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List: linux-block
Subject: [PATCH 03/19] bcache: do not subtract sectors_to_gc for bypassed IO
From: bcache () lists ! ewheeler ! net
Date: 2017-06-30 20:42:52
Message-ID: 1498855388-16990-3-git-send-email-bcache () lists ! ewheeler ! net
[Download RAW message or body]
From: Tang Junhui <tang.junhui@zte.com.cn>
Since bypassed IOs use no bucket, so do not subtract sectors_to_gc to
trigger gc thread.
Signed-off-by: tang.junhui <tang.junhui@zte.com.cn>
Reviewed-by: Eric Wheeler <bcache@linux.ewheeler.net>
Cc: stable@vger.kernel.org
---
drivers/md/bcache/request.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 958072a..4b413db 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -196,12 +196,12 @@ static void bch_data_insert_start(struct closure *cl)
struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
struct bio *bio = op->bio, *n;
- if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0)
- wake_up_gc(op->c);
-
if (op->bypass)
return bch_data_invalidate(cl);
+ if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0)
+ wake_up_gc(op->c);
+
/*
* Journal writes are marked REQ_PREFLUSH; if the original write was a
* flush, it'll wait on the journal write.
--
1.8.3.1
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