| /* |
| * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libxfs.h" |
| #include "command.h" |
| #include "type.h" |
| #include "faddr.h" |
| #include "fprint.h" |
| #include "field.h" |
| #include "io.h" |
| #include "bit.h" |
| #include "output.h" |
| #include "init.h" |
| #include "agfl.h" |
| |
| static int agfl_bno_size(void *obj, int startoff); |
| static int agfl_f(int argc, char **argv); |
| static void agfl_help(void); |
| |
| static const cmdinfo_t agfl_cmd = |
| { "agfl", NULL, agfl_f, 0, 1, 1, N_("[agno]"), |
| N_("set address to agfl block"), agfl_help }; |
| |
| const field_t agfl_hfld[] = { { |
| "", FLDT_AGFL, OI(0), C1, 0, TYP_NONE, }, |
| { NULL } |
| }; |
| |
| const field_t agfl_crc_hfld[] = { { |
| "", FLDT_AGFL_CRC, OI(0), C1, 0, TYP_NONE, }, |
| { NULL } |
| }; |
| |
| #define OFF(f) bitize(offsetof(xfs_agfl_t, agfl_ ## f)) |
| const field_t agfl_flds[] = { |
| { "bno", FLDT_AGBLOCKNZ, OI(OFF(magicnum)), agfl_bno_size, |
| FLD_ARRAY|FLD_COUNT, TYP_DATA }, |
| { NULL } |
| }; |
| |
| const field_t agfl_crc_flds[] = { |
| { "magicnum", FLDT_UINT32X, OI(OFF(magicnum)), C1, 0, TYP_NONE }, |
| { "seqno", FLDT_AGNUMBER, OI(OFF(seqno)), C1, 0, TYP_NONE }, |
| { "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE }, |
| { "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE }, |
| { "crc", FLDT_CRC, OI(OFF(crc)), C1, 0, TYP_NONE }, |
| { "bno", FLDT_AGBLOCKNZ, OI(OFF(bno)), agfl_bno_size, |
| FLD_ARRAY|FLD_COUNT, TYP_DATA }, |
| { NULL } |
| }; |
| |
| static int |
| agfl_bno_size( |
| void *obj, |
| int startoff) |
| { |
| return XFS_AGFL_SIZE(mp); |
| } |
| |
| static void |
| agfl_help(void) |
| { |
| dbprintf(_( |
| "\n" |
| " set allocation group freelist\n" |
| "\n" |
| " Example:\n" |
| "\n" |
| " agfl 5" |
| "\n" |
| " Located in the fourth sector of each allocation group,\n" |
| " the agfl freelist for internal btree space allocation is maintained\n" |
| " for each allocation group. This acts as a reserved pool of space\n" |
| " separate from the general filesystem freespace (not used for user data).\n" |
| "\n" |
| )); |
| |
| } |
| |
| static int |
| agfl_f( |
| int argc, |
| char **argv) |
| { |
| xfs_agnumber_t agno; |
| char *p; |
| |
| if (argc > 1) { |
| agno = (xfs_agnumber_t)strtoul(argv[1], &p, 0); |
| if (*p != '\0' || agno >= mp->m_sb.sb_agcount) { |
| dbprintf(_("bad allocation group number %s\n"), argv[1]); |
| return 0; |
| } |
| cur_agno = agno; |
| } else if (cur_agno == NULLAGNUMBER) |
| cur_agno = 0; |
| ASSERT(typtab[TYP_AGFL].typnm == TYP_AGFL); |
| set_cur(&typtab[TYP_AGFL], |
| XFS_AG_DADDR(mp, cur_agno, XFS_AGFL_DADDR(mp)), |
| XFS_FSS_TO_BB(mp, 1), DB_RING_ADD, NULL); |
| return 0; |
| } |
| |
| void |
| agfl_init(void) |
| { |
| add_command(&agfl_cmd); |
| } |
| |
| /*ARGSUSED*/ |
| int |
| agfl_size( |
| void *obj, |
| int startoff, |
| int idx) |
| { |
| return bitize(mp->m_sb.sb_sectsize); |
| } |