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| author | Jason Gunthorpe <jgg@mellanox.com> | 2018-07-04 11:32:07 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-07-09 11:26:17 -0600 |
| commit | 6a5e9c88419828a487204e35291ae4459697a9bd (patch) | |
| tree | aa34b26eb70ed3f3edcac67ba42900ff09ee5361 /drivers/infiniband/core/uverbs.h | |
| parent | c33e73af2183fb9fcd993e37abcdecc058b22d91 (diff) | |
| download | lwn-6a5e9c88419828a487204e35291ae4459697a9bd.tar.gz lwn-6a5e9c88419828a487204e35291ae4459697a9bd.zip | |
IB/uverbs: Move non driver related elements from ib_ucontext to ib_ufile
The IDR is part of the ib_ufile so all the machinery to lock it, handle
closing and disassociation rightly belongs to the ufile not the ucontext.
This changes the lifetime of that data to match the lifetime of the file
descriptor which is always strictly longer than the lifetime of the
ucontext.
We need the entire locking machinery to continue to exist after ucontext
destruction to allow us to return the destroy data after a device has been
disassociated.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/uverbs.h')
| -rw-r--r-- | drivers/infiniband/core/uverbs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index a663e2cdc3d0..8b0a8ec98ac8 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -145,6 +145,14 @@ struct ib_uverbs_file { struct list_head list; int is_closed; + /* locking the uobjects_list */ + struct mutex uobjects_lock; + struct list_head uobjects; + + /* protects cleanup process from other actions */ + struct rw_semaphore cleanup_rwsem; + enum rdma_remove_reason cleanup_reason; + struct idr idr; /* spinlock protects write access to idr */ spinlock_t idr_lock; |