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![Leon Romanovsky](/assets/img/avatar_default.png)
All FD object destroy implementations return 0, so declare this callback void. Link: https://lore.kernel.org/r/20201104144556.3809085-3-leon@kernel.org Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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* Copyright (c) 2019, Mellanox Technologies inc. All rights reserved.
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*/
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#include <rdma/uverbs_std_types.h>
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#include <rdma/uverbs_ioctl.h>
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#include "rdma_core.h"
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#include "uverbs.h"
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static int UVERBS_HANDLER(UVERBS_METHOD_ASYNC_EVENT_ALLOC)(
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_uobject *uobj =
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uverbs_attr_get_uobject(attrs, UVERBS_METHOD_ASYNC_EVENT_ALLOC);
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ib_uverbs_init_async_event_file(
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container_of(uobj, struct ib_uverbs_async_event_file, uobj));
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return 0;
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}
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static void uverbs_async_event_destroy_uobj(struct ib_uobject *uobj,
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enum rdma_remove_reason why)
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{
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struct ib_uverbs_async_event_file *event_file =
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container_of(uobj, struct ib_uverbs_async_event_file, uobj);
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ib_unregister_event_handler(&event_file->event_handler);
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if (why == RDMA_REMOVE_DRIVER_REMOVE)
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ib_uverbs_async_handler(event_file, 0, IB_EVENT_DEVICE_FATAL,
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NULL, NULL);
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}
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int uverbs_async_event_release(struct inode *inode, struct file *filp)
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{
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struct ib_uverbs_async_event_file *event_file;
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struct ib_uobject *uobj = filp->private_data;
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int ret;
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if (!uobj)
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return uverbs_uobject_fd_release(inode, filp);
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event_file =
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container_of(uobj, struct ib_uverbs_async_event_file, uobj);
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/*
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* The async event FD has to deliver IB_EVENT_DEVICE_FATAL even after
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* disassociation, so cleaning the event list must only happen after
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* release. The user knows it has reached the end of the event stream
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* when it sees IB_EVENT_DEVICE_FATAL.
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*/
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uverbs_uobject_get(uobj);
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ret = uverbs_uobject_fd_release(inode, filp);
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ib_uverbs_free_event_queue(&event_file->ev_queue);
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uverbs_uobject_put(uobj);
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return ret;
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}
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DECLARE_UVERBS_NAMED_METHOD(
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UVERBS_METHOD_ASYNC_EVENT_ALLOC,
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UVERBS_ATTR_FD(UVERBS_ATTR_ASYNC_EVENT_ALLOC_FD_HANDLE,
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UVERBS_OBJECT_ASYNC_EVENT,
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UVERBS_ACCESS_NEW,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(
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UVERBS_OBJECT_ASYNC_EVENT,
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UVERBS_TYPE_ALLOC_FD(sizeof(struct ib_uverbs_async_event_file),
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uverbs_async_event_destroy_uobj,
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&uverbs_async_event_fops,
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"[infinibandevent]",
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O_RDONLY),
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&UVERBS_METHOD(UVERBS_METHOD_ASYNC_EVENT_ALLOC));
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const struct uapi_definition uverbs_def_obj_async_fd[] = {
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_ASYNC_EVENT),
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{}
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};
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