tree 2f605e19e8d44360c9eb4033adda940e9e5ab007
parent 13553e5221d6901a33b3f2157a389de085c161fe
author Josef Bacik <josef@redhat.com> 1312825575 -0400
committer Josef Bacik <josef@redhat.com> 1319051555 -0400

Btrfs: optimize how we account for space in truncate

Currently we're starting and stopping a transaction for no real reason, so kill
that and just reserve enough space as if we can truncate all in one transaction.
Also use btrfs_block_rsv_check() for our reserve to minimize the amount of space
we may have to allocate for our slack space.  Thanks,

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