17  * bitmapped intelligence in resync:
145  * for resync bio, r1bio pointer can be retrieved from the per-bio
256 	/* resync pages array stored in the 1st bio's .bi_private */  in r1buf_pool_free()
349 	 * Wake up any possible resync thread that waits for the device  in raid_end_bio_io()
873  * 1) If resync is in progress, find the first usable disk and use it even if it
876  * 2) Now that there is no resync, loop through all disks and skipping slow
973  * either some resync/recovery, or reconfigure the array.
992  * If resync/recovery is interrupted, returns -EINTR;
1023 	 *    max resync count which allowed on current I/O barrier bucket.  in raise_barrier()
1504 	 * Continue immediately if no resync is active currently.  in raid1_write_request()
2147 				 * can only be removed when no resync is  in fix_sync_read_error()
2148 				 * active, and resync is currently active  in fix_sync_read_error()
2770 		 * only be one in raid1 resync.  in raid1_sync_request()
2808 	 * If there is non-resync activity waiting for a turn, then let it  in raid1_sync_request()
2829 	 * If we get a correctably read error during resync or recovery,  in raid1_sync_request()
2890 				 * if we are doing resync or repair. Otherwise, leave  in raid1_sync_request()
2928 			 * abort the resync.  in raid1_sync_request()
2936 		/* only resync enough to reach the next bad->good  in raid1_sync_request()
3007 		/* Send resync message */  in raid1_sync_request()
3284 	/* no resync is happening, and there is enough space  in raid1_resize()
3286 	 * We need to make sure resync covers any new space.  in raid1_resize()