname of data "subvolume" */
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char *logname; /* pathname of log "subvolume" */
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char *rtname; /* pathname of realtime "subvolume" */
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int isreadonly; /* filesystem is only read in applic */
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int isdirect; /* we can attempt to use direct I/O */
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int disfile; /* data "subvolume" is a regular file */
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int dcreat; /* try to create data subvolume */
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int lisfile; /* log "subvolume" is a regular file */
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int lcreat; /* try to create log subvolume */
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int risfile; /* realtime "subvolume" is a reg file */
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int rcreat; /* try to create realtime subvolume */
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int setblksize; /* attempt to set device blksize */
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int usebuflock; /* lock xfs_buf_t's - for MT usage */
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/* output results */
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dev_t ddev; /* device for data subvolume */
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dev_t logdev; /* device for log subvolume */
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dev_t rtdev; /* device for realtime subvolume */
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long long dsize; /* size of data subvolume (BBs) */
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long long logBBsize; /* size of log subvolume (BBs) */
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/* (blocks allocated for use as
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* log is stored in mount structure) */
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long long logBBstart; /* start block of log subvolume (BBs) */
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long long rtsize; /* size of realtime subvolume (BBs) */
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int dbsize; /* data subvolume device blksize */
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int lbsize; /* log subvolume device blksize */
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int rtbsize; /* realtime subvolume device blksize */
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int dfd; /* data subvolume file descriptor */
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int logfd; /* log subvolume file descriptor */
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int rtfd; /* realtime subvolume file descriptor */
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int icache_flags; /* cache init flags */
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int bcache_flags; /* cache init flags */
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} libxfs_init_t;
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#define LIBXFS_EXIT_ON_FAILURE 0x0001 /* exit the program if a call fails */
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#define LIBXFS_ISREADONLY 0x0002 /* disallow all mounted filesystems */
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#define LIBXFS_ISINACTIVE 0x0004 /* allow mounted only if mounted ro */
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#define LIBXFS_DANGEROUSLY 0x0008 /* repairing a device mounted ro */
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#define LIBXFS_EXCLUSIVELY 0x0010 /* disallow other accesses (O_EXCL) */
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#define LIBXFS_DIRECT 0x0020 /* can use direct I/O, not buffered */
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extern char *progname;
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extern xfs_lsn_t libxfs_max_lsn;
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extern int libxfs_init (libxfs_init_t *);
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extern void libxfs_destroy (void);
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extern int libxfs_device_to_fd (dev_t);
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extern dev_t libxfs_device_open (char *, int, int, int);
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extern void libxfs_device_close (dev_t);
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extern int libxfs_device_alignment (void);
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extern void libxfs_report(FILE *);
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/* check or write log footer: specify device, log size in blocks & uuid */
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typedef char *(libxfs_get_block_t)(char *, int, void *);
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/*
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* Helpers to clear the log to a particular log cycle.
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*/
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#define XLOG_INIT_CYCLE 1
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extern int libxfs_log_clear(struct xfs_buftarg *, char *, xfs_daddr_t,
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uint, uuid_t *, int, int, int, int, bool);
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extern int libxfs_log_header(char *, uuid_t *, int, int, int, xfs_lsn_t,
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xfs_lsn_t, libxfs_get_block_t *, void *);
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/* Shared utility routines */
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extern int libxfs_alloc_file_space (struct xfs_inode *, xfs_off_t,
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xfs_off_t, int, int);
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/* XXX: this is messy and needs fixing */
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#ifndef __LIBXFS_INTERNAL_XFS_H__
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extern void cmn_err(int, char *, ...);
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enum ce { CE_DEBUG, CE_CONT, CE_NOTE, CE_WARN, CE_ALERT, CE_PANIC };
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#endif
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#include "xfs_ialloc.h"
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#include "xfs_attr_leaf.h"
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#include "xfs_attr_remote.h"
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#include "xfs_trans_space.h"
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#define XFS_INOBT_IS_FREE_DISK(rp,i) \
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((be64_to_cpu((rp)->ir_free) & XFS_INOBT_MASK(i)) != 0)
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static inline bool
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xfs_inobt_is_sparse_disk(
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struct xfs_inobt_rec *rp,
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int offset)
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{
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int spshift;
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uint16_t holemask;
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holemask = be16_to_cpu(rp->ir_u.sp.ir_holemask);
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spshift = offset / XFS_INODES_PER_HOLEMASK_BIT;
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if ((1 << spshift) & holemask)
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return true;
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return false;
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}
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static inline void
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libxfs_bmbt_disk_get_all(
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struct xfs_bmbt_rec *rec,
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struct xfs_bmbt_irec *irec)
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{
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uint64_t l0 = get_unaligned_be64(&rec->l0);
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uint64_t l1 = get_unaligned_be64(&rec->l1);
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irec->br_startoff = (l0 & xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
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irec->br_startblock = ((l0 & xfs_mask64lo(9)) << 43) | (l1 >> 21);
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irec->br_blockcount = l1 & xfs_mask64lo(21);
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if (l0 >> (64 - BMBT_EXNTFLAG_BITLEN))
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irec->br_state = XFS_EXT_UNWRITTEN;
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else
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irec->br_state = XFS_EXT_NORM;
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}
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/* XXX: this is clearly a bug - a shared header needs to export this */
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/* xfs_rtalloc.c */
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int libxfs_rtfree_extent(struct xfs_trans *, xfs_rtblock_t, xfs_extlen_t);
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bool libxfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
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#include "xfs_attr.h"
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#endif /* __LIBXFS_H__ */
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