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authorKeith Busch <keith.busch@intel.com>2014-06-25 21:18:12 +0400
committerJens Axboe <axboe@fb.com>2014-11-04 23:17:08 +0300
commit7c1b24503873e6cfc1d31f2e55c35358fd438351 (patch)
tree662901bd7f64313b2622dea1b8ea08c7818af94b
parenta67394790a9c52657273212647e350e36a292183 (diff)
downloadlinux-7c1b24503873e6cfc1d31f2e55c35358fd438351.tar.xz
NVMe: Skip orderly shutdown on failed devices
Rather than skipping shutdown only for devices that have been removed, skip the orderly shutdown on failed devices to avoid the long timeout handling that inevitably happens when deleting queues on such a device. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/block/nvme-core.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index c5f379f08f50..ac3694083e89 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -2567,11 +2567,14 @@ static void nvme_dev_list_remove(struct nvme_dev *dev)
static void nvme_dev_shutdown(struct nvme_dev *dev)
{
int i;
+ u32 csts = -1;
dev->initialized = 0;
nvme_dev_list_remove(dev);
- if (!dev->bar || (dev->bar && readl(&dev->bar->csts) == -1)) {
+ if (dev->bar)
+ csts = readl(&dev->bar->csts);
+ if (csts & NVME_CSTS_CFS || !(csts & NVME_CSTS_RDY)) {
for (i = dev->queue_count - 1; i >= 0; i--) {
struct nvme_queue *nvmeq = raw_nvmeq(dev, i);
nvme_suspend_queue(nvmeq);