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_ag.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 xfs_trans_add_item(tp, &efip->efi_item); 52 return efip; 53} 54 55/* 56 * This routine is called to indicate that the described 57 * extent is to be logged as needing to be freed. It should 58 * be called once for each extent to be freed. 59 */ 60void 61xfs_trans_log_efi_extent(xfs_trans_t *tp, 62 xfs_efi_log_item_t *efip, 63 xfs_fsblock_t start_block, 64 xfs_extlen_t ext_len) 65{ 66 uint next_extent; 67 xfs_extent_t *extp; 68 69 tp->t_flags |= XFS_TRANS_DIRTY; 70 efip->efi_item.li_desc->lid_flags |= XFS_LID_DIRTY; 71 72 next_extent = efip->efi_next_extent; 73 ASSERT(next_extent < efip->efi_format.efi_nextents); 74 extp = &(efip->efi_format.efi_extents[next_extent]); 75 extp->ext_start = start_block; 76 extp->ext_len = ext_len; 77 efip->efi_next_extent++; 78} 79 80 81/* 82 * This routine is called to allocate an "extent free done" 83 * log item that will hold nextents worth of extents. The 84 * caller must use all nextents extents, because we are not 85 * flexible about this at all. 86 */ 87xfs_efd_log_item_t * 88xfs_trans_get_efd(xfs_trans_t *tp, 89 xfs_efi_log_item_t *efip, 90 uint nextents) 91{ 92 xfs_efd_log_item_t *efdp; 93 94 ASSERT(tp != NULL); 95 ASSERT(nextents > 0); 96 97 efdp = xfs_efd_init(tp->t_mountp, efip, nextents); 98 ASSERT(efdp != NULL); 99 100 /* 101 * Get a log_item_desc to point at the new item. 102 */ 103 xfs_trans_add_item(tp, &efdp->efd_item); 104 return efdp; 105} 106 107/* 108 * This routine is called to indicate that the described 109 * extent is to be logged as having been freed. It should 110 * be called once for each extent freed. 111 */ 112void 113xfs_trans_log_efd_extent(xfs_trans_t *tp, 114 xfs_efd_log_item_t *efdp, 115 xfs_fsblock_t start_block, 116 xfs_extlen_t ext_len) 117{ 118 uint next_extent; 119 xfs_extent_t *extp; 120 121 tp->t_flags |= XFS_TRANS_DIRTY; 122 efdp->efd_item.li_desc->lid_flags |= XFS_LID_DIRTY; 123 124 next_extent = efdp->efd_next_extent; 125 ASSERT(next_extent < efdp->efd_format.efd_nextents); 126 extp = &(efdp->efd_format.efd_extents[next_extent]); 127 extp->ext_start = start_block; 128 extp->ext_len = ext_len; 129 efdp->efd_next_extent++; 130} 131