On 2/18/20 4:01 AM, Qu Wenruo wrote:
In the core function of relocation, build_backref_tree, it needs to
iterate all backref items of one tree block.
We don't really want to spend our code and reviewers' time to going
through tons of supportive code just for the backref walk.
Use btrfs_backref_iter infrastructure to do the loop.
The backref items look would be much more easier to read:
ret = btrfs_backref_iter_start(iter, cur->bytenr);
for (; ret == 0; ret = btrfs_backref_iter_next(iter)) {
/* The really important work */
}
Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Thanks,
Josef
