| // SPDX-License-Identifier: GPL-2.0-or-later | |
| /* | |
| * Copyright (c) 2023-2024 Oracle. All Rights Reserved. | |
| * Author: Darrick J. Wong <djwong@kernel.org> | |
| */ | |
| #ifndef __XFS_BUF_MEM_H__ | |
| #define __XFS_BUF_MEM_H__ | |
| #define XMBUF_BLOCKSIZE (PAGE_SIZE) | |
| #define XMBUF_BLOCKSHIFT (PAGE_SHIFT) | |
| #ifdef CONFIG_XFS_MEMORY_BUFS | |
| static inline bool xfs_buftarg_is_mem(const struct xfs_buftarg *btp) | |
| { | |
| return btp->bt_bdev == NULL; | |
| } | |
| int xmbuf_alloc(struct xfs_mount *mp, const char *descr, | |
| struct xfs_buftarg **btpp); | |
| void xmbuf_free(struct xfs_buftarg *btp); | |
| bool xmbuf_verify_daddr(struct xfs_buftarg *btp, xfs_daddr_t daddr); | |
| void xmbuf_trans_bdetach(struct xfs_trans *tp, struct xfs_buf *bp); | |
| int xmbuf_finalize(struct xfs_buf *bp); | |
| #else | |
| # define xfs_buftarg_is_mem(...) (false) | |
| # define xmbuf_verify_daddr(...) (false) | |
| #endif /* CONFIG_XFS_MEMORY_BUFS */ | |
| int xmbuf_map_backing_mem(struct xfs_buf *bp); | |
| #endif /* __XFS_BUF_MEM_H__ */ |