67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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*
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __XFS_AG_RESV_H__
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#define __XFS_AG_RESV_H__
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int xfs_ag_resv_free(struct xfs_perag *pag);
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int xfs_ag_resv_init(struct xfs_perag *pag);
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bool xfs_ag_resv_critical(struct xfs_perag *pag, enum xfs_ag_resv_type type);
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xfs_extlen_t xfs_ag_resv_needed(struct xfs_perag *pag,
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enum xfs_ag_resv_type type);
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void xfs_ag_resv_alloc_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
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struct xfs_alloc_arg *args);
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void xfs_ag_resv_free_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
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struct xfs_trans *tp, xfs_extlen_t len);
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/*
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* RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from
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* the AGFL, they are allocated one at a time and the reservation updates don't
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* require a transaction.
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*/
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static inline void
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xfs_ag_resv_rmapbt_alloc(
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struct xfs_mount *mp,
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xfs_agnumber_t agno)
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{
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struct xfs_alloc_arg args = {0};
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struct xfs_perag *pag;
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args.len = 1;
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pag = xfs_perag_get(mp, agno);
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xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args);
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xfs_perag_put(pag);
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}
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static inline void
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xfs_ag_resv_rmapbt_free(
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struct xfs_mount *mp,
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xfs_agnumber_t agno)
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{
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struct xfs_perag *pag;
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pag = xfs_perag_get(mp, agno);
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xfs_ag_resv_free_extent(pag, XFS_AG_RESV_RMAPBT, NULL, 1);
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xfs_perag_put(pag);
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}
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#endif /* __XFS_AG_RESV_H__ */
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