Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "xfs.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 19 | #include "xfs_fs.h" |
Dave Chinner | 70a9883 | 2013-10-23 10:36:05 +1100 | [diff] [blame] | 20 | #include "xfs_shared.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 21 | #include "xfs_format.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 22 | #include "xfs_log_format.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 23 | #include "xfs_trans_resv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include "xfs_sb.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 25 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include "xfs_mount.h" |
Dave Chinner | 8f66193 | 2014-06-06 15:15:59 +1000 | [diff] [blame] | 27 | #include "xfs_da_format.h" |
| 28 | #include "xfs_da_btree.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 29 | #include "xfs_inode.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 30 | #include "xfs_trans.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 31 | #include "xfs_inode_item.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "xfs_error.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 33 | #include "xfs_btree.h" |
| 34 | #include "xfs_alloc_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include "xfs_alloc.h" |
| 36 | #include "xfs_ialloc.h" |
| 37 | #include "xfs_fsops.h" |
| 38 | #include "xfs_itable.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include "xfs_trans_space.h" |
| 40 | #include "xfs_rtalloc.h" |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 41 | #include "xfs_trace.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 42 | #include "xfs_log.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 43 | #include "xfs_dinode.h" |
| 44 | #include "xfs_filestream.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * File system operations |
| 48 | */ |
| 49 | |
| 50 | int |
| 51 | xfs_fs_geometry( |
| 52 | xfs_mount_t *mp, |
| 53 | xfs_fsop_geom_t *geo, |
| 54 | int new_version) |
| 55 | { |
Dan Rosenberg | c4d0c3b | 2011-02-14 13:45:28 +0000 | [diff] [blame] | 56 | |
| 57 | memset(geo, 0, sizeof(*geo)); |
| 58 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | geo->blocksize = mp->m_sb.sb_blocksize; |
| 60 | geo->rtextsize = mp->m_sb.sb_rextsize; |
| 61 | geo->agblocks = mp->m_sb.sb_agblocks; |
| 62 | geo->agcount = mp->m_sb.sb_agcount; |
| 63 | geo->logblocks = mp->m_sb.sb_logblocks; |
| 64 | geo->sectsize = mp->m_sb.sb_sectsize; |
| 65 | geo->inodesize = mp->m_sb.sb_inodesize; |
| 66 | geo->imaxpct = mp->m_sb.sb_imax_pct; |
| 67 | geo->datablocks = mp->m_sb.sb_dblocks; |
| 68 | geo->rtblocks = mp->m_sb.sb_rblocks; |
| 69 | geo->rtextents = mp->m_sb.sb_rextents; |
| 70 | geo->logstart = mp->m_sb.sb_logstart; |
| 71 | ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid)); |
| 72 | memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid)); |
| 73 | if (new_version >= 2) { |
| 74 | geo->sunit = mp->m_sb.sb_unit; |
| 75 | geo->swidth = mp->m_sb.sb_width; |
| 76 | } |
| 77 | if (new_version >= 3) { |
| 78 | geo->version = XFS_FSOP_GEOM_VERSION; |
Dave Chinner | 263997a | 2014-05-20 07:46:40 +1000 | [diff] [blame] | 79 | geo->flags = XFS_FSOP_GEOM_FLAGS_NLINK | |
Dave Chinner | 5d074a4 | 2014-05-20 07:46:55 +1000 | [diff] [blame] | 80 | XFS_FSOP_GEOM_FLAGS_DIRV2 | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 81 | (xfs_sb_version_hasattr(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | XFS_FSOP_GEOM_FLAGS_ATTR : 0) | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 83 | (xfs_sb_version_hasquota(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | XFS_FSOP_GEOM_FLAGS_QUOTA : 0) | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 85 | (xfs_sb_version_hasalign(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | XFS_FSOP_GEOM_FLAGS_IALIGN : 0) | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 87 | (xfs_sb_version_hasdalign(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | XFS_FSOP_GEOM_FLAGS_DALIGN : 0) | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 89 | (xfs_sb_version_hasextflgbit(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 91 | (xfs_sb_version_hassector(&mp->m_sb) ? |
Nathan Scott | d8cc890 | 2005-11-02 10:34:53 +1100 | [diff] [blame] | 92 | XFS_FSOP_GEOM_FLAGS_SECTOR : 0) | |
Barry Naujok | 189f4bf | 2008-05-21 16:58:55 +1000 | [diff] [blame] | 93 | (xfs_sb_version_hasasciici(&mp->m_sb) ? |
| 94 | XFS_FSOP_GEOM_FLAGS_DIRV2CI : 0) | |
David Chinner | 92821e2 | 2007-05-24 15:26:31 +1000 | [diff] [blame] | 95 | (xfs_sb_version_haslazysbcount(&mp->m_sb) ? |
| 96 | XFS_FSOP_GEOM_FLAGS_LAZYSB : 0) | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 97 | (xfs_sb_version_hasattr2(&mp->m_sb) ? |
Eric Sandeen | 69a58a4 | 2012-10-09 14:11:45 -0500 | [diff] [blame] | 98 | XFS_FSOP_GEOM_FLAGS_ATTR2 : 0) | |
| 99 | (xfs_sb_version_hasprojid32bit(&mp->m_sb) ? |
Dave Chinner | 74137fff | 2013-05-27 16:38:26 +1000 | [diff] [blame] | 100 | XFS_FSOP_GEOM_FLAGS_PROJID32 : 0) | |
| 101 | (xfs_sb_version_hascrc(&mp->m_sb) ? |
Mark Tinguely | 2900a57 | 2013-10-02 16:00:06 -0500 | [diff] [blame] | 102 | XFS_FSOP_GEOM_FLAGS_V5SB : 0) | |
| 103 | (xfs_sb_version_hasftype(&mp->m_sb) ? |
Brian Foster | 0c153c1 | 2014-04-24 16:01:41 +1000 | [diff] [blame] | 104 | XFS_FSOP_GEOM_FLAGS_FTYPE : 0) | |
| 105 | (xfs_sb_version_hasfinobt(&mp->m_sb) ? |
| 106 | XFS_FSOP_GEOM_FLAGS_FINOBT : 0); |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 107 | geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | mp->m_sb.sb_logsectsize : BBSIZE; |
| 109 | geo->rtsectsize = mp->m_sb.sb_blocksize; |
Dave Chinner | 8f66193 | 2014-06-06 15:15:59 +1000 | [diff] [blame] | 110 | geo->dirblocksize = mp->m_dir_geo->blksize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | } |
| 112 | if (new_version >= 4) { |
| 113 | geo->flags |= |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 114 | (xfs_sb_version_haslogv2(&mp->m_sb) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | XFS_FSOP_GEOM_FLAGS_LOGV2 : 0); |
| 116 | geo->logsunit = mp->m_sb.sb_logsunit; |
| 117 | } |
| 118 | return 0; |
| 119 | } |
| 120 | |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 121 | static struct xfs_buf * |
| 122 | xfs_growfs_get_hdr_buf( |
| 123 | struct xfs_mount *mp, |
| 124 | xfs_daddr_t blkno, |
| 125 | size_t numblks, |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 126 | int flags, |
| 127 | const struct xfs_buf_ops *ops) |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 128 | { |
| 129 | struct xfs_buf *bp; |
| 130 | |
| 131 | bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, flags); |
| 132 | if (!bp) |
| 133 | return NULL; |
| 134 | |
| 135 | xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); |
| 136 | bp->b_bn = blkno; |
| 137 | bp->b_maps[0].bm_bn = blkno; |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 138 | bp->b_ops = ops; |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 139 | |
| 140 | return bp; |
| 141 | } |
| 142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | static int |
| 144 | xfs_growfs_data_private( |
| 145 | xfs_mount_t *mp, /* mount point for filesystem */ |
| 146 | xfs_growfs_data_t *in) /* growfs data input struct */ |
| 147 | { |
| 148 | xfs_agf_t *agf; |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 149 | struct xfs_agfl *agfl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | xfs_agi_t *agi; |
| 151 | xfs_agnumber_t agno; |
| 152 | xfs_extlen_t agsize; |
| 153 | xfs_extlen_t tmpsize; |
| 154 | xfs_alloc_rec_t *arec; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | xfs_buf_t *bp; |
| 156 | int bucket; |
| 157 | int dpct; |
Eric Sandeen | 59e5a0e | 2013-10-11 14:14:05 -0500 | [diff] [blame] | 158 | int error, saved_error = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | xfs_agnumber_t nagcount; |
| 160 | xfs_agnumber_t nagimax = 0; |
| 161 | xfs_rfsblock_t nb, nb_mod; |
| 162 | xfs_rfsblock_t new; |
| 163 | xfs_rfsblock_t nfree; |
| 164 | xfs_agnumber_t oagcount; |
| 165 | int pct; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | xfs_trans_t *tp; |
| 167 | |
| 168 | nb = in->newblocks; |
| 169 | pct = in->imaxpct; |
| 170 | if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 171 | return -EINVAL; |
Nathan Scott | 4cc929e | 2007-05-14 18:24:02 +1000 | [diff] [blame] | 172 | if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb))) |
| 173 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | dpct = pct - mp->m_sb.sb_imax_pct; |
Dave Chinner | e70b73f | 2012-04-23 15:58:49 +1000 | [diff] [blame] | 175 | bp = xfs_buf_read_uncached(mp->m_ddev_targp, |
Dave Chinner | 1922c94 | 2010-09-22 10:47:20 +1000 | [diff] [blame] | 176 | XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), |
Dave Chinner | c3f8fc7 | 2012-11-12 22:54:01 +1100 | [diff] [blame] | 177 | XFS_FSS_TO_BB(mp, 1), 0, NULL); |
Dave Chinner | 1922c94 | 2010-09-22 10:47:20 +1000 | [diff] [blame] | 178 | if (!bp) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 179 | return -EIO; |
Dave Chinner | eab4e63 | 2012-11-12 22:54:02 +1100 | [diff] [blame] | 180 | if (bp->b_error) { |
Jie Liu | 897366f | 2013-05-14 22:50:21 +0800 | [diff] [blame] | 181 | error = bp->b_error; |
Dave Chinner | eab4e63 | 2012-11-12 22:54:02 +1100 | [diff] [blame] | 182 | xfs_buf_relse(bp); |
| 183 | return error; |
| 184 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | xfs_buf_relse(bp); |
| 186 | |
| 187 | new = nb; /* use new as a temporary here */ |
| 188 | nb_mod = do_div(new, mp->m_sb.sb_agblocks); |
| 189 | nagcount = new + (nb_mod != 0); |
| 190 | if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) { |
| 191 | nagcount--; |
Eric Sandeen | e6da7c9 | 2009-05-23 14:30:12 -0500 | [diff] [blame] | 192 | nb = (xfs_rfsblock_t)nagcount * mp->m_sb.sb_agblocks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | if (nb < mp->m_sb.sb_dblocks) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 194 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | } |
| 196 | new = nb - mp->m_sb.sb_dblocks; |
| 197 | oagcount = mp->m_sb.sb_agcount; |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 198 | |
| 199 | /* allocate the new per-ag structures */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | if (nagcount > oagcount) { |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 201 | error = xfs_initialize_perag(mp, nagcount, &nagimax); |
| 202 | if (error) |
| 203 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | } |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); |
David Chinner | 84e1e99 | 2007-06-18 16:50:27 +1000 | [diff] [blame] | 207 | tp->t_flags |= XFS_TRANS_RESERVE; |
Jie Liu | 3d3c8b5 | 2013-08-12 20:49:59 +1000 | [diff] [blame] | 208 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growdata, |
| 209 | XFS_GROWFS_SPACE_RES(mp), 0); |
| 210 | if (error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | xfs_trans_cancel(tp, 0); |
| 212 | return error; |
| 213 | } |
| 214 | |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 215 | /* |
| 216 | * Write new AG headers to disk. Non-transactional, but written |
| 217 | * synchronously so they are completed prior to the growfs transaction |
| 218 | * being logged. |
| 219 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | nfree = 0; |
| 221 | for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) { |
Dave Chinner | f94c445 | 2013-11-21 15:41:06 +1100 | [diff] [blame] | 222 | __be32 *agfl_bno; |
| 223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | /* |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 225 | * AG freespace header block |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | */ |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 227 | bp = xfs_growfs_get_hdr_buf(mp, |
| 228 | XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 229 | XFS_FSS_TO_BB(mp, 1), 0, |
| 230 | &xfs_agf_buf_ops); |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 231 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 232 | error = -ENOMEM; |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 233 | goto error0; |
| 234 | } |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | agf = XFS_BUF_TO_AGF(bp); |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 237 | agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC); |
| 238 | agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION); |
| 239 | agf->agf_seqno = cpu_to_be32(agno); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | if (agno == nagcount - 1) |
| 241 | agsize = |
| 242 | nb - |
| 243 | (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks); |
| 244 | else |
| 245 | agsize = mp->m_sb.sb_agblocks; |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 246 | agf->agf_length = cpu_to_be32(agsize); |
| 247 | agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp)); |
| 248 | agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp)); |
| 249 | agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1); |
| 250 | agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | agf->agf_flfirst = 0; |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 252 | agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | agf->agf_flcount = 0; |
| 254 | tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp); |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 255 | agf->agf_freeblks = cpu_to_be32(tmpsize); |
| 256 | agf->agf_longest = cpu_to_be32(tmpsize); |
Dave Chinner | 4e0e604 | 2013-04-03 16:11:13 +1100 | [diff] [blame] | 257 | if (xfs_sb_version_hascrc(&mp->m_sb)) |
| 258 | uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_uuid); |
| 259 | |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 260 | error = xfs_bwrite(bp); |
| 261 | xfs_buf_relse(bp); |
| 262 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | goto error0; |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 264 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | /* |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 266 | * AG freelist header block |
| 267 | */ |
| 268 | bp = xfs_growfs_get_hdr_buf(mp, |
| 269 | XFS_AG_DADDR(mp, agno, XFS_AGFL_DADDR(mp)), |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 270 | XFS_FSS_TO_BB(mp, 1), 0, |
| 271 | &xfs_agfl_buf_ops); |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 272 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 273 | error = -ENOMEM; |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 274 | goto error0; |
| 275 | } |
| 276 | |
| 277 | agfl = XFS_BUF_TO_AGFL(bp); |
Christoph Hellwig | 77c95bb | 2013-04-03 16:11:14 +1100 | [diff] [blame] | 278 | if (xfs_sb_version_hascrc(&mp->m_sb)) { |
| 279 | agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC); |
| 280 | agfl->agfl_seqno = cpu_to_be32(agno); |
| 281 | uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_uuid); |
| 282 | } |
Dave Chinner | f94c445 | 2013-11-21 15:41:06 +1100 | [diff] [blame] | 283 | |
| 284 | agfl_bno = XFS_BUF_TO_AGFL_BNO(mp, bp); |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 285 | for (bucket = 0; bucket < XFS_AGFL_SIZE(mp); bucket++) |
Dave Chinner | f94c445 | 2013-11-21 15:41:06 +1100 | [diff] [blame] | 286 | agfl_bno[bucket] = cpu_to_be32(NULLAGBLOCK); |
Dave Chinner | de49768 | 2012-11-12 22:54:00 +1100 | [diff] [blame] | 287 | |
| 288 | error = xfs_bwrite(bp); |
| 289 | xfs_buf_relse(bp); |
| 290 | if (error) |
| 291 | goto error0; |
| 292 | |
| 293 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | * AG inode header block |
| 295 | */ |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 296 | bp = xfs_growfs_get_hdr_buf(mp, |
| 297 | XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 298 | XFS_FSS_TO_BB(mp, 1), 0, |
| 299 | &xfs_agi_buf_ops); |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 300 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 301 | error = -ENOMEM; |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 302 | goto error0; |
| 303 | } |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 304 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | agi = XFS_BUF_TO_AGI(bp); |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 306 | agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC); |
| 307 | agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION); |
| 308 | agi->agi_seqno = cpu_to_be32(agno); |
| 309 | agi->agi_length = cpu_to_be32(agsize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | agi->agi_count = 0; |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 311 | agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp)); |
| 312 | agi->agi_level = cpu_to_be32(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | agi->agi_freecount = 0; |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 314 | agi->agi_newino = cpu_to_be32(NULLAGINO); |
| 315 | agi->agi_dirino = cpu_to_be32(NULLAGINO); |
Dave Chinner | 983d09f | 2013-04-03 16:11:15 +1100 | [diff] [blame] | 316 | if (xfs_sb_version_hascrc(&mp->m_sb)) |
| 317 | uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_uuid); |
Brian Foster | a3fa516 | 2014-04-24 16:01:39 +1000 | [diff] [blame] | 318 | if (xfs_sb_version_hasfinobt(&mp->m_sb)) { |
| 319 | agi->agi_free_root = cpu_to_be32(XFS_FIBT_BLOCK(mp)); |
| 320 | agi->agi_free_level = cpu_to_be32(1); |
| 321 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++) |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 323 | agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO); |
Dave Chinner | 983d09f | 2013-04-03 16:11:15 +1100 | [diff] [blame] | 324 | |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 325 | error = xfs_bwrite(bp); |
| 326 | xfs_buf_relse(bp); |
| 327 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | goto error0; |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 329 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | /* |
| 331 | * BNO btree root block |
| 332 | */ |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 333 | bp = xfs_growfs_get_hdr_buf(mp, |
| 334 | XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 335 | BTOBB(mp->m_sb.sb_blocksize), 0, |
| 336 | &xfs_allocbt_buf_ops); |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 337 | |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 338 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 339 | error = -ENOMEM; |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 340 | goto error0; |
| 341 | } |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 342 | |
Christoph Hellwig | ee1a47a | 2013-04-21 14:53:46 -0500 | [diff] [blame] | 343 | if (xfs_sb_version_hascrc(&mp->m_sb)) |
| 344 | xfs_btree_init_block(mp, bp, XFS_ABTB_CRC_MAGIC, 0, 1, |
| 345 | agno, XFS_BTREE_CRC_BLOCKS); |
| 346 | else |
| 347 | xfs_btree_init_block(mp, bp, XFS_ABTB_MAGIC, 0, 1, |
| 348 | agno, 0); |
| 349 | |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 350 | arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1); |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 351 | arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); |
| 352 | arec->ar_blockcount = cpu_to_be32( |
| 353 | agsize - be32_to_cpu(arec->ar_startblock)); |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 354 | |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 355 | error = xfs_bwrite(bp); |
| 356 | xfs_buf_relse(bp); |
| 357 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | goto error0; |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 359 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | /* |
| 361 | * CNT btree root block |
| 362 | */ |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 363 | bp = xfs_growfs_get_hdr_buf(mp, |
| 364 | XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 365 | BTOBB(mp->m_sb.sb_blocksize), 0, |
| 366 | &xfs_allocbt_buf_ops); |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 367 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 368 | error = -ENOMEM; |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 369 | goto error0; |
| 370 | } |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 371 | |
Christoph Hellwig | ee1a47a | 2013-04-21 14:53:46 -0500 | [diff] [blame] | 372 | if (xfs_sb_version_hascrc(&mp->m_sb)) |
| 373 | xfs_btree_init_block(mp, bp, XFS_ABTC_CRC_MAGIC, 0, 1, |
| 374 | agno, XFS_BTREE_CRC_BLOCKS); |
| 375 | else |
| 376 | xfs_btree_init_block(mp, bp, XFS_ABTC_MAGIC, 0, 1, |
| 377 | agno, 0); |
| 378 | |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 379 | arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1); |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 380 | arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); |
| 381 | arec->ar_blockcount = cpu_to_be32( |
| 382 | agsize - be32_to_cpu(arec->ar_startblock)); |
| 383 | nfree += be32_to_cpu(arec->ar_blockcount); |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 384 | |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 385 | error = xfs_bwrite(bp); |
| 386 | xfs_buf_relse(bp); |
| 387 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | goto error0; |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 389 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | /* |
| 391 | * INO btree root block |
| 392 | */ |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 393 | bp = xfs_growfs_get_hdr_buf(mp, |
| 394 | XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 395 | BTOBB(mp->m_sb.sb_blocksize), 0, |
| 396 | &xfs_inobt_buf_ops); |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 397 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 398 | error = -ENOMEM; |
Chandra Seetharaman | b522950 | 2011-09-07 19:37:54 +0000 | [diff] [blame] | 399 | goto error0; |
| 400 | } |
Dave Chinner | fd23683 | 2012-11-12 22:53:59 +1100 | [diff] [blame] | 401 | |
Christoph Hellwig | ee1a47a | 2013-04-21 14:53:46 -0500 | [diff] [blame] | 402 | if (xfs_sb_version_hascrc(&mp->m_sb)) |
| 403 | xfs_btree_init_block(mp, bp, XFS_IBT_CRC_MAGIC, 0, 0, |
| 404 | agno, XFS_BTREE_CRC_BLOCKS); |
| 405 | else |
| 406 | xfs_btree_init_block(mp, bp, XFS_IBT_MAGIC, 0, 0, |
| 407 | agno, 0); |
Dave Chinner | b64f3a3 | 2012-11-13 16:40:27 -0600 | [diff] [blame] | 408 | |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 409 | error = xfs_bwrite(bp); |
| 410 | xfs_buf_relse(bp); |
| 411 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | goto error0; |
Brian Foster | a3fa516 | 2014-04-24 16:01:39 +1000 | [diff] [blame] | 413 | |
| 414 | /* |
| 415 | * FINO btree root block |
| 416 | */ |
| 417 | if (xfs_sb_version_hasfinobt(&mp->m_sb)) { |
| 418 | bp = xfs_growfs_get_hdr_buf(mp, |
| 419 | XFS_AGB_TO_DADDR(mp, agno, XFS_FIBT_BLOCK(mp)), |
| 420 | BTOBB(mp->m_sb.sb_blocksize), 0, |
| 421 | &xfs_inobt_buf_ops); |
| 422 | if (!bp) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 423 | error = -ENOMEM; |
Brian Foster | a3fa516 | 2014-04-24 16:01:39 +1000 | [diff] [blame] | 424 | goto error0; |
| 425 | } |
| 426 | |
| 427 | if (xfs_sb_version_hascrc(&mp->m_sb)) |
| 428 | xfs_btree_init_block(mp, bp, XFS_FIBT_CRC_MAGIC, |
| 429 | 0, 0, agno, |
| 430 | XFS_BTREE_CRC_BLOCKS); |
| 431 | else |
| 432 | xfs_btree_init_block(mp, bp, XFS_FIBT_MAGIC, 0, |
| 433 | 0, agno, 0); |
| 434 | |
| 435 | error = xfs_bwrite(bp); |
| 436 | xfs_buf_relse(bp); |
| 437 | if (error) |
| 438 | goto error0; |
| 439 | } |
| 440 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | } |
| 442 | xfs_trans_agblocks_delta(tp, nfree); |
| 443 | /* |
| 444 | * There are new blocks in the old last a.g. |
| 445 | */ |
| 446 | if (new) { |
| 447 | /* |
| 448 | * Change the agi length. |
| 449 | */ |
| 450 | error = xfs_ialloc_read_agi(mp, tp, agno, &bp); |
| 451 | if (error) { |
| 452 | goto error0; |
| 453 | } |
| 454 | ASSERT(bp); |
| 455 | agi = XFS_BUF_TO_AGI(bp); |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 456 | be32_add_cpu(&agi->agi_length, new); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | ASSERT(nagcount == oagcount || |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 458 | be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH); |
| 460 | /* |
| 461 | * Change agf length. |
| 462 | */ |
| 463 | error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp); |
| 464 | if (error) { |
| 465 | goto error0; |
| 466 | } |
| 467 | ASSERT(bp); |
| 468 | agf = XFS_BUF_TO_AGF(bp); |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 469 | be32_add_cpu(&agf->agf_length, new); |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 470 | ASSERT(be32_to_cpu(agf->agf_length) == |
| 471 | be32_to_cpu(agi->agi_length)); |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 472 | |
Tim Shimmin | 0164af5 | 2007-06-18 16:50:08 +1000 | [diff] [blame] | 473 | xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | /* |
| 475 | * Free the new space. |
| 476 | */ |
| 477 | error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno, |
Christoph Hellwig | 16259e7 | 2005-11-02 15:11:25 +1100 | [diff] [blame] | 478 | be32_to_cpu(agf->agf_length) - new), new); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | if (error) { |
| 480 | goto error0; |
| 481 | } |
| 482 | } |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 483 | |
| 484 | /* |
| 485 | * Update changed superblock fields transactionally. These are not |
| 486 | * seen by the rest of the world until the transaction commit applies |
| 487 | * them atomically to the superblock. |
| 488 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | if (nagcount > oagcount) |
| 490 | xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount); |
| 491 | if (nb > mp->m_sb.sb_dblocks) |
| 492 | xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS, |
| 493 | nb - mp->m_sb.sb_dblocks); |
| 494 | if (nfree) |
| 495 | xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree); |
| 496 | if (dpct) |
| 497 | xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct); |
Eric Sandeen | 1c72bf9 | 2007-05-08 13:48:42 +1000 | [diff] [blame] | 498 | error = xfs_trans_commit(tp, 0); |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 499 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | return error; |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 501 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | /* New allocation groups fully initialized, so update mount struct */ |
| 503 | if (nagimax) |
| 504 | mp->m_maxagi = nagimax; |
| 505 | if (mp->m_sb.sb_imax_pct) { |
| 506 | __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct; |
| 507 | do_div(icount, 100); |
| 508 | mp->m_maxicount = icount << mp->m_sb.sb_inopblog; |
| 509 | } else |
| 510 | mp->m_maxicount = 0; |
Dave Chinner | 055388a | 2011-01-04 11:35:03 +1100 | [diff] [blame] | 511 | xfs_set_low_space_thresholds(mp); |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 512 | |
| 513 | /* update secondary superblocks. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | for (agno = 1; agno < nagcount; agno++) { |
Dave Chinner | 1375cb6 | 2012-10-09 14:50:52 +1100 | [diff] [blame] | 515 | error = 0; |
| 516 | /* |
| 517 | * new secondary superblocks need to be zeroed, not read from |
| 518 | * disk as the contents of the new area we are growing into is |
| 519 | * completely unknown. |
| 520 | */ |
| 521 | if (agno < oagcount) { |
| 522 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), |
Dave Chinner | 9802182 | 2012-11-12 22:54:03 +1100 | [diff] [blame] | 524 | XFS_FSS_TO_BB(mp, 1), 0, &bp, |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 525 | &xfs_sb_buf_ops); |
Dave Chinner | 1375cb6 | 2012-10-09 14:50:52 +1100 | [diff] [blame] | 526 | } else { |
| 527 | bp = xfs_trans_get_buf(NULL, mp->m_ddev_targp, |
| 528 | XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), |
| 529 | XFS_FSS_TO_BB(mp, 1), 0); |
Dave Chinner | b0f539d | 2012-11-14 17:53:49 +1100 | [diff] [blame] | 530 | if (bp) { |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 531 | bp->b_ops = &xfs_sb_buf_ops; |
Dave Chinner | 1375cb6 | 2012-10-09 14:50:52 +1100 | [diff] [blame] | 532 | xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); |
Dave Chinner | b0f539d | 2012-11-14 17:53:49 +1100 | [diff] [blame] | 533 | } else |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 534 | error = -ENOMEM; |
Dave Chinner | 1375cb6 | 2012-10-09 14:50:52 +1100 | [diff] [blame] | 535 | } |
| 536 | |
Eric Sandeen | 59e5a0e | 2013-10-11 14:14:05 -0500 | [diff] [blame] | 537 | /* |
| 538 | * If we get an error reading or writing alternate superblocks, |
| 539 | * continue. xfs_repair chooses the "best" superblock based |
| 540 | * on most matches; if we break early, we'll leave more |
| 541 | * superblocks un-updated than updated, and xfs_repair may |
| 542 | * pick them over the properly-updated primary. |
| 543 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | if (error) { |
Dave Chinner | 5348778 | 2011-03-07 10:05:35 +1100 | [diff] [blame] | 545 | xfs_warn(mp, |
| 546 | "error %d reading secondary superblock for ag %d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | error, agno); |
Eric Sandeen | 59e5a0e | 2013-10-11 14:14:05 -0500 | [diff] [blame] | 548 | saved_error = error; |
| 549 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | } |
Christoph Hellwig | 2bdf7cd | 2007-08-28 13:58:06 +1000 | [diff] [blame] | 551 | xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS); |
Dave Chinner | 9802182 | 2012-11-12 22:54:03 +1100 | [diff] [blame] | 552 | |
Christoph Hellwig | c2b006c | 2011-08-23 08:28:07 +0000 | [diff] [blame] | 553 | error = xfs_bwrite(bp); |
| 554 | xfs_buf_relse(bp); |
| 555 | if (error) { |
Dave Chinner | 5348778 | 2011-03-07 10:05:35 +1100 | [diff] [blame] | 556 | xfs_warn(mp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | "write error %d updating secondary superblock for ag %d", |
| 558 | error, agno); |
Eric Sandeen | 59e5a0e | 2013-10-11 14:14:05 -0500 | [diff] [blame] | 559 | saved_error = error; |
| 560 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | } |
| 562 | } |
Eric Sandeen | 59e5a0e | 2013-10-11 14:14:05 -0500 | [diff] [blame] | 563 | return saved_error ? saved_error : error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
| 565 | error0: |
| 566 | xfs_trans_cancel(tp, XFS_TRANS_ABORT); |
| 567 | return error; |
| 568 | } |
| 569 | |
| 570 | static int |
| 571 | xfs_growfs_log_private( |
| 572 | xfs_mount_t *mp, /* mount point for filesystem */ |
| 573 | xfs_growfs_log_t *in) /* growfs log input struct */ |
| 574 | { |
| 575 | xfs_extlen_t nb; |
| 576 | |
| 577 | nb = in->newblocks; |
| 578 | if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES)) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 579 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | if (nb == mp->m_sb.sb_logblocks && |
| 581 | in->isint == (mp->m_sb.sb_logstart != 0)) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 582 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | /* |
| 584 | * Moving the log is hard, need new interfaces to sync |
| 585 | * the log first, hold off all activity while moving it. |
| 586 | * Can have shorter or longer log in the same space, |
| 587 | * or transform internal to external log or vice versa. |
| 588 | */ |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 589 | return -ENOSYS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | } |
| 591 | |
| 592 | /* |
| 593 | * protected versions of growfs function acquire and release locks on the mount |
| 594 | * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG, |
| 595 | * XFS_IOC_FSGROWFSRT |
| 596 | */ |
| 597 | |
| 598 | |
| 599 | int |
| 600 | xfs_growfs_data( |
| 601 | xfs_mount_t *mp, |
| 602 | xfs_growfs_data_t *in) |
| 603 | { |
| 604 | int error; |
sandeen@sandeen.net | 743bb465 | 2008-11-25 21:20:06 -0600 | [diff] [blame] | 605 | |
| 606 | if (!capable(CAP_SYS_ADMIN)) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 607 | return -EPERM; |
Christoph Hellwig | cc92e7a | 2007-08-30 17:21:54 +1000 | [diff] [blame] | 608 | if (!mutex_trylock(&mp->m_growlock)) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 609 | return -EWOULDBLOCK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | error = xfs_growfs_data_private(mp, in); |
Christoph Hellwig | cc92e7a | 2007-08-30 17:21:54 +1000 | [diff] [blame] | 611 | mutex_unlock(&mp->m_growlock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | return error; |
| 613 | } |
| 614 | |
| 615 | int |
| 616 | xfs_growfs_log( |
| 617 | xfs_mount_t *mp, |
| 618 | xfs_growfs_log_t *in) |
| 619 | { |
| 620 | int error; |
sandeen@sandeen.net | 743bb465 | 2008-11-25 21:20:06 -0600 | [diff] [blame] | 621 | |
| 622 | if (!capable(CAP_SYS_ADMIN)) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 623 | return -EPERM; |
Christoph Hellwig | cc92e7a | 2007-08-30 17:21:54 +1000 | [diff] [blame] | 624 | if (!mutex_trylock(&mp->m_growlock)) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 625 | return -EWOULDBLOCK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | error = xfs_growfs_log_private(mp, in); |
Christoph Hellwig | cc92e7a | 2007-08-30 17:21:54 +1000 | [diff] [blame] | 627 | mutex_unlock(&mp->m_growlock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | return error; |
| 629 | } |
| 630 | |
| 631 | /* |
| 632 | * exported through ioctl XFS_IOC_FSCOUNTS |
| 633 | */ |
| 634 | |
| 635 | int |
| 636 | xfs_fs_counts( |
| 637 | xfs_mount_t *mp, |
| 638 | xfs_fsop_counts_t *cnt) |
| 639 | { |
Christoph Hellwig | d4d90b5 | 2008-04-22 17:34:37 +1000 | [diff] [blame] | 640 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 641 | spin_lock(&mp->m_sb_lock); |
David Chinner | 4be536d | 2006-09-07 14:26:50 +1000 | [diff] [blame] | 642 | cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | cnt->freertx = mp->m_sb.sb_frextents; |
| 644 | cnt->freeino = mp->m_sb.sb_ifree; |
| 645 | cnt->allocino = mp->m_sb.sb_icount; |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 646 | spin_unlock(&mp->m_sb_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | return 0; |
| 648 | } |
| 649 | |
| 650 | /* |
| 651 | * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS |
| 652 | * |
| 653 | * xfs_reserve_blocks is called to set m_resblks |
| 654 | * in the in-core mount table. The number of unused reserved blocks |
Nathan Scott | c41564b | 2006-03-29 08:55:14 +1000 | [diff] [blame] | 655 | * is kept in m_resblks_avail. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | * |
| 657 | * Reserve the requested number of blocks if available. Otherwise return |
| 658 | * as many as possible to satisfy the request. The actual number |
| 659 | * reserved are returned in outval |
| 660 | * |
| 661 | * A null inval pointer indicates that only the current reserved blocks |
| 662 | * available should be returned no settings are changed. |
| 663 | */ |
| 664 | |
| 665 | int |
| 666 | xfs_reserve_blocks( |
| 667 | xfs_mount_t *mp, |
| 668 | __uint64_t *inval, |
| 669 | xfs_fsop_resblks_t *outval) |
| 670 | { |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 671 | __int64_t lcounter, delta, fdblks_delta; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | __uint64_t request; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | |
| 674 | /* If inval is null, report current values and return */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | if (inval == (__uint64_t *)NULL) { |
David Chinner | 84e1e99 | 2007-06-18 16:50:27 +1000 | [diff] [blame] | 676 | if (!outval) |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 677 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | outval->resblks = mp->m_resblks; |
| 679 | outval->resblks_avail = mp->m_resblks_avail; |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 680 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | } |
| 682 | |
| 683 | request = *inval; |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 684 | |
| 685 | /* |
| 686 | * With per-cpu counters, this becomes an interesting |
| 687 | * problem. we needto work out if we are freeing or allocation |
| 688 | * blocks first, then we can do the modification as necessary. |
| 689 | * |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 690 | * We do this under the m_sb_lock so that if we are near |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 691 | * ENOSPC, we will hold out any changes while we work out |
| 692 | * what to do. This means that the amount of free space can |
| 693 | * change while we do this, so we need to retry if we end up |
| 694 | * trying to reserve more space than is available. |
| 695 | * |
| 696 | * We also use the xfs_mod_incore_sb() interface so that we |
| 697 | * don't have to care about whether per cpu counter are |
| 698 | * enabled, disabled or even compiled in.... |
| 699 | */ |
| 700 | retry: |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 701 | spin_lock(&mp->m_sb_lock); |
Christoph Hellwig | d4d90b5 | 2008-04-22 17:34:37 +1000 | [diff] [blame] | 702 | xfs_icsb_sync_counters_locked(mp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | |
| 704 | /* |
| 705 | * If our previous reservation was larger than the current value, |
| 706 | * then move any unused blocks back to the free pool. |
| 707 | */ |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 708 | fdblks_delta = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | if (mp->m_resblks > request) { |
| 710 | lcounter = mp->m_resblks_avail - request; |
| 711 | if (lcounter > 0) { /* release unused blocks */ |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 712 | fdblks_delta = lcounter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | mp->m_resblks_avail -= lcounter; |
| 714 | } |
| 715 | mp->m_resblks = request; |
| 716 | } else { |
David Chinner | 4be536d | 2006-09-07 14:26:50 +1000 | [diff] [blame] | 717 | __int64_t free; |
| 718 | |
| 719 | free = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 720 | if (!free) |
| 721 | goto out; /* ENOSPC and fdblks_delta = 0 */ |
| 722 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | delta = request - mp->m_resblks; |
David Chinner | 4be536d | 2006-09-07 14:26:50 +1000 | [diff] [blame] | 724 | lcounter = free - delta; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | if (lcounter < 0) { |
| 726 | /* We can't satisfy the request, just get what we can */ |
David Chinner | 4be536d | 2006-09-07 14:26:50 +1000 | [diff] [blame] | 727 | mp->m_resblks += free; |
| 728 | mp->m_resblks_avail += free; |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 729 | fdblks_delta = -free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | } else { |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 731 | fdblks_delta = -delta; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | mp->m_resblks = request; |
| 733 | mp->m_resblks_avail += delta; |
| 734 | } |
| 735 | } |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 736 | out: |
David Chinner | 84e1e99 | 2007-06-18 16:50:27 +1000 | [diff] [blame] | 737 | if (outval) { |
| 738 | outval->resblks = mp->m_resblks; |
| 739 | outval->resblks_avail = mp->m_resblks_avail; |
| 740 | } |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 741 | spin_unlock(&mp->m_sb_lock); |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 742 | |
| 743 | if (fdblks_delta) { |
| 744 | /* |
| 745 | * If we are putting blocks back here, m_resblks_avail is |
Malcolm Parsons | 9da096f | 2009-03-29 09:55:42 +0200 | [diff] [blame] | 746 | * already at its max so this will put it in the free pool. |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 747 | * |
| 748 | * If we need space, we'll either succeed in getting it |
| 749 | * from the free block count or we'll get an enospc. If |
| 750 | * we get a ENOSPC, it means things changed while we were |
| 751 | * calculating fdblks_delta and so we should try again to |
| 752 | * see if there is anything left to reserve. |
| 753 | * |
| 754 | * Don't set the reserved flag here - we don't want to reserve |
| 755 | * the extra reserve blocks from the reserve..... |
| 756 | */ |
| 757 | int error; |
Christoph Hellwig | 96540c7 | 2010-09-30 02:25:55 +0000 | [diff] [blame] | 758 | error = xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS, |
| 759 | fdblks_delta, 0); |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 760 | if (error == -ENOSPC) |
David Chinner | dbcabad | 2007-02-10 18:36:17 +1100 | [diff] [blame] | 761 | goto retry; |
| 762 | } |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 763 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | } |
| 765 | |
Dave Chinner | 1a387d3 | 2010-08-24 11:46:31 +1000 | [diff] [blame] | 766 | /* |
| 767 | * Dump a transaction into the log that contains no real change. This is needed |
| 768 | * to be able to make the log dirty or stamp the current tail LSN into the log |
| 769 | * during the covering operation. |
| 770 | * |
| 771 | * We cannot use an inode here for this - that will push dirty state back up |
| 772 | * into the VFS and then periodic inode flushing will prevent log covering from |
Dave Chinner | c58efdb | 2011-01-04 04:49:29 +0000 | [diff] [blame] | 773 | * making progress. Hence we log a field in the superblock instead and use a |
| 774 | * synchronous transaction to ensure the superblock is immediately unpinned |
| 775 | * and can be written back. |
Dave Chinner | 1a387d3 | 2010-08-24 11:46:31 +1000 | [diff] [blame] | 776 | */ |
Takashi Sato | c4be0c1 | 2009-01-09 16:40:58 -0800 | [diff] [blame] | 777 | int |
Nathan Scott | 421ad13 | 2006-06-09 17:12:46 +1000 | [diff] [blame] | 778 | xfs_fs_log_dummy( |
Dave Chinner | c58efdb | 2011-01-04 04:49:29 +0000 | [diff] [blame] | 779 | xfs_mount_t *mp) |
Christoph Hellwig | e13a73f | 2006-01-11 15:30:08 +1100 | [diff] [blame] | 780 | { |
Nathan Scott | 421ad13 | 2006-06-09 17:12:46 +1000 | [diff] [blame] | 781 | xfs_trans_t *tp; |
Takashi Sato | c4be0c1 | 2009-01-09 16:40:58 -0800 | [diff] [blame] | 782 | int error; |
Christoph Hellwig | e13a73f | 2006-01-11 15:30:08 +1100 | [diff] [blame] | 783 | |
Christoph Hellwig | 80641dc | 2009-10-19 04:00:03 +0000 | [diff] [blame] | 784 | tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP); |
Jie Liu | 3d3c8b5 | 2013-08-12 20:49:59 +1000 | [diff] [blame] | 785 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); |
Takashi Sato | c4be0c1 | 2009-01-09 16:40:58 -0800 | [diff] [blame] | 786 | if (error) { |
Christoph Hellwig | e13a73f | 2006-01-11 15:30:08 +1100 | [diff] [blame] | 787 | xfs_trans_cancel(tp, 0); |
Takashi Sato | c4be0c1 | 2009-01-09 16:40:58 -0800 | [diff] [blame] | 788 | return error; |
Christoph Hellwig | e13a73f | 2006-01-11 15:30:08 +1100 | [diff] [blame] | 789 | } |
| 790 | |
Dave Chinner | 1a387d3 | 2010-08-24 11:46:31 +1000 | [diff] [blame] | 791 | /* log the UUID because it is an unchanging field */ |
| 792 | xfs_mod_sb(tp, XFS_SB_UUID); |
Dave Chinner | c58efdb | 2011-01-04 04:49:29 +0000 | [diff] [blame] | 793 | xfs_trans_set_sync(tp); |
Dave Chinner | 1a387d3 | 2010-08-24 11:46:31 +1000 | [diff] [blame] | 794 | return xfs_trans_commit(tp, 0); |
Christoph Hellwig | e13a73f | 2006-01-11 15:30:08 +1100 | [diff] [blame] | 795 | } |
| 796 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | int |
| 798 | xfs_fs_goingdown( |
| 799 | xfs_mount_t *mp, |
| 800 | __uint32_t inflags) |
| 801 | { |
| 802 | switch (inflags) { |
| 803 | case XFS_FSOP_GOING_FLAGS_DEFAULT: { |
Christoph Hellwig | b267ce9 | 2007-08-30 17:21:30 +1000 | [diff] [blame] | 804 | struct super_block *sb = freeze_bdev(mp->m_super->s_bdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | |
Christoph Hellwig | f33c679 | 2005-11-25 16:41:47 +1100 | [diff] [blame] | 806 | if (sb && !IS_ERR(sb)) { |
Nathan Scott | 7d04a33 | 2006-06-09 14:58:38 +1000 | [diff] [blame] | 807 | xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | thaw_bdev(sb->s_bdev, sb); |
| 809 | } |
Barry Naujok | 189f4bf | 2008-05-21 16:58:55 +1000 | [diff] [blame] | 810 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | break; |
| 812 | } |
| 813 | case XFS_FSOP_GOING_FLAGS_LOGFLUSH: |
Nathan Scott | 7d04a33 | 2006-06-09 14:58:38 +1000 | [diff] [blame] | 814 | xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | break; |
| 816 | case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH: |
Nathan Scott | 7d04a33 | 2006-06-09 14:58:38 +1000 | [diff] [blame] | 817 | xfs_force_shutdown(mp, |
| 818 | SHUTDOWN_FORCE_UMOUNT | SHUTDOWN_LOG_IO_ERROR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | break; |
| 820 | default: |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 821 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | } |
| 823 | |
| 824 | return 0; |
| 825 | } |
Dave Chinner | 2af51f3 | 2012-04-23 15:59:03 +1000 | [diff] [blame] | 826 | |
| 827 | /* |
| 828 | * Force a shutdown of the filesystem instantly while keeping the filesystem |
| 829 | * consistent. We don't do an unmount here; just shutdown the shop, make sure |
| 830 | * that absolutely nothing persistent happens to this filesystem after this |
| 831 | * point. |
| 832 | */ |
| 833 | void |
| 834 | xfs_do_force_shutdown( |
| 835 | xfs_mount_t *mp, |
| 836 | int flags, |
| 837 | char *fname, |
| 838 | int lnnum) |
| 839 | { |
| 840 | int logerror; |
| 841 | |
| 842 | logerror = flags & SHUTDOWN_LOG_IO_ERROR; |
| 843 | |
| 844 | if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { |
| 845 | xfs_notice(mp, |
| 846 | "%s(0x%x) called from line %d of file %s. Return address = 0x%p", |
| 847 | __func__, flags, lnnum, fname, __return_address); |
| 848 | } |
| 849 | /* |
| 850 | * No need to duplicate efforts. |
| 851 | */ |
| 852 | if (XFS_FORCED_SHUTDOWN(mp) && !logerror) |
| 853 | return; |
| 854 | |
| 855 | /* |
| 856 | * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't |
| 857 | * queue up anybody new on the log reservations, and wakes up |
| 858 | * everybody who's sleeping on log reservations to tell them |
| 859 | * the bad news. |
| 860 | */ |
| 861 | if (xfs_log_force_umount(mp, logerror)) |
| 862 | return; |
| 863 | |
| 864 | if (flags & SHUTDOWN_CORRUPT_INCORE) { |
| 865 | xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT, |
| 866 | "Corruption of in-memory data detected. Shutting down filesystem"); |
| 867 | if (XFS_ERRLEVEL_HIGH <= xfs_error_level) |
| 868 | xfs_stack_trace(); |
| 869 | } else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { |
| 870 | if (logerror) { |
| 871 | xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR, |
| 872 | "Log I/O Error Detected. Shutting down filesystem"); |
| 873 | } else if (flags & SHUTDOWN_DEVICE_REQ) { |
| 874 | xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR, |
| 875 | "All device paths lost. Shutting down filesystem"); |
| 876 | } else if (!(flags & SHUTDOWN_REMOTE_REQ)) { |
| 877 | xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR, |
| 878 | "I/O Error Detected. Shutting down filesystem"); |
| 879 | } |
| 880 | } |
| 881 | if (!(flags & SHUTDOWN_FORCE_UMOUNT)) { |
| 882 | xfs_alert(mp, |
| 883 | "Please umount the filesystem and rectify the problem(s)"); |
| 884 | } |
| 885 | } |