[XFS] implement generic xfs_btree_updkey
From: Dave Chinner <dgc@sgi.com>
Note that there are many > 80 char lines introduced due to the
xfs_btree_key casts. But the places where this happens is throw-away code
once the whole btree code gets merged into a common implementation.
The same is true for the temporary xfs_alloc_log_keys define to the new
name. All old users will be gone after a few patches.
[hch: split out from bigger patch and minor adaptions]
SGI-PV: 985583
SGI-Modid: xfs-linux-melb:xfs-kern:32193a
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Bill O'Donnell <billodo@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index b81fbf1..28c6a69 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -52,7 +52,6 @@
STATIC int xfs_alloc_rshift(xfs_btree_cur_t *, int, int *);
STATIC int xfs_alloc_split(xfs_btree_cur_t *, int, xfs_agblock_t *,
xfs_alloc_key_t *, xfs_btree_cur_t **, int *);
-STATIC int xfs_alloc_updkey(xfs_btree_cur_t *, xfs_alloc_key_t *, int);
/*
* Internal functions.
@@ -265,7 +264,7 @@
* If we deleted the leftmost entry in the block, update the
* key values above us in the tree.
*/
- if (ptr == 1 && (error = xfs_alloc_updkey(cur, lkp, level + 1)))
+ if (ptr == 1 && (error = xfs_btree_updkey(cur, (union xfs_btree_key *)lkp, level + 1)))
return error;
/*
* If the number of records remaining in the block is at least
@@ -798,7 +797,7 @@
/*
* If we inserted at the start of a block, update the parents' keys.
*/
- if (optr == 1 && (error = xfs_alloc_updkey(cur, &key, level + 1)))
+ if (optr == 1 && (error = xfs_btree_updkey(cur, (union xfs_btree_key *)&key, level + 1)))
return error;
/*
* Look to see if the longest extent in the allocation group
@@ -1068,7 +1067,7 @@
/*
* Update the parent key values of right.
*/
- if ((error = xfs_alloc_updkey(cur, rkp, level + 1)))
+ if ((error = xfs_btree_updkey(cur, (union xfs_btree_key *)rkp, level + 1)))
return error;
/*
* Slide the cursor value left one.
@@ -1354,7 +1353,7 @@
i = xfs_btree_lastrec(tcur, level);
XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
if ((error = xfs_btree_increment(tcur, level, &i)) ||
- (error = xfs_alloc_updkey(tcur, rkp, level + 1)))
+ (error = xfs_btree_updkey(tcur, (union xfs_btree_key *)rkp, level + 1)))
goto error0;
xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
*stat = 1;
@@ -1520,45 +1519,6 @@
}
/*
- * Update keys at all levels from here to the root along the cursor's path.
- */
-STATIC int /* error */
-xfs_alloc_updkey(
- xfs_btree_cur_t *cur, /* btree cursor */
- xfs_alloc_key_t *keyp, /* new key value to update to */
- int level) /* starting level for update */
-{
- int ptr; /* index of key in block */
-
- /*
- * Go up the tree from this level toward the root.
- * At each level, update the key value to the value input.
- * Stop when we reach a level where the cursor isn't pointing
- * at the first entry in the block.
- */
- for (ptr = 1; ptr == 1 && level < cur->bc_nlevels; level++) {
- xfs_alloc_block_t *block; /* btree block */
- xfs_buf_t *bp; /* buffer for block */
-#ifdef DEBUG
- int error; /* error return value */
-#endif
- xfs_alloc_key_t *kp; /* ptr to btree block keys */
-
- bp = cur->bc_bufs[level];
- block = XFS_BUF_TO_ALLOC_BLOCK(bp);
-#ifdef DEBUG
- if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
- return error;
-#endif
- ptr = cur->bc_ptrs[level];
- kp = XFS_ALLOC_KEY_ADDR(block, ptr, cur);
- *kp = *keyp;
- xfs_alloc_log_keys(cur, bp, ptr, ptr);
- }
- return 0;
-}
-
-/*
* Externally visible routines.
*/
@@ -1765,7 +1725,7 @@
key.ar_startblock = cpu_to_be32(bno);
key.ar_blockcount = cpu_to_be32(len);
- if ((error = xfs_alloc_updkey(cur, &key, 1)))
+ if ((error = xfs_btree_updkey(cur, (union xfs_btree_key *)&key, 1)))
return error;
}
return 0;