XFS_BROOT_SIZE_ADJ is an undocumented macro which accounts for
the difference in size between the on-disk and in-core btree
root. It's much clearer to just use the newly-added
XFS_BMAP_BMDR_SPACE macro which gives us the on-disk size
directly.
In one case, we must test that the if_broot exists before
applying the macro, however.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---
diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h
index a372163..be76047 100644
--- a/fs/xfs/xfs_dinode.h
+++ b/fs/xfs/xfs_dinode.h
@@ -107,9 +107,6 @@ typedef enum xfs_dinode_fmt {
#define XFS_LITINO(mp) \
((int)(((mp)->m_sb.sb_inodesize) - sizeof(struct xfs_dinode)))
-#define XFS_BROOT_SIZE_ADJ \
- (XFS_BTREE_LBLOCK_LEN - sizeof(xfs_bmdr_block_t))
-
/*
* Inode data & attribute fork sizes, per inode.
*/
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b210224..a1a6337 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1833,8 +1833,8 @@ xfs_iroot_realloc(
np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
(int)new_size);
ifp->if_broot_bytes = (int)new_size;
- ASSERT(ifp->if_broot_bytes <=
- XFS_IFORK_SIZE(ip, whichfork) + XFS_BROOT_SIZE_ADJ);
+ ASSERT(XFS_BMAP_BMDR_SPACE(ifp->if_broot) <=
+ XFS_IFORK_SIZE(ip, whichfork));
memmove(np, op, cur_max * (uint)sizeof(xfs_dfsbno_t));
return;
}
@@ -1886,8 +1886,9 @@ xfs_iroot_realloc(
kmem_free(ifp->if_broot);
ifp->if_broot = new_broot;
ifp->if_broot_bytes = (int)new_size;
- ASSERT(ifp->if_broot_bytes <=
- XFS_IFORK_SIZE(ip, whichfork) + XFS_BROOT_SIZE_ADJ);
+ if (ifp->if_broot)
+ ASSERT(XFS_BMAP_BMDR_SPACE(ifp->if_broot) <=
+ XFS_IFORK_SIZE(ip, whichfork));
return;
}
@@ -2201,9 +2202,8 @@ xfs_iflush_fork(
if ((iip->ili_format.ilf_fields & brootflag[whichfork]) &&
(ifp->if_broot_bytes > 0)) {
ASSERT(ifp->if_broot != NULL);
- ASSERT(ifp->if_broot_bytes <=
- (XFS_IFORK_SIZE(ip, whichfork) +
- XFS_BROOT_SIZE_ADJ));
+ ASSERT(XFS_BMAP_BMDR_SPACE(ifp->if_broot) <=
+ XFS_IFORK_SIZE(ip, whichfork));
xfs_bmbt_to_bmdr(mp, ifp->if_broot, ifp->if_broot_bytes,
(xfs_bmdr_block_t *)cp,
XFS_DFORK_SIZE(dip, mp, whichfork));
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