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| author |   Sagi Grimberg <sagig@mellanox.com> | 2016-02-10 10:03:29 -0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-02-10 14:22:32 -0700 |
| commit | e439bb12e75c2807029853493fa787c6d70c763a (patch) | |
| tree | 8d3573e86cdc7116a40f21242f481ce6e80dbc63 /drivers/nvme/host/nvme.h | |
| parent | nvme: Log the ctrl device name instead of the underlying pci device name (diff) | |
| download | linux-dev-e439bb12e75c2807029853493fa787c6d70c763a.tar.xz linux-dev-e439bb12e75c2807029853493fa787c6d70c763a.zip | |
nvme/host: reference the fabric module for each bdev open callout
We don't want to be able to unload the fabric driver when we have
openened referenced to our namespaces. Thus, for each nvme_open we
take a reference on the fabric driver and put it in nvme_release.
This behavior is consistent with the scsi model.
This resolves the panic when unloading a fabric module with
mpath holders.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ian Bakshan <ianb@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 4fb5bb737868..9f77386f7d1e 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -117,6 +117,7 @@ struct nvme_ns { }; struct nvme_ctrl_ops { + struct module *module; int (*reg_read32)(struct nvme_ctrl *ctrl, u32 off, u32 *val); int (*reg_write32)(struct nvme_ctrl *ctrl, u32 off, u32 val); int (*reg_read64)(struct nvme_ctrl *ctrl, u32 off, u64 *val); |