xfs: correctly decrement the extent buffer index in xfs_bmap_del_extent

[pandora-kernel.git] / fs / xfs / xfs_ialloc_btree.h

diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
index 5580e25..f782ad0 100644 (file)
--- a/fs/xfs/xfs_ialloc_btree.h
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -32,14 +32,14 @@ struct xfs_mount;
 #define        XFS_IBT_MAGIC   0x49414254      /* 'IABT' */
 
 typedef        __uint64_t      xfs_inofree_t;
-#define        XFS_INODES_PER_CHUNK    (NBBY * sizeof(xfs_inofree_t))
+#define        XFS_INODES_PER_CHUNK            (NBBY * sizeof(xfs_inofree_t))
 #define        XFS_INODES_PER_CHUNK_LOG        (XFS_NBBYLOG + 3)
-#define        XFS_INOBT_ALL_FREE      ((xfs_inofree_t)-1)
+#define        XFS_INOBT_ALL_FREE              ((xfs_inofree_t)-1)
+#define        XFS_INOBT_MASK(i)               ((xfs_inofree_t)1 << (i))
 
 static inline xfs_inofree_t xfs_inobt_maskn(int i, int n)
 {
-       return (((n) >= XFS_INODES_PER_CHUNK ? \
-               (xfs_inofree_t)0 : ((xfs_inofree_t)1 << (n))) - 1) << (i);
+       return ((n >= XFS_INODES_PER_CHUNK ? 0 : XFS_INOBT_MASK(n)) - 1) << i;
 }
 
 /*
@@ -68,20 +68,6 @@ typedef struct xfs_inobt_key {
 /* btree pointer type */
 typedef __be32 xfs_inobt_ptr_t;
 
-/*
- * Bit manipulations for ir_free.
- */
-#define        XFS_INOBT_MASK(i)               ((xfs_inofree_t)1 << (i))
-#define        XFS_INOBT_IS_FREE(rp,i)         \
-               (((rp)->ir_free & XFS_INOBT_MASK(i)) != 0)
-#define        XFS_INOBT_SET_FREE(rp,i)        ((rp)->ir_free |= XFS_INOBT_MASK(i))
-#define        XFS_INOBT_CLR_FREE(rp,i)        ((rp)->ir_free &= ~XFS_INOBT_MASK(i))
-
-/*
- * Maximum number of inode btree levels.
- */
-#define        XFS_IN_MAXLEVELS(mp)            ((mp)->m_in_maxlevels)
-
 /*
  * block numbers in the AG.
  */