From: Jens Axboe <axboe@kernel.dk>
Date: Mon, 1 Jun 2020 10:02:01 -0600
Subject: [PATCH] block: mark bio_wouldblock_error() bio with BIO_QUIET
Git-commit: abb30460bda232f304f642510adc8c6576ea51ea
Patch-mainline: v5.8-rc1
References: bsc#1175995,jsc#SLE-15608

We really don't care about triggering buffer errors for this condition.
This avoids a spew of:

Buffer I/O error on dev sdc, logical block 785929, async page read
Buffer I/O error on dev sdc, logical block 759095, async page read
Buffer I/O error on dev sdc, logical block 766922, async page read
Buffer I/O error on dev sdc, logical block 17659, async page read
Buffer I/O error on dev sdc, logical block 637571, async page read
Buffer I/O error on dev sdc, logical block 39241, async page read
Buffer I/O error on dev sdc, logical block 397241, async page read
Buffer I/O error on dev sdc, logical block 763992, async page read

from -EAGAIN conditions on request allocation for async reads.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 include/linux/bio.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 941378ec5b39..683ff5fd8871 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -417,6 +417,7 @@ static inline void bio_io_error(struct bio *bio)
 
 static inline void bio_wouldblock_error(struct bio *bio)
 {
+	bio_set_flag(bio, BIO_QUIET);
 	bio->bi_status = BLK_STS_AGAIN;
 	bio_endio(bio);
 }
-- 
2.16.4