projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 3fd129b6 DW |
1 | /* |
| 2 | * Copyright (C) 2016 Oracle. All Rights Reserved. | |
| 3 | * | |
| 4 | * Author: Darrick J. Wong <[email protected]> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version 2 | |
| 9 | * of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it would be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write the Free Software Foundation, | |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 19 | */ | |
| 20 | #ifndef __XFS_AG_RESV_H__ | |
| 21 | #define __XFS_AG_RESV_H__ | |
| 22 | ||
| 23 | int xfs_ag_resv_free(struct xfs_perag *pag); | |
| 24 | int xfs_ag_resv_init(struct xfs_perag *pag); | |
| 25 | ||
| 26 | bool xfs_ag_resv_critical(struct xfs_perag *pag, enum xfs_ag_resv_type type); | |
| 27 | xfs_extlen_t xfs_ag_resv_needed(struct xfs_perag *pag, | |
| 28 | enum xfs_ag_resv_type type); | |
| 29 | ||
| 30 | void xfs_ag_resv_alloc_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type, | |
| 31 | struct xfs_alloc_arg *args); | |
| 32 | void xfs_ag_resv_free_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type, | |
| 33 | struct xfs_trans *tp, xfs_extlen_t len); | |
| 34 | ||
| 0ab32086 BF |
35 | /* |
| 36 | * RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from | |
| 37 | * the AGFL, they are allocated one at a time and the reservation updates don't | |
| 38 | * require a transaction. | |
| 39 | */ | |
| 40 | static inline void | |
| 41 | xfs_ag_resv_rmapbt_alloc( | |
| 42 | struct xfs_mount *mp, | |
| 43 | xfs_agnumber_t agno) | |
| 44 | { | |
| 45 | struct xfs_alloc_arg args = {0}; | |
| 46 | struct xfs_perag *pag; | |
| 47 | ||
| 48 | args.len = 1; | |
| 49 | pag = xfs_perag_get(mp, agno); | |
| 50 | xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args); | |
| 51 | xfs_perag_put(pag); | |
| 52 | } | |
| 53 | ||
| 54 | static inline void | |
| 55 | xfs_ag_resv_rmapbt_free( | |
| 56 | struct xfs_mount *mp, | |
| 57 | xfs_agnumber_t agno) | |
| 58 | { | |
| 59 | struct xfs_perag *pag; | |
| 60 | ||
| 61 | pag = xfs_perag_get(mp, agno); | |
| 62 | xfs_ag_resv_free_extent(pag, XFS_AG_RESV_RMAPBT, NULL, 1); | |
| 63 | xfs_perag_put(pag); | |
| 64 | } | |
| 65 | ||
| 3fd129b6 | 66 | #endif /* __XFS_AG_RESV_H__ */ |