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| author |   Davidlohr Bueso <dave@stgolabs.net> | 2019-02-06 09:59:19 -0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-02-07 12:54:02 -0700 |
| commit | 8ea1f989aa07a095cbf4aabbf9be7c3a18ce31bf (patch) | |
| tree | bb084a30047577dd89ba2b91b96c6ec248f54759 /drivers/infiniband/hw/usnic/usnic_uiom.h | |
| parent | drivers/IB,hfi1: do not se mmap_sem (diff) | |
| download | linux-dev-8ea1f989aa07a095cbf4aabbf9be7c3a18ce31bf.tar.xz linux-dev-8ea1f989aa07a095cbf4aabbf9be7c3a18ce31bf.zip | |
drivers/IB,usnic: reduce scope of mmap_sem
usnic_uiom_get_pages() uses gup_longterm() so we cannot really get rid of
mmap_sem altogether in the driver, but we can get rid of some complexity
that mmap_sem brings with only pinned_vm. We can get rid of the wq
altogether as we no longer need to defer work to unpin pages as the
counter is now atomic. We also share the lock.
Acked-by: Parvi Kaustubhi <pkaustub@cisco.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/usnic/usnic_uiom.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.h b/drivers/infiniband/hw/usnic/usnic_uiom.h index b86a9731071b..c88cfa087e3a 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.h +++ b/drivers/infiniband/hw/usnic/usnic_uiom.h @@ -93,5 +93,4 @@ struct usnic_uiom_reg *usnic_uiom_reg_get(struct usnic_uiom_pd *pd, void usnic_uiom_reg_release(struct usnic_uiom_reg *uiomr, struct ib_ucontext *ucontext); int usnic_uiom_init(char *drv_name); -void usnic_uiom_fini(void); #endif /* USNIC_UIOM_H_ */ |