On Thu, Feb 07, 2013 at 11:55:51PM -0700, Miao Xie wrote: > Here is the whole story: > Trans_Attach_Task Trans_Commit_Task > btrfs_commit_transaction() > |->wait writers to be 1 > btrfs_attach_transaction() | > btrfs_commit_transaction() | > | |->set trans_no_join to 1 > | | (close join transaction) > |->btrfs_run_ordered_operations | > (Those ordered operations | > are added when releasing | > file) | > |->btrfs_join_transaction() | > |->wait_commit() | > |->wait writers to be 1
I'm just dropping this patch, the way you describe this deadlock can't happen since the second btrfs_join_transaction() would see theres already a transaction in current->journal_info and use that and not do wait_commit(). If you observed a deadlock like this then look at it again, there is something else going wrong. Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
