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https://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
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1b1fd2c190
The optional argument to attribute 'deprecated' has been introduced in gcc 4.5, and does not build on 4.4 which is still in use. The recommended replacements are mentioned in the comment, not absolutely necessary to repeat it via the attribute. Reported-by: Amr El-Sharnoby <amr.elsharnoby@horizontechs.com> Signed-off-by: David Sterba <dsterba@suse.cz>
109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/*
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* Copyright (C) 2012 Alexander Block. 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_SEND_UTILS_H__
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#define __BTRFS_SEND_UTILS_H__
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#if BTRFS_FLAT_INCLUDES
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#include "kerncompat.h"
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#include "ctree.h"
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#include "rbtree.h"
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#else
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#include <btrfs/kerncompat.h>
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#include <btrfs/ctree.h>
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#include <btrfs/rbtree.h>
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#endif /* BTRFS_FLAT_INCLUDES */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Compatibility code for kernels < 3.12; the UUID tree is not available there
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* and we have to do the slow search. This should be deprecated someday.
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*/
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#define BTRFS_COMPAT_SEND_NO_UUID_TREE 1
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enum subvol_search_type {
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subvol_search_by_root_id,
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subvol_search_by_uuid,
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subvol_search_by_received_uuid,
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subvol_search_by_path,
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};
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struct subvol_info {
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#ifdef BTRFS_COMPAT_SEND_NO_UUID_TREE
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struct rb_node rb_root_id_node;
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struct rb_node rb_local_node;
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struct rb_node rb_received_node;
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struct rb_node rb_path_node;
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#endif
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u64 root_id;
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u8 uuid[BTRFS_UUID_SIZE];
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u8 parent_uuid[BTRFS_UUID_SIZE];
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u8 received_uuid[BTRFS_UUID_SIZE];
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u64 ctransid;
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u64 otransid;
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u64 stransid;
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u64 rtransid;
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char *path;
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};
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struct subvol_uuid_search {
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int mnt_fd;
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#ifdef BTRFS_COMPAT_SEND_NO_UUID_TREE
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int uuid_tree_existed;
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struct rb_root root_id_subvols;
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struct rb_root local_subvols;
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struct rb_root received_subvols;
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struct rb_root path_subvols;
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#endif
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};
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int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s);
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void subvol_uuid_search_finit(struct subvol_uuid_search *s);
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struct subvol_info *subvol_uuid_search(struct subvol_uuid_search *s,
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u64 root_id, const u8 *uuid, u64 transid,
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const char *path,
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enum subvol_search_type type);
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void subvol_uuid_search_add(struct subvol_uuid_search *s,
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struct subvol_info *si);
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int btrfs_subvolid_resolve(int fd, char *path, size_t path_len, u64 subvol_id);
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/*
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* DEPRECATED: the functions path_cat and path_cat3 are unsafe and should not
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* be used, use the _out variants and always check the return code.
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*/
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__attribute__((deprecated))
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char *path_cat(const char *p1, const char *p2);
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__attribute__((deprecated))
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char *path_cat3(const char *p1, const char *p2, const char *p3);
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int path_cat_out(char *out, const char *p1, const char *p2);
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int path_cat3_out(char *out, const char *p1, const char *p2, const char *p3);
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#ifdef __cplusplus
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}
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#endif
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#endif
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