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65 lines
1.6 KiB
65 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright (C) 2017-2020 Junjiro R. Okajima |
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* |
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* This program, aufs is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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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 |
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* GNU 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 License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/* |
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* helpers for hlist_bl.h |
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*/ |
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#ifndef __AUFS_HBL_H__ |
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#define __AUFS_HBL_H__ |
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#ifdef __KERNEL__ |
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#include <linux/list_bl.h> |
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static inline void au_hbl_add(struct hlist_bl_node *node, |
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struct hlist_bl_head *hbl) |
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{ |
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hlist_bl_lock(hbl); |
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hlist_bl_add_head(node, hbl); |
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hlist_bl_unlock(hbl); |
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} |
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static inline void au_hbl_del(struct hlist_bl_node *node, |
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struct hlist_bl_head *hbl) |
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{ |
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hlist_bl_lock(hbl); |
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hlist_bl_del(node); |
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hlist_bl_unlock(hbl); |
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} |
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#define au_hbl_for_each(pos, head) \ |
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for (pos = hlist_bl_first(head); \ |
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pos; \ |
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pos = pos->next) |
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static inline unsigned long au_hbl_count(struct hlist_bl_head *hbl) |
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{ |
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unsigned long cnt; |
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struct hlist_bl_node *pos; |
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cnt = 0; |
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hlist_bl_lock(hbl); |
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au_hbl_for_each(pos, hbl) |
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cnt++; |
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hlist_bl_unlock(hbl); |
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return cnt; |
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} |
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#endif /* __KERNEL__ */ |
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#endif /* __AUFS_HBL_H__ */
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