tree 3175872760ac769cde046b3ac43900fc42856bb8
parent 3880a1b46d87a6b030c31889875befc745d95dff
author Josef Bacik <josef@redhat.com> 1318954548 -0400
committer Josef Bacik <josef@redhat.com> 1319051579 -0400

Btrfs: seperate out btrfs_block_rsv_check out into 2 different functions

Currently btrfs_block_rsv_check does 2 things, it will either refill a block
reserve like in the truncate or refill case, or it will check to see if there is
enough space in the global reserve and possibly refill it.  However because of
overcommit we could be well overcommitting ourselves just to try and refill the
global reserve, when really we should just be committing the transaction.  So
breack this out into btrfs_block_rsv_refill and btrfs_block_rsv_check.  Refill
will try to reserve more metadata if it can and btrfs_block_rsv_check will not,
it will only tell you if the factor of the total space is still reserved.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>