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author | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:14:13 +0300 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:15:08 +0300 |
commit | 537c2e91d3549e5d6020bb0576cf9b54a845255f (patch) | |
tree | c09e8a1b7d733cde19b0c72678c28fb2bc97ff6b /fs/xfs/xfs_buf_mem.h | |
parent | 237bb5f7f7f55ec5f773469a974c61a49c298625 (diff) | |
parent | cba9ffdb9913dfe6be29f049ce920ce451ce7cc4 (diff) | |
download | linux-537c2e91d3549e5d6020bb0576cf9b54a845255f.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_buf_mem.h')
-rw-r--r-- | fs/xfs/xfs_buf_mem.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/fs/xfs/xfs_buf_mem.h b/fs/xfs/xfs_buf_mem.h new file mode 100644 index 000000000000..eed4a7b63232 --- /dev/null +++ b/fs/xfs/xfs_buf_mem.h @@ -0,0 +1,34 @@ +// 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); + +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(...) (false) +# define xmbuf_map_page(...) (-ENOMEM) +# define xmbuf_unmap_page(...) ((void)0) +# define xmbuf_verify_daddr(...) (false) +#endif /* CONFIG_XFS_MEMORY_BUFS */ + +#endif /* __XFS_BUF_MEM_H__ */ |