24  * we don't want to be issuing transactions from, so we need to tell the
29  * the space required, we need to set the current reservation of the ticket to
195  * tail of the log are. We need this log initialisation done before we can
234  * the CIL and we need a CIL commit to occur to free memory.
236  * To avoid this, we need to move the memory allocation outside the
289 		 * Ordered items need to be tracked but we do not wish to write  in xlog_cil_alloc_shadow_bufs()
290 		 * them. We need a logvec to track the object, but we do not  in xlog_cil_alloc_shadow_bufs()
291 		 * need an iovec or buffer to be allocated for copying data.  in xlog_cil_alloc_shadow_bufs()
301 		 * the next one is naturally aligned.  We'll need to account for  in xlog_cil_alloc_shadow_bufs()
306 		 * at this point. Hence we'll need an addition number of bytes  in xlog_cil_alloc_shadow_bufs()
324 		 * if we have no shadow buffer, or it is too small, we need to  in xlog_cil_alloc_shadow_bufs()
332 			 * same reason - we don't need to zero the data area in  in xlog_cil_alloc_shadow_bufs()
385 	 * this CIL context and so we need to pin it. If we are replacing the  in xfs_cil_prepare_item()
417  * For delayed logging, we need to hold a formatted buffer containing all the
437  * Hence what we need to do now is change the rewrite the vector array to point
588 	 * We need to take the CIL checkpoint unit reservation on the first  in xlog_cil_insert_items()
599 	 * Check if we need to steal iclog headers. atomic_read() is not a  in xlog_cil_insert_items()
606 	 * If the CIL is already at the hard limit, we might need more header  in xlog_cil_insert_items()
611 	 * This can steal more than we need, but that's OK.  in xlog_cil_insert_items()
642 		 * If we just transitioned over the soft limit, we need to  in xlog_cil_insert_items()
657 	 * We do this here so we only need to take the CIL lock once during  in xlog_cil_insert_items()
741  * case all we need to do is iop_committed processing, followed by an
745  * at the end of the AIL, the insert cursor avoids the need to walk the AIL to
956 		 * The LSN we need to pass to the log items on transaction  in xlog_cil_set_ctx_write_state()
1139  * need to account for the space used by the transaction header here as it is
1217  * the CIL. We don't need the CIL lock here because it's only needed on the
1220  * If a log item is marked with a whiteout, we do not need to write it to the
1275  * If the current sequence is the same as xc_push_seq we need to do a flush. If
1277  * flushed and we don't need to do anything - the caller will wait for it to
1289  * by memory reclaim itself. Hence we really need to run under full GFP_NOFS
1325 	 * need to throttle tasks on CIL space overruns. Wake any waiters that  in xlog_cil_push_work()
1364 	 * to detect a push that had nothing to do and therefore does not need  in xlog_cil_push_work()
1386 	 * though - we need to synchronise with previous and future commits so  in xlog_cil_push_work()
1398 	 * Hence we need to add this context to the committing context list so  in xlog_cil_push_work()
1422 	 * begin the transaction. We need to account for the space used by the  in xlog_cil_push_work()
1464 	 * need to wait on iclogs or not.  in xlog_cil_push_work()
1474 			 * iclogs older than ic_prev. Hence we only need to wait  in xlog_cil_push_work()
1482 		 * We need to issue a pre-flush so that the ordering for this  in xlog_cil_push_work()
1539  * We need to push CIL every so often so we don't cache more than we can fit in
1565 	 * If so, we don't need to take the push lock as there's nothing to do.  in xlog_cil_push_background()
1582 	 * Drop the context lock now, we can't hold that if we need to sleep  in xlog_cil_push_background()
1620  * If the caller is performing an async push, we need to ensure that the
1625  * mechanism. Hence in this case we need to pass a flag to the push work to
1648 	 * If this is an async flush request, we always need to set the  in xlog_cil_push_now()
1658 	 * there's no more work that we need to do.  in xlog_cil_push_now()
1687  * committed in the current (same) CIL checkpoint, we don't need to write either
1725  * To do this, we need to format the item, pin it in memory if required and
1727  * need to release the unused reservation for the transaction, attach the
1817  * We only need to push if we haven't already pushed the sequence number given.
1840 	 * check to see if we need to force out the current context.  in xlog_cil_force_seq()
1842 	 * so no need to deal with it here.  in xlog_cil_force_seq()
1849 	 * We need to wait for all previous sequence commits to complete  in xlog_cil_force_seq()
1904 	 * We detected a shutdown in progress. We need to trigger the log force  in xlog_cil_force_seq()