^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2000-2005 Silicon Graphics, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include "xfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include "xfs_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include "xfs_shared.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "xfs_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "xfs_log_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "xfs_trans_resv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "xfs_sb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "xfs_mount.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "xfs_trans.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "xfs_error.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "xfs_alloc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "xfs_fsops.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "xfs_trans_space.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "xfs_log.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "xfs_ag.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "xfs_ag_resv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * growfs operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) xfs_growfs_data_private(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) xfs_mount_t *mp, /* mount point for filesystem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) xfs_growfs_data_t *in) /* growfs data input struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) xfs_buf_t *bp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) xfs_agnumber_t nagcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) xfs_agnumber_t nagimax = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) xfs_rfsblock_t nb, nb_mod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) xfs_rfsblock_t new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) xfs_agnumber_t oagcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) xfs_trans_t *tp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct aghdr_init_data id = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) nb = in->newblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (nb < mp->m_sb.sb_dblocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) error = xfs_buf_read_uncached(mp->m_ddev_targp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) XFS_FSS_TO_BB(mp, 1), 0, &bp, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) xfs_buf_relse(bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) new = nb; /* use new as a temporary here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) nb_mod = do_div(new, mp->m_sb.sb_agblocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) nagcount = new + (nb_mod != 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) nagcount--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) nb = (xfs_rfsblock_t)nagcount * mp->m_sb.sb_agblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) if (nb < mp->m_sb.sb_dblocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) new = nb - mp->m_sb.sb_dblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) oagcount = mp->m_sb.sb_agcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* allocate the new per-ag structures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (nagcount > oagcount) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) error = xfs_initialize_perag(mp, nagcount, &nagimax);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) XFS_GROWFS_SPACE_RES(mp), 0, XFS_TRANS_RESERVE, &tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * Write new AG headers to disk. Non-transactional, but need to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * written and completed prior to the growfs transaction being logged.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * To do this, we use a delayed write buffer list and wait for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * submission and IO completion of the list as a whole. This allows the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * IO subsystem to merge all the AG headers in a single AG into a single
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * IO and hide most of the latency of the IO from us.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * This also means that if we get an error whilst building the buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * list to write, we can cancel the entire list without having written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * anything.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) INIT_LIST_HEAD(&id.buffer_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) for (id.agno = nagcount - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) id.agno >= oagcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) id.agno--, new -= id.agsize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (id.agno == nagcount - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) id.agsize = nb -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) (id.agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) id.agsize = mp->m_sb.sb_agblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) error = xfs_ag_init_headers(mp, &id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) xfs_buf_delwri_cancel(&id.buffer_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) goto out_trans_cancel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) error = xfs_buf_delwri_submit(&id.buffer_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) goto out_trans_cancel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) xfs_trans_agblocks_delta(tp, id.nfree);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* If there are new blocks in the old last AG, extend it. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (new) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) error = xfs_ag_extend_space(mp, tp, &id, new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) goto out_trans_cancel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * Update changed superblock fields transactionally. These are not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * seen by the rest of the world until the transaction commit applies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * them atomically to the superblock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (nagcount > oagcount)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (nb > mp->m_sb.sb_dblocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) nb - mp->m_sb.sb_dblocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (id.nfree)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, id.nfree);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) xfs_trans_set_sync(tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) error = xfs_trans_commit(tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) /* New allocation groups fully initialized, so update mount struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) if (nagimax)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) mp->m_maxagi = nagimax;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) xfs_set_low_space_thresholds(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) mp->m_alloc_set_aside = xfs_alloc_set_aside(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * If we expanded the last AG, free the per-AG reservation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * so we can reinitialize it with the new size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) if (new) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct xfs_perag *pag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) pag = xfs_perag_get(mp, id.agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) error = xfs_ag_resv_free(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) xfs_perag_put(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * Reserve AG metadata blocks. ENOSPC here does not mean there was a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * growfs failure, just that there still isn't space for new user data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * after the grow has been run.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) error = xfs_fs_reserve_ag_blocks(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (error == -ENOSPC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) out_trans_cancel:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) xfs_trans_cancel(tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) xfs_growfs_log_private(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) xfs_mount_t *mp, /* mount point for filesystem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) xfs_growfs_log_t *in) /* growfs log input struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) xfs_extlen_t nb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) nb = in->newblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (nb == mp->m_sb.sb_logblocks &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) in->isint == (mp->m_sb.sb_logstart != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * Moving the log is hard, need new interfaces to sync
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * the log first, hold off all activity while moving it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * Can have shorter or longer log in the same space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * or transform internal to external log or vice versa.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return -ENOSYS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) xfs_growfs_imaxpct(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct xfs_mount *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) __u32 imaxpct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct xfs_trans *tp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) int dpct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) if (imaxpct > 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) XFS_GROWFS_SPACE_RES(mp), 0, XFS_TRANS_RESERVE, &tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) dpct = imaxpct - mp->m_sb.sb_imax_pct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) xfs_trans_set_sync(tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) return xfs_trans_commit(tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * protected versions of growfs function acquire and release locks on the mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * XFS_IOC_FSGROWFSRT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) xfs_growfs_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) struct xfs_mount *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct xfs_growfs_data *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (!mutex_trylock(&mp->m_growlock))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return -EWOULDBLOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /* update imaxpct separately to the physical grow of the filesystem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (in->imaxpct != mp->m_sb.sb_imax_pct) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) error = xfs_growfs_imaxpct(mp, in->imaxpct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) goto out_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (in->newblocks != mp->m_sb.sb_dblocks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) error = xfs_growfs_data_private(mp, in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) goto out_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) /* Post growfs calculations needed to reflect new state in operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (mp->m_sb.sb_imax_pct) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) do_div(icount, 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) M_IGEO(mp)->maxicount = XFS_FSB_TO_INO(mp, icount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) M_IGEO(mp)->maxicount = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /* Update secondary superblocks now the physical grow has completed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) error = xfs_update_secondary_sbs(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) out_error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * Increment the generation unconditionally, the error could be from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * updating the secondary superblocks, in which case the new size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) * is live already.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) mp->m_generation++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) mutex_unlock(&mp->m_growlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) xfs_growfs_log(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) xfs_mount_t *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) xfs_growfs_log_t *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) if (!mutex_trylock(&mp->m_growlock))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return -EWOULDBLOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) error = xfs_growfs_log_private(mp, in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) mutex_unlock(&mp->m_growlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) * exported through ioctl XFS_IOC_FSCOUNTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) xfs_fs_counts(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) xfs_mount_t *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) xfs_fsop_counts_t *cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) cnt->allocino = percpu_counter_read_positive(&mp->m_icount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) cnt->freeino = percpu_counter_read_positive(&mp->m_ifree);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) cnt->freedata = percpu_counter_read_positive(&mp->m_fdblocks) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) mp->m_alloc_set_aside;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) spin_lock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) cnt->freertx = mp->m_sb.sb_frextents;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) spin_unlock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * xfs_reserve_blocks is called to set m_resblks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * in the in-core mount table. The number of unused reserved blocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * is kept in m_resblks_avail.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * Reserve the requested number of blocks if available. Otherwise return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * as many as possible to satisfy the request. The actual number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * reserved are returned in outval
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * A null inval pointer indicates that only the current reserved blocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * available should be returned no settings are changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) xfs_reserve_blocks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) xfs_mount_t *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) uint64_t *inval,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) xfs_fsop_resblks_t *outval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) int64_t lcounter, delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) int64_t fdblks_delta = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) uint64_t request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) int64_t free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) /* If inval is null, report current values and return */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (inval == (uint64_t *)NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (!outval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) outval->resblks = mp->m_resblks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) outval->resblks_avail = mp->m_resblks_avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) request = *inval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) * With per-cpu counters, this becomes an interesting problem. we need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) * to work out if we are freeing or allocation blocks first, then we can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) * do the modification as necessary.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * We do this under the m_sb_lock so that if we are near ENOSPC, we will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * hold out any changes while we work out what to do. This means that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * the amount of free space can change while we do this, so we need to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * retry if we end up trying to reserve more space than is available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) spin_lock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * If our previous reservation was larger than the current value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) * then move any unused blocks back to the free pool. Modify the resblks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) * counters directly since we shouldn't have any problems unreserving
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) * space.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (mp->m_resblks > request) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) lcounter = mp->m_resblks_avail - request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) if (lcounter > 0) { /* release unused blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) fdblks_delta = lcounter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) mp->m_resblks_avail -= lcounter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) mp->m_resblks = request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) if (fdblks_delta) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) spin_unlock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) error = xfs_mod_fdblocks(mp, fdblks_delta, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) spin_lock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * If the request is larger than the current reservation, reserve the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * blocks before we update the reserve counters. Sample m_fdblocks and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) * perform a partial reservation if the request exceeds free space.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) error = -ENOSPC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) free = percpu_counter_sum(&mp->m_fdblocks) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) mp->m_alloc_set_aside;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if (free <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) delta = request - mp->m_resblks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) lcounter = free - delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (lcounter < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) /* We can't satisfy the request, just get what we can */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) fdblks_delta = free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) fdblks_delta = delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) * We'll either succeed in getting space from the free block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) * count or we'll get an ENOSPC. If we get a ENOSPC, it means
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) * things changed while we were calculating fdblks_delta and so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) * we should try again to see if there is anything left to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) * reserve.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) * Don't set the reserved flag here - we don't want to reserve
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) * the extra reserve blocks from the reserve.....
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) spin_unlock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) error = xfs_mod_fdblocks(mp, -fdblks_delta, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) spin_lock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) } while (error == -ENOSPC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) * Update the reserve counters if blocks have been successfully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) * allocated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) if (!error && fdblks_delta) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) mp->m_resblks += fdblks_delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) mp->m_resblks_avail += fdblks_delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (outval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) outval->resblks = mp->m_resblks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) outval->resblks_avail = mp->m_resblks_avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) spin_unlock(&mp->m_sb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) xfs_fs_goingdown(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) xfs_mount_t *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) uint32_t inflags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) switch (inflags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) case XFS_FSOP_GOING_FLAGS_DEFAULT: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (!freeze_bdev(mp->m_super->s_bdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) thaw_bdev(mp->m_super->s_bdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) case XFS_FSOP_GOING_FLAGS_LOGFLUSH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) xfs_force_shutdown(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) SHUTDOWN_FORCE_UMOUNT | SHUTDOWN_LOG_IO_ERROR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) * Force a shutdown of the filesystem instantly while keeping the filesystem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * consistent. We don't do an unmount here; just shutdown the shop, make sure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) * that absolutely nothing persistent happens to this filesystem after this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) * point.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) xfs_do_force_shutdown(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) struct xfs_mount *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) int flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) char *fname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) int lnnum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) bool logerror = flags & SHUTDOWN_LOG_IO_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * No need to duplicate efforts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) if (XFS_FORCED_SHUTDOWN(mp) && !logerror)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) * queue up anybody new on the log reservations, and wakes up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * everybody who's sleeping on log reservations to tell them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) * the bad news.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (xfs_log_force_umount(mp, logerror))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (flags & SHUTDOWN_FORCE_UMOUNT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) xfs_alert(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) "User initiated shutdown received. Shutting down filesystem");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) xfs_notice(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) "%s(0x%x) called from line %d of file %s. Return address = "PTR_FMT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) __func__, flags, lnnum, fname, __return_address);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (flags & SHUTDOWN_CORRUPT_INCORE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) "Corruption of in-memory data detected. Shutting down filesystem");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (XFS_ERRLEVEL_HIGH <= xfs_error_level)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) xfs_stack_trace();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) } else if (logerror) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) "Log I/O Error Detected. Shutting down filesystem");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) "I/O Error Detected. Shutting down filesystem");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) xfs_alert(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) "Please unmount the filesystem and rectify the problem(s)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) * Reserve free space for per-AG metadata.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) xfs_fs_reserve_ag_blocks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) struct xfs_mount *mp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) xfs_agnumber_t agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) struct xfs_perag *pag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) int err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) mp->m_finobt_nores = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) pag = xfs_perag_get(mp, agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) err2 = xfs_ag_resv_init(pag, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) xfs_perag_put(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) if (err2 && !error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) error = err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) if (error && error != -ENOSPC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) xfs_warn(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) "Error %d reserving per-AG metadata reserve pool.", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) * Free space reserved for per-AG metadata.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) xfs_fs_unreserve_ag_blocks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) struct xfs_mount *mp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) xfs_agnumber_t agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) struct xfs_perag *pag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) int err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) pag = xfs_perag_get(mp, agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) err2 = xfs_ag_resv_free(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) xfs_perag_put(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) if (err2 && !error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) error = err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) xfs_warn(mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) "Error %d freeing per-AG metadata reserve pool.", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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