From 6e60a3bbb45bd8b307269d6a821ee2c72d815846 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 2 Oct 2017 16:22:08 -0400 Subject: [PATCH] nbd: fix -ERESTARTSYS handling Christoph made it so that if we return'ed BLK_STS_RESOURCE whenever we got ERESTARTSYS from sending our packets we'd return BLK_STS_OK, which means we'd never requeue and just hang. We really need to return the right value from the upper layer. Fixes: fc17b6534eb8 ("blk-mq: switch ->queue_rq return value to blk_status_t") Signed-off-by: Josef Bacik Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 3684e21..883dfeb 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -820,9 +820,13 @@ static blk_status_t nbd_queue_rq(struct blk_mq_hw_ctx *hctx, * appropriate. */ ret = nbd_handle_cmd(cmd, hctx->queue_num); + if (ret < 0) + ret = BLK_STS_IOERR; + else if (!ret) + ret = BLK_STS_OK; complete(&cmd->send_complete); - return ret < 0 ? BLK_STS_IOERR : BLK_STS_OK; + return ret; } static int nbd_add_socket(struct nbd_device *nbd, unsigned long arg, -- 2.7.4