79 	 * first checkpoint it is written to. Hence if it is different to the  in xlog_item_in_current_chkpt()
80 	 * current sequence, we're in a new checkpoint.  in xlog_item_in_current_chkpt()
202  * initialise the first CIL checkpoint context.
413 	 * tell in future commits whether this is the first checkpoint  in xfs_cil_prepare_item()
544  * consumed by the item. Add the space to the checkpoint ticket and calculate
546  * as well. Remove the amount of space we added to the checkpoint ticket from
568 	 * We can do this safely because the context can't checkpoint until we  in xlog_cil_insert_items()
594 	 * We need to take the CIL checkpoint unit reservation on the first  in xlog_cil_insert_items()
775 * contain the start record for the checkpoint. Otherwise this write contains
776 * the commit record for the checkpoint.
844  * Ensure that the order of log writes follows checkpoint sequence order. This
922  * Write out the commit record of a checkpoint transaction to close off a
972  * Build a checkpoint transaction header to begin the journal transaction.  We
1217 	 * For example, if we get an EFI in one checkpoint and the EFD in the  in xlog_cil_push_work()
1218 	 * next (e.g. due to log forces), we do not want the checkpoint with  in xlog_cil_push_work()
1219 	 * the EFD to be committed before the checkpoint with the EFI.  Hence  in xlog_cil_push_work()
1221 	 * that: a) the checkpoint callbacks are attached to the iclogs in the  in xlog_cil_push_work()
1248 	 * Build a checkpoint transaction header and write it to the log to  in xlog_cil_push_work()
1275 	 * releasing the commit_iclog (i.e. checkpoint has been completed and  in xlog_cil_push_work()
1282 	 * If the checkpoint spans multiple iclogs, wait for all previous iclogs  in xlog_cil_push_work()
1310 		 * checkpoint is correctly preserved down to stable storage.  in xlog_cil_push_work()
1363  * the log. The limit really is that a checkpoint can't be more than half the
1364  * log (the current checkpoint is not allowed to overwrite the previous
1365  * checkpoint), but commit latency and memory usage limit this to a smaller
1444  * checkpoint is fully flushed out of the iclogs when we finish the push. If we
1510  * committed in the current (same) CIL checkpoint, we don't need to write either
1512  * journalled atomically within this checkpoint. As we cannot remove items from
1551  * transaction to the checkpoint context so we carry the busy extents through
1552  * to checkpoint completion, and then unlock all the items in the transaction.
1597 	 * to disk. If we don't, then the CIL checkpoint can race with us and  in xlog_cil_commit()
1598 	 * we can run checkpoint completion before we've updated and unlocked  in xlog_cil_commit()
1630 	 * If the CIL is empty, make sure that any previous checkpoint that may  in xlog_cil_flush()