Re: [PATCH 11/13] btrfs: keep track of the root owner for relocation reads
From: David Sterba <hidden>
Date: 2021-01-11 22:26:05
On Wed, Dec 16, 2020 at 11:22:15AM -0500, Josef Bacik wrote:
quoted hunk ↗ jump to hunk
--- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c@@ -98,6 +98,7 @@ struct tree_block { u64 bytenr; }; /* Use rb_simple_node for search/insert */ struct btrfs_key key; + u64 owner; unsigned int level:8; unsigned int key_ready:1;
This would probably lead to bad packing, key is 17 bytes and placing u64 after that adds 7 bytes for proper alignment. The bitfield members following the key are aligned to a byte so it would work if owner is before key.