btrfs: handle U64_MAX for shrink_delalloc

Data allocations are going to want to pass in U64_MAX for flushing
space, adjust shrink_delalloc to handle this properly.

Reviewed-by: Nikolay Borisov <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Tested-by: Nikolay Borisov <[email protected]>
Signed-off-by: Josef Bacik <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>

0 files changed, 0 insertions, 0 deletions