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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 11:36:07 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 11:36:07 +1000 |
| commit | 035e00acb5c719bd003639b90716a7e94e023b73 (patch) | |
| tree | bf4db815b139e959b9ecc06e35f4c1c8ddcb68ca /fs/xfs/libxfs/xfs_btree.h | |
| parent | 673930c34a4500c616cf9b2bbe1ae131ead2e155 (diff) | |
| download | linux-035e00acb5c719bd003639b90716a7e94e023b73.tar.bz2 | |
xfs: define the on-disk rmap btree format
Originally-From: Dave Chinner <dchinner@redhat.com>
Now we have all the surrounding call infrastructure in place, we can
start filling out the rmap btree implementation. Start with the
on-disk btree format; add everything needed to read, write and
manipulate rmap btree blocks. This prepares the way for adding the
btree operations implementation.
[darrick: record owner and offset info in rmap btree]
[darrick: fork, bmbt and unwritten state in rmap btree]
[darrick: flags are a separate field in xfs_rmap_irec]
[darrick: calculate maxlevels separately]
[darrick: move the 'unwritten' bit into unused parts of rm_offset]
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.h | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h index a480947f094b..573d3a0c5797 100644 --- a/fs/xfs/libxfs/xfs_btree.h +++ b/fs/xfs/libxfs/xfs_btree.h @@ -38,10 +38,11 @@ union xfs_btree_ptr { }; union xfs_btree_key { - xfs_bmbt_key_t bmbt; - xfs_bmdr_key_t bmbr; /* bmbt root block */ - xfs_alloc_key_t alloc; - xfs_inobt_key_t inobt; + struct xfs_bmbt_key bmbt; + xfs_bmdr_key_t bmbr; /* bmbt root block */ + xfs_alloc_key_t alloc; + struct xfs_inobt_key inobt; + struct xfs_rmap_key rmap; }; /* @@ -56,13 +57,18 @@ union xfs_btree_bigkey { xfs_bmdr_key_t bmbr; /* bmbt root block */ xfs_alloc_key_t alloc; struct xfs_inobt_key inobt; + struct { + struct xfs_rmap_key rmap; + struct xfs_rmap_key rmap_hi; + }; }; union xfs_btree_rec { - xfs_bmbt_rec_t bmbt; - xfs_bmdr_rec_t bmbr; /* bmbt root block */ - xfs_alloc_rec_t alloc; - xfs_inobt_rec_t inobt; + struct xfs_bmbt_rec bmbt; + xfs_bmdr_rec_t bmbr; /* bmbt root block */ + struct xfs_alloc_rec alloc; + struct xfs_inobt_rec inobt; + struct xfs_rmap_rec rmap; }; /* |