From: Qiang Bai <chiang.bai@gmail.com>
To: colyli@suse.de, kent.overstreet@gmail.com
Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org,
Qiang Bai <chiang.bai@gmail.com>
Subject: [PATCH] bcache: fix cache miss's issue
Date: Sun, 27 Jun 2021 15:18:17 +0800 [thread overview]
Message-ID: <20210627071817.24296-1-chiang.bai@gmail.com> (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 <chiang.bai@gmail.com>
---
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),
--
2.31.1
next 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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