+// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*/
-#ifndef __XFS_INODE_H__
-#define __XFS_INODE_H__
-/*
- * File incore extent information, present for each of data & attr forks.
- */
-#define XFS_INLINE_EXTS 2
-#define XFS_INLINE_DATA 32
-typedef struct xfs_ifork {
- int if_bytes; /* bytes in if_u1 */
- int if_real_bytes; /* bytes allocated in if_u1 */
- xfs_bmbt_block_t *if_broot; /* file's incore btree root */
- short if_broot_bytes; /* bytes allocated for root */
- unsigned char if_flags; /* per-fork flags */
- unsigned char if_ext_max; /* max # of extent records */
- xfs_extnum_t if_lastex; /* last if_extents used */
- union {
- xfs_bmbt_rec_t *if_extents; /* linear map file exts */
- char *if_data; /* inline file data */
- } if_u1;
- union {
- xfs_bmbt_rec_t if_inline_ext[XFS_INLINE_EXTS];
- /* very small file extents */
- char if_inline_data[XFS_INLINE_DATA];
- /* very small file data */
- xfs_dev_t if_rdev; /* dev number if special */
- uuid_t if_uuid; /* mount point value */
- } if_u2;
-} xfs_ifork_t;
+#ifndef __XFS_INODE_H__
+#define __XFS_INODE_H__
-/*
- * Flags for xfs_ichgtime().
- */
-#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
-#define XFS_ICHGTIME_ACC 0x2 /* data fork access timestamp */
-#define XFS_ICHGTIME_CHG 0x4 /* inode field change timestamp */
-
-/*
- * Per-fork incore inode flags.
- */
-#define XFS_IFINLINE 0x0001 /* Inline data is read in */
-#define XFS_IFEXTENTS 0x0002 /* All extent pointers are read in */
-#define XFS_IFBROOT 0x0004 /* i_broot points to the bmap b-tree root */
+/* These match kernel side includes */
+#include "xfs_inode_buf.h"
+#include "xfs_inode_fork.h"
-/*
- * Flags for xfs_imap() and xfs_dilocate().
- */
-#define XFS_IMAP_LOOKUP 0x1
-
-/*
- * Maximum number of extent pointers in if_u1.if_extents.
- */
-#define XFS_MAX_INCORE_EXTENTS 32768
-
-
-#ifdef __KERNEL__
-struct bhv_desc;
-struct cred;
-struct ktrace;
-struct vnode;
-struct xfs_buf;
-struct xfs_bmap_free;
-struct xfs_bmbt_irec;
-struct xfs_bmbt_block;
-struct xfs_inode;
-struct xfs_inode_log_item;
-struct xfs_mount;
struct xfs_trans;
-struct xfs_dquot;
-
-
-/*
- * This structure is used to communicate which extents of a file
- * were holes when a write started from xfs_write_file() to
- * xfs_strat_read(). This is necessary so that we can know which
- * blocks need to be zeroed when they are read in in xfs_strat_read()
- * if they weren\'t allocated when the buffer given to xfs_strat_read()
- * was mapped.
- *
- * We keep a list of these attached to the inode. The list is
- * protected by the inode lock and the fact that the io lock is
- * held exclusively by writers.
- */
-typedef struct xfs_gap {
- struct xfs_gap *xg_next;
- xfs_fileoff_t xg_offset_fsb;
- xfs_extlen_t xg_count_fsb;
-} xfs_gap_t;
-
-typedef struct dm_attrs_s {
- __uint32_t da_dmevmask; /* DMIG event mask */
- __uint16_t da_dmstate; /* DMIG state info */
- __uint16_t da_pad; /* DMIG extra padding */
-} dm_attrs_t;
-
-typedef struct xfs_iocore {
- void *io_obj; /* pointer to container
- * inode or dcxvn structure */
- struct xfs_mount *io_mount; /* fs mount struct ptr */
-#ifdef DEBUG
- mrlock_t *io_lock; /* inode IO lock */
- mrlock_t *io_iolock; /* inode IO lock */
-#endif
-
- /* I/O state */
- xfs_fsize_t io_new_size; /* sz when write completes */
-
- /* Miscellaneous state. */
- unsigned int io_flags; /* IO related flags */
-
- /* DMAPI state */
- dm_attrs_t io_dmattrs;
-
-} xfs_iocore_t;
-
-#define io_dmevmask io_dmattrs.da_dmevmask
-#define io_dmstate io_dmattrs.da_dmstate
-
-#define XFS_IO_INODE(io) ((xfs_inode_t *) ((io)->io_obj))
-#define XFS_IO_DCXVN(io) ((dcxvn_t *) ((io)->io_obj))
-
-/*
- * Flags in the flags field
- */
-
-#define XFS_IOCORE_RT 0x1
-
-/*
- * xfs_iocore prototypes
- */
-
-extern void xfs_iocore_inode_init(struct xfs_inode *);
-extern void xfs_iocore_inode_reinit(struct xfs_inode *);
-
-
-/*
- * This is the type used in the xfs inode hash table.
- * An array of these is allocated for each mounted
- * file system to hash the inodes for that file system.
- */
-typedef struct xfs_ihash {
- struct xfs_inode *ih_next;
- rwlock_t ih_lock;
- uint ih_version;
-} xfs_ihash_t;
-
-/*
- * Inode hashing and hash bucket locking.
- */
-#define XFS_BUCKETS(mp) (37*(mp)->m_sb.sb_agcount-1)
-#define XFS_IHASH(mp,ino) ((mp)->m_ihash + (((uint)ino) % (mp)->m_ihsize))
-
-/*
- * This is the xfs inode cluster hash. This hash is used by xfs_iflush to
- * find inodes that share a cluster and can be flushed to disk at the same
- * time.
- */
-
-typedef struct xfs_chashlist {
- struct xfs_chashlist *chl_next;
- struct xfs_inode *chl_ip;
- xfs_daddr_t chl_blkno; /* starting block number of
- * the cluster */
- struct xfs_buf *chl_buf; /* the inode buffer */
-} xfs_chashlist_t;
-
-typedef struct xfs_chash {
- xfs_chashlist_t *ch_list;
- lock_t ch_lock;
-} xfs_chash_t;
-
+struct xfs_mount;
+struct xfs_inode_log_item;
+struct xfs_dir_ops;
/*
- * This is the xfs in-core inode structure.
- * Most of the on-disk inode is embedded in the i_d field.
- *
- * The extent pointers/inline file space, however, are managed
- * separately. The memory for this information is pointed to by
- * the if_u1 unions depending on the type of the data.
- * This is used to linearize the array of extents for fast in-core
- * access. This is used until the file's number of extents
- * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
- * are accessed through the buffer cache.
- *
- * Other state kept in the in-core inode is used for identification,
- * locking, transactional updating, etc of the inode.
- *
- * Generally, we do not want to hold the i_rlock while holding the
- * i_ilock. Hierarchy is i_iolock followed by i_rlock.
- *
- * xfs_iptr_t contains all the inode fields upto and including the
- * i_mnext and i_mprev fields, it is used as a marker in the inode
- * chain off the mount structure by xfs_sync calls.
+ * Inode interface. This fakes up a "VFS inode" to make the xfs_inode appear
+ * similar to the kernel which now is used tohold certain parts of the on-disk
+ * metadata.
*/
-
-typedef struct {
- struct xfs_ihash *ip_hash; /* pointer to hash header */
- struct xfs_inode *ip_next; /* inode hash link forw */
- struct xfs_inode *ip_mnext; /* next inode in mount list */
- struct xfs_inode *ip_mprev; /* ptr to prev inode */
- struct xfs_inode **ip_prevp; /* ptr to prev i_next */
- struct xfs_mount *ip_mount; /* fs mount struct ptr */
-} xfs_iptr_t;
+struct inode {
+ mode_t i_mode;
+ uint32_t i_nlink;
+ xfs_dev_t i_rdev; /* This actually holds xfs_dev_t */
+ uint32_t i_generation;
+ uint64_t i_version;
+ struct timespec i_atime;
+ struct timespec i_mtime;
+ struct timespec i_ctime;
+};
typedef struct xfs_inode {
- /* Inode linking and identification information. */
- struct xfs_ihash *i_hash; /* pointer to hash header */
- struct xfs_inode *i_next; /* inode hash link forw */
- struct xfs_inode *i_mnext; /* next inode in mount list */
- struct xfs_inode *i_mprev; /* ptr to prev inode */
- struct xfs_inode **i_prevp; /* ptr to prev i_next */
+ struct cache_node i_node;
struct xfs_mount *i_mount; /* fs mount struct ptr */
- struct list_head i_reclaim; /* reclaim list */
- struct bhv_desc i_bhv_desc; /* inode behavior descriptor*/
- struct xfs_dquot *i_udquot; /* user dquot */
- struct xfs_dquot *i_gdquot; /* group dquot */
-
- /* Inode location stuff */
- xfs_ino_t i_ino; /* inode number (agno/agino)*/
- xfs_daddr_t i_blkno; /* blkno of inode buffer */
- ushort i_len; /* len of inode buffer */
- ushort i_boffset; /* off of inode in buffer */
-
- /* Extent information. */
- xfs_ifork_t *i_afp; /* attribute fork pointer */
- xfs_ifork_t i_df; /* data fork */
-
- /* Transaction and locking information. */
- struct xfs_trans *i_transp; /* ptr to owning transaction*/
+ xfs_ino_t i_ino; /* inode number (agno/agino) */
+ struct xfs_imap i_imap; /* location for xfs_imap() */
+ struct xfs_buftarg i_dev; /* dev for this inode */
+ struct xfs_ifork *i_afp; /* attribute fork pointer */
+ struct xfs_ifork *i_cowfp; /* copy on write extents */
+ struct xfs_ifork i_df; /* data fork */
+ struct xfs_trans *i_transp; /* ptr to owning transaction */
struct xfs_inode_log_item *i_itemp; /* logging information */
- mrlock_t i_lock; /* inode lock */
- mrlock_t i_iolock; /* inode IO lock */
- sema_t i_flock; /* inode flush lock */
- atomic_t i_pincount; /* inode pin count */
- wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
- struct xfs_inode **i_refcache; /* ptr to entry in ref cache */
- struct xfs_inode *i_release; /* inode to unref */
-
- /* I/O state */
- xfs_iocore_t i_iocore; /* I/O core */
-
- /* Miscellaneous state. */
- unsigned short i_flags; /* see defined flags below */
- unsigned char i_update_core; /* timestamps/size is dirty */
- unsigned char i_update_size; /* di_size field is dirty */
- unsigned int i_gen; /* generation count */
unsigned int i_delayed_blks; /* count of delay alloc blks */
+ struct xfs_icdinode i_d; /* most of ondisk inode */
- xfs_dinode_core_t i_d; /* most of ondisk inode */
- xfs_chashlist_t *i_chash; /* cluster hash list header */
- struct xfs_inode *i_cnext; /* cluster hash link forward */
- struct xfs_inode *i_cprev; /* cluster hash link backward */
+ xfs_extnum_t i_cnextents; /* # of extents in cow fork */
+ unsigned int i_cformat; /* format of cow fork */
-#ifdef DEBUG
- /* Trace buffers per inode. */
- struct ktrace *i_xtrace; /* inode extent list trace */
- struct ktrace *i_btrace; /* inode bmap btree trace */
- struct ktrace *i_rwtrace; /* inode read/write trace */
- struct ktrace *i_strat_trace; /* inode strat_write trace */
- struct ktrace *i_lock_trace; /* inode lock/unlock trace */
- struct ktrace *i_dir_trace; /* inode directory trace */
-#endif /* DEBUG */
+ xfs_fsize_t i_size; /* in-memory size */
+ const struct xfs_dir_ops *d_ops; /* directory ops vector */
+ struct xfs_ifork_ops *i_fork_ops; /* fork verifiers */
+ struct inode i_vnode;
} xfs_inode_t;
-#endif /* __KERNEL__ */
-
-
-/*
- * Fork handling.
- */
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_PTR)
-xfs_ifork_t *xfs_ifork_ptr(xfs_inode_t *ip, int w);
-#define XFS_IFORK_PTR(ip,w) xfs_ifork_ptr(ip,w)
-#else
-#define XFS_IFORK_PTR(ip,w) ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_Q)
-int xfs_ifork_q(xfs_inode_t *ip);
-#define XFS_IFORK_Q(ip) xfs_ifork_q(ip)
-#else
-#define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_DSIZE)
-int xfs_ifork_dsize(xfs_inode_t *ip);
-#define XFS_IFORK_DSIZE(ip) xfs_ifork_dsize(ip)
-#else
-#define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_ASIZE)
-int xfs_ifork_asize(xfs_inode_t *ip);
-#define XFS_IFORK_ASIZE(ip) xfs_ifork_asize(ip)
-#else
-#define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_SIZE)
-int xfs_ifork_size(xfs_inode_t *ip, int w);
-#define XFS_IFORK_SIZE(ip,w) xfs_ifork_size(ip,w)
-#else
-#define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_FORMAT)
-int xfs_ifork_format(xfs_inode_t *ip, int w);
-#define XFS_IFORK_FORMAT(ip,w) xfs_ifork_format(ip,w)
-#else
-#define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_FMT_SET)
-void xfs_ifork_fmt_set(xfs_inode_t *ip, int w, int n);
-#define XFS_IFORK_FMT_SET(ip,w,n) xfs_ifork_fmt_set(ip,w,n)
-#else
-#define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_NEXTENTS)
-int xfs_ifork_nextents(xfs_inode_t *ip, int w);
-#define XFS_IFORK_NEXTENTS(ip,w) xfs_ifork_nextents(ip,w)
-#else
-#define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_NEXT_SET)
-void xfs_ifork_next_set(xfs_inode_t *ip, int w, int n);
-#define XFS_IFORK_NEXT_SET(ip,w,n) xfs_ifork_next_set(ip,w,n)
-#else
-#define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
-#endif
-
-
-#ifdef __KERNEL__
-
-/*
- * In-core inode flags.
- */
-#define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
-#define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
-#define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
-#define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
-#define XFS_IRECLAIMABLE 0x0010 /* inode can be reclaimed */
-
-/*
- * Flags for inode locking.
- */
-#define XFS_IOLOCK_EXCL 0x001
-#define XFS_IOLOCK_SHARED 0x002
-#define XFS_ILOCK_EXCL 0x004
-#define XFS_ILOCK_SHARED 0x008
-#define XFS_IUNLOCK_NONOTIFY 0x010
-#define XFS_EXTENT_TOKEN_RD 0x040
-#define XFS_SIZE_TOKEN_RD 0x080
-#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
-#define XFS_WILLLEND 0x100 /* Always acquire tokens for lending */
-#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
-#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
-#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
-
-
-#define XFS_LOCK_MASK \
- (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \
- XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \
- XFS_WILLLEND)
-
-/*
- * Flags for xfs_iflush()
- */
-#define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
-#define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
-#define XFS_IFLUSH_SYNC 3
-#define XFS_IFLUSH_ASYNC 4
-#define XFS_IFLUSH_DELWRI 5
-
-/*
- * Flags for xfs_iflush_all.
- */
-#define XFS_FLUSH_ALL 0x1
-
-/*
- * Flags for xfs_itruncate_start().
- */
-#define XFS_ITRUNC_DEFINITE 0x1
-#define XFS_ITRUNC_MAYBE 0x2
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ITOV)
-struct vnode *xfs_itov(xfs_inode_t *ip);
-#define XFS_ITOV(ip) xfs_itov(ip)
-#else
-#define XFS_ITOV(ip) BHV_TO_VNODE(XFS_ITOBHV(ip))
-#endif
-#define XFS_ITOV_NULL(ip) BHV_TO_VNODE_NULL(XFS_ITOBHV(ip))
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ITOBHV)
-struct bhv_desc *xfs_itobhv(xfs_inode_t *ip);
-#define XFS_ITOBHV(ip) xfs_itobhv(ip)
-#else
-#define XFS_ITOBHV(ip) ((struct bhv_desc *)(&((ip)->i_bhv_desc)))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOI)
-xfs_inode_t *xfs_bhvtoi(struct bhv_desc *bhvp);
-#define XFS_BHVTOI(bhvp) xfs_bhvtoi(bhvp)
-#else
-#define XFS_BHVTOI(bhvp) \
- ((xfs_inode_t *)((char *)(bhvp) - \
- (char *)&(((xfs_inode_t *)0)->i_bhv_desc)))
-#endif
-
-#define BHV_IS_XFS(bdp) (BHV_OPS(bdp) == &xfs_vnodeops)
-
-/*
- * Pick the inode cluster hash bucket
- * (m_chash is the same size as m_ihash)
- */
-#define XFS_CHASH(mp,blk) ((mp)->m_chash + (((uint)blk) % (mp)->m_chsize))
-
-/*
- * For multiple groups support: if ISGID bit is set in the parent
- * directory, group of new file is set to that of the parent, and
- * new subdirectory gets ISGID bit from parent.
- */
-#define XFS_INHERIT_GID(pip, vfsp) ((pip) != NULL && \
- (((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & ISGID)))
-
-/*
- * xfs_iget.c prototypes.
- */
-void xfs_ihash_init(struct xfs_mount *);
-void xfs_ihash_free(struct xfs_mount *);
-void xfs_chash_init(struct xfs_mount *);
-void xfs_chash_free(struct xfs_mount *);
-xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
- struct xfs_trans *);
-void xfs_inode_lock_init(xfs_inode_t *, struct vnode *);
-int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
- uint, xfs_inode_t **, xfs_daddr_t);
-void xfs_iput(xfs_inode_t *, uint);
-void xfs_iput_new(xfs_inode_t *, uint);
-void xfs_ilock(xfs_inode_t *, uint);
-int xfs_ilock_nowait(xfs_inode_t *, uint);
-void xfs_iunlock(xfs_inode_t *, uint);
-void xfs_ilock_demote(xfs_inode_t *, uint);
-void xfs_iflock(xfs_inode_t *);
-int xfs_iflock_nowait(xfs_inode_t *);
-uint xfs_ilock_map_shared(xfs_inode_t *);
-void xfs_iunlock_map_shared(xfs_inode_t *, uint);
-void xfs_ifunlock(xfs_inode_t *);
-void xfs_ireclaim(xfs_inode_t *);
-int xfs_finish_reclaim(xfs_inode_t *, int, int);
-int xfs_finish_reclaim_all(struct xfs_mount *, int);
-
-/*
- * xfs_inode.c prototypes.
- */
-int xfs_inotobp(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
- xfs_dinode_t **, struct xfs_buf **, int *);
-int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
- xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **,
- xfs_daddr_t);
-int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
- xfs_inode_t **, xfs_daddr_t);
-int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
-int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, nlink_t,
- xfs_dev_t, struct cred *, xfs_prid_t, int,
- struct xfs_buf **, boolean_t *, xfs_inode_t **);
-void xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *, int,
- xfs_arch_t);
-int xfs_ifree(struct xfs_trans *, xfs_inode_t *);
-int xfs_atruncate_start(xfs_inode_t *);
-void xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
-int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
- xfs_fsize_t, int, int);
-int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
-int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
-void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
- xfs_fsize_t, int);
-
-void xfs_idestroy_fork(xfs_inode_t *, int);
-void xfs_idestroy(xfs_inode_t *);
-void xfs_idata_realloc(xfs_inode_t *, int, int);
-void xfs_iextract(xfs_inode_t *);
-void xfs_iext_realloc(xfs_inode_t *, int, int);
-void xfs_iroot_realloc(xfs_inode_t *, int, int);
-void xfs_ipin(xfs_inode_t *);
-void xfs_iunpin(xfs_inode_t *);
-int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
-int xfs_iflush(xfs_inode_t *, uint);
-int xfs_iflush_all(struct xfs_mount *, int);
-int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
-uint xfs_iroundup(uint);
-void xfs_ichgtime(xfs_inode_t *, int);
-xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
-void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
-
-#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
-
-#ifdef DEBUG
-void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
-#else /* DEBUG */
-#define xfs_isize_check(mp, ip, isize)
-#endif /* DEBUG */
-
-#if defined(DEBUG)
-void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
-#else
-#define xfs_inobp_check(mp, bp)
-#endif /* DEBUG */
-
-extern struct kmem_zone *xfs_chashlist_zone;
-extern struct kmem_zone *xfs_ifork_zone;
-extern struct kmem_zone *xfs_inode_zone;
-extern struct kmem_zone *xfs_ili_zone;
-extern struct vnodeops xfs_vnodeops;
-
-#ifdef XFS_ILOCK_TRACE
-#define XFS_ILOCK_KTRACE_SIZE 32
-void xfs_ilock_trace(xfs_inode_t *ip, int lock, unsigned int lockflags,
- inst_t *ra);
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif /* __XFS_INODE_H__ */
+/* Convert from vfs inode to xfs inode */
+static inline struct xfs_inode *XFS_I(struct inode *inode)
+{
+ return container_of(inode, struct xfs_inode, i_vnode);
+}
+
+/* convert from xfs inode to vfs inode */
+static inline struct inode *VFS_I(struct xfs_inode *ip)
+{
+ return &ip->i_vnode;
+}
+
+/* We only have i_size in the xfs inode in userspace */
+static inline loff_t i_size_read(struct inode *inode)
+{
+ return XFS_I(inode)->i_size;
+}
+
+/*
+ * wrappers around the mode checks to simplify code
+ */
+static inline bool XFS_ISREG(struct xfs_inode *ip)
+{
+ return S_ISREG(VFS_I(ip)->i_mode);
+}
+
+static inline bool XFS_ISDIR(struct xfs_inode *ip)
+{
+ return S_ISDIR(VFS_I(ip)->i_mode);
+}
+
+/*
+ * For regular files we only update the on-disk filesize when actually
+ * writing data back to disk. Until then only the copy in the VFS inode
+ * is uptodate.
+ */
+static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
+{
+ if (XFS_ISREG(ip))
+ return ip->i_size;
+ return ip->i_d.di_size;
+}
+#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+
+/* inode link counts */
+static inline void set_nlink(struct inode *inode, uint32_t nlink)
+{
+ inode->i_nlink = nlink;
+}
+static inline void inc_nlink(struct inode *inode)
+{
+ inode->i_nlink++;
+}
+
+/*
+ * Project quota id helpers (previously projid was 16bit only and using two
+ * 16bit values to hold new 32bit projid was chosen to retain compatibility with
+ * "old" filesystems).
+ *
+ * Copied here from xfs_inode.h because it has to be defined after the struct
+ * xfs_inode...
+ */
+static inline prid_t
+xfs_get_projid(struct xfs_icdinode *id)
+{
+ return (prid_t)id->di_projid_hi << 16 | id->di_projid_lo;
+}
+
+static inline void
+xfs_set_projid(struct xfs_icdinode *id, prid_t projid)
+{
+ id->di_projid_hi = (uint16_t) (projid >> 16);
+ id->di_projid_lo = (uint16_t) (projid & 0xffff);
+}
+
+static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
+{
+ return ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
+}
+
+typedef struct cred {
+ uid_t cr_uid;
+ gid_t cr_gid;
+} cred_t;
+
+extern int libxfs_inode_alloc (struct xfs_trans **, struct xfs_inode *,
+ mode_t, nlink_t, xfs_dev_t, struct cred *,
+ struct fsxattr *, struct xfs_inode **);
+extern void libxfs_trans_inode_alloc_buf (struct xfs_trans *,
+ struct xfs_buf *);
+
+extern void libxfs_trans_ichgtime(struct xfs_trans *,
+ struct xfs_inode *, int);
+extern int libxfs_iflush_int (struct xfs_inode *, struct xfs_buf *);
+
+/* Inode Cache Interfaces */
+extern bool libxfs_inode_verify_forks(struct xfs_inode *ip);
+extern int libxfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
+ uint, struct xfs_inode **,
+ struct xfs_ifork_ops *);
+extern void libxfs_irele(struct xfs_inode *ip);
+
+#endif /* __XFS_INODE_H__ */
projects / thirdparty / xfsprogs-dev.git / blobdiff