239 lines
9.7 KiB
C
239 lines
9.7 KiB
C
/*-
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* Copyright (c) 2010-2012 Semihalf
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* Copyright (c) 2008, 2009 Reinoud Zandijk
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* From: NetBSD: nilfs_subr.h,v 1.1 2009/07/18 16:31:42 reinoud
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*
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* $FreeBSD$
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*/
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#ifndef _FS_NANDFS_NANDFS_SUBR_H_
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#define _FS_NANDFS_NANDFS_SUBR_H_
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struct nandfs_mdt;
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struct nandfs_alloc_request
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{
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uint64_t entrynum;
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struct buf *bp_desc;
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struct buf *bp_bitmap;
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struct buf *bp_entry;
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};
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/* Segment creation */
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void nandfs_wakeup_wait_sync(struct nandfs_device *, int);
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int nandfs_segment_constructor(struct nandfsmount *, int);
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int nandfs_sync_file(struct vnode *);
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/* Basic calculators */
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uint64_t nandfs_get_segnum_of_block(struct nandfs_device *, nandfs_daddr_t);
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void nandfs_get_segment_range(struct nandfs_device *, uint64_t, uint64_t *,
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uint64_t *);
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void nandfs_calc_mdt_consts(struct nandfs_device *, struct nandfs_mdt *, int);
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/* Log reading / volume helpers */
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int nandfs_search_super_root(struct nandfs_device *);
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/* Reading */
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int nandfs_dev_bread(struct nandfs_device *, nandfs_daddr_t, struct ucred *,
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int, struct buf **);
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int nandfs_bread(struct nandfs_node *, nandfs_lbn_t, struct ucred *, int,
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struct buf **);
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int nandfs_bread_meta(struct nandfs_node *, nandfs_lbn_t, struct ucred *, int,
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struct buf **);
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int nandfs_bdestroy(struct nandfs_node *, nandfs_daddr_t);
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int nandfs_bcreate(struct nandfs_node *, nandfs_lbn_t, struct ucred *, int,
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struct buf **);
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int nandfs_bcreate_meta(struct nandfs_node *, nandfs_lbn_t, struct ucred *,
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int, struct buf **);
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int nandfs_bread_create(struct nandfs_node *, nandfs_lbn_t, struct ucred *,
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int, struct buf **);
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/* vtop operations */
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int nandfs_vtop(struct nandfs_node *, nandfs_daddr_t, nandfs_daddr_t *);
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/* Node action implementators */
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int nandfs_vinit(struct vnode *, uint64_t);
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int nandfs_get_node(struct nandfsmount *, uint64_t, struct nandfs_node **);
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int nandfs_get_node_raw(struct nandfs_device *, struct nandfsmount *, uint64_t,
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struct nandfs_inode *, struct nandfs_node **);
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void nandfs_dispose_node(struct nandfs_node **);
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void nandfs_itimes(struct vnode *);
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int nandfs_lookup_name_in_dir(struct vnode *, const char *, int, uint64_t *,
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int *, uint64_t *);
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int nandfs_create_node(struct vnode *, struct vnode **, struct vattr *,
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struct componentname *);
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void nandfs_delete_node(struct nandfs_node *);
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int nandfs_chsize(struct vnode *, u_quad_t, struct ucred *);
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int nandfs_dir_detach(struct nandfsmount *, struct nandfs_node *,
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struct nandfs_node *, struct componentname *);
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int nandfs_dir_attach(struct nandfsmount *, struct nandfs_node *,
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struct nandfs_node *, struct vattr *, struct componentname *);
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int nandfs_dirty_buf(struct buf *, int);
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int nandfs_dirty_buf_meta(struct buf *, int);
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int nandfs_fs_full(struct nandfs_device *);
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void nandfs_undirty_buf_fsdev(struct nandfs_device *, struct buf *);
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void nandfs_undirty_buf(struct buf *);
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void nandfs_clear_buf(struct buf *);
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void nandfs_buf_set(struct buf *, uint32_t);
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void nandfs_buf_clear(struct buf *, uint32_t);
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int nandfs_buf_check(struct buf *, uint32_t);
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int nandfs_find_free_entry(struct nandfs_mdt *, struct nandfs_node *,
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struct nandfs_alloc_request *);
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int nandfs_find_entry(struct nandfs_mdt *, struct nandfs_node *,
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struct nandfs_alloc_request *);
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int nandfs_alloc_entry(struct nandfs_mdt *, struct nandfs_alloc_request *);
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void nandfs_abort_entry(struct nandfs_alloc_request *);
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int nandfs_free_entry(struct nandfs_mdt *, struct nandfs_alloc_request *);
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int nandfs_get_entry_block(struct nandfs_mdt *, struct nandfs_node *,
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struct nandfs_alloc_request *, uint32_t *, int);
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/* Inode management. */
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int nandfs_node_create(struct nandfsmount *, struct nandfs_node **, uint16_t);
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int nandfs_node_destroy(struct nandfs_node *);
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int nandfs_node_update(struct nandfs_node *);
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int nandfs_get_node_entry(struct nandfsmount *, struct nandfs_inode **,
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uint64_t, struct buf **);
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void nandfs_mdt_trans_blk(struct nandfs_mdt *, uint64_t, uint64_t *,
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uint64_t *, nandfs_lbn_t *, uint32_t *);
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/* vblock management */
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void nandfs_mdt_trans(struct nandfs_mdt *, uint64_t, nandfs_lbn_t *, uint32_t *);
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int nandfs_vblock_alloc(struct nandfs_device *, nandfs_daddr_t *);
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int nandfs_vblock_end(struct nandfs_device *, nandfs_daddr_t);
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int nandfs_vblock_assign(struct nandfs_device *, nandfs_daddr_t,
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nandfs_lbn_t);
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int nandfs_vblock_free(struct nandfs_device *, nandfs_daddr_t);
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/* Checkpoint management */
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int nandfs_get_checkpoint(struct nandfs_device *, struct nandfs_node *,
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uint64_t);
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int nandfs_set_checkpoint(struct nandfs_device *, struct nandfs_node *,
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uint64_t, struct nandfs_inode *, uint64_t);
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/* Segment management */
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int nandfs_alloc_segment(struct nandfs_device *, uint64_t *);
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int nandfs_update_segment(struct nandfs_device *, uint64_t, uint32_t);
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int nandfs_free_segment(struct nandfs_device *, uint64_t);
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int nandfs_clear_segment(struct nandfs_device *, uint64_t);
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int nandfs_touch_segment(struct nandfs_device *, uint64_t);
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int nandfs_markgc_segment(struct nandfs_device *, uint64_t);
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int nandfs_bmap_insert_block(struct nandfs_node *, nandfs_lbn_t, struct buf *);
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int nandfs_bmap_update_block(struct nandfs_node *, struct buf *, nandfs_lbn_t);
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int nandfs_bmap_update_dat(struct nandfs_node *, nandfs_daddr_t, struct buf *);
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int nandfs_bmap_dirty_blocks(struct nandfs_node *, struct buf *, int);
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int nandfs_bmap_truncate_mapping(struct nandfs_node *, nandfs_lbn_t,
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nandfs_lbn_t);
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int nandfs_bmap_lookup(struct nandfs_node *, nandfs_lbn_t, nandfs_daddr_t *);
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/* dirent */
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int nandfs_add_dirent(struct vnode *, uint64_t, char *, long, uint8_t);
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int nandfs_remove_dirent(struct vnode *, struct nandfs_node *,
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struct componentname *);
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int nandfs_update_dirent(struct vnode *, struct nandfs_node *,
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struct nandfs_node *);
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int nandfs_init_dir(struct vnode *, uint64_t, uint64_t);
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int nandfs_update_parent_dir(struct vnode *, uint64_t);
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void nandfs_vblk_set(struct buf *, nandfs_daddr_t);
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nandfs_daddr_t nandfs_vblk_get(struct buf *);
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void nandfs_inode_init(struct nandfs_inode *, uint16_t);
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void nandfs_inode_destroy(struct nandfs_inode *);
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/* ioctl */
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int nandfs_get_seg_stat(struct nandfs_device *, struct nandfs_seg_stat *);
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int nandfs_chng_cpmode(struct nandfs_node *, struct nandfs_cpmode *);
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int nandfs_get_cpinfo_ioctl(struct nandfs_node *, struct nandfs_argv *);
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int nandfs_delete_cp(struct nandfs_node *, uint64_t start, uint64_t);
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int nandfs_make_snap(struct nandfs_device *, uint64_t *);
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int nandfs_delete_snap(struct nandfs_device *, uint64_t);
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int nandfs_get_cpstat(struct nandfs_node *, struct nandfs_cpstat *);
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int nandfs_get_segment_info_ioctl(struct nandfs_device *, struct nandfs_argv *);
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int nandfs_get_dat_vinfo_ioctl(struct nandfs_device *, struct nandfs_argv *);
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int nandfs_get_dat_bdescs_ioctl(struct nandfs_device *, struct nandfs_argv *);
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int nandfs_get_fsinfo(struct nandfsmount *, struct nandfs_fsinfo *);
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int nandfs_get_cpinfo(struct nandfs_node *, uint64_t, uint16_t,
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struct nandfs_cpinfo *, uint32_t, uint32_t *);
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nandfs_lbn_t nandfs_get_maxfilesize(struct nandfs_device *);
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int nandfs_write_superblock(struct nandfs_device *);
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extern int nandfs_sync_interval;
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extern int nandfs_max_dirty_segs;
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extern int nandfs_cps_between_sblocks;
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struct buf *nandfs_geteblk(int, int);
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void nandfs_dirty_bufs_increment(struct nandfs_device *);
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void nandfs_dirty_bufs_decrement(struct nandfs_device *);
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int nandfs_start_cleaner(struct nandfs_device *);
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int nandfs_stop_cleaner(struct nandfs_device *);
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int nandfs_segsum_valid(struct nandfs_segment_summary *);
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int nandfs_load_segsum(struct nandfs_device *, nandfs_daddr_t,
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struct nandfs_segment_summary *);
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int nandfs_get_segment_info(struct nandfs_device *, struct nandfs_suinfo *,
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uint32_t, uint64_t);
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int nandfs_get_segment_info_filter(struct nandfs_device *,
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struct nandfs_suinfo *, uint32_t, uint64_t, uint64_t *, uint32_t, uint32_t);
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int nandfs_get_dat_vinfo(struct nandfs_device *, struct nandfs_vinfo *,
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uint32_t);
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int nandfs_get_dat_bdescs(struct nandfs_device *, struct nandfs_bdesc *,
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uint32_t);
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#define NANDFS_VBLK_ASSIGNED 1
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#define NANDFS_IS_INDIRECT(bp) ((bp)->b_lblkno < 0)
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int nandfs_erase(struct nandfs_device *, off_t, size_t);
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#define NANDFS_VOP_ISLOCKED(vp) nandfs_vop_islocked((vp))
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int nandfs_vop_islocked(struct vnode *vp);
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nandfs_daddr_t nandfs_block_to_dblock(struct nandfs_device *, nandfs_lbn_t);
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#define DEBUG_MODE
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#if defined(DEBUG_MODE)
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#define nandfs_error panic
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#define nandfs_warning printf
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#elif defined(TEST_MODE)
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#define nandfs_error printf
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#define nandfs_warning printf
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#else
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#define nandfs_error(...)
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#define nandfs_warning(...)
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#endif
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#endif /* !_FS_NANDFS_NANDFS_SUBR_H_ */
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