fs/btrfs/space-info.c

59  * MAKING RESERVATIONS, FLUSHING NORMALLY (non-priority)
88  * MAKING RESERVATIONS, FLUSHING HIGH PRIORITY
95  * THE FLUSHING STATES
138  *     above flushing first and then commit the transaction as the last resort.
323 	 * If we aren't flushing all things, let us overcommit up to  in calc_available_free_space()
505 		 * make sure we're flushing enough delalloc to hopefully reclaim  in shrink_delalloc()
765 	 * We may be flushing because suddenly we have less space than we had  in btrfs_calc_reclaim_metadata_size()
768 	 * appropriate pressure on the flushing state machine.  in btrfs_calc_reclaim_metadata_size()
844  * maybe_fail_all_tickets - we've exhausted our flushing, start failing tickets
846  * @space_info - the space info we were flushing
848  * We call this when we've exhausted our flushing ability and haven't made
886 		 * and send us back for another loop through the enospc flushing  in maybe_fail_all_tickets()
903 		 * We're just throwing tickets away, so more flushing may not  in maybe_fail_all_tickets()
966 		 * through the flushing state machine skip ALLOC_CHUNK_FORCE and  in btrfs_async_reclaim_metadata_space()
992  *   Space is freed from flushing delalloc in one of two ways.
1215  * handle_reserve_ticket - do the appropriate flushing and waiting for a ticket
1286  * This returns true if this flush state will go through the ordinary flushing
1304  * flush out space to make room.  It will do this by flushing delalloc if
1359 	 * the list and we will do our own flushing further down.  in __reserve_bytes()
1415  * flush out space to make room.  It will do this by flushing delalloc if