[PATCH 09/12] rdma: use __anon_inode_getfd

From: Christoph Hellwig
Date: Fri May 08 2020 - 11:37:08 EST


Use __anon_inode_getfd instead of opencoding the logic using
get_unused_fd_flags + anon_inode_getfile.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/infiniband/core/rdma_core.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 5128cb16bb485..541e5e06347f6 100644
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -462,30 +462,21 @@ alloc_begin_fd_uobject(const struct uverbs_api_object *obj,
if (WARN_ON(fd_type->fops->release != &uverbs_uobject_fd_release))
return ERR_PTR(-EINVAL);

- new_fd = get_unused_fd_flags(O_CLOEXEC);
- if (new_fd < 0)
- return ERR_PTR(new_fd);
-
uobj = alloc_uobj(attrs, obj);
if (IS_ERR(uobj))
- goto err_fd;
+ return uobj;

/* Note that uverbs_uobject_fd_release() is called during abort */
- filp = anon_inode_getfile(fd_type->name, fd_type->fops, NULL,
- fd_type->flags);
- if (IS_ERR(filp)) {
- uobj = ERR_CAST(filp);
+ new_fd = __anon_inode_getfd(fd_type->name, fd_type->fops, NULL,
+ fd_type->flags | O_CLOEXEC, &filp);
+ if (new_fd < 0)
goto err_uobj;
- }
uobj->object = filp;
-
uobj->id = new_fd;
return uobj;

err_uobj:
uverbs_uobject_put(uobj);
-err_fd:
- put_unused_fd(new_fd);
return uobj;
}

--
2.26.2