On 1/20/20 9:09 AM, Nikolay Borisov wrote:
Having btrfs_destroy_delayed_refs call btrfs_pin_extent is problematic for making pinned extents tracking per-transaction since btrfs_trans_handle cannot be passed to btrfs_pin_extent in this context. Additionally delayed refs heads pinned in btrfs_destroy_delayed_refs are going to be handled very closely, in btrfs_destroy_pinned_extent. To enable btrfs_pin_extent to take btrfs_trans_handle simply open code it in btrfs_destroy_delayed_refs and call btrfs_error_unpin_extent_range on the range. This enables us to do less work in btrfs_destroy_pinned_extent and leaves btrfs_pin_extent being called in contexts which have a valid btrfs_trans_handle. Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx> Thanks, Josef
