From: Matthew Wilcox <willy@linux.intel.com>
To: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@linux.intel.com>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
Konstantin Khlebnikov <koct9i@gmail.com>,
Kirill Shutemov <kirill.shutemov@linux.intel.com>,
Jan Kara <jack@suse.com>, Neil Brown <neilb@suse.de>,
Ross Zwisler <ross.zwisler@linux.intel.com>
Subject: [PATCH v2 12/29] radix-tree: Remove restriction on multi-order entries
Date: Thu, 14 Apr 2016 10:16:33 -0400 [thread overview]
Message-ID: <1460643410-30196-13-git-send-email-willy@linux.intel.com> (raw)
In-Reply-To: <1460643410-30196-1-git-send-email-willy@linux.intel.com>
Now that sibling pointers are handled explicitly, there is no purpose
served by restricting the order to be >= RADIX_TREE_MAP_SHIFT.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
---
lib/radix-tree.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index b3364b9..6900f7b 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -483,8 +483,6 @@ int __radix_tree_create(struct radix_tree_root *root, unsigned long index,
unsigned int height, shift, offset;
int error;
- BUG_ON((0 < order) && (order < RADIX_TREE_MAP_SHIFT));
-
/* Make sure the tree is high enough. */
if (index > radix_tree_maxindex(root->height)) {
error = radix_tree_extend(root, index, order);
--
2.8.0.rc3
--
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next prev parent reply other threads:[~2016-04-14 14:16 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 14:16 [PATCH v2 00/29] Radix tree multiorder fixes Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 01/29] radix-tree: Introduce radix_tree_empty Matthew Wilcox
2016-05-03 14:24 ` Jan Kara
2016-04-14 14:16 ` [PATCH v2 02/29] radix tree test suite: Fix build Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 03/29] radix tree test suite: Add tests for radix_tree_locate_item() Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 04/29] radix tree test suite: Allow testing other fan-out values Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 05/29] radix tree test suite: keep regression test runs short Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 06/29] radix tree test suite: rebuild when headers change Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 07/29] radix-tree: remove unused looping macros Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 08/29] Introduce CONFIG_RADIX_TREE_MULTIORDER Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 09/29] radix-tree: Add missing sibling entry functionality Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 10/29] radix-tree: Fix sibling entry insertion Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 11/29] radix-tree: Fix deleting a multi-order entry through an alias Matthew Wilcox
2016-04-14 14:16 ` Matthew Wilcox [this message]
2016-04-14 14:16 ` [PATCH v2 13/29] radix-tree: Introduce radix_tree_load_root() Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 14/29] radix-tree: Fix extending the tree for multi-order entries at offset 0 Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 15/29] radix tree test suite: Start adding multiorder tests Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 16/29] radix-tree: Fix several shrinking bugs with multiorder entries Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 17/29] radix-tree: Rewrite __radix_tree_lookup Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 18/29] radix-tree: Fix multiorder BUG_ON in radix_tree_insert Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 19/29] radix-tree: add support for multi-order iterating Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 20/29] radix tree test suite: multi-order iteration test Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 21/29] radix-tree: Rewrite radix_tree_tag_set Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 22/29] radix-tree: Rewrite radix_tree_tag_clear Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 23/29] radix-tree: Rewrite radix_tree_tag_get Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 24/29] radix-tree test suite: add multi-order tag test Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 25/29] radix-tree: Fix radix_tree_create for sibling entries Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 26/29] radix-tree: Rewrite radix_tree_locate_item Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 27/29] radix-tree: Fix radix_tree_range_tag_if_tagged() for multiorder entries Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 28/29] radix-tree: Fix radix_tree_dump() for multi-order entries Matthew Wilcox
2016-04-14 14:16 ` [PATCH v2 29/29] radix-tree: Add copyright statements Matthew Wilcox
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