60  * | the race and the rest will wait for the winner to commit the transaction.
69  * |   The btrfs_commit_transaction() caller will do the commit work.
71  * |   Other btrfs_commit_transaction() caller will do the commit work.
79  * |  Caller is chosen to commit transaction N, and all other trans handle
153 		 * because the transaction was aborted and a commit did not  in btrfs_put_transaction()
306 	 * current transaction, and commit it. If there is no transaction, just  in join_transaction()
313 	 * JOIN_NOLOCK only happens during the transaction commit, so  in join_transaction()
353 	 * commit the transaction.  in join_transaction()
479 	/* Make sure we don't try to update the root at commit time */  in btrfs_add_dropped_root()
519 /* wait for commit against the current transaction to become unblocked
695 	 * have raced in and did an fsync() on a file which can kick a commit  in start_transaction()
699 	 * transaction and commit it, so we needn't do sb_start_intwrite().   in start_transaction()
847  * happen if the transaction commit already started but it's not yet in the
859  * It is used when we want to commit the current the transaction, but
900 /* Wait for a transaction commit to reach at least the given state. */
901 static noinline void wait_for_commit(struct btrfs_transaction *commit,  in wait_for_commit()  argument
904 	struct btrfs_fs_info *fs_info = commit->fs_info;  in wait_for_commit()
905 	u64 transid = commit->transid;  in wait_for_commit()
918 		wait_event(commit->commit_wait, commit->state >= min_state);  in wait_for_commit()
920 			btrfs_put_transaction(commit);  in wait_for_commit()
933 		commit = list_first_entry_or_null(&fs_info->trans_list,  in wait_for_commit()
936 		if (!commit || commit->transid > transid) {  in wait_for_commit()
940 		refcount_inc(&commit->use_count);  in wait_for_commit()
1155 		 * wait for it to finish - we don't want to commit a  in btrfs_write_marked_extents()
1182  * those extents are on disk for transaction or log commit.  We wait
1198 		 * left in the io tree. For a log commit, we don't remove them  in __btrfs_wait_marked_extents()
1200 		 * concurrently - we do it only at transaction commit time when  in __btrfs_wait_marked_extents()
1261  * log commit.
1499 			 * from a root nor trying to commit a log tree.  in commit_fs_roots()
1548  * Will do all needed qgroup inherit and dirty hack like switch commit
1609 	 * Now we do a simplified commit transaction, which will:  in qgroup_account_snapshot()
1610 	 * 1) commit all subvolume and extent tree  in qgroup_account_snapshot()
1616 	 * In this simplified commit, we don't really care about other trees  in qgroup_account_snapshot()
1643  * transaction commit.  This does the actual creation.
2025 	 * Wait for the current transaction commit to start and block  in btrfs_commit_transaction_async()
2036  * If there is a running transaction commit it or if it's already committing,
2037  * wait for its commit to complete. Does not start and commit a new transaction
2120 	 * scrub. If the transaction commit is being done by the relocation  in cleanup_transaction()
2122 	 * for the commit, and we end up here due to an error in the commit  in cleanup_transaction()
2187  * respective handle. This must be called after the transaction commit started
2235 	/* Stop the commit early if ->aborted is set */  in btrfs_commit_transaction()
2245 	 * We only want one transaction commit doing the flushing so we do not  in btrfs_commit_transaction()
2269 		 * will wait for the transaction to commit if it  in btrfs_commit_transaction()
2358 	 * Get the time spent on the work done by the commit thread and not  in btrfs_commit_transaction()
2359 	 * the time spent waiting on a previous commit  in btrfs_commit_transaction()
2403 	 * commit the transaction.  We could have started a join before setting  in btrfs_commit_transaction()
2432 	 * We've started the commit, clear the flag in case we were triggered to  in btrfs_commit_transaction()
2433 	 * do an async commit but somebody else started before the transaction  in btrfs_commit_transaction()
2446 	 * extents around in the middle of the commit  in btrfs_commit_transaction()
2548 	 * make sure that before we commit our superblock, no other task can  in btrfs_commit_transaction()
2549 	 * start a new transaction and commit a log tree before we commit our  in btrfs_commit_transaction()
2550 	 * superblock. Anyone trying to commit a log tree locks this mutex before  in btrfs_commit_transaction()
2643 	btrfs_warn(fs_info, "Skipping commit of aborted transaction.");  in btrfs_commit_transaction()