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authorSagi Grimberg <sagi@grimberg.me>2018-01-14 12:39:00 +0200
committerChristoph Hellwig <hch@lst.de>2018-01-15 16:20:10 +0100
commit79c48ccf2fec7c10105bd635d3bb1128167b1258 (patch)
treec8d9a3a54dddff50cb9be16ee91af01dba1f10ea /drivers/nvme
parentbf9ae8c5325c0070d0ec81a849bba8d156f65993 (diff)
nvme-pci: serialize pci resets
Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c3
-rw-r--r--drivers/nvme/host/nvme.h1
-rw-r--r--drivers/nvme/host/pci.c2
3 files changed, 4 insertions, 2 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 2fe15351ac4e..4d8f63b3c5b6 100644
--- 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)
{
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 4112fb6ce80d..77faf2049917 100644
--- 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);
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 62119078c2bf..dc9a4cf7c1d1 100644
--- 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)