btrfs: only call inode_sub_bytes in truncate paths that care
We currently have a bunch of awkward checks to make sure we only update the inode i_bytes if we're truncating the real inode. Instead keep track of the number of bytes we need to sub in the btrfs_truncate_control, and then do the appropriate adjustment in the truncate paths that care. Reviewed-by:Filipe Manana <fdmanana@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>
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c2ddb612
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