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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 19:11:18 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 19:11:18 +0300
commit1946b91cee4fc8ae25450673e4d4f35e9b462e9e (patch)
treee9cc737943e4e7b76c01cab92f88a6c49b49dc43 /fs/xfs/xfs_mount.h
parentaf30dfa14411e9df0e69c6e46e8c6c467b88229d (diff)
downloadlinux-1946b91cee4fc8ae25450673e4d4f35e9b462e9e.tar.xz
xfs: define the on-disk refcount btree format
Start constructing the refcount btree implementation by establishing the on-disk format and everything needed to read, write, and manipulate the refcount btree blocks. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
-rw-r--r--fs/xfs/xfs_mount.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 8fab4962c4f1..0be14a76216a 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -124,10 +124,13 @@ typedef struct xfs_mount {
uint m_inobt_mnr[2]; /* min inobt btree records */
uint m_rmap_mxr[2]; /* max rmap btree records */
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_in_maxlevels; /* max inobt 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 */
uint m_alloc_set_aside; /* space we can't use */
uint m_ag_max_usable; /* max space per AG */