diff options
author | Ingo Molnar <mingo@elte.hu> | 2011-08-04 09:09:27 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2011-08-04 09:09:27 +0200 |
commit | d7619fe39d9769b4d4545cc511c891deea18ae08 (patch) | |
tree | 0a902533414001075b2245825e145cc2e35ce985 /fs/btrfs/ref-cache.c | |
parent | 9ea71503a8ed9184d2d0b8ccc4d269d05f7940ae (diff) | |
parent | ed8f37370d83e695c0a4fa5d5fc7a83ecb947526 (diff) |
Merge branch 'linus' into core/urgent
Diffstat (limited to 'fs/btrfs/ref-cache.c')
-rw-r--r-- | fs/btrfs/ref-cache.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/fs/btrfs/ref-cache.c b/fs/btrfs/ref-cache.c deleted file mode 100644 index 82d569cb626..00000000000 --- a/fs/btrfs/ref-cache.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright (C) 2008 Oracle. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License v2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - */ - -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/sort.h> -#include "ctree.h" -#include "ref-cache.h" -#include "transaction.h" - -static struct rb_node *tree_insert(struct rb_root *root, u64 bytenr, - struct rb_node *node) -{ - struct rb_node **p = &root->rb_node; - struct rb_node *parent = NULL; - struct btrfs_leaf_ref *entry; - - while (*p) { - parent = *p; - entry = rb_entry(parent, struct btrfs_leaf_ref, rb_node); - - if (bytenr < entry->bytenr) - p = &(*p)->rb_left; - else if (bytenr > entry->bytenr) - p = &(*p)->rb_right; - else - return parent; - } - - entry = rb_entry(node, struct btrfs_leaf_ref, rb_node); - rb_link_node(node, parent, p); - rb_insert_color(node, root); - return NULL; -} - -static struct rb_node *tree_search(struct rb_root *root, u64 bytenr) -{ - struct rb_node *n = root->rb_node; - struct btrfs_leaf_ref *entry; - - while (n) { - entry = rb_entry(n, struct btrfs_leaf_ref, rb_node); - WARN_ON(!entry->in_tree); - - if (bytenr < entry->bytenr) - n = n->rb_left; - else if (bytenr > entry->bytenr) - n = n->rb_right; - else - return n; - } - return NULL; -} |