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07b6403a68
Move the xfs_perag infrastructure to the libxfs files that contain all the per AG infrastructure. This helps set up for passing perags around all the code instead of bare agnos with minimal extra includes for existing files. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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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, struct xfs_trans *tp);
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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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static inline struct xfs_ag_resv *
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xfs_perag_resv(
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struct xfs_perag *pag,
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enum xfs_ag_resv_type type)
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{
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switch (type) {
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case XFS_AG_RESV_METADATA:
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return &pag->pag_meta_resv;
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case XFS_AG_RESV_RMAPBT:
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return &pag->pag_rmapbt_resv;
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default:
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return NULL;
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}
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}
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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 = { NULL };
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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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#endif /* __XFS_AG_RESV_H__ */
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