fs/xfs/libxfs/xfs_ag_resv.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2016 Oracle.  All Rights Reserved.
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  */
   6 #ifndef __XFS_AG_RESV_H__
   7 #define __XFS_AG_RESV_H__
   8
   9 void xfs_ag_resv_free(struct xfs_perag *pag);
  10 int xfs_ag_resv_init(struct xfs_perag *pag, struct xfs_trans *tp);
  11
  12 bool xfs_ag_resv_critical(struct xfs_perag *pag, enum xfs_ag_resv_type type);
  13 xfs_extlen_t xfs_ag_resv_needed(struct xfs_perag *pag,
  14                 enum xfs_ag_resv_type type);
  15
  16 void xfs_ag_resv_alloc_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
  17                 struct xfs_alloc_arg *args);
  18 void xfs_ag_resv_free_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
  19                 struct xfs_trans *tp, xfs_extlen_t len);
  20
  21 static inline struct xfs_ag_resv *
  22 xfs_perag_resv(
  23         struct xfs_perag        *pag,
  24         enum xfs_ag_resv_type   type)
  25 {
  26         switch (type) {
  27         case XFS_AG_RESV_METADATA:
  28                 return &pag->pag_meta_resv;
  29         case XFS_AG_RESV_RMAPBT:
  30                 return &pag->pag_rmapbt_resv;
  31         default:
  32                 return NULL;
  33         }
  34 }
  35
  36 #endif  /* __XFS_AG_RESV_H__ */