linux/fs/xfs/xfs_buf_mem.h

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (c) 2023-2024 Oracle.  All Rights Reserved.
 * Author: Darrick J. Wong <[email protected]>
 */
#ifndef __XFS_BUF_MEM_H__
#define __XFS_BUF_MEM_H__

#define XMBUF_BLOCKSIZE …
#define XMBUF_BLOCKSHIFT …

#ifdef CONFIG_XFS_MEMORY_BUFS
static inline bool xfs_buftarg_is_mem(const struct xfs_buftarg *btp)
{ … }

int xmbuf_alloc(struct xfs_mount *mp, const char *descr,
		struct xfs_buftarg **btpp);
void xmbuf_free(struct xfs_buftarg *btp);

int xmbuf_map_page(struct xfs_buf *bp);
void xmbuf_unmap_page(struct xfs_buf *bp);
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 …
#define xmbuf_map_page …
#define xmbuf_unmap_page …
#define xmbuf_verify_daddr …
#endif /* CONFIG_XFS_MEMORY_BUFS */

#endif /* __XFS_BUF_MEM_H__ */