mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-15 23:25:07 +00:00
c5633a72a1
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
|
|
/*
|
|
* Copyright (c) 2019, Mellanox Technologies inc. All rights reserved.
|
|
*/
|
|
|
|
#include <rdma/uverbs_std_types.h>
|
|
#include <rdma/uverbs_ioctl.h>
|
|
#include "rdma_core.h"
|
|
#include "uverbs.h"
|
|
|
|
static int UVERBS_HANDLER(UVERBS_METHOD_ASYNC_EVENT_ALLOC)(
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct ib_uobject *uobj =
|
|
uverbs_attr_get_uobject(attrs, UVERBS_METHOD_ASYNC_EVENT_ALLOC);
|
|
|
|
ib_uverbs_init_async_event_file(
|
|
container_of(uobj, struct ib_uverbs_async_event_file, uobj));
|
|
return 0;
|
|
}
|
|
|
|
static void uverbs_async_event_destroy_uobj(struct ib_uobject *uobj,
|
|
enum rdma_remove_reason why)
|
|
{
|
|
struct ib_uverbs_async_event_file *event_file =
|
|
container_of(uobj, struct ib_uverbs_async_event_file, uobj);
|
|
|
|
ib_unregister_event_handler(&event_file->event_handler);
|
|
|
|
if (why == RDMA_REMOVE_DRIVER_REMOVE)
|
|
ib_uverbs_async_handler(event_file, 0, IB_EVENT_DEVICE_FATAL,
|
|
NULL, NULL);
|
|
}
|
|
|
|
int uverbs_async_event_release(struct inode *inode, struct file *filp)
|
|
{
|
|
struct ib_uverbs_async_event_file *event_file;
|
|
struct ib_uobject *uobj = filp->private_data;
|
|
int ret;
|
|
|
|
if (!uobj)
|
|
return uverbs_uobject_fd_release(inode, filp);
|
|
|
|
event_file =
|
|
container_of(uobj, struct ib_uverbs_async_event_file, uobj);
|
|
|
|
/*
|
|
* The async event FD has to deliver IB_EVENT_DEVICE_FATAL even after
|
|
* disassociation, so cleaning the event list must only happen after
|
|
* release. The user knows it has reached the end of the event stream
|
|
* when it sees IB_EVENT_DEVICE_FATAL.
|
|
*/
|
|
uverbs_uobject_get(uobj);
|
|
ret = uverbs_uobject_fd_release(inode, filp);
|
|
ib_uverbs_free_event_queue(&event_file->ev_queue);
|
|
uverbs_uobject_put(uobj);
|
|
return ret;
|
|
}
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
UVERBS_METHOD_ASYNC_EVENT_ALLOC,
|
|
UVERBS_ATTR_FD(UVERBS_ATTR_ASYNC_EVENT_ALLOC_FD_HANDLE,
|
|
UVERBS_OBJECT_ASYNC_EVENT,
|
|
UVERBS_ACCESS_NEW,
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_OBJECT(
|
|
UVERBS_OBJECT_ASYNC_EVENT,
|
|
UVERBS_TYPE_ALLOC_FD(sizeof(struct ib_uverbs_async_event_file),
|
|
uverbs_async_event_destroy_uobj,
|
|
&uverbs_async_event_fops,
|
|
"[infinibandevent]",
|
|
O_RDONLY),
|
|
&UVERBS_METHOD(UVERBS_METHOD_ASYNC_EVENT_ALLOC));
|
|
|
|
const struct uapi_definition uverbs_def_obj_async_fd[] = {
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_ASYNC_EVENT),
|
|
{}
|
|
};
|