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authorMax Gurtovoy <maxg@mellanox.com>2018-02-28 14:12:39 +0300
committerJens Axboe <axboe@kernel.dk>2018-03-26 17:53:43 +0300
commit9bad0404ecd7594265cef04e176adeaa4ffbca4a (patch)
treeb4c86f3537a09bb6236bf26c2f24ea44de16d9ff /drivers/nvme
parenta3dd7d0022c347207ae931c753a6dc3e6e8fcbc1 (diff)
downloadlinux-9bad0404ecd7594265cef04e176adeaa4ffbca4a.tar.xz
nvme-rdma: Don't flush delete_wq by default during remove_one
The .remove_one function is called for any ib_device removal. In case the removed device has no reference in our driver, there is no need to flush the work queue. Reviewed-by: Israel Rukshin <israelr@mellanox.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/rdma.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index f5f460b8045c..250b2778bb97 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -2024,6 +2024,20 @@ static struct nvmf_transport_ops nvme_rdma_transport = {
static void nvme_rdma_remove_one(struct ib_device *ib_device, void *client_data)
{
struct nvme_rdma_ctrl *ctrl;
+ struct nvme_rdma_device *ndev;
+ bool found = false;
+
+ mutex_lock(&device_list_mutex);
+ list_for_each_entry(ndev, &device_list, entry) {
+ if (ndev->dev == ib_device) {
+ found = true;
+ break;
+ }
+ }
+ mutex_unlock(&device_list_mutex);
+
+ if (!found)
+ return;
/* Delete all controllers using this device */
mutex_lock(&nvme_rdma_ctrl_mutex);