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LinuxKPI: stub anon_inode_getfile

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Although drm-kmod contains better implementation which is able to
allocate real entries on pseudofs, this feature has never been used.

Starting from drm-kmod v5.6 old implementation began to leak entries
on each drm device close(). Now just drop pseudofs support instead of
fixing it in drm-kmod and provide stub in base.

Reviewed by:	hselasky, manu
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D32069
This commit is contained in:
Vladimir Kondratyev 2021-09-29 23:13:53 +03:00
parent f6823dac8f
commit bd6d55adb4
1 changed files with 48 additions and 0 deletions
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48
sys/compat/linuxkpi/common/include/linux/anon_inodes.h Normal file
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2021 Vladimir Kondratyev <wulf@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _LINUX_ANON_INODES_H_
#define _LINUX_ANON_INODES_H_
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/types.h>
static inline struct file *
anon_inode_getfile(const char *name __unused,
const struct file_operations *fops, void *priv, int flags __unused)
{
struct file *file;
file = alloc_file(FMODE_READ, fops);
file->private_data = priv;
return (file);
}
#endif /* _LINUX_ANON_INODES_H_ */