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Remove avl_size field from struct avl_tree

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This field is used only by illumos mdb.  On other platforms it only
increases the struct size from 32 to 40 bytes.  For struct vdev_queue
including 13 instances of avl_tree_t size means active cache lines.

Keep the padding in user-space for now to not break the ABI.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #12290
This commit is contained in:
Alexander Motin
2021-07-01 11:32:31 -04:00
committed by GitHub
parent 490c845efe
commit b192a2c0a1
2 changed files with 3 additions and 3 deletions
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module/avl/avl.c
-2
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@@ -875,7 +875,6 @@ avl_swap(avl_tree_t *tree1, avl_tree_t *tree2)
ASSERT3P(tree1->avl_compar, ==, tree2->avl_compar);
ASSERT3U(tree1->avl_offset, ==, tree2->avl_offset);
ASSERT3U(tree1->avl_size, ==, tree2->avl_size);
temp_node = tree1->avl_root;
temp_numnodes = tree1->avl_numnodes;
@@ -903,7 +902,6 @@ avl_create(avl_tree_t *tree, int (*compar) (const void *, const void *),
tree->avl_compar = compar;
tree->avl_root = NULL;
tree->avl_numnodes = 0;
tree->avl_size = size;
tree->avl_offset = offset;
}