347d1c0195
Biggest bit is duplicating the dinode structure so we have one annotated for native endianess and one for disk endianess. The other significant change is that xfs_xlate_dinode_core is split into one helper per direction to allow for proper annotations, everything else is trivial. As a sidenode splitting out the incore dinode means we can move it into xfs_inode.h in a later patch and severely improving on the include hell in xfs. SGI-PV: 968563 SGI-Modid: xfs-linux-melb:xfs-kern:29476a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
644 lines
22 KiB
C
644 lines
22 KiB
C
/*
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* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __XFS_INODE_H__
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#define __XFS_INODE_H__
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struct xfs_dinode;
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struct xfs_dinode_core;
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/*
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* Fork identifiers.
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*/
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#define XFS_DATA_FORK 0
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#define XFS_ATTR_FORK 1
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/*
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* The following xfs_ext_irec_t struct introduces a second (top) level
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* to the in-core extent allocation scheme. These structs are allocated
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* in a contiguous block, creating an indirection array where each entry
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* (irec) contains a pointer to a buffer of in-core extent records which
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* it manages. Each extent buffer is 4k in size, since 4k is the system
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* page size on Linux i386 and systems with larger page sizes don't seem
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* to gain much, if anything, by using their native page size as the
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* extent buffer size. Also, using 4k extent buffers everywhere provides
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* a consistent interface for CXFS across different platforms.
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*
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* There is currently no limit on the number of irec's (extent lists)
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* allowed, so heavily fragmented files may require an indirection array
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* which spans multiple system pages of memory. The number of extents
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* which would require this amount of contiguous memory is very large
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* and should not cause problems in the foreseeable future. However,
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* if the memory needed for the contiguous array ever becomes a problem,
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* it is possible that a third level of indirection may be required.
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*/
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typedef struct xfs_ext_irec {
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xfs_bmbt_rec_host_t *er_extbuf; /* block of extent records */
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xfs_extnum_t er_extoff; /* extent offset in file */
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xfs_extnum_t er_extcount; /* number of extents in page/block */
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} xfs_ext_irec_t;
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/*
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* File incore extent information, present for each of data & attr forks.
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*/
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#define XFS_IEXT_BUFSZ 4096
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#define XFS_LINEAR_EXTS (XFS_IEXT_BUFSZ / (uint)sizeof(xfs_bmbt_rec_t))
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#define XFS_INLINE_EXTS 2
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#define XFS_INLINE_DATA 32
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typedef struct xfs_ifork {
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int if_bytes; /* bytes in if_u1 */
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int if_real_bytes; /* bytes allocated in if_u1 */
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xfs_bmbt_block_t *if_broot; /* file's incore btree root */
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short if_broot_bytes; /* bytes allocated for root */
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unsigned char if_flags; /* per-fork flags */
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unsigned char if_ext_max; /* max # of extent records */
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xfs_extnum_t if_lastex; /* last if_extents used */
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union {
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xfs_bmbt_rec_host_t *if_extents;/* linear map file exts */
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xfs_ext_irec_t *if_ext_irec; /* irec map file exts */
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char *if_data; /* inline file data */
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} if_u1;
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union {
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xfs_bmbt_rec_host_t if_inline_ext[XFS_INLINE_EXTS];
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/* very small file extents */
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char if_inline_data[XFS_INLINE_DATA];
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/* very small file data */
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xfs_dev_t if_rdev; /* dev number if special */
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uuid_t if_uuid; /* mount point value */
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} if_u2;
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} xfs_ifork_t;
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/*
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* Flags for xfs_ichgtime().
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*/
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#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
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#define XFS_ICHGTIME_ACC 0x2 /* data fork access timestamp */
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#define XFS_ICHGTIME_CHG 0x4 /* inode field change timestamp */
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/*
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* Per-fork incore inode flags.
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*/
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#define XFS_IFINLINE 0x01 /* Inline data is read in */
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#define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
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#define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
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#define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
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/*
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* Flags for xfs_itobp(), xfs_imap() and xfs_dilocate().
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*/
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#define XFS_IMAP_LOOKUP 0x1
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#define XFS_IMAP_BULKSTAT 0x2
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#ifdef __KERNEL__
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struct bhv_desc;
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struct bhv_vnode;
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struct cred;
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struct ktrace;
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struct xfs_buf;
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struct xfs_bmap_free;
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struct xfs_bmbt_irec;
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struct xfs_bmbt_block;
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struct xfs_inode;
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struct xfs_inode_log_item;
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struct xfs_mount;
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struct xfs_trans;
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struct xfs_dquot;
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#if defined(XFS_ILOCK_TRACE)
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#define XFS_ILOCK_KTRACE_SIZE 32
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extern ktrace_t *xfs_ilock_trace_buf;
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extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
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#else
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#define xfs_ilock_trace(i,n,f,ra)
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#endif
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typedef struct dm_attrs_s {
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__uint32_t da_dmevmask; /* DMIG event mask */
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__uint16_t da_dmstate; /* DMIG state info */
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__uint16_t da_pad; /* DMIG extra padding */
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} dm_attrs_t;
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typedef struct xfs_iocore {
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void *io_obj; /* pointer to container
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* inode or dcxvn structure */
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struct xfs_mount *io_mount; /* fs mount struct ptr */
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#ifdef DEBUG
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mrlock_t *io_lock; /* inode IO lock */
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mrlock_t *io_iolock; /* inode IO lock */
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#endif
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/* I/O state */
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xfs_fsize_t io_new_size; /* sz when write completes */
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/* Miscellaneous state. */
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unsigned int io_flags; /* IO related flags */
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/* DMAPI state */
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dm_attrs_t io_dmattrs;
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} xfs_iocore_t;
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#define io_dmevmask io_dmattrs.da_dmevmask
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#define io_dmstate io_dmattrs.da_dmstate
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#define XFS_IO_INODE(io) ((xfs_inode_t *) ((io)->io_obj))
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#define XFS_IO_DCXVN(io) ((dcxvn_t *) ((io)->io_obj))
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/*
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* Flags in the flags field
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*/
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#define XFS_IOCORE_RT 0x1
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/*
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* xfs_iocore prototypes
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*/
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extern void xfs_iocore_inode_init(struct xfs_inode *);
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extern void xfs_iocore_inode_reinit(struct xfs_inode *);
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/*
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* This is the type used in the xfs inode hash table.
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* An array of these is allocated for each mounted
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* file system to hash the inodes for that file system.
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*/
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typedef struct xfs_ihash {
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struct xfs_inode *ih_next;
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rwlock_t ih_lock;
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uint ih_version;
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} xfs_ihash_t;
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#define XFS_IHASH(mp,ino) ((mp)->m_ihash + (((uint)(ino)) % (mp)->m_ihsize))
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/*
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* This is the xfs inode cluster hash. This hash is used by xfs_iflush to
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* find inodes that share a cluster and can be flushed to disk at the same
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* time.
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*/
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typedef struct xfs_chashlist {
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struct xfs_chashlist *chl_next;
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struct xfs_chashlist *chl_prev;
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struct xfs_inode *chl_ip;
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xfs_daddr_t chl_blkno; /* starting block number of
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* the cluster */
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struct xfs_buf *chl_buf; /* the inode buffer */
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} xfs_chashlist_t;
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typedef struct xfs_chash {
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xfs_chashlist_t *ch_list;
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lock_t ch_lock;
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} xfs_chash_t;
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#define XFS_CHASH(mp,blk) ((mp)->m_chash + (((uint)blk) % (mp)->m_chsize))
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/*
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* This is the xfs in-core inode structure.
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* Most of the on-disk inode is embedded in the i_d field.
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*
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* The extent pointers/inline file space, however, are managed
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* separately. The memory for this information is pointed to by
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* the if_u1 unions depending on the type of the data.
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* This is used to linearize the array of extents for fast in-core
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* access. This is used until the file's number of extents
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* surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
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* are accessed through the buffer cache.
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*
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* Other state kept in the in-core inode is used for identification,
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* locking, transactional updating, etc of the inode.
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*
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* Generally, we do not want to hold the i_rlock while holding the
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* i_ilock. Hierarchy is i_iolock followed by i_rlock.
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*
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* xfs_iptr_t contains all the inode fields upto and including the
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* i_mnext and i_mprev fields, it is used as a marker in the inode
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* chain off the mount structure by xfs_sync calls.
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*/
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typedef struct xfs_ictimestamp {
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__int32_t t_sec; /* timestamp seconds */
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__int32_t t_nsec; /* timestamp nanoseconds */
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} xfs_ictimestamp_t;
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/*
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* NOTE: This structure must be kept identical to struct xfs_dinode_core
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* in xfs_dinode.h except for the endianess annotations.
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*/
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typedef struct xfs_icdinode {
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__uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
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__uint16_t di_mode; /* mode and type of file */
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__int8_t di_version; /* inode version */
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__int8_t di_format; /* format of di_c data */
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__uint16_t di_onlink; /* old number of links to file */
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__uint32_t di_uid; /* owner's user id */
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__uint32_t di_gid; /* owner's group id */
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__uint32_t di_nlink; /* number of links to file */
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__uint16_t di_projid; /* owner's project id */
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__uint8_t di_pad[8]; /* unused, zeroed space */
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__uint16_t di_flushiter; /* incremented on flush */
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xfs_ictimestamp_t di_atime; /* time last accessed */
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xfs_ictimestamp_t di_mtime; /* time last modified */
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xfs_ictimestamp_t di_ctime; /* time created/inode modified */
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xfs_fsize_t di_size; /* number of bytes in file */
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xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */
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xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
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xfs_extnum_t di_nextents; /* number of extents in data fork */
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xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
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__uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
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__int8_t di_aformat; /* format of attr fork's data */
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__uint32_t di_dmevmask; /* DMIG event mask */
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__uint16_t di_dmstate; /* DMIG state info */
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__uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
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__uint32_t di_gen; /* generation number */
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} xfs_icdinode_t;
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typedef struct {
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struct xfs_ihash *ip_hash; /* pointer to hash header */
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struct xfs_inode *ip_next; /* inode hash link forw */
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struct xfs_inode *ip_mnext; /* next inode in mount list */
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struct xfs_inode *ip_mprev; /* ptr to prev inode */
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struct xfs_inode **ip_prevp; /* ptr to prev i_next */
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struct xfs_mount *ip_mount; /* fs mount struct ptr */
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} xfs_iptr_t;
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typedef struct xfs_inode {
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/* Inode linking and identification information. */
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struct xfs_ihash *i_hash; /* pointer to hash header */
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struct xfs_inode *i_next; /* inode hash link forw */
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struct xfs_inode *i_mnext; /* next inode in mount list */
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struct xfs_inode *i_mprev; /* ptr to prev inode */
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struct xfs_inode **i_prevp; /* ptr to prev i_next */
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struct xfs_mount *i_mount; /* fs mount struct ptr */
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struct list_head i_reclaim; /* reclaim list */
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struct bhv_desc i_bhv_desc; /* inode behavior descriptor*/
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struct xfs_dquot *i_udquot; /* user dquot */
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struct xfs_dquot *i_gdquot; /* group dquot */
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/* Inode location stuff */
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xfs_ino_t i_ino; /* inode number (agno/agino)*/
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xfs_daddr_t i_blkno; /* blkno of inode buffer */
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ushort i_len; /* len of inode buffer */
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ushort i_boffset; /* off of inode in buffer */
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/* Extent information. */
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xfs_ifork_t *i_afp; /* attribute fork pointer */
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xfs_ifork_t i_df; /* data fork */
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/* Transaction and locking information. */
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struct xfs_trans *i_transp; /* ptr to owning transaction*/
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struct xfs_inode_log_item *i_itemp; /* logging information */
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mrlock_t i_lock; /* inode lock */
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mrlock_t i_iolock; /* inode IO lock */
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sema_t i_flock; /* inode flush lock */
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atomic_t i_pincount; /* inode pin count */
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wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
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spinlock_t i_flags_lock; /* inode i_flags lock */
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#ifdef HAVE_REFCACHE
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struct xfs_inode **i_refcache; /* ptr to entry in ref cache */
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struct xfs_inode *i_release; /* inode to unref */
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#endif
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/* I/O state */
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xfs_iocore_t i_iocore; /* I/O core */
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/* Miscellaneous state. */
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unsigned short i_flags; /* see defined flags below */
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unsigned char i_update_core; /* timestamps/size is dirty */
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unsigned char i_update_size; /* di_size field is dirty */
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unsigned int i_gen; /* generation count */
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unsigned int i_delayed_blks; /* count of delay alloc blks */
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xfs_icdinode_t i_d; /* most of ondisk inode */
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xfs_chashlist_t *i_chash; /* cluster hash list header */
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struct xfs_inode *i_cnext; /* cluster hash link forward */
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struct xfs_inode *i_cprev; /* cluster hash link backward */
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xfs_fsize_t i_size; /* in-memory size */
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/* Trace buffers per inode. */
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#ifdef XFS_BMAP_TRACE
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struct ktrace *i_xtrace; /* inode extent list trace */
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#endif
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#ifdef XFS_BMBT_TRACE
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struct ktrace *i_btrace; /* inode bmap btree trace */
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#endif
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#ifdef XFS_RW_TRACE
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struct ktrace *i_rwtrace; /* inode read/write trace */
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#endif
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#ifdef XFS_ILOCK_TRACE
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struct ktrace *i_lock_trace; /* inode lock/unlock trace */
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#endif
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#ifdef XFS_DIR2_TRACE
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struct ktrace *i_dir_trace; /* inode directory trace */
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#endif
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} xfs_inode_t;
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#define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
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(ip)->i_size : (ip)->i_d.di_size;
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/*
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* i_flags helper functions
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*/
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static inline void
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__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
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{
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ip->i_flags |= flags;
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}
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static inline void
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xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
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{
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spin_lock(&ip->i_flags_lock);
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__xfs_iflags_set(ip, flags);
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spin_unlock(&ip->i_flags_lock);
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}
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static inline void
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xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
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{
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spin_lock(&ip->i_flags_lock);
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ip->i_flags &= ~flags;
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spin_unlock(&ip->i_flags_lock);
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}
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static inline int
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__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
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{
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return (ip->i_flags & flags);
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}
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static inline int
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xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
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{
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int ret;
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spin_lock(&ip->i_flags_lock);
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ret = __xfs_iflags_test(ip, flags);
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spin_unlock(&ip->i_flags_lock);
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return ret;
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}
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#endif /* __KERNEL__ */
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/*
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* Fork handling.
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*/
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#define XFS_IFORK_PTR(ip,w) \
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((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
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#define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d)
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#define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
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#define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
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#define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
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#define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w)
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#define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n)
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#define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w)
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#define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
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#ifdef __KERNEL__
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/*
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* In-core inode flags.
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*/
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#define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
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#define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
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#define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
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#define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
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#define XFS_ISTALE 0x0010 /* inode has been staled */
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#define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
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#define XFS_INEW 0x0040
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#define XFS_IFILESTREAM 0x0080 /* inode is in a filestream directory */
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/*
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* Flags for inode locking.
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* Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
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* 1<<16 - 1<<32-1 -- lockdep annotation (integers)
|
|
*/
|
|
#define XFS_IOLOCK_EXCL (1<<0)
|
|
#define XFS_IOLOCK_SHARED (1<<1)
|
|
#define XFS_ILOCK_EXCL (1<<2)
|
|
#define XFS_ILOCK_SHARED (1<<3)
|
|
#define XFS_IUNLOCK_NONOTIFY (1<<4)
|
|
/* #define XFS_IOLOCK_NESTED (1<<5) */
|
|
#define XFS_EXTENT_TOKEN_RD (1<<6)
|
|
#define XFS_SIZE_TOKEN_RD (1<<7)
|
|
#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
|
|
#define XFS_WILLLEND (1<<8) /* 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)
|
|
/* TODO:XFS_SIZE_TOKEN_WANT (1<<9) */
|
|
|
|
#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 lockdep annotations.
|
|
*
|
|
* XFS_I[O]LOCK_PARENT - for operations that require locking two inodes
|
|
* (ie directory operations that require locking a directory inode and
|
|
* an entry inode). The first inode gets locked with this flag so it
|
|
* gets a lockdep subclass of 1 and the second lock will have a lockdep
|
|
* subclass of 0.
|
|
*
|
|
* XFS_LOCK_INUMORDER - for locking several inodes at the some time
|
|
* with xfs_lock_inodes(). This flag is used as the starting subclass
|
|
* and each subsequent lock acquired will increment the subclass by one.
|
|
* So the first lock acquired will have a lockdep subclass of 2, the
|
|
* second lock will have a lockdep subclass of 3, and so on. It is
|
|
* the responsibility of the class builder to shift this to the correct
|
|
* portion of the lock_mode lockdep mask.
|
|
*/
|
|
#define XFS_LOCK_PARENT 1
|
|
#define XFS_LOCK_INUMORDER 2
|
|
|
|
#define XFS_IOLOCK_SHIFT 16
|
|
#define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
|
|
|
|
#define XFS_ILOCK_SHIFT 24
|
|
#define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
|
|
|
|
#define XFS_IOLOCK_DEP_MASK 0x00ff0000
|
|
#define XFS_ILOCK_DEP_MASK 0xff000000
|
|
#define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
|
|
|
|
#define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
|
|
#define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
|
|
|
|
/*
|
|
* 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_itruncate_start().
|
|
*/
|
|
#define XFS_ITRUNC_DEFINITE 0x1
|
|
#define XFS_ITRUNC_MAYBE 0x2
|
|
|
|
#define XFS_ITOV(ip) BHV_TO_VNODE(XFS_ITOBHV(ip))
|
|
#define XFS_ITOV_NULL(ip) BHV_TO_VNODE_NULL(XFS_ITOBHV(ip))
|
|
#define XFS_ITOBHV(ip) ((struct bhv_desc *)(&((ip)->i_bhv_desc)))
|
|
#define XFS_BHVTOI(bhvp) ((xfs_inode_t *)((char *)(bhvp) - \
|
|
(char *)&(((xfs_inode_t *)0)->i_bhv_desc)))
|
|
#define BHV_IS_XFS(bdp) (BHV_OPS(bdp) == &xfs_vnodeops)
|
|
|
|
/*
|
|
* For multiple groups support: if S_ISGID bit is set in the parent
|
|
* directory, group of new file is set to that of the parent, and
|
|
* new subdirectory gets S_ISGID bit from parent.
|
|
*/
|
|
#define XFS_INHERIT_GID(pip, vfsp) \
|
|
(((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & S_ISGID))
|
|
|
|
/*
|
|
* Flags for xfs_iget()
|
|
*/
|
|
#define XFS_IGET_CREATE 0x1
|
|
#define XFS_IGET_BULKSTAT 0x2
|
|
|
|
/*
|
|
* 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 bhv_vnode *);
|
|
int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
|
|
uint, 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_itobp(struct xfs_mount *, struct xfs_trans *,
|
|
xfs_inode_t *, struct xfs_dinode **, struct xfs_buf **,
|
|
xfs_daddr_t, uint);
|
|
int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
|
|
xfs_inode_t **, xfs_daddr_t, uint);
|
|
int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
|
|
int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
|
|
xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t,
|
|
int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
|
|
void xfs_dinode_from_disk(struct xfs_icdinode *,
|
|
struct xfs_dinode_core *);
|
|
void xfs_dinode_to_disk(struct xfs_dinode_core *,
|
|
struct xfs_icdinode *);
|
|
|
|
uint xfs_ip2xflags(struct xfs_inode *);
|
|
uint xfs_dic2xflags(struct xfs_dinode_core *);
|
|
int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
|
|
struct xfs_bmap_free *);
|
|
int 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);
|
|
void xfs_iflush_all(struct xfs_mount *);
|
|
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);
|
|
|
|
xfs_inode_t *xfs_vtoi(struct bhv_vnode *vp);
|
|
|
|
void xfs_synchronize_atime(xfs_inode_t *);
|
|
|
|
xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
|
|
void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
|
|
xfs_bmbt_irec_t *);
|
|
void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
|
|
void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
|
|
void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
|
|
void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
|
|
void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
|
|
void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
|
|
void xfs_iext_realloc_direct(xfs_ifork_t *, int);
|
|
void xfs_iext_realloc_indirect(xfs_ifork_t *, int);
|
|
void xfs_iext_indirect_to_direct(xfs_ifork_t *);
|
|
void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
|
|
void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
|
|
void xfs_iext_destroy(xfs_ifork_t *);
|
|
xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
|
|
xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
|
|
xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
|
|
void xfs_iext_irec_init(xfs_ifork_t *);
|
|
xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
|
|
void xfs_iext_irec_remove(xfs_ifork_t *, int);
|
|
void xfs_iext_irec_compact(xfs_ifork_t *);
|
|
void xfs_iext_irec_compact_pages(xfs_ifork_t *);
|
|
void xfs_iext_irec_compact_full(xfs_ifork_t *);
|
|
void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
|
|
|
|
#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;
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __XFS_INODE_H__ */
|