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e614a00117
Directly assign b_addr based on the tmpfs folios without a detour through pages, reuse the folio_put path used for non-tmpfs buffers and replace all references to pages in comments with folios. Partially based on a patch from Dave Chinner <dchinner@redhat.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Carlos Maiolino <cem@kernel.org>
32 lines
932 B
C
32 lines
932 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2023-2024 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <djwong@kernel.org>
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*/
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#ifndef __XFS_BUF_MEM_H__
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#define __XFS_BUF_MEM_H__
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#define XMBUF_BLOCKSIZE (PAGE_SIZE)
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#define XMBUF_BLOCKSHIFT (PAGE_SHIFT)
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#ifdef CONFIG_XFS_MEMORY_BUFS
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static inline bool xfs_buftarg_is_mem(const struct xfs_buftarg *btp)
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{
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return btp->bt_bdev == NULL;
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}
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int xmbuf_alloc(struct xfs_mount *mp, const char *descr,
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struct xfs_buftarg **btpp);
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void xmbuf_free(struct xfs_buftarg *btp);
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bool xmbuf_verify_daddr(struct xfs_buftarg *btp, xfs_daddr_t daddr);
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void xmbuf_trans_bdetach(struct xfs_trans *tp, struct xfs_buf *bp);
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int xmbuf_finalize(struct xfs_buf *bp);
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#else
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# define xfs_buftarg_is_mem(...) (false)
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# define xmbuf_verify_daddr(...) (false)
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#endif /* CONFIG_XFS_MEMORY_BUFS */
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int xmbuf_map_backing_mem(struct xfs_buf *bp);
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#endif /* __XFS_BUF_MEM_H__ */
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