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/* $NetBSD: lfs_inode.h,v 1.11 2015/09/01 06:08:37 dholland Exp $ */
/* from NetBSD: ulfs_inode.h,v 1.5 2013/06/06 00:51:50 dholland Exp */
/* from NetBSD: inode.h,v 1.64 2012/11/19 00:36:21 jakllsch Exp */
/*
* Copyright (c) 1982, 1989, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)inode.h 8.9 (Berkeley) 5/14/95
*/
#ifndef _UFS_LFS_LFS_INODE_H_
#define _UFS_LFS_LFS_INODE_H_
/*
* Some of the userlevel code (fsck, newfs, lfs_cleanerd) wants to use
* the in-memory inode structure in a faked-up kernel environment.
* This header file provides a reasonably sanitized version of the
* structures and definitions needed for that purpose.
*/
#include <miscfs/genfs/genfs_node.h>
#include <ufs/lfs/lfs.h>
/*
* Adjustable filesystem parameters
*/
#define MIN_FREE_SEGS 20
#define MIN_RESV_SEGS 15
/*
* The following constants define the usage of the quota file array in the
* ulfsmount structure and dquot array in the inode structure. The semantics
* of the elements of these arrays are defined in the routine lfs_getinoquota;
* the remainder of the quota code treats them generically and need not be
* inspected when changing the size of the array.
*/
#define ULFS_MAXQUOTAS 2
#define ULFS_USRQUOTA 0 /* element used for user quotas */
#define ULFS_GRPQUOTA 1 /* element used for group quotas */
/*
* Lookup result state (other than the result inode). This is
* currently stashed in the vnode between VOP_LOOKUP and directory
* operation VOPs, which is gross.
*
* XXX ulr_diroff is a lookup hint from the previos call of VOP_LOOKUP.
* probably it should not be here.
*/
struct ulfs_lookup_results {
int32_t ulr_count; /* Size of free slot in directory. */
doff_t ulr_endoff; /* End of useful stuff in directory. */
doff_t ulr_diroff; /* Offset in dir, where we found last entry. */
doff_t ulr_offset; /* Offset of free space in directory. */
u_int32_t ulr_reclen; /* Size of found directory entry. */
};
/* notyet XXX */
#define ULFS_CHECK_CRAPCOUNTER(dp) ((void)(dp)->i_crapcounter)
/*
* Per-filesystem inode extensions.
*/
struct lfs_inode_ext;
/*
* The inode is used to describe each active (or recently active) file in the
* ULFS filesystem. It is composed of two types of information. The first part
* is the information that is needed only while the file is active (such as
* the identity of the file and linkage to speed its lookup). The second part
* is the permanent meta-data associated with the file which is read in
* from the permanent dinode from long term storage when the file becomes
* active, and is put back when the file is no longer being used.
*/
struct inode {
struct genfs_node i_gnode;
LIST_ENTRY(inode) i_hash;/* Hash chain. */
TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list. */
struct vnode *i_vnode; /* Vnode associated with this inode. */
struct ulfsmount *i_ump; /* Mount point associated with this inode. */
struct vnode *i_devvp; /* Vnode for block I/O. */
u_int32_t i_flag; /* flags, see below */
dev_t i_dev; /* Device associated with the inode. */
ino_t i_number; /* The identity of the inode. */
struct lfs *i_lfs; /* The LFS volume we belong to. */
void *i_unused1; /* Unused. */
struct dquot *i_dquot[ULFS_MAXQUOTAS]; /* Dquot structures. */
u_quad_t i_modrev; /* Revision level for NFS lease. */
struct lockf *i_lockf;/* Head of byte-level lock list. */
/*
* Side effects; used during (and after) directory lookup.
* XXX should not be here.
*/
struct ulfs_lookup_results i_crap;
unsigned i_crapcounter; /* serial number for i_crap */
/*
* Inode extensions
*/
union {
/* Other extensions could go here... */
struct lfs_inode_ext *lfs;
} inode_ext;
/*
* Copies from the on-disk dinode itself.
*
* These fields are currently only used by LFS.
*/
u_int16_t i_mode; /* IFMT, permissions; see below. */
int16_t i_nlink; /* File link count. */
u_int64_t i_size; /* File byte count. */
u_int32_t i_flags; /* Status flags (chflags). */
int32_t i_gen; /* Generation number. */
u_int32_t i_uid; /* File owner. */
u_int32_t i_gid; /* File group. */
u_int16_t i_omode; /* Old mode, for ulfs_reclaim. */
struct dirhash *i_dirhash; /* Hashing for large directories */
/*
* The on-disk dinode itself.
*/
union lfs_dinode *i_din;
};
/* These flags are kept in i_flag. */
#define IN_ACCESS 0x0001 /* Access time update request. */
#define IN_CHANGE 0x0002 /* Inode change time update request. */
#define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */
#define IN_MODIFY 0x2000 /* Modification time update request. */
#define IN_MODIFIED 0x0008 /* Inode has been modified. */
#define IN_ACCESSED 0x0010 /* Inode has been accessed. */
/* unused 0x0020 */ /* was IN_RENAME */
#define IN_SHLOCK 0x0040 /* File has shared lock. */
#define IN_EXLOCK 0x0080 /* File has exclusive lock. */
#define IN_CLEANING 0x0100 /* LFS: file is being cleaned */
#define IN_ADIROP 0x0200 /* LFS: dirop in progress */
/* unused 0x0400 */ /* was FFS-only IN_SPACECOUNTED */
#define IN_PAGING 0x1000 /* LFS: file is on paging queue */
#define IN_CDIROP 0x4000 /* LFS: dirop completed pending i/o */
/*
* LFS inode extensions.
*/
struct lfs_inode_ext {
off_t lfs_osize; /* size of file on disk */
u_int64_t lfs_effnblocks; /* number of blocks when i/o completes */
size_t lfs_fragsize[ULFS_NDADDR]; /* size of on-disk direct blocks */
TAILQ_ENTRY(inode) lfs_dchain; /* Dirop chain. */
TAILQ_ENTRY(inode) lfs_pchain; /* Paging chain. */
#define LFSI_NO_GOP_WRITE 0x01
#define LFSI_DELETED 0x02
#define LFSI_WRAPBLOCK 0x04
#define LFSI_WRAPWAIT 0x08
#define LFSI_BMAP 0x10
u_int32_t lfs_iflags; /* Inode flags */
daddr_t lfs_hiblk; /* Highest lbn held by inode */
#ifdef _KERNEL
SPLAY_HEAD(lfs_splay, lbnentry) lfs_lbtree; /* Tree of balloc'd lbns */
int lfs_nbtree; /* Size of tree */
LIST_HEAD(, segdelta) lfs_segdhd;
#endif
int16_t lfs_odnlink; /* on-disk nlink count for cleaner */
};
#define i_lfs_osize inode_ext.lfs->lfs_osize
#define i_lfs_effnblks inode_ext.lfs->lfs_effnblocks
#define i_lfs_fragsize inode_ext.lfs->lfs_fragsize
#define i_lfs_dchain inode_ext.lfs->lfs_dchain
#define i_lfs_pchain inode_ext.lfs->lfs_pchain
#define i_lfs_iflags inode_ext.lfs->lfs_iflags
#define i_lfs_hiblk inode_ext.lfs->lfs_hiblk
#define i_lfs_lbtree inode_ext.lfs->lfs_lbtree
#define i_lfs_nbtree inode_ext.lfs->lfs_nbtree
#define i_lfs_segdhd inode_ext.lfs->lfs_segdhd
#define i_lfs_odnlink inode_ext.lfs->lfs_odnlink
/*
* "struct buf" associated definitions
*/
#ifdef _KERNEL
# define LFS_IS_MALLOC_BUF(bp) ((bp)->b_iodone == lfs_callback)
# ifdef DEBUG
# define LFS_DEBUG_COUNTLOCKED(m) do { \
if (lfs_debug_log_subsys[DLOG_LLIST]) { \
lfs_countlocked(&locked_queue_count, &locked_queue_bytes, (m)); \
cv_broadcast(&locked_queue_cv); \
} \
} while (0)
# else
# define LFS_DEBUG_COUNTLOCKED(m)
# endif
/* log for debugging writes to the Ifile */
# ifdef DEBUG
struct lfs_log_entry {
const char *op;
const char *file;
int pid;
int line;
daddr_t block;
unsigned long flags;
};
extern int lfs_lognum;
extern struct lfs_log_entry lfs_log[LFS_LOGLENGTH];
# define LFS_BWRITE_LOG(bp) lfs_bwrite_log((bp), __FILE__, __LINE__)
# define LFS_ENTER_LOG(theop, thefile, theline, lbn, theflags, thepid) do {\
int _s; \
\
mutex_enter(&lfs_lock); \
_s = splbio(); \
lfs_log[lfs_lognum].op = theop; \
lfs_log[lfs_lognum].file = thefile; \
lfs_log[lfs_lognum].line = (theline); \
lfs_log[lfs_lognum].pid = (thepid); \
lfs_log[lfs_lognum].block = (lbn); \
lfs_log[lfs_lognum].flags = (theflags); \
lfs_lognum = (lfs_lognum + 1) % LFS_LOGLENGTH; \
splx(_s); \
mutex_exit(&lfs_lock); \
} while (0)
# define LFS_BCLEAN_LOG(fs, bp) do { \
if ((bp)->b_vp == (fs)->lfs_ivnode) \
LFS_ENTER_LOG("clear", __FILE__, __LINE__, \
bp->b_lblkno, bp->b_flags, curproc->p_pid);\
} while (0)
/* Must match list in lfs_vfsops.c ! */
# define DLOG_RF 0 /* roll forward */
# define DLOG_ALLOC 1 /* inode alloc */
# define DLOG_AVAIL 2 /* lfs_{,r,f}avail */
# define DLOG_FLUSH 3 /* flush */
# define DLOG_LLIST 4 /* locked list accounting */
# define DLOG_WVNODE 5 /* vflush/writevnodes verbose */
# define DLOG_VNODE 6 /* vflush/writevnodes */
# define DLOG_SEG 7 /* segwrite */
# define DLOG_SU 8 /* seguse accounting */
# define DLOG_CLEAN 9 /* cleaner routines */
# define DLOG_MOUNT 10 /* mount/unmount */
# define DLOG_PAGE 11 /* putpages/gop_write */
# define DLOG_DIROP 12 /* dirop accounting */
# define DLOG_MALLOC 13 /* lfs_malloc accounting */
# define DLOG_MAX 14 /* The terminator */
# define DLOG(a) lfs_debug_log a
# else /* ! DEBUG */
# define LFS_BCLEAN_LOG(fs, bp)
# define LFS_BWRITE_LOG(bp) VOP_BWRITE((bp)->b_vp, (bp))
# define DLOG(a)
# endif /* ! DEBUG */
#else /* ! _KERNEL */
# define LFS_BWRITE_LOG(bp) VOP_BWRITE((bp))
#endif /* _KERNEL */
#endif /* _UFS_LFS_LFS_INODE_H_ */
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