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| author |  Darrick J. Wong <djwong@kernel.org>
| 2024-02-22 12:43:35 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org>
| 2024-02-22 12:43:35 -0800 |
| commit | a095686a2383526d7315197e2419d84ee8470217 (patch) | |
| tree | 74db5f2d372da134dfdf3f6a46fa337b060eaee3 /fs/xfs/xfs_buf_mem.h | |
| parent | xfs: add a xfs_btree_ptrs_equal helper (diff) | |
| download | linux-a095686a2383526d7315197e2419d84ee8470217.tar.gz linux-a095686a2383526d7315197e2419d84ee8470217.tar.bz2 linux-a095686a2383526d7315197e2419d84ee8470217.zip | |
xfs: support in-memory btrees
Adapt the generic btree cursor code to be able to create a btree whose
buffers come from a (presumably in-memory) buftarg with a header block
that's specific to in-memory btrees. We'll connect this to other parts
of online scrub in the next patches.
Note that in-memory btrees always have a block size matching the system
memory page size for efficiency reasons. There are also a few things we
need to do to finalize a btree update; that's covered in the next patch.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_buf_mem.h')
| -rw-r--r-- | fs/xfs/xfs_buf_mem.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/xfs_buf_mem.h b/fs/xfs/xfs_buf_mem.h index 945f4b610998..dfb3029113ff 100644 --- a/fs/xfs/xfs_buf_mem.h +++ b/fs/xfs/xfs_buf_mem.h @@ -21,10 +21,12 @@ 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); #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__ */ |