53 строки
1.4 KiB
C
53 строки
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Oracle. All Rights Reserved.
|
|
* Author: Darrick J. Wong <darrick.wong@oracle.com>
|
|
*/
|
|
#ifndef __XFS_AG_RESV_H__
|
|
#define __XFS_AG_RESV_H__
|
|
|
|
int xfs_ag_resv_free(struct xfs_perag *pag);
|
|
int xfs_ag_resv_init(struct xfs_perag *pag, struct xfs_trans *tp);
|
|
|
|
bool xfs_ag_resv_critical(struct xfs_perag *pag, enum xfs_ag_resv_type type);
|
|
xfs_extlen_t xfs_ag_resv_needed(struct xfs_perag *pag,
|
|
enum xfs_ag_resv_type type);
|
|
|
|
void xfs_ag_resv_alloc_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
|
|
struct xfs_alloc_arg *args);
|
|
void xfs_ag_resv_free_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
|
|
struct xfs_trans *tp, xfs_extlen_t len);
|
|
|
|
/*
|
|
* RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from
|
|
* the AGFL, they are allocated one at a time and the reservation updates don't
|
|
* require a transaction.
|
|
*/
|
|
static inline void
|
|
xfs_ag_resv_rmapbt_alloc(
|
|
struct xfs_mount *mp,
|
|
xfs_agnumber_t agno)
|
|
{
|
|
struct xfs_alloc_arg args = { NULL };
|
|
struct xfs_perag *pag;
|
|
|
|
args.len = 1;
|
|
pag = xfs_perag_get(mp, agno);
|
|
xfs_ag_resv_alloc_extent(pag, XFS_AG_RESV_RMAPBT, &args);
|
|
xfs_perag_put(pag);
|
|
}
|
|
|
|
static inline void
|
|
xfs_ag_resv_rmapbt_free(
|
|
struct xfs_mount *mp,
|
|
xfs_agnumber_t agno)
|
|
{
|
|
struct xfs_perag *pag;
|
|
|
|
pag = xfs_perag_get(mp, agno);
|
|
xfs_ag_resv_free_extent(pag, XFS_AG_RESV_RMAPBT, NULL, 1);
|
|
xfs_perag_put(pag);
|
|
}
|
|
|
|
#endif /* __XFS_AG_RESV_H__ */
|