2f43f2dc7b
This is currently defined in source-fs.h, but main.c uses it far more than source-fs.c does. Put it in common.h instead, since it's a useful standalone type. Author: Thomas Hebb <tommyhebb@gmail.com> Pull-request: #494 Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/*
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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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/*
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* Defines and function declarations for users of the mkfs API, no internal
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* definitions.
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*/
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#ifndef __BTRFS_CONVERT_COMMON_H__
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#define __BTRFS_CONVERT_COMMON_H__
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#include "kerncompat.h"
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#include "common/extent-cache.h"
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struct btrfs_mkfs_config;
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#define SOURCE_FS_UUID_SIZE (16)
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struct btrfs_convert_context {
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u32 blocksize;
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u64 first_data_block;
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u64 block_count;
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u64 inodes_count;
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u64 free_inodes_count;
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u64 total_bytes;
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u64 free_bytes_initial;
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char *label;
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u8 fs_uuid[SOURCE_FS_UUID_SIZE];
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const struct btrfs_convert_operations *convert_ops;
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/* The accurate used space of old filesystem */
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struct cache_tree used_space;
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/* Batched ranges which must be covered by data chunks */
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struct cache_tree data_chunks;
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/* Free space which is not covered by data_chunks */
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struct cache_tree free_space;
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/*
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* Free space reserved for ENOSPC report, it's just a copy free_space.
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* But after initial calculation, free_space_initial is no longer
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* updated, so we have a good idea on how much free space we really
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* have for btrfs.
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*/
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struct cache_tree free_space_initial;
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void *fs_data;
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};
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int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg,
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struct btrfs_convert_context *cctx);
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/*
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* Represents a simple contiguous range.
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*
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* For multiple or non-contiguous ranges, use extent_cache_tree from
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* extent-cache.c
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*/
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struct simple_range {
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u64 start;
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u64 len;
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};
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/*
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* Simple range functions
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*/
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/* Get range end (exclusive) */
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static inline u64 range_end(const struct simple_range *range)
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{
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return (range->start + range->len);
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}
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#endif
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