1153323Srodrigc/* 2159451Srodrigc * Copyright (c) 2000-2005 Silicon Graphics, Inc. 3159451Srodrigc * All Rights Reserved. 4153323Srodrigc * 5159451Srodrigc * This program is free software; you can redistribute it and/or 6159451Srodrigc * modify it under the terms of the GNU General Public License as 7153323Srodrigc * published by the Free Software Foundation. 8153323Srodrigc * 9159451Srodrigc * This program is distributed in the hope that it would be useful, 10159451Srodrigc * but WITHOUT ANY WARRANTY; without even the implied warranty of 11159451Srodrigc * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12159451Srodrigc * GNU General Public License for more details. 13153323Srodrigc * 14159451Srodrigc * You should have received a copy of the GNU General Public License 15159451Srodrigc * along with this program; if not, write the Free Software Foundation, 16159451Srodrigc * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17153323Srodrigc */ 18153323Srodrigc#include "xfs.h" 19159451Srodrigc#include "xfs_fs.h" 20153323Srodrigc#include "xfs_types.h" 21159451Srodrigc#include "xfs_bit.h" 22153323Srodrigc#include "xfs_inum.h" 23153323Srodrigc#include "xfs_log.h" 24153323Srodrigc#include "xfs_trans.h" 25153323Srodrigc#include "xfs_sb.h" 26159451Srodrigc#include "xfs_ag.h" 27153323Srodrigc#include "xfs_dir.h" 28159451Srodrigc#include "xfs_dir2.h" 29153323Srodrigc#include "xfs_dmapi.h" 30153323Srodrigc#include "xfs_mount.h" 31159451Srodrigc#include "xfs_bmap_btree.h" 32153323Srodrigc#include "xfs_alloc_btree.h" 33153323Srodrigc#include "xfs_ialloc_btree.h" 34159451Srodrigc#include "xfs_dir_sf.h" 35159451Srodrigc#include "xfs_dir2_sf.h" 36159451Srodrigc#include "xfs_attr_sf.h" 37159451Srodrigc#include "xfs_dinode.h" 38159451Srodrigc#include "xfs_inode.h" 39159451Srodrigc#include "xfs_inode_item.h" 40153323Srodrigc#include "xfs_btree.h" 41153323Srodrigc#include "xfs_error.h" 42153323Srodrigc#include "xfs_alloc.h" 43153323Srodrigc#include "xfs_ialloc.h" 44153323Srodrigc#include "xfs_fsops.h" 45153323Srodrigc#include "xfs_itable.h" 46153323Srodrigc#include "xfs_trans_space.h" 47153323Srodrigc#include "xfs_rtalloc.h" 48159451Srodrigc#include "xfs_rw.h" 49153323Srodrigc 50153323Srodrigc/* 51153323Srodrigc * File system operations 52153323Srodrigc */ 53153323Srodrigc 54153323Srodrigcint 55153323Srodrigcxfs_fs_geometry( 56153323Srodrigc xfs_mount_t *mp, 57153323Srodrigc xfs_fsop_geom_t *geo, 58153323Srodrigc int new_version) 59153323Srodrigc{ 60153323Srodrigc geo->blocksize = mp->m_sb.sb_blocksize; 61153323Srodrigc geo->rtextsize = mp->m_sb.sb_rextsize; 62153323Srodrigc geo->agblocks = mp->m_sb.sb_agblocks; 63153323Srodrigc geo->agcount = mp->m_sb.sb_agcount; 64153323Srodrigc geo->logblocks = mp->m_sb.sb_logblocks; 65153323Srodrigc geo->sectsize = mp->m_sb.sb_sectsize; 66153323Srodrigc geo->inodesize = mp->m_sb.sb_inodesize; 67153323Srodrigc geo->imaxpct = mp->m_sb.sb_imax_pct; 68153323Srodrigc geo->datablocks = mp->m_sb.sb_dblocks; 69153323Srodrigc geo->rtblocks = mp->m_sb.sb_rblocks; 70153323Srodrigc geo->rtextents = mp->m_sb.sb_rextents; 71153323Srodrigc geo->logstart = mp->m_sb.sb_logstart; 72153323Srodrigc ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid)); 73153323Srodrigc memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid)); 74153323Srodrigc if (new_version >= 2) { 75153323Srodrigc geo->sunit = mp->m_sb.sb_unit; 76153323Srodrigc geo->swidth = mp->m_sb.sb_width; 77153323Srodrigc } 78153323Srodrigc if (new_version >= 3) { 79153323Srodrigc geo->version = XFS_FSOP_GEOM_VERSION; 80153323Srodrigc geo->flags = 81153323Srodrigc (XFS_SB_VERSION_HASATTR(&mp->m_sb) ? 82153323Srodrigc XFS_FSOP_GEOM_FLAGS_ATTR : 0) | 83153323Srodrigc (XFS_SB_VERSION_HASNLINK(&mp->m_sb) ? 84153323Srodrigc XFS_FSOP_GEOM_FLAGS_NLINK : 0) | 85153323Srodrigc (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ? 86153323Srodrigc XFS_FSOP_GEOM_FLAGS_QUOTA : 0) | 87153323Srodrigc (XFS_SB_VERSION_HASALIGN(&mp->m_sb) ? 88153323Srodrigc XFS_FSOP_GEOM_FLAGS_IALIGN : 0) | 89153323Srodrigc (XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ? 90153323Srodrigc XFS_FSOP_GEOM_FLAGS_DALIGN : 0) | 91153323Srodrigc (XFS_SB_VERSION_HASSHARED(&mp->m_sb) ? 92153323Srodrigc XFS_FSOP_GEOM_FLAGS_SHARED : 0) | 93153323Srodrigc (XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ? 94153323Srodrigc XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) | 95153323Srodrigc (XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ? 96153323Srodrigc XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) | 97153323Srodrigc (XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? 98159451Srodrigc XFS_FSOP_GEOM_FLAGS_SECTOR : 0) | 99159451Srodrigc (XFS_SB_VERSION_HASATTR2(&mp->m_sb) ? 100159451Srodrigc XFS_FSOP_GEOM_FLAGS_ATTR2 : 0); 101153323Srodrigc geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? 102153323Srodrigc mp->m_sb.sb_logsectsize : BBSIZE; 103153323Srodrigc geo->rtsectsize = mp->m_sb.sb_blocksize; 104153323Srodrigc geo->dirblocksize = mp->m_dirblksize; 105153323Srodrigc } 106153323Srodrigc if (new_version >= 4) { 107153323Srodrigc geo->flags |= 108153323Srodrigc (XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ? 109153323Srodrigc XFS_FSOP_GEOM_FLAGS_LOGV2 : 0); 110153323Srodrigc geo->logsunit = mp->m_sb.sb_logsunit; 111153323Srodrigc } 112153323Srodrigc return 0; 113153323Srodrigc} 114153323Srodrigc 115153323Srodrigcstatic int 116153323Srodrigcxfs_growfs_data_private( 117153323Srodrigc xfs_mount_t *mp, /* mount point for filesystem */ 118153323Srodrigc xfs_growfs_data_t *in) /* growfs data input struct */ 119153323Srodrigc{ 120153323Srodrigc xfs_agf_t *agf; 121153323Srodrigc xfs_agi_t *agi; 122153323Srodrigc xfs_agnumber_t agno; 123153323Srodrigc xfs_extlen_t agsize; 124153323Srodrigc xfs_extlen_t tmpsize; 125153323Srodrigc xfs_alloc_rec_t *arec; 126153323Srodrigc xfs_btree_sblock_t *block; 127153323Srodrigc xfs_buf_t *bp; 128153323Srodrigc int bucket; 129153323Srodrigc int dpct; 130153323Srodrigc int error; 131153323Srodrigc xfs_agnumber_t nagcount; 132159451Srodrigc xfs_agnumber_t nagimax = 0; 133153323Srodrigc xfs_rfsblock_t nb, nb_mod; 134153323Srodrigc xfs_rfsblock_t new; 135153323Srodrigc xfs_rfsblock_t nfree; 136153323Srodrigc xfs_agnumber_t oagcount; 137153323Srodrigc int pct; 138153323Srodrigc xfs_sb_t *sbp; 139153323Srodrigc xfs_trans_t *tp; 140153323Srodrigc 141153323Srodrigc nb = in->newblocks; 142153323Srodrigc pct = in->imaxpct; 143153323Srodrigc if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100) 144153323Srodrigc return XFS_ERROR(EINVAL); 145153323Srodrigc dpct = pct - mp->m_sb.sb_imax_pct; 146153323Srodrigc error = xfs_read_buf(mp, mp->m_ddev_targp, 147153323Srodrigc XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), 148153323Srodrigc XFS_FSS_TO_BB(mp, 1), 0, &bp); 149153323Srodrigc if (error) 150153323Srodrigc return error; 151153323Srodrigc ASSERT(bp); 152153323Srodrigc xfs_buf_relse(bp); 153153323Srodrigc 154153323Srodrigc new = nb; /* use new as a temporary here */ 155153323Srodrigc nb_mod = do_div(new, mp->m_sb.sb_agblocks); 156153323Srodrigc nagcount = new + (nb_mod != 0); 157153323Srodrigc if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) { 158153323Srodrigc nagcount--; 159153323Srodrigc nb = nagcount * mp->m_sb.sb_agblocks; 160153323Srodrigc if (nb < mp->m_sb.sb_dblocks) 161153323Srodrigc return XFS_ERROR(EINVAL); 162153323Srodrigc } 163153323Srodrigc new = nb - mp->m_sb.sb_dblocks; 164153323Srodrigc oagcount = mp->m_sb.sb_agcount; 165153323Srodrigc if (nagcount > oagcount) { 166153323Srodrigc down_write(&mp->m_peraglock); 167153323Srodrigc mp->m_perag = kmem_realloc(mp->m_perag, 168153323Srodrigc sizeof(xfs_perag_t) * nagcount, 169153323Srodrigc sizeof(xfs_perag_t) * oagcount, 170153323Srodrigc KM_SLEEP); 171153323Srodrigc memset(&mp->m_perag[oagcount], 0, 172153323Srodrigc (nagcount - oagcount) * sizeof(xfs_perag_t)); 173153323Srodrigc mp->m_flags |= XFS_MOUNT_32BITINODES; 174159451Srodrigc nagimax = xfs_initialize_perag(XFS_MTOVFS(mp), mp, nagcount); 175153323Srodrigc up_write(&mp->m_peraglock); 176153323Srodrigc } 177153323Srodrigc tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); 178153323Srodrigc if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp), 179153323Srodrigc XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) { 180153323Srodrigc xfs_trans_cancel(tp, 0); 181153323Srodrigc return error; 182153323Srodrigc } 183153323Srodrigc 184153323Srodrigc nfree = 0; 185153323Srodrigc for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) { 186153323Srodrigc /* 187153323Srodrigc * AG freelist header block 188153323Srodrigc */ 189153323Srodrigc bp = xfs_buf_get(mp->m_ddev_targp, 190153323Srodrigc XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), 191153323Srodrigc XFS_FSS_TO_BB(mp, 1), 0); 192153323Srodrigc agf = XFS_BUF_TO_AGF(bp); 193153323Srodrigc memset(agf, 0, mp->m_sb.sb_sectsize); 194159451Srodrigc agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC); 195159451Srodrigc agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION); 196159451Srodrigc agf->agf_seqno = cpu_to_be32(agno); 197153323Srodrigc if (agno == nagcount - 1) 198153323Srodrigc agsize = 199153323Srodrigc nb - 200153323Srodrigc (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks); 201153323Srodrigc else 202153323Srodrigc agsize = mp->m_sb.sb_agblocks; 203159451Srodrigc agf->agf_length = cpu_to_be32(agsize); 204159451Srodrigc agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp)); 205159451Srodrigc agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp)); 206159451Srodrigc agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1); 207159451Srodrigc agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1); 208159451Srodrigc agf->agf_flfirst = 0; 209159451Srodrigc agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1); 210159451Srodrigc agf->agf_flcount = 0; 211153323Srodrigc tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp); 212159451Srodrigc agf->agf_freeblks = cpu_to_be32(tmpsize); 213159451Srodrigc agf->agf_longest = cpu_to_be32(tmpsize); 214153323Srodrigc error = xfs_bwrite(mp, bp); 215153323Srodrigc if (error) { 216153323Srodrigc goto error0; 217153323Srodrigc } 218153323Srodrigc /* 219153323Srodrigc * AG inode header block 220153323Srodrigc */ 221153323Srodrigc bp = xfs_buf_get(mp->m_ddev_targp, 222153323Srodrigc XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), 223153323Srodrigc XFS_FSS_TO_BB(mp, 1), 0); 224153323Srodrigc agi = XFS_BUF_TO_AGI(bp); 225153323Srodrigc memset(agi, 0, mp->m_sb.sb_sectsize); 226159451Srodrigc agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC); 227159451Srodrigc agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION); 228159451Srodrigc agi->agi_seqno = cpu_to_be32(agno); 229159451Srodrigc agi->agi_length = cpu_to_be32(agsize); 230159451Srodrigc agi->agi_count = 0; 231159451Srodrigc agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp)); 232159451Srodrigc agi->agi_level = cpu_to_be32(1); 233159451Srodrigc agi->agi_freecount = 0; 234159451Srodrigc agi->agi_newino = cpu_to_be32(NULLAGINO); 235159451Srodrigc agi->agi_dirino = cpu_to_be32(NULLAGINO); 236153323Srodrigc for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++) 237159451Srodrigc agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO); 238153323Srodrigc error = xfs_bwrite(mp, bp); 239153323Srodrigc if (error) { 240153323Srodrigc goto error0; 241153323Srodrigc } 242153323Srodrigc /* 243153323Srodrigc * BNO btree root block 244153323Srodrigc */ 245153323Srodrigc bp = xfs_buf_get(mp->m_ddev_targp, 246153323Srodrigc XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), 247153323Srodrigc BTOBB(mp->m_sb.sb_blocksize), 0); 248153323Srodrigc block = XFS_BUF_TO_SBLOCK(bp); 249153323Srodrigc memset(block, 0, mp->m_sb.sb_blocksize); 250159451Srodrigc block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC); 251159451Srodrigc block->bb_level = 0; 252159451Srodrigc block->bb_numrecs = cpu_to_be16(1); 253159451Srodrigc block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 254159451Srodrigc block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 255153323Srodrigc arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, 256153323Srodrigc block, 1, mp->m_alloc_mxr[0]); 257159451Srodrigc arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); 258159451Srodrigc arec->ar_blockcount = cpu_to_be32( 259159451Srodrigc agsize - be32_to_cpu(arec->ar_startblock)); 260153323Srodrigc error = xfs_bwrite(mp, bp); 261153323Srodrigc if (error) { 262153323Srodrigc goto error0; 263153323Srodrigc } 264153323Srodrigc /* 265153323Srodrigc * CNT btree root block 266153323Srodrigc */ 267153323Srodrigc bp = xfs_buf_get(mp->m_ddev_targp, 268153323Srodrigc XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), 269153323Srodrigc BTOBB(mp->m_sb.sb_blocksize), 0); 270153323Srodrigc block = XFS_BUF_TO_SBLOCK(bp); 271153323Srodrigc memset(block, 0, mp->m_sb.sb_blocksize); 272159451Srodrigc block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC); 273159451Srodrigc block->bb_level = 0; 274159451Srodrigc block->bb_numrecs = cpu_to_be16(1); 275159451Srodrigc block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 276159451Srodrigc block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 277153323Srodrigc arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, 278153323Srodrigc block, 1, mp->m_alloc_mxr[0]); 279159451Srodrigc arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); 280159451Srodrigc arec->ar_blockcount = cpu_to_be32( 281159451Srodrigc agsize - be32_to_cpu(arec->ar_startblock)); 282159451Srodrigc nfree += be32_to_cpu(arec->ar_blockcount); 283153323Srodrigc error = xfs_bwrite(mp, bp); 284153323Srodrigc if (error) { 285153323Srodrigc goto error0; 286153323Srodrigc } 287153323Srodrigc /* 288153323Srodrigc * INO btree root block 289153323Srodrigc */ 290153323Srodrigc bp = xfs_buf_get(mp->m_ddev_targp, 291153323Srodrigc XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), 292153323Srodrigc BTOBB(mp->m_sb.sb_blocksize), 0); 293153323Srodrigc block = XFS_BUF_TO_SBLOCK(bp); 294153323Srodrigc memset(block, 0, mp->m_sb.sb_blocksize); 295159451Srodrigc block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC); 296159451Srodrigc block->bb_level = 0; 297159451Srodrigc block->bb_numrecs = 0; 298159451Srodrigc block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 299159451Srodrigc block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 300153323Srodrigc error = xfs_bwrite(mp, bp); 301153323Srodrigc if (error) { 302153323Srodrigc goto error0; 303153323Srodrigc } 304153323Srodrigc } 305153323Srodrigc xfs_trans_agblocks_delta(tp, nfree); 306153323Srodrigc /* 307153323Srodrigc * There are new blocks in the old last a.g. 308153323Srodrigc */ 309153323Srodrigc if (new) { 310153323Srodrigc /* 311153323Srodrigc * Change the agi length. 312153323Srodrigc */ 313153323Srodrigc error = xfs_ialloc_read_agi(mp, tp, agno, &bp); 314153323Srodrigc if (error) { 315153323Srodrigc goto error0; 316153323Srodrigc } 317153323Srodrigc ASSERT(bp); 318153323Srodrigc agi = XFS_BUF_TO_AGI(bp); 319159451Srodrigc be32_add(&agi->agi_length, new); 320153323Srodrigc ASSERT(nagcount == oagcount || 321159451Srodrigc be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks); 322153323Srodrigc xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH); 323153323Srodrigc /* 324153323Srodrigc * Change agf length. 325153323Srodrigc */ 326153323Srodrigc error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp); 327153323Srodrigc if (error) { 328153323Srodrigc goto error0; 329153323Srodrigc } 330153323Srodrigc ASSERT(bp); 331153323Srodrigc agf = XFS_BUF_TO_AGF(bp); 332159451Srodrigc be32_add(&agf->agf_length, new); 333159451Srodrigc ASSERT(be32_to_cpu(agf->agf_length) == 334159451Srodrigc be32_to_cpu(agi->agi_length)); 335153323Srodrigc /* 336153323Srodrigc * Free the new space. 337153323Srodrigc */ 338153323Srodrigc error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno, 339159451Srodrigc be32_to_cpu(agf->agf_length) - new), new); 340153323Srodrigc if (error) { 341153323Srodrigc goto error0; 342153323Srodrigc } 343153323Srodrigc } 344153323Srodrigc if (nagcount > oagcount) 345153323Srodrigc xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount); 346153323Srodrigc if (nb > mp->m_sb.sb_dblocks) 347153323Srodrigc xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS, 348153323Srodrigc nb - mp->m_sb.sb_dblocks); 349153323Srodrigc if (nfree) 350153323Srodrigc xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree); 351153323Srodrigc if (dpct) 352153323Srodrigc xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct); 353153323Srodrigc error = xfs_trans_commit(tp, 0, NULL); 354153323Srodrigc if (error) { 355153323Srodrigc return error; 356153323Srodrigc } 357159451Srodrigc /* New allocation groups fully initialized, so update mount struct */ 358159451Srodrigc if (nagimax) 359159451Srodrigc mp->m_maxagi = nagimax; 360153323Srodrigc if (mp->m_sb.sb_imax_pct) { 361153323Srodrigc __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct; 362153323Srodrigc do_div(icount, 100); 363153323Srodrigc mp->m_maxicount = icount << mp->m_sb.sb_inopblog; 364153323Srodrigc } else 365153323Srodrigc mp->m_maxicount = 0; 366153323Srodrigc for (agno = 1; agno < nagcount; agno++) { 367153323Srodrigc error = xfs_read_buf(mp, mp->m_ddev_targp, 368153323Srodrigc XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), 369153323Srodrigc XFS_FSS_TO_BB(mp, 1), 0, &bp); 370153323Srodrigc if (error) { 371153323Srodrigc xfs_fs_cmn_err(CE_WARN, mp, 372153323Srodrigc "error %d reading secondary superblock for ag %d", 373153323Srodrigc error, agno); 374153323Srodrigc break; 375153323Srodrigc } 376153323Srodrigc sbp = XFS_BUF_TO_SBP(bp); 377159451Srodrigc xfs_xlatesb(sbp, &mp->m_sb, -1, XFS_SB_ALL_BITS); 378153323Srodrigc /* 379153323Srodrigc * If we get an error writing out the alternate superblocks, 380153323Srodrigc * just issue a warning and continue. The real work is 381153323Srodrigc * already done and committed. 382153323Srodrigc */ 383153323Srodrigc if (!(error = xfs_bwrite(mp, bp))) { 384153323Srodrigc continue; 385153323Srodrigc } else { 386153323Srodrigc xfs_fs_cmn_err(CE_WARN, mp, 387153323Srodrigc "write error %d updating secondary superblock for ag %d", 388153323Srodrigc error, agno); 389153323Srodrigc break; /* no point in continuing */ 390153323Srodrigc } 391153323Srodrigc } 392153323Srodrigc return 0; 393153323Srodrigc 394153323Srodrigc error0: 395153323Srodrigc xfs_trans_cancel(tp, XFS_TRANS_ABORT); 396153323Srodrigc return error; 397153323Srodrigc} 398153323Srodrigc 399153323Srodrigcstatic int 400153323Srodrigcxfs_growfs_log_private( 401153323Srodrigc xfs_mount_t *mp, /* mount point for filesystem */ 402153323Srodrigc xfs_growfs_log_t *in) /* growfs log input struct */ 403153323Srodrigc{ 404153323Srodrigc xfs_extlen_t nb; 405153323Srodrigc 406153323Srodrigc nb = in->newblocks; 407153323Srodrigc if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES)) 408153323Srodrigc return XFS_ERROR(EINVAL); 409153323Srodrigc if (nb == mp->m_sb.sb_logblocks && 410153323Srodrigc in->isint == (mp->m_sb.sb_logstart != 0)) 411153323Srodrigc return XFS_ERROR(EINVAL); 412153323Srodrigc /* 413153323Srodrigc * Moving the log is hard, need new interfaces to sync 414153323Srodrigc * the log first, hold off all activity while moving it. 415153323Srodrigc * Can have shorter or longer log in the same space, 416153323Srodrigc * or transform internal to external log or vice versa. 417153323Srodrigc */ 418153323Srodrigc return XFS_ERROR(ENOSYS); 419153323Srodrigc} 420153323Srodrigc 421153323Srodrigc/* 422153323Srodrigc * protected versions of growfs function acquire and release locks on the mount 423153323Srodrigc * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG, 424153323Srodrigc * XFS_IOC_FSGROWFSRT 425153323Srodrigc */ 426153323Srodrigc 427153323Srodrigc 428153323Srodrigcint 429153323Srodrigcxfs_growfs_data( 430153323Srodrigc xfs_mount_t *mp, 431153323Srodrigc xfs_growfs_data_t *in) 432153323Srodrigc{ 433153323Srodrigc int error; 434153323Srodrigc if (!cpsema(&mp->m_growlock)) 435153323Srodrigc return XFS_ERROR(EWOULDBLOCK); 436153323Srodrigc error = xfs_growfs_data_private(mp, in); 437153323Srodrigc vsema(&mp->m_growlock); 438153323Srodrigc return error; 439153323Srodrigc} 440153323Srodrigc 441153323Srodrigcint 442153323Srodrigcxfs_growfs_log( 443153323Srodrigc xfs_mount_t *mp, 444153323Srodrigc xfs_growfs_log_t *in) 445153323Srodrigc{ 446153323Srodrigc int error; 447153323Srodrigc if (!cpsema(&mp->m_growlock)) 448153323Srodrigc return XFS_ERROR(EWOULDBLOCK); 449153323Srodrigc error = xfs_growfs_log_private(mp, in); 450153323Srodrigc vsema(&mp->m_growlock); 451153323Srodrigc return error; 452153323Srodrigc} 453153323Srodrigc 454153323Srodrigc/* 455153323Srodrigc * exported through ioctl XFS_IOC_FSCOUNTS 456153323Srodrigc */ 457153323Srodrigc 458153323Srodrigcint 459153323Srodrigcxfs_fs_counts( 460153323Srodrigc xfs_mount_t *mp, 461153323Srodrigc xfs_fsop_counts_t *cnt) 462153323Srodrigc{ 463153323Srodrigc unsigned long s; 464153323Srodrigc 465159451Srodrigc xfs_icsb_sync_counters_lazy(mp); 466153323Srodrigc s = XFS_SB_LOCK(mp); 467153323Srodrigc cnt->freedata = mp->m_sb.sb_fdblocks; 468153323Srodrigc cnt->freertx = mp->m_sb.sb_frextents; 469153323Srodrigc cnt->freeino = mp->m_sb.sb_ifree; 470153323Srodrigc cnt->allocino = mp->m_sb.sb_icount; 471153323Srodrigc XFS_SB_UNLOCK(mp, s); 472153323Srodrigc return 0; 473153323Srodrigc} 474153323Srodrigc 475153323Srodrigc/* 476153323Srodrigc * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS 477153323Srodrigc * 478153323Srodrigc * xfs_reserve_blocks is called to set m_resblks 479153323Srodrigc * in the in-core mount table. The number of unused reserved blocks 480159451Srodrigc * is kept in m_resblks_avail. 481153323Srodrigc * 482153323Srodrigc * Reserve the requested number of blocks if available. Otherwise return 483153323Srodrigc * as many as possible to satisfy the request. The actual number 484153323Srodrigc * reserved are returned in outval 485153323Srodrigc * 486153323Srodrigc * A null inval pointer indicates that only the current reserved blocks 487153323Srodrigc * available should be returned no settings are changed. 488153323Srodrigc */ 489153323Srodrigc 490153323Srodrigcint 491153323Srodrigcxfs_reserve_blocks( 492153323Srodrigc xfs_mount_t *mp, 493153323Srodrigc __uint64_t *inval, 494153323Srodrigc xfs_fsop_resblks_t *outval) 495153323Srodrigc{ 496159451Srodrigc __int64_t lcounter, delta; 497159451Srodrigc __uint64_t request; 498159451Srodrigc unsigned long s; 499153323Srodrigc 500153323Srodrigc /* If inval is null, report current values and return */ 501153323Srodrigc 502153323Srodrigc if (inval == (__uint64_t *)NULL) { 503153323Srodrigc outval->resblks = mp->m_resblks; 504153323Srodrigc outval->resblks_avail = mp->m_resblks_avail; 505159451Srodrigc return 0; 506153323Srodrigc } 507153323Srodrigc 508153323Srodrigc request = *inval; 509153323Srodrigc s = XFS_SB_LOCK(mp); 510153323Srodrigc 511153323Srodrigc /* 512153323Srodrigc * If our previous reservation was larger than the current value, 513153323Srodrigc * then move any unused blocks back to the free pool. 514153323Srodrigc */ 515153323Srodrigc 516153323Srodrigc if (mp->m_resblks > request) { 517153323Srodrigc lcounter = mp->m_resblks_avail - request; 518153323Srodrigc if (lcounter > 0) { /* release unused blocks */ 519153323Srodrigc mp->m_sb.sb_fdblocks += lcounter; 520153323Srodrigc mp->m_resblks_avail -= lcounter; 521153323Srodrigc } 522153323Srodrigc mp->m_resblks = request; 523153323Srodrigc } else { 524153323Srodrigc delta = request - mp->m_resblks; 525159451Srodrigc lcounter = mp->m_sb.sb_fdblocks - delta; 526153323Srodrigc if (lcounter < 0) { 527153323Srodrigc /* We can't satisfy the request, just get what we can */ 528153323Srodrigc mp->m_resblks += mp->m_sb.sb_fdblocks; 529153323Srodrigc mp->m_resblks_avail += mp->m_sb.sb_fdblocks; 530153323Srodrigc mp->m_sb.sb_fdblocks = 0; 531153323Srodrigc } else { 532153323Srodrigc mp->m_sb.sb_fdblocks = lcounter; 533153323Srodrigc mp->m_resblks = request; 534153323Srodrigc mp->m_resblks_avail += delta; 535153323Srodrigc } 536153323Srodrigc } 537153323Srodrigc 538153323Srodrigc outval->resblks = mp->m_resblks; 539153323Srodrigc outval->resblks_avail = mp->m_resblks_avail; 540153323Srodrigc XFS_SB_UNLOCK(mp, s); 541159451Srodrigc return 0; 542153323Srodrigc} 543153323Srodrigc 544159451Srodrigcvoid 545159451Srodrigcxfs_fs_log_dummy(xfs_mount_t *mp) 546153323Srodrigc{ 547159451Srodrigc xfs_trans_t *tp; 548159451Srodrigc xfs_inode_t *ip; 549153323Srodrigc 550153323Srodrigc 551159451Srodrigc tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1); 552159451Srodrigc atomic_inc(&mp->m_active_trans); 553159451Srodrigc if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) { 554159451Srodrigc xfs_trans_cancel(tp, 0); 555159451Srodrigc return; 556153323Srodrigc } 557153323Srodrigc 558159451Srodrigc ip = mp->m_rootip; 559159451Srodrigc xfs_ilock(ip, XFS_ILOCK_EXCL); 560153323Srodrigc 561159451Srodrigc xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); 562159451Srodrigc xfs_trans_ihold(tp, ip); 563159451Srodrigc xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); 564159451Srodrigc xfs_trans_set_sync(tp); 565159451Srodrigc xfs_trans_commit(tp, 0, NULL); 566153323Srodrigc 567159451Srodrigc xfs_iunlock(ip, XFS_ILOCK_EXCL); 568153323Srodrigc} 569153323Srodrigc 570153323Srodrigcint 571153323Srodrigcxfs_fs_goingdown( 572153323Srodrigc xfs_mount_t *mp, 573153323Srodrigc __uint32_t inflags) 574153323Srodrigc{ 575159451Srodrigc switch (inflags) { 576159451Srodrigc case XFS_FSOP_GOING_FLAGS_DEFAULT: { 577159451Srodrigc#ifdef RMC 578159451Srodrigc struct xfs_vfs *vfsp = XFS_MTOVFS(mp); 579159451Srodrigc struct super_block *sb = freeze_bdev(vfsp->vfs_super->s_bdev); 580159451Srodrigc 581159451Srodrigc if (sb && !IS_ERR(sb)) { 582159451Srodrigc xfs_force_shutdown(mp, XFS_FORCE_UMOUNT); 583159451Srodrigc thaw_bdev(sb->s_bdev, sb); 584159451Srodrigc } 585159451Srodrigc#endif 586153323Srodrigc break; 587159451Srodrigc } 588153323Srodrigc case XFS_FSOP_GOING_FLAGS_LOGFLUSH: 589153323Srodrigc xfs_force_shutdown(mp, XFS_FORCE_UMOUNT); 590153323Srodrigc break; 591153323Srodrigc case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH: 592153323Srodrigc xfs_force_shutdown(mp, XFS_FORCE_UMOUNT|XFS_LOG_IO_ERROR); 593153323Srodrigc break; 594153323Srodrigc default: 595153323Srodrigc return XFS_ERROR(EINVAL); 596153323Srodrigc } 597153323Srodrigc 598153323Srodrigc return 0; 599153323Srodrigc} 600