2 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
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.
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.
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
20 #include "xfs_types.h"
23 #include "xfs_trans.h"
26 #include "xfs_dmapi.h"
27 #include "xfs_mount.h"
28 #include "xfs_trans_priv.h"
29 #include "xfs_extfree_item.h"
32 * This routine is called to allocate an "extent free intention"
33 * log item that will hold nextents worth of extents. The
34 * caller must use all nextents extents, because we are not
35 * flexible about this at all.
38 xfs_trans_get_efi(xfs_trans_t
*tp
,
41 xfs_efi_log_item_t
*efip
;
46 efip
= xfs_efi_init(tp
->t_mountp
, nextents
);
50 * Get a log_item_desc to point at the new item.
52 (void) xfs_trans_add_item(tp
, (xfs_log_item_t
*)efip
);
58 * This routine is called to indicate that the described
59 * extent is to be logged as needing to be freed. It should
60 * be called once for each extent to be freed.
63 xfs_trans_log_efi_extent(xfs_trans_t
*tp
,
64 xfs_efi_log_item_t
*efip
,
65 xfs_fsblock_t start_block
,
68 xfs_log_item_desc_t
*lidp
;
72 lidp
= xfs_trans_find_item(tp
, (xfs_log_item_t
*)efip
);
75 tp
->t_flags
|= XFS_TRANS_DIRTY
;
76 lidp
->lid_flags
|= XFS_LID_DIRTY
;
78 next_extent
= efip
->efi_next_extent
;
79 ASSERT(next_extent
< efip
->efi_format
.efi_nextents
);
80 extp
= &(efip
->efi_format
.efi_extents
[next_extent
]);
81 extp
->ext_start
= start_block
;
82 extp
->ext_len
= ext_len
;
83 efip
->efi_next_extent
++;
88 * This routine is called to allocate an "extent free done"
89 * log item that will hold nextents worth of extents. The
90 * caller must use all nextents extents, because we are not
91 * flexible about this at all.
94 xfs_trans_get_efd(xfs_trans_t
*tp
,
95 xfs_efi_log_item_t
*efip
,
98 xfs_efd_log_item_t
*efdp
;
101 ASSERT(nextents
> 0);
103 efdp
= xfs_efd_init(tp
->t_mountp
, efip
, nextents
);
104 ASSERT(efdp
!= NULL
);
107 * Get a log_item_desc to point at the new item.
109 (void) xfs_trans_add_item(tp
, (xfs_log_item_t
*)efdp
);
115 * This routine is called to indicate that the described
116 * extent is to be logged as having been freed. It should
117 * be called once for each extent freed.
120 xfs_trans_log_efd_extent(xfs_trans_t
*tp
,
121 xfs_efd_log_item_t
*efdp
,
122 xfs_fsblock_t start_block
,
123 xfs_extlen_t ext_len
)
125 xfs_log_item_desc_t
*lidp
;
129 lidp
= xfs_trans_find_item(tp
, (xfs_log_item_t
*)efdp
);
130 ASSERT(lidp
!= NULL
);
132 tp
->t_flags
|= XFS_TRANS_DIRTY
;
133 lidp
->lid_flags
|= XFS_LID_DIRTY
;
135 next_extent
= efdp
->efd_next_extent
;
136 ASSERT(next_extent
< efdp
->efd_format
.efd_nextents
);
137 extp
= &(efdp
->efd_format
.efd_extents
[next_extent
]);
138 extp
->ext_start
= start_block
;
139 extp
->ext_len
= ext_len
;
140 efdp
->efd_next_extent
++;