1/* 2 * Copyright (c) 2000,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18#include "xfs.h" 19#include "xfs_fs.h" 20#include "xfs_types.h" 21#include "xfs_log.h" 22#include "xfs_inum.h" 23#include "xfs_trans.h" 24#include "xfs_sb.h" 25#include "xfs_dmapi.h" 26#include "xfs_mount.h" 27#include "xfs_trans_priv.h" 28#include "xfs_extfree_item.h" 29 30/* 31 * This routine is called to allocate an "extent free intention" 32 * log item that will hold nextents worth of extents. The 33 * caller must use all nextents extents, because we are not 34 * flexible about this at all. 35 */ 36xfs_efi_log_item_t * 37xfs_trans_get_efi(xfs_trans_t *tp, 38 uint nextents) 39{ 40 xfs_efi_log_item_t *efip; 41 42 ASSERT(tp != NULL); 43 ASSERT(nextents > 0); 44 45 efip = xfs_efi_init(tp->t_mountp, nextents); 46 ASSERT(efip != NULL); 47 48 /* 49 * Get a log_item_desc to point at the new item. 50 */ 51 (void) xfs_trans_add_item(tp, (xfs_log_item_t*)efip); 52 53 return (efip); 54} 55 56/* 57 * This routine is called to indicate that the described 58 * extent is to be logged as needing to be freed. It should 59 * be called once for each extent to be freed. 60 */ 61void 62xfs_trans_log_efi_extent(xfs_trans_t *tp, 63 xfs_efi_log_item_t *efip, 64 xfs_fsblock_t start_block, 65 xfs_extlen_t ext_len) 66{ 67 xfs_log_item_desc_t *lidp; 68 uint next_extent; 69 xfs_extent_t *extp; 70 71 lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efip); 72 ASSERT(lidp != NULL); 73 74 tp->t_flags |= XFS_TRANS_DIRTY; 75 lidp->lid_flags |= XFS_LID_DIRTY; 76 77 next_extent = efip->efi_next_extent; 78 ASSERT(next_extent < efip->efi_format.efi_nextents); 79 extp = &(efip->efi_format.efi_extents[next_extent]); 80 extp->ext_start = start_block; 81 extp->ext_len = ext_len; 82 efip->efi_next_extent++; 83} 84 85 86/* 87 * This routine is called to allocate an "extent free done" 88 * log item that will hold nextents worth of extents. The 89 * caller must use all nextents extents, because we are not 90 * flexible about this at all. 91 */ 92xfs_efd_log_item_t * 93xfs_trans_get_efd(xfs_trans_t *tp, 94 xfs_efi_log_item_t *efip, 95 uint nextents) 96{ 97 xfs_efd_log_item_t *efdp; 98 99 ASSERT(tp != NULL); 100 ASSERT(nextents > 0); 101 102 efdp = xfs_efd_init(tp->t_mountp, efip, nextents); 103 ASSERT(efdp != NULL); 104 105 /* 106 * Get a log_item_desc to point at the new item. 107 */ 108 (void) xfs_trans_add_item(tp, (xfs_log_item_t*)efdp); 109 110 return (efdp); 111} 112 113/* 114 * This routine is called to indicate that the described 115 * extent is to be logged as having been freed. It should 116 * be called once for each extent freed. 117 */ 118void 119xfs_trans_log_efd_extent(xfs_trans_t *tp, 120 xfs_efd_log_item_t *efdp, 121 xfs_fsblock_t start_block, 122 xfs_extlen_t ext_len) 123{ 124 xfs_log_item_desc_t *lidp; 125 uint next_extent; 126 xfs_extent_t *extp; 127 128 lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efdp); 129 ASSERT(lidp != NULL); 130 131 tp->t_flags |= XFS_TRANS_DIRTY; 132 lidp->lid_flags |= XFS_LID_DIRTY; 133 134 next_extent = efdp->efd_next_extent; 135 ASSERT(next_extent < efdp->efd_format.efd_nextents); 136 extp = &(efdp->efd_format.efd_extents[next_extent]); 137 extp->ext_start = start_block; 138 extp->ext_len = ext_len; 139 efdp->efd_next_extent++; 140} 141