nvme-pci: serialize pci resets

Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>

nvme-pci: serialize pci resets
Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
79c48ccf · Sagi Grimberg · Christoph Hellwig · bf9ae8c5 · 79c48ccf · 79c48ccf
Commit 79c48ccf authored Jan 14, 2018 by Sagi Grimberg Committed by Christoph Hellwig Jan 15, 2018
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Showing with 4 additions and 2 deletions

drivers/nvme/host/core.c drivers/nvme/host/core.c +2 -1

drivers/nvme/host/nvme.h drivers/nvme/host/nvme.h +1 -0

drivers/nvme/host/pci.c drivers/nvme/host/pci.c +1 -1

No files found.
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -95,7 +95,7 @@ int nvme_reset_ctrl(struct nvme_ctrl *ctrl)
 }
 EXPORT_SYMBOL_GPL(nvme_reset_ctrl);

-static int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
+int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
 {
 	int ret;

@@ -104,6 +104,7 @@ static int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
 		flush_work(&ctrl->reset_work);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(nvme_reset_ctrl_sync);

 static void nvme_delete_ctrl_work(struct work_struct *work)
 {

--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -394,6 +394,7 @@ int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count);
 void nvme_start_keep_alive(struct nvme_ctrl *ctrl);
 void nvme_stop_keep_alive(struct nvme_ctrl *ctrl);
 int nvme_reset_ctrl(struct nvme_ctrl *ctrl);
+int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl);
 int nvme_delete_ctrl(struct nvme_ctrl *ctrl);
 int nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl);


--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2537,7 +2537,7 @@ static void nvme_reset_prepare(struct pci_dev *pdev)
 static void nvme_reset_done(struct pci_dev *pdev)
 {
 	struct nvme_dev *dev = pci_get_drvdata(pdev);
-	nvme_reset_ctrl(&dev->ctrl);
+	nvme_reset_ctrl_sync(&dev->ctrl);
 }

 static void nvme_shutdown(struct pci_dev *pdev)