[XFS] Use the same btree_cur union member for alloc and inobt trees.

[linux-2.6-omap-h63xx.git] / fs / xfs / xfs_btree.h

diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 892b06c542637219d46be0f67798fa0e545fd43d..1f528a2a37545d858d40577a948e56ee7699d479 100644 (file)
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -24,6 +24,8 @@ struct xfs_inode;
 struct xfs_mount;
 struct xfs_trans;
 
+extern kmem_zone_t     *xfs_btree_cur_zone;
+
 /*
  * This nonsense is to make -wlint happy.
  */
@@ -122,13 +124,13 @@ extern const __uint32_t   xfs_magics[];
  * Given block size, type prefix, block pointer, and index of requested entry
  * (first entry numbered 1).
  */
-#define        XFS_BTREE_REC_ADDR(bsz,t,bb,i,mxr)      \
+#define        XFS_BTREE_REC_ADDR(t,bb,i)      \
        ((t ## _rec_t *)((char *)(bb) + sizeof(t ## _block_t) + \
         ((i) - 1) * sizeof(t ## _rec_t)))
-#define        XFS_BTREE_KEY_ADDR(bsz,t,bb,i,mxr)      \
+#define        XFS_BTREE_KEY_ADDR(t,bb,i)      \
        ((t ## _key_t *)((char *)(bb) + sizeof(t ## _block_t) + \
         ((i) - 1) * sizeof(t ## _key_t)))
-#define        XFS_BTREE_PTR_ADDR(bsz,t,bb,i,mxr)      \
+#define        XFS_BTREE_PTR_ADDR(t,bb,i,mxr)  \
        ((t ## _ptr_t *)((char *)(bb) + sizeof(t ## _block_t) + \
         (mxr) * sizeof(t ## _key_t) + ((i) - 1) * sizeof(t ## _ptr_t)))
 
@@ -156,8 +158,8 @@ typedef struct xfs_btree_cur
        __uint8_t       bc_blocklog;    /* log2(blocksize) of btree blocks */
        xfs_btnum_t     bc_btnum;       /* identifies which btree type */
        union {
-               struct {                        /* needed for BNO, CNT */
-                       struct xfs_buf  *agbp;  /* agf buffer pointer */
+               struct {                        /* needed for BNO, CNT, INO */
+                       struct xfs_buf  *agbp;  /* agf/agi buffer pointer */
                        xfs_agnumber_t  agno;   /* ag number */
                } a;
                struct {                        /* needed for BMAP */
@@ -170,10 +172,6 @@ typedef struct xfs_btree_cur
                        char            flags;          /* flags */
 #define        XFS_BTCUR_BPRV_WASDEL   1                       /* was delayed */
                } b;
-               struct {                        /* needed for INO */
-                       struct xfs_buf  *agbp;  /* agi buffer pointer */
-                       xfs_agnumber_t  agno;   /* ag number */
-               } i;
        }               bc_private;     /* per-btree type data */
 } xfs_btree_cur_t;
 
@@ -444,30 +442,14 @@ xfs_btree_setbuf(
 /*
  * Min and max functions for extlen, agblock, fileoff, and filblks types.
  */
-#define        XFS_EXTLEN_MIN(a,b)     \
-       ((xfs_extlen_t)(a) < (xfs_extlen_t)(b) ? \
-               (xfs_extlen_t)(a) : (xfs_extlen_t)(b))
-#define        XFS_EXTLEN_MAX(a,b)     \
-       ((xfs_extlen_t)(a) > (xfs_extlen_t)(b) ? \
-               (xfs_extlen_t)(a) : (xfs_extlen_t)(b))
-#define        XFS_AGBLOCK_MIN(a,b)    \
-       ((xfs_agblock_t)(a) < (xfs_agblock_t)(b) ? \
-               (xfs_agblock_t)(a) : (xfs_agblock_t)(b))
-#define        XFS_AGBLOCK_MAX(a,b)    \
-       ((xfs_agblock_t)(a) > (xfs_agblock_t)(b) ? \
-               (xfs_agblock_t)(a) : (xfs_agblock_t)(b))
-#define        XFS_FILEOFF_MIN(a,b)    \
-       ((xfs_fileoff_t)(a) < (xfs_fileoff_t)(b) ? \
-               (xfs_fileoff_t)(a) : (xfs_fileoff_t)(b))
-#define        XFS_FILEOFF_MAX(a,b)    \
-       ((xfs_fileoff_t)(a) > (xfs_fileoff_t)(b) ? \
-               (xfs_fileoff_t)(a) : (xfs_fileoff_t)(b))
-#define        XFS_FILBLKS_MIN(a,b)    \
-       ((xfs_filblks_t)(a) < (xfs_filblks_t)(b) ? \
-               (xfs_filblks_t)(a) : (xfs_filblks_t)(b))
-#define        XFS_FILBLKS_MAX(a,b)    \
-       ((xfs_filblks_t)(a) > (xfs_filblks_t)(b) ? \
-               (xfs_filblks_t)(a) : (xfs_filblks_t)(b))
+#define        XFS_EXTLEN_MIN(a,b)     min_t(xfs_extlen_t, (a), (b))
+#define        XFS_EXTLEN_MAX(a,b)     max_t(xfs_extlen_t, (a), (b))
+#define        XFS_AGBLOCK_MIN(a,b)    min_t(xfs_agblock_t, (a), (b))
+#define        XFS_AGBLOCK_MAX(a,b)    max_t(xfs_agblock_t, (a), (b))
+#define        XFS_FILEOFF_MIN(a,b)    min_t(xfs_fileoff_t, (a), (b))
+#define        XFS_FILEOFF_MAX(a,b)    max_t(xfs_fileoff_t, (a), (b))
+#define        XFS_FILBLKS_MIN(a,b)    min_t(xfs_filblks_t, (a), (b))
+#define        XFS_FILBLKS_MAX(a,b)    max_t(xfs_filblks_t, (a), (b))
 
 #define        XFS_FSB_SANITY_CHECK(mp,fsb)    \
        (XFS_FSB_TO_AGNO(mp, fsb) < mp->m_sb.sb_agcount && \