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Date: Fri, 5 Jun 2015 14:54:25 +0200 From: Matias Bjørling <m@...rling.me> To: hch@...radead.org, axboe@...com, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org Cc: javier@...htnvm.io, Stephen.Bates@...s.com, keith.busch@...el.com, Matias Bjørling <m@...rling.me> Subject: [PATCH v4 3/8] null_blk: wrong capacity when bs is not 512 bytes set_capacity() sets device capacity by the number of 512 bytes sectors. null_blk calculates the number of sectors by size / bs and calls set_capacity. This leads to the wrong number of sectors when bs is not 512 bytes. Signed-off-by: Matias Bjørling <m@...rling.me> --- drivers/block/null_blk.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index 65cd61a..79972ab 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -576,8 +576,7 @@ static int null_add_dev(void) blk_queue_physical_block_size(nullb->q, bs); size = gb * 1024 * 1024 * 1024ULL; - sector_div(size, bs); - set_capacity(disk, size); + set_capacity(disk, size >> 9); disk->flags |= GENHD_FL_EXT_DEVT | GENHD_FL_SUPPRESS_PARTITION_INFO; disk->major = null_major; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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