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btrfs: add assertions for releasing trans handle reservations 

These are useful for debugging problems where we mess with
trans->block_rsv to make sure we're not screwing something up.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2017-09-29 15:44:05 -04:00 committed by David Sterba
parent 3b60d436a1
commit bf2681cb94
1 changed files with 4 additions and 1 deletions
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5
fs/btrfs/extent-tree.c
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@ -5823,12 +5823,15 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info)
void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info)
{
if (!trans->block_rsv)
if (!trans->block_rsv) {
ASSERT(!trans->bytes_reserved);
return;
}
if (!trans->bytes_reserved)
return;
ASSERT(trans->block_rsv == &fs_info->trans_block_rsv);
trace_btrfs_space_reservation(fs_info, "transaction",
trans->transid, trans->bytes_reserved, 0);
btrfs_block_rsv_release(fs_info, trans->block_rsv,