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bcache: do not subtract sectors_to_gc for bypassed IO

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Since bypassed IOs use no bucket, so do not subtract sectors_to_gc to
trigger gc thread.

Signed-off-by: tang.junhui <[email protected]>
Acked-by: Coly Li <[email protected]>
Reviewed-by: Eric Wheeler <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Cc: [email protected]
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tang Junhui 2017-09-06 14:25:53 +08:00 • committed by Jens Axboe
commit 69daf03ade
1 changed files with 3 additions and 3 deletions
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6
drivers/md/bcache/request.c
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@ -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.