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Commit 3413c7f0 authored by Ankit Jain's avatar Ankit Jain
Browse files

block: ratelimit the IO errors 



In case of card is removed by low-level driver on removing
the card physically, IO errors are expected for already
queued IO requests.

Ratelimit those errors with the default ratelimit to
avoid watchdog bark issue in some cases.

Change-Id: I74403db46b5149291ef596188d24ed7353342219
Signed-off-by: default avatarAnkit Jain <jankit@codeaurora.org>
parent f3dd3310

block/blk-core.c

+5 −3
Original line number Diff line number Diff line
@@ -1999,7 +1999,8 @@ static inline int blk_partition_remap(struct bio *bio) 
		trace_block_bio_remap(bio->bi_disk->queue, bio, part_devt(p),

				bio->bi_iter.bi_sector - p->start_sect);

	} else {

		printk("%s: fail for partition %d\n", __func__, bio->bi_partno);

		printk_ratelimited("%s: fail for partition %d\n",

			__func__, bio->bi_partno);

		ret = -EIO;

	}

	rcu_read_unlock();
@@ -2051,7 +2052,7 @@ generic_make_request_checks(struct bio *bio) 


	q = bio->bi_disk->queue;

	if (unlikely(!q)) {

		printk(KERN_ERR

		printk_ratelimited(KERN_ERR

		       "generic_make_request: Trying to access "

			"nonexistent block-device %s (%Lu)\n",

			bio_devname(bio, b), (long long)bio->bi_iter.bi_sector);
@@ -2630,7 +2631,8 @@ struct request *blk_peek_request(struct request_queue *q) 
			__blk_end_request_all(rq, ret == BLKPREP_INVALID ?

					BLK_STS_TARGET : BLK_STS_IOERR);

		} else {

			printk(KERN_ERR "%s: bad return=%d\n", __func__, ret);

			printk_ratelimited(KERN_ERR "%s: bad return=%d\n",

				__func__, ret);

			break;

		}

	}