| commit | d7ff00f6082c8578a26d75f2ca1aa28b8f05901e | [log] [tgz] |
|---|---|---|
| author | Josef Bacik <josef@toxicpanda.com> | Fri Mar 13 17:09:54 2020 -0400 |
| committer | David Sterba <dsterba@suse.com> | Mon Mar 23 17:03:50 2020 +0100 |
| tree | 8ebc8fb4d2ac90272ebfa310e1ea9e6e89085d2b | |
| parent | cd22a51c6650f567f297215dd7c47c3401ee7290 [diff] |
btrfs: do not readahead in build_backref_tree Here we are just searching down to the bytenr we're building the backref tree for, and all of it's paths to the roots. These bytenrs are not guaranteed to be anywhere near each other, so readahead just generates extra latency. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>