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git.ipfire.org Git - thirdparty/xfsprogs-dev.git/blob - db/agfl.c
2 * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
28 * For further information regarding this notice, see:
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
45 static int agfl_bno_size(void *obj
, int startoff
);
46 static int agfl_f(int argc
, char **argv
);
47 static void agfl_help(void);
49 static const cmdinfo_t agfl_cmd
=
50 { "agfl", NULL
, agfl_f
, 0, 1, 1, "[agno]",
51 "set address to agfl block", agfl_help
};
53 const field_t agfl_hfld
[] = { {
54 "", FLDT_AGFL
, OI(0), C1
, 0, TYP_NONE
, },
58 #define OFF(f) bitize(offsetof(xfs_agfl_t, agfl_ ## f))
59 const field_t agfl_flds
[] = {
60 { "bno", FLDT_AGBLOCKNZ
, OI(OFF(bno
)), agfl_bno_size
,
61 FLD_ARRAY
|FLD_COUNT
, TYP_DATA
},
70 return XFS_AGFL_SIZE(mp
);
78 " set allocation group freelist\n"
84 " Located in the fourth sector of each allocation group,\n"
85 " the agfl freelist for internal btree space allocation is maintained\n"
86 " for each allocation group. This acts as a reserved pool of space\n"
87 " separate from the general filesystem freespace (not used for user data).\n"
102 agno
= (xfs_agnumber_t
)strtoul(argv
[1], &p
, 0);
103 if (*p
!= '\0' || agno
>= mp
->m_sb
.sb_agcount
) {
104 dbprintf("bad allocation group number %s\n", argv
[1]);
108 } else if (cur_agno
== NULLAGNUMBER
)
110 ASSERT(typtab
[TYP_AGFL
].typnm
== TYP_AGFL
);
111 set_cur(&typtab
[TYP_AGFL
],
112 XFS_AG_DADDR(mp
, cur_agno
, XFS_AGFL_DADDR(mp
)),
113 XFS_FSS_TO_BB(mp
, 1), DB_RING_ADD
, NULL
);
120 add_command(&agfl_cmd
);
130 return bitize(mp
->m_sb
.sb_sectsize
);