Commit df1b620a authored by Logan Gunthorpe's avatar Logan Gunthorpe Committed by Jens Axboe
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md/raid5: Improve debug prints 



Add a debug print for raid5_make_request() so that each request is
printed and add the logical sector number to the debug print in
__add_stripe_bio().

Signed-off-by: default avatarLogan Gunthorpe <logang@deltatee.com>
Signed-off-by: default avatarSong Liu <song@kernel.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 7e55c60a

drivers/md/raid5.c

+6 −2
Original line number Diff line number Diff line
@@ -3521,8 +3521,9 @@ static void __add_stripe_bio(struct stripe_head *sh, struct bio *bi, 
				sh->overwrite_disks++;

	}



	pr_debug("added bi b#%llu to stripe s#%llu, disk %d.\n",

		 (*bip)->bi_iter.bi_sector, sh->sector, dd_idx);

	pr_debug("added bi b#%llu to stripe s#%llu, disk %d, logical %llu\n",

		 (*bip)->bi_iter.bi_sector, sh->sector, dd_idx,

		 sh->dev[dd_idx].sector);



	if (conf->mddev->bitmap && firstwrite) {

		/* Cannot hold spinlock over bitmap_startwrite,
@@ -6094,6 +6095,9 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi) 
		   DIV_ROUND_UP_SECTOR_T(ctx.last_sector - logical_sector,

					 RAID5_STRIPE_SECTORS(conf)));



	pr_debug("raid456: %s, logical %llu to %llu\n", __func__,

		 bi->bi_iter.bi_sector, ctx.last_sector);



	/* Bail out if conflicts with reshape and REQ_NOWAIT is set */

	if ((bi->bi_opf & REQ_NOWAIT) &&

	    (conf->reshape_progress != MaxSector) &&