Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/fs/nandfs/nandfs_subr.h
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1 /*- 2 * Copyright (c) 2010-2012 Semihalf 3 * Copyright (c) 2008, 2009 Reinoud Zandijk 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * From: NetBSD: nilfs_subr.h,v 1.1 2009/07/18 16:31:42 reinoud 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _FS_NANDFS_NANDFS_SUBR_H_ 32 #define _FS_NANDFS_NANDFS_SUBR_H_ 33 34 struct nandfs_mdt; 35 36 struct nandfs_alloc_request 37 { 38 uint64_t entrynum; 39 struct buf *bp_desc; 40 struct buf *bp_bitmap; 41 struct buf *bp_entry; 42 }; 43 44 /* Segment creation */ 45 void nandfs_wakeup_wait_sync(struct nandfs_device *, int); 46 int nandfs_segment_constructor(struct nandfsmount *, int); 47 int nandfs_sync_file(struct vnode *); 48 49 /* Basic calculators */ 50 uint64_t nandfs_get_segnum_of_block(struct nandfs_device *, nandfs_daddr_t); 51 void nandfs_get_segment_range(struct nandfs_device *, uint64_t, uint64_t *, 52 uint64_t *); 53 void nandfs_calc_mdt_consts(struct nandfs_device *, struct nandfs_mdt *, int); 54 55 /* Log reading / volume helpers */ 56 int nandfs_search_super_root(struct nandfs_device *); 57 58 /* Reading */ 59 int nandfs_dev_bread(struct nandfs_device *, nandfs_daddr_t, struct ucred *, 60 int, struct buf **); 61 int nandfs_bread(struct nandfs_node *, nandfs_lbn_t, struct ucred *, int, 62 struct buf **); 63 int nandfs_bread_meta(struct nandfs_node *, nandfs_lbn_t, struct ucred *, int, 64 struct buf **); 65 int nandfs_bdestroy(struct nandfs_node *, nandfs_daddr_t); 66 int nandfs_bcreate(struct nandfs_node *, nandfs_lbn_t, struct ucred *, int, 67 struct buf **); 68 int nandfs_bcreate_meta(struct nandfs_node *, nandfs_lbn_t, struct ucred *, 69 int, struct buf **); 70 int nandfs_bread_create(struct nandfs_node *, nandfs_lbn_t, struct ucred *, 71 int, struct buf **); 72 73 /* vtop operations */ 74 int nandfs_vtop(struct nandfs_node *, nandfs_daddr_t, nandfs_daddr_t *); 75 76 /* Node action implementators */ 77 int nandfs_vinit(struct vnode *, uint64_t); 78 int nandfs_get_node(struct nandfsmount *, uint64_t, struct nandfs_node **); 79 int nandfs_get_node_raw(struct nandfs_device *, struct nandfsmount *, uint64_t, 80 struct nandfs_inode *, struct nandfs_node **); 81 void nandfs_dispose_node(struct nandfs_node **); 82 83 void nandfs_itimes(struct vnode *); 84 int nandfs_lookup_name_in_dir(struct vnode *, const char *, int, uint64_t *, 85 int *, uint64_t *); 86 int nandfs_create_node(struct vnode *, struct vnode **, struct vattr *, 87 struct componentname *); 88 void nandfs_delete_node(struct nandfs_node *); 89 90 int nandfs_chsize(struct vnode *, u_quad_t, struct ucred *); 91 int nandfs_dir_detach(struct nandfsmount *, struct nandfs_node *, 92 struct nandfs_node *, struct componentname *); 93 int nandfs_dir_attach(struct nandfsmount *, struct nandfs_node *, 94 struct nandfs_node *, struct vattr *, struct componentname *); 95 96 int nandfs_dirty_buf(struct buf *, int); 97 int nandfs_dirty_buf_meta(struct buf *, int); 98 int nandfs_fs_full(struct nandfs_device *); 99 void nandfs_undirty_buf_fsdev(struct nandfs_device *, struct buf *); 100 void nandfs_undirty_buf(struct buf *); 101 102 void nandfs_clear_buf(struct buf *); 103 void nandfs_buf_set(struct buf *, uint32_t); 104 void nandfs_buf_clear(struct buf *, uint32_t); 105 int nandfs_buf_check(struct buf *, uint32_t); 106 107 int nandfs_find_free_entry(struct nandfs_mdt *, struct nandfs_node *, 108 struct nandfs_alloc_request *); 109 int nandfs_find_entry(struct nandfs_mdt *, struct nandfs_node *, 110 struct nandfs_alloc_request *); 111 int nandfs_alloc_entry(struct nandfs_mdt *, struct nandfs_alloc_request *); 112 void nandfs_abort_entry(struct nandfs_alloc_request *); 113 int nandfs_free_entry(struct nandfs_mdt *, struct nandfs_alloc_request *); 114 int nandfs_get_entry_block(struct nandfs_mdt *, struct nandfs_node *, 115 struct nandfs_alloc_request *, uint32_t *, int); 116 117 /* Inode management. */ 118 int nandfs_node_create(struct nandfsmount *, struct nandfs_node **, uint16_t); 119 int nandfs_node_destroy(struct nandfs_node *); 120 int nandfs_node_update(struct nandfs_node *); 121 int nandfs_get_node_entry(struct nandfsmount *, struct nandfs_inode **, 122 uint64_t, struct buf **); 123 void nandfs_mdt_trans_blk(struct nandfs_mdt *, uint64_t, uint64_t *, 124 uint64_t *, nandfs_lbn_t *, uint32_t *); 125 126 /* vblock management */ 127 void nandfs_mdt_trans(struct nandfs_mdt *, uint64_t, nandfs_lbn_t *, uint32_t *); 128 int nandfs_vblock_alloc(struct nandfs_device *, nandfs_daddr_t *); 129 int nandfs_vblock_end(struct nandfs_device *, nandfs_daddr_t); 130 int nandfs_vblock_assign(struct nandfs_device *, nandfs_daddr_t, 131 nandfs_lbn_t); 132 int nandfs_vblock_free(struct nandfs_device *, nandfs_daddr_t); 133 134 /* Checkpoint management */ 135 int nandfs_get_checkpoint(struct nandfs_device *, struct nandfs_node *, 136 uint64_t); 137 int nandfs_set_checkpoint(struct nandfs_device *, struct nandfs_node *, 138 uint64_t, struct nandfs_inode *, uint64_t); 139 140 /* Segment management */ 141 int nandfs_alloc_segment(struct nandfs_device *, uint64_t *); 142 int nandfs_update_segment(struct nandfs_device *, uint64_t, uint32_t); 143 int nandfs_free_segment(struct nandfs_device *, uint64_t); 144 int nandfs_clear_segment(struct nandfs_device *, uint64_t); 145 int nandfs_touch_segment(struct nandfs_device *, uint64_t); 146 int nandfs_markgc_segment(struct nandfs_device *, uint64_t); 147 148 int nandfs_bmap_insert_block(struct nandfs_node *, nandfs_lbn_t, struct buf *); 149 int nandfs_bmap_update_block(struct nandfs_node *, struct buf *, nandfs_lbn_t); 150 int nandfs_bmap_update_dat(struct nandfs_node *, nandfs_daddr_t, struct buf *); 151 int nandfs_bmap_dirty_blocks(struct nandfs_node *, struct buf *, int); 152 int nandfs_bmap_truncate_mapping(struct nandfs_node *, nandfs_lbn_t, 153 nandfs_lbn_t); 154 int nandfs_bmap_lookup(struct nandfs_node *, nandfs_lbn_t, nandfs_daddr_t *); 155 156 /* dirent */ 157 int nandfs_add_dirent(struct vnode *, uint64_t, char *, long, uint8_t); 158 int nandfs_remove_dirent(struct vnode *, struct nandfs_node *, 159 struct componentname *); 160 int nandfs_update_dirent(struct vnode *, struct nandfs_node *, 161 struct nandfs_node *); 162 int nandfs_init_dir(struct vnode *, uint64_t, uint64_t); 163 int nandfs_update_parent_dir(struct vnode *, uint64_t); 164 165 void nandfs_vblk_set(struct buf *, nandfs_daddr_t); 166 nandfs_daddr_t nandfs_vblk_get(struct buf *); 167 168 void nandfs_inode_init(struct nandfs_inode *, uint16_t); 169 void nandfs_inode_destroy(struct nandfs_inode *); 170 171 /* ioctl */ 172 int nandfs_get_seg_stat(struct nandfs_device *, struct nandfs_seg_stat *); 173 int nandfs_chng_cpmode(struct nandfs_node *, struct nandfs_cpmode *); 174 int nandfs_get_cpinfo_ioctl(struct nandfs_node *, struct nandfs_argv *); 175 int nandfs_delete_cp(struct nandfs_node *, uint64_t start, uint64_t); 176 int nandfs_make_snap(struct nandfs_device *, uint64_t *); 177 int nandfs_delete_snap(struct nandfs_device *, uint64_t); 178 int nandfs_get_cpstat(struct nandfs_node *, struct nandfs_cpstat *); 179 int nandfs_get_segment_info_ioctl(struct nandfs_device *, struct nandfs_argv *); 180 int nandfs_get_dat_vinfo_ioctl(struct nandfs_device *, struct nandfs_argv *); 181 int nandfs_get_dat_bdescs_ioctl(struct nandfs_device *, struct nandfs_argv *); 182 int nandfs_get_fsinfo(struct nandfsmount *, struct nandfs_fsinfo *); 183 184 int nandfs_get_cpinfo(struct nandfs_node *, uint64_t, uint16_t, 185 struct nandfs_cpinfo *, uint32_t, uint32_t *); 186 187 nandfs_lbn_t nandfs_get_maxfilesize(struct nandfs_device *); 188 189 int nandfs_write_superblock(struct nandfs_device *); 190 191 extern int nandfs_sync_interval; 192 extern int nandfs_max_dirty_segs; 193 extern int nandfs_cps_between_sblocks; 194 195 struct buf *nandfs_geteblk(int, int); 196 197 void nandfs_dirty_bufs_increment(struct nandfs_device *); 198 void nandfs_dirty_bufs_decrement(struct nandfs_device *); 199 200 int nandfs_start_cleaner(struct nandfs_device *); 201 int nandfs_stop_cleaner(struct nandfs_device *); 202 203 int nandfs_segsum_valid(struct nandfs_segment_summary *); 204 int nandfs_load_segsum(struct nandfs_device *, nandfs_daddr_t, 205 struct nandfs_segment_summary *); 206 int nandfs_get_segment_info(struct nandfs_device *, struct nandfs_suinfo *, 207 uint32_t, uint64_t); 208 int nandfs_get_segment_info_filter(struct nandfs_device *, 209 struct nandfs_suinfo *, uint32_t, uint64_t, uint64_t *, uint32_t, uint32_t); 210 int nandfs_get_dat_vinfo(struct nandfs_device *, struct nandfs_vinfo *, 211 uint32_t); 212 int nandfs_get_dat_bdescs(struct nandfs_device *, struct nandfs_bdesc *, 213 uint32_t); 214 215 #define NANDFS_VBLK_ASSIGNED 1 216 217 #define NANDFS_IS_INDIRECT(bp) ((bp)->b_lblkno < 0) 218 219 int nandfs_erase(struct nandfs_device *, off_t, size_t); 220 221 #define NANDFS_VOP_ISLOCKED(vp) nandfs_vop_islocked((vp)) 222 int nandfs_vop_islocked(struct vnode *vp); 223 224 nandfs_daddr_t nandfs_block_to_dblock(struct nandfs_device *, nandfs_lbn_t); 225 226 #define DEBUG_MODE 227 #if defined(DEBUG_MODE) 228 #define nandfs_error panic 229 #define nandfs_warning printf 230 #elif defined(TEST_MODE) 231 #define nandfs_error printf 232 #define nandfs_warning printf 233 #else 234 #define nandfs_error(...) 235 #define nandfs_warning(...) 236 #endif 237 238 #endif /* !_FS_NANDFS_NANDFS_SUBR_H_ */
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