diff options
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 616 |
1 files changed, 616 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c new file mode 100644 index 0000000..2121305 --- /dev/null +++ b/fs/xfs/xfs_fsops.c @@ -0,0 +1,616 @@ +/* + * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 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. + * + * Further, this software is distributed without any warranty that it is + * free of the rightful claim of any third person regarding infringement + * or the like. Any license provided herein, whether implied or + * otherwise, applies only to this software file. Patent licenses, if + * any, provided herein do not apply to combinations of this program with + * other software, or any other product whatsoever. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, + * Mountain View, CA 94043, or: + * + * http://www.sgi.com + * + * For further information regarding this notice, see: + * + * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ + */ + +#include "xfs.h" +#include "xfs_macros.h" +#include "xfs_types.h" +#include "xfs_inum.h" +#include "xfs_log.h" +#include "xfs_trans.h" +#include "xfs_sb.h" +#include "xfs_dir.h" +#include "xfs_dmapi.h" +#include "xfs_mount.h" +#include "xfs_ag.h" +#include "xfs_alloc_btree.h" +#include "xfs_bmap_btree.h" +#include "xfs_ialloc_btree.h" +#include "xfs_btree.h" +#include "xfs_error.h" +#include "xfs_alloc.h" +#include "xfs_ialloc.h" +#include "xfs_fsops.h" +#include "xfs_itable.h" +#include "xfs_rw.h" +#include "xfs_refcache.h" +#include "xfs_trans_space.h" +#include "xfs_rtalloc.h" +#include "xfs_dir2.h" +#include "xfs_attr_sf.h" +#include "xfs_dir_sf.h" +#include "xfs_dir2_sf.h" +#include "xfs_dinode.h" +#include "xfs_inode.h" +#include "xfs_inode_item.h" + +/* + * File system operations + */ + +int +xfs_fs_geometry( + xfs_mount_t *mp, + xfs_fsop_geom_t *geo, + int new_version) +{ + geo->blocksize = mp->m_sb.sb_blocksize; + geo->rtextsize = mp->m_sb.sb_rextsize; + geo->agblocks = mp->m_sb.sb_agblocks; + geo->agcount = mp->m_sb.sb_agcount; + geo->logblocks = mp->m_sb.sb_logblocks; + geo->sectsize = mp->m_sb.sb_sectsize; + geo->inodesize = mp->m_sb.sb_inodesize; + geo->imaxpct = mp->m_sb.sb_imax_pct; + geo->datablocks = mp->m_sb.sb_dblocks; + geo->rtblocks = mp->m_sb.sb_rblocks; + geo->rtextents = mp->m_sb.sb_rextents; + geo->logstart = mp->m_sb.sb_logstart; + ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid)); + memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid)); + if (new_version >= 2) { + geo->sunit = mp->m_sb.sb_unit; + geo->swidth = mp->m_sb.sb_width; + } + if (new_version >= 3) { + geo->version = XFS_FSOP_GEOM_VERSION; + geo->flags = + (XFS_SB_VERSION_HASATTR(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_ATTR : 0) | + (XFS_SB_VERSION_HASNLINK(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_NLINK : 0) | + (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_QUOTA : 0) | + (XFS_SB_VERSION_HASALIGN(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_IALIGN : 0) | + (XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_DALIGN : 0) | + (XFS_SB_VERSION_HASSHARED(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_SHARED : 0) | + (XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) | + (XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) | + (XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_SECTOR : 0); + geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? + mp->m_sb.sb_logsectsize : BBSIZE; + geo->rtsectsize = mp->m_sb.sb_blocksize; + geo->dirblocksize = mp->m_dirblksize; + } + if (new_version >= 4) { + geo->flags |= + (XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_LOGV2 : 0); + geo->logsunit = mp->m_sb.sb_logsunit; + } + return 0; +} + +static int +xfs_growfs_data_private( + xfs_mount_t *mp, /* mount point for filesystem */ + xfs_growfs_data_t *in) /* growfs data input struct */ +{ + xfs_agf_t *agf; + xfs_agi_t *agi; + xfs_agnumber_t agno; + xfs_extlen_t agsize; + xfs_extlen_t tmpsize; + xfs_alloc_rec_t *arec; + xfs_btree_sblock_t *block; + xfs_buf_t *bp; + int bucket; + int dpct; + int error; + xfs_agnumber_t nagcount; + xfs_agnumber_t nagimax = 0; + xfs_rfsblock_t nb, nb_mod; + xfs_rfsblock_t new; + xfs_rfsblock_t nfree; + xfs_agnumber_t oagcount; + int pct; + xfs_sb_t *sbp; + xfs_trans_t *tp; + + nb = in->newblocks; + pct = in->imaxpct; + if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100) + return XFS_ERROR(EINVAL); + dpct = pct - mp->m_sb.sb_imax_pct; + error = xfs_read_buf(mp, mp->m_ddev_targp, + XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), + XFS_FSS_TO_BB(mp, 1), 0, &bp); + if (error) + return error; + ASSERT(bp); + xfs_buf_relse(bp); + + new = nb; /* use new as a temporary here */ + nb_mod = do_div(new, mp->m_sb.sb_agblocks); + nagcount = new + (nb_mod != 0); + if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) { + nagcount--; + nb = nagcount * mp->m_sb.sb_agblocks; + if (nb < mp->m_sb.sb_dblocks) + return XFS_ERROR(EINVAL); + } + new = nb - mp->m_sb.sb_dblocks; + oagcount = mp->m_sb.sb_agcount; + if (nagcount > oagcount) { + down_write(&mp->m_peraglock); + mp->m_perag = kmem_realloc(mp->m_perag, + sizeof(xfs_perag_t) * nagcount, + sizeof(xfs_perag_t) * oagcount, + KM_SLEEP); + memset(&mp->m_perag[oagcount], 0, + (nagcount - oagcount) * sizeof(xfs_perag_t)); + mp->m_flags |= XFS_MOUNT_32BITINODES; + nagimax = xfs_initialize_perag(mp, nagcount); + up_write(&mp->m_peraglock); + } + tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); + if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp), + XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) { + xfs_trans_cancel(tp, 0); + return error; + } + + nfree = 0; + for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) { + /* + * AG freelist header block + */ + bp = xfs_buf_get(mp->m_ddev_targp, + XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), + XFS_FSS_TO_BB(mp, 1), 0); + agf = XFS_BUF_TO_AGF(bp); + memset(agf, 0, mp->m_sb.sb_sectsize); + INT_SET(agf->agf_magicnum, ARCH_CONVERT, XFS_AGF_MAGIC); + INT_SET(agf->agf_versionnum, ARCH_CONVERT, XFS_AGF_VERSION); + INT_SET(agf->agf_seqno, ARCH_CONVERT, agno); + if (agno == nagcount - 1) + agsize = + nb - + (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks); + else + agsize = mp->m_sb.sb_agblocks; + INT_SET(agf->agf_length, ARCH_CONVERT, agsize); + INT_SET(agf->agf_roots[XFS_BTNUM_BNOi], ARCH_CONVERT, + XFS_BNO_BLOCK(mp)); + INT_SET(agf->agf_roots[XFS_BTNUM_CNTi], ARCH_CONVERT, + XFS_CNT_BLOCK(mp)); + INT_SET(agf->agf_levels[XFS_BTNUM_BNOi], ARCH_CONVERT, 1); + INT_SET(agf->agf_levels[XFS_BTNUM_CNTi], ARCH_CONVERT, 1); + agf->agf_flfirst = 0; + INT_SET(agf->agf_fllast, ARCH_CONVERT, XFS_AGFL_SIZE(mp) - 1); + agf->agf_flcount = 0; + tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp); + INT_SET(agf->agf_freeblks, ARCH_CONVERT, tmpsize); + INT_SET(agf->agf_longest, ARCH_CONVERT, tmpsize); + error = xfs_bwrite(mp, bp); + if (error) { + goto error0; + } + /* + * AG inode header block + */ + bp = xfs_buf_get(mp->m_ddev_targp, + XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), + XFS_FSS_TO_BB(mp, 1), 0); + agi = XFS_BUF_TO_AGI(bp); + memset(agi, 0, mp->m_sb.sb_sectsize); + INT_SET(agi->agi_magicnum, ARCH_CONVERT, XFS_AGI_MAGIC); + INT_SET(agi->agi_versionnum, ARCH_CONVERT, XFS_AGI_VERSION); + INT_SET(agi->agi_seqno, ARCH_CONVERT, agno); + INT_SET(agi->agi_length, ARCH_CONVERT, agsize); + agi->agi_count = 0; + INT_SET(agi->agi_root, ARCH_CONVERT, XFS_IBT_BLOCK(mp)); + INT_SET(agi->agi_level, ARCH_CONVERT, 1); + agi->agi_freecount = 0; + INT_SET(agi->agi_newino, ARCH_CONVERT, NULLAGINO); + INT_SET(agi->agi_dirino, ARCH_CONVERT, NULLAGINO); + for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++) + INT_SET(agi->agi_unlinked[bucket], ARCH_CONVERT, + NULLAGINO); + error = xfs_bwrite(mp, bp); + if (error) { + goto error0; + } + /* + * BNO btree root block + */ + bp = xfs_buf_get(mp->m_ddev_targp, + XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0); + block = XFS_BUF_TO_SBLOCK(bp); + memset(block, 0, mp->m_sb.sb_blocksize); + INT_SET(block->bb_magic, ARCH_CONVERT, XFS_ABTB_MAGIC); + block->bb_level = 0; + INT_SET(block->bb_numrecs, ARCH_CONVERT, 1); + INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK); + INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK); + arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, + block, 1, mp->m_alloc_mxr[0]); + INT_SET(arec->ar_startblock, ARCH_CONVERT, + XFS_PREALLOC_BLOCKS(mp)); + INT_SET(arec->ar_blockcount, ARCH_CONVERT, + agsize - INT_GET(arec->ar_startblock, ARCH_CONVERT)); + error = xfs_bwrite(mp, bp); + if (error) { + goto error0; + } + /* + * CNT btree root block + */ + bp = xfs_buf_get(mp->m_ddev_targp, + XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0); + block = XFS_BUF_TO_SBLOCK(bp); + memset(block, 0, mp->m_sb.sb_blocksize); + INT_SET(block->bb_magic, ARCH_CONVERT, XFS_ABTC_MAGIC); + block->bb_level = 0; + INT_SET(block->bb_numrecs, ARCH_CONVERT, 1); + INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK); + INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK); + arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, + block, 1, mp->m_alloc_mxr[0]); + INT_SET(arec->ar_startblock, ARCH_CONVERT, + XFS_PREALLOC_BLOCKS(mp)); + INT_SET(arec->ar_blockcount, ARCH_CONVERT, + agsize - INT_GET(arec->ar_startblock, ARCH_CONVERT)); + nfree += INT_GET(arec->ar_blockcount, ARCH_CONVERT); + error = xfs_bwrite(mp, bp); + if (error) { + goto error0; + } + /* + * INO btree root block + */ + bp = xfs_buf_get(mp->m_ddev_targp, + XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0); + block = XFS_BUF_TO_SBLOCK(bp); + memset(block, 0, mp->m_sb.sb_blocksize); + INT_SET(block->bb_magic, ARCH_CONVERT, XFS_IBT_MAGIC); + block->bb_level = 0; + block->bb_numrecs = 0; + INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK); + INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK); + error = xfs_bwrite(mp, bp); + if (error) { + goto error0; + } + } + xfs_trans_agblocks_delta(tp, nfree); + /* + * There are new blocks in the old last a.g. + */ + if (new) { + /* + * Change the agi length. + */ + error = xfs_ialloc_read_agi(mp, tp, agno, &bp); + if (error) { + goto error0; + } + ASSERT(bp); + agi = XFS_BUF_TO_AGI(bp); + INT_MOD(agi->agi_length, ARCH_CONVERT, new); + ASSERT(nagcount == oagcount || + INT_GET(agi->agi_length, ARCH_CONVERT) == + mp->m_sb.sb_agblocks); + xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH); + /* + * Change agf length. + */ + error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp); + if (error) { + goto error0; + } + ASSERT(bp); + agf = XFS_BUF_TO_AGF(bp); + INT_MOD(agf->agf_length, ARCH_CONVERT, new); + ASSERT(INT_GET(agf->agf_length, ARCH_CONVERT) == + INT_GET(agi->agi_length, ARCH_CONVERT)); + /* + * Free the new space. + */ + error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno, + INT_GET(agf->agf_length, ARCH_CONVERT) - new), new); + if (error) { + goto error0; + } + } + if (nagcount > oagcount) + xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount); + if (nb > mp->m_sb.sb_dblocks) + xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS, + nb - mp->m_sb.sb_dblocks); + if (nfree) + xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree); + if (dpct) + xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct); + error = xfs_trans_commit(tp, 0, NULL); + if (error) { + return error; + } + /* New allocation groups fully initialized, so update mount struct */ + if (nagimax) + mp->m_maxagi = nagimax; + if (mp->m_sb.sb_imax_pct) { + __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct; + do_div(icount, 100); + mp->m_maxicount = icount << mp->m_sb.sb_inopblog; + } else + mp->m_maxicount = 0; + for (agno = 1; agno < nagcount; agno++) { + error = xfs_read_buf(mp, mp->m_ddev_targp, + XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), + XFS_FSS_TO_BB(mp, 1), 0, &bp); + if (error) { + xfs_fs_cmn_err(CE_WARN, mp, + "error %d reading secondary superblock for ag %d", + error, agno); + break; + } + sbp = XFS_BUF_TO_SBP(bp); + xfs_xlatesb(sbp, &mp->m_sb, -1, XFS_SB_ALL_BITS); + /* + * If we get an error writing out the alternate superblocks, + * just issue a warning and continue. The real work is + * already done and committed. + */ + if (!(error = xfs_bwrite(mp, bp))) { + continue; + } else { + xfs_fs_cmn_err(CE_WARN, mp, + "write error %d updating secondary superblock for ag %d", + error, agno); + break; /* no point in continuing */ + } + } + return 0; + + error0: + xfs_trans_cancel(tp, XFS_TRANS_ABORT); + return error; +} + +static int +xfs_growfs_log_private( + xfs_mount_t *mp, /* mount point for filesystem */ + xfs_growfs_log_t *in) /* growfs log input struct */ +{ + xfs_extlen_t nb; + + nb = in->newblocks; + if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES)) + return XFS_ERROR(EINVAL); + if (nb == mp->m_sb.sb_logblocks && + in->isint == (mp->m_sb.sb_logstart != 0)) + return XFS_ERROR(EINVAL); + /* + * Moving the log is hard, need new interfaces to sync + * the log first, hold off all activity while moving it. + * Can have shorter or longer log in the same space, + * or transform internal to external log or vice versa. + */ + return XFS_ERROR(ENOSYS); +} + +/* + * protected versions of growfs function acquire and release locks on the mount + * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG, + * XFS_IOC_FSGROWFSRT + */ + + +int +xfs_growfs_data( + xfs_mount_t *mp, + xfs_growfs_data_t *in) +{ + int error; + if (!cpsema(&mp->m_growlock)) + return XFS_ERROR(EWOULDBLOCK); + error = xfs_growfs_data_private(mp, in); + vsema(&mp->m_growlock); + return error; +} + +int +xfs_growfs_log( + xfs_mount_t *mp, + xfs_growfs_log_t *in) +{ + int error; + if (!cpsema(&mp->m_growlock)) + return XFS_ERROR(EWOULDBLOCK); + error = xfs_growfs_log_private(mp, in); + vsema(&mp->m_growlock); + return error; +} + +/* + * exported through ioctl XFS_IOC_FSCOUNTS + */ + +int +xfs_fs_counts( + xfs_mount_t *mp, + xfs_fsop_counts_t *cnt) +{ + unsigned long s; + + s = XFS_SB_LOCK(mp); + cnt->freedata = mp->m_sb.sb_fdblocks; + cnt->freertx = mp->m_sb.sb_frextents; + cnt->freeino = mp->m_sb.sb_ifree; + cnt->allocino = mp->m_sb.sb_icount; + XFS_SB_UNLOCK(mp, s); + return 0; +} + +/* + * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS + * + * xfs_reserve_blocks is called to set m_resblks + * in the in-core mount table. The number of unused reserved blocks + * is kept in m_resbls_avail. + * + * Reserve the requested number of blocks if available. Otherwise return + * as many as possible to satisfy the request. The actual number + * reserved are returned in outval + * + * A null inval pointer indicates that only the current reserved blocks + * available should be returned no settings are changed. + */ + +int +xfs_reserve_blocks( + xfs_mount_t *mp, + __uint64_t *inval, + xfs_fsop_resblks_t *outval) +{ + __int64_t lcounter, delta; + __uint64_t request; + unsigned long s; + + /* If inval is null, report current values and return */ + + if (inval == (__uint64_t *)NULL) { + outval->resblks = mp->m_resblks; + outval->resblks_avail = mp->m_resblks_avail; + return(0); + } + + request = *inval; + s = XFS_SB_LOCK(mp); + + /* + * If our previous reservation was larger than the current value, + * then move any unused blocks back to the free pool. + */ + + if (mp->m_resblks > request) { + lcounter = mp->m_resblks_avail - request; + if (lcounter > 0) { /* release unused blocks */ + mp->m_sb.sb_fdblocks += lcounter; + mp->m_resblks_avail -= lcounter; + } + mp->m_resblks = request; + } else { + delta = request - mp->m_resblks; + lcounter = mp->m_sb.sb_fdblocks - delta; + if (lcounter < 0) { + /* We can't satisfy the request, just get what we can */ + mp->m_resblks += mp->m_sb.sb_fdblocks; + mp->m_resblks_avail += mp->m_sb.sb_fdblocks; + mp->m_sb.sb_fdblocks = 0; + } else { + mp->m_sb.sb_fdblocks = lcounter; + mp->m_resblks = request; + mp->m_resblks_avail += delta; + } + } + + outval->resblks = mp->m_resblks; + outval->resblks_avail = mp->m_resblks_avail; + XFS_SB_UNLOCK(mp, s); + return(0); +} + +void +xfs_fs_log_dummy(xfs_mount_t *mp) +{ + xfs_trans_t *tp; + xfs_inode_t *ip; + + + tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1); + atomic_inc(&mp->m_active_trans); + if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) { + xfs_trans_cancel(tp, 0); + return; + } + + ip = mp->m_rootip; + xfs_ilock(ip, XFS_ILOCK_EXCL); + + xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); + xfs_trans_ihold(tp, ip); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + xfs_trans_set_sync(tp); + xfs_trans_commit(tp, 0, NULL); + + xfs_iunlock(ip, XFS_ILOCK_EXCL); +} + +int +xfs_fs_goingdown( + xfs_mount_t *mp, + __uint32_t inflags) +{ + switch (inflags) { + case XFS_FSOP_GOING_FLAGS_DEFAULT: { + struct vfs *vfsp = XFS_MTOVFS(mp); + struct super_block *sb = freeze_bdev(vfsp->vfs_super->s_bdev); + + if (sb) { + xfs_force_shutdown(mp, XFS_FORCE_UMOUNT); + thaw_bdev(sb->s_bdev, sb); + } + + break; + } + case XFS_FSOP_GOING_FLAGS_LOGFLUSH: + xfs_force_shutdown(mp, XFS_FORCE_UMOUNT); + break; + case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH: + xfs_force_shutdown(mp, XFS_FORCE_UMOUNT|XFS_LOG_IO_ERROR); + break; + default: + return XFS_ERROR(EINVAL); + } + + return 0; +} |
