forked from luck/tmp_suning_uos_patched
4d5e74bc0a
Using ilookup5 during data=ordered writeback could deadlock on I_LOCK. This saves a pointer to the inode instead. Signed-off-by: Chris Mason <chris.mason@oracle.com>
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef __BTRFS_ORDERED_DATA__
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#define __BTRFS_ORDERED_DATA__
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struct btrfs_ordered_inode_tree {
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rwlock_t lock;
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struct rb_root tree;
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};
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static inline void
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btrfs_ordered_inode_tree_init(struct btrfs_ordered_inode_tree *t)
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{
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rwlock_init(&t->lock);
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t->tree.rb_node = NULL;
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}
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int btrfs_add_ordered_inode(struct inode *inode);
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int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
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u64 *root_objectid, u64 *objectid,
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struct inode **inode);
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int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
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u64 *root_objectid, u64 *objectid,
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struct inode **inode);
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int btrfs_del_ordered_inode(struct inode *inode);
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#endif
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