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From: Qiang Bai <>
	Qiang Bai <>
Subject: [PATCH] bcache: fix cache miss's issue
Date: Sun, 27 Jun 2021 15:18:17 +0800	[thread overview]
Message-ID: <> (raw)

when cache miss's IO was done, it needs to continue the left part of IO,
not return -EINTR. -EINTR will stop the whole btree recurse.

Signed-off-by: Qiang Bai <>
 drivers/md/bcache/request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 29c231758293..b6ff101d2611 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -914,7 +914,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	miss = bio_next_split(bio, sectors, GFP_NOIO, &s->d->bio_split);
 	/* btree_search_recurse()'s btree iterator is no good anymore */
-	ret = miss == bio ? MAP_DONE : -EINTR;
+	ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
 	cache_bio = bio_alloc_bioset(GFP_NOWAIT,
 			DIV_ROUND_UP(s->insert_bio_sectors, PAGE_SECTORS),

             reply	other threads:[~2021-06-27  7:18 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-27  7:18 Qiang Bai [this message]
2021-06-28 16:05 ` [PATCH] bcache: fix cache miss's issue Coly Li

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