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btrfs-progs: convert: move migrate_reserved_ranges

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Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-08-23 17:43:21 +02:00
parent d44d9fb4f0
commit 0e4cabc479
1 changed files with 44 additions and 44 deletions
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88
btrfs-convert.c
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@ -610,6 +610,50 @@ static int migrate_one_reserved_range(struct btrfs_trans_handle *trans,
return ret;
}
/*
* Relocate the used ext2 data in reserved ranges
* [0,1M)
* [btrfs_sb_offset(1), +BTRFS_STRIPE_LEN)
* [btrfs_sb_offset(2), +BTRFS_STRIPE_LEN)
*/
static int migrate_reserved_ranges(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct cache_tree *used,
struct btrfs_inode_item *inode, int fd,
u64 ino, u64 total_bytes, int datacsum)
{
u64 cur_off;
u64 cur_len;
int ret = 0;
/* 0 ~ 1M */
cur_off = 0;
cur_len = 1024 * 1024;
ret = migrate_one_reserved_range(trans, root, used, inode, fd, ino,
cur_off, cur_len, datacsum);
if (ret < 0)
return ret;
/* second sb(fisrt sb is included in 0~1M) */
cur_off = btrfs_sb_offset(1);
cur_len = min(total_bytes, cur_off + BTRFS_STRIPE_LEN) - cur_off;
if (cur_off > total_bytes)
return ret;
ret = migrate_one_reserved_range(trans, root, used, inode, fd, ino,
cur_off, cur_len, datacsum);
if (ret < 0)
return ret;
/* Last sb */
cur_off = btrfs_sb_offset(2);
cur_len = min(total_bytes, cur_off + BTRFS_STRIPE_LEN) - cur_off;
if (cur_off > total_bytes)
return ret;
ret = migrate_one_reserved_range(trans, root, used, inode, fd, ino,
cur_off, cur_len, datacsum);
return ret;
}
/*
* Open Ext2fs in readonly mode, read block allocation bitmap and
* inode bitmap into memory.
@ -1459,50 +1503,6 @@ static int ext2_copy_inodes(struct btrfs_convert_context *cctx,
return ret;
}
/*
* Relocate the used ext2 data in reserved ranges
* [0,1M)
* [btrfs_sb_offset(1), +BTRFS_STRIPE_LEN)
* [btrfs_sb_offset(2), +BTRFS_STRIPE_LEN)
*/
static int migrate_reserved_ranges(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct cache_tree *used,
struct btrfs_inode_item *inode, int fd,
u64 ino, u64 total_bytes, int datacsum)
{
u64 cur_off;
u64 cur_len;
int ret = 0;
/* 0 ~ 1M */
cur_off = 0;
cur_len = 1024 * 1024;
ret = migrate_one_reserved_range(trans, root, used, inode, fd, ino,
cur_off, cur_len, datacsum);
if (ret < 0)
return ret;
/* second sb(fisrt sb is included in 0~1M) */
cur_off = btrfs_sb_offset(1);
cur_len = min(total_bytes, cur_off + BTRFS_STRIPE_LEN) - cur_off;
if (cur_off > total_bytes)
return ret;
ret = migrate_one_reserved_range(trans, root, used, inode, fd, ino,
cur_off, cur_len, datacsum);
if (ret < 0)
return ret;
/* Last sb */
cur_off = btrfs_sb_offset(2);
cur_len = min(total_bytes, cur_off + BTRFS_STRIPE_LEN) - cur_off;
if (cur_off > total_bytes)
return ret;
ret = migrate_one_reserved_range(trans, root, used, inode, fd, ino,
cur_off, cur_len, datacsum);
return ret;
}
static int wipe_reserved_ranges(struct cache_tree *tree, u64 min_stripe_size,
int ensure_size);