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| author | Darrick J. Wong <djwong@kernel.org> | 2021-10-13 19:02:19 +0200 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-10-19 20:45:15 +0200 |
| commit | 7cb3efb4cfdd4f3eb1f36b0ce39254b848ff2371 (patch) | |
| tree | 251b07756be51fcb78fa909935cd2c579842d287 /fs/xfs/xfs_mount.h | |
| parent | xfs: dynamically allocate cursors based on maxlevels (diff) | |
| download | linux-7cb3efb4cfdd4f3eb1f36b0ce39254b848ff2371.tar.xz linux-7cb3efb4cfdd4f3eb1f36b0ce39254b848ff2371.zip | |
xfs: rename m_ag_maxlevels to m_allocbt_maxlevels
Years ago when XFS was thought to be much more simple, we introduced
m_ag_maxlevels to specify the maximum btree height of per-AG btrees for
a given filesystem mount. Then we observed that inode btrees don't
actually have the same height and split that off; and now we have rmap
and refcount btrees with much different geometries and separate
maxlevels variables.
The 'ag' part of the name doesn't make much sense anymore, so rename
this to m_alloc_maxlevels to reinforce that this is the maximum height
of the *free space* btrees. This sets us up for the next patch, which
will add a variable to track the maximum height of all AG btrees.
(Also take the opportunity to improve adjacent comments and fix minor
style problems.)
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index e091f3b3fa15..e4b7a8eb0d06 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -128,8 +128,8 @@ typedef struct xfs_mount { uint m_rmap_mnr[2]; /* min rmap btree records */ uint m_refc_mxr[2]; /* max refc btree records */ uint m_refc_mnr[2]; /* min refc btree records */ - uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ - uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ + uint m_alloc_maxlevels; /* max alloc btree levels */ + uint m_bm_maxlevels[2]; /* max bmap btree levels */ uint m_rmap_maxlevels; /* max rmap btree levels */ uint m_refc_maxlevels; /* max refcount btree level */ xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */ |