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mars/kernel/compat.h

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infa: introduce wrapper layer for compatibiliy with multiple kernels This is needed for adaptation of the out-of-tree MARS version to multiple kernel versions. It will be much simplified after upstream merging, and/or removed/replaced by something better.
2015-08-26 07:29:55 +00:00
/*
* MARS Long Distance Replication Software
*
* This file is part of MARS project: http://schoebel.github.io/mars/
*
* Copyright (C) 2010-2014 Thomas Schoebel-Theuer
* Copyright (C) 2011-2014 1&1 Internet AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _MARS_COMPAT
#define _MARS_COMPAT
#include <linux/major.h>
/* TRANSITIONAL compatibility to BOTH the old prepatch
* and the new wrappers around vfs_*().
*/
#ifdef MARS_MAJOR
all: unify HAS_ naming conventions
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#define MARS_HAS_PREPATCH
infa: introduce wrapper layer for compatibiliy with multiple kernels This is needed for adaptation of the out-of-tree MARS version to multiple kernel versions. It will be much simplified after upstream merging, and/or removed/replaced by something better.
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#else
#define MARS_MAJOR (DRBD_MAJOR + 1)
#endif
all: unify HAS_ naming conventions
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#ifdef MARS_HAS_PREPATCH
infa: introduce wrapper layer for compatibiliy with multiple kernels This is needed for adaptation of the out-of-tree MARS version to multiple kernel versions. It will be much simplified after upstream merging, and/or removed/replaced by something better.
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#include <linux/syscalls.h>
all: unify HAS_ naming conventions
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#else /* MARS_HAS_PREPATCH */
infa: introduce wrapper layer for compatibiliy with multiple kernels This is needed for adaptation of the out-of-tree MARS version to multiple kernel versions. It will be much simplified after upstream merging, and/or removed/replaced by something better.
2015-08-26 07:29:55 +00:00
infra: replace sys_symlink() by vfs_symlink()
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#include <linux/compiler.h>
infra: remove unwanted sys_utimes()
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#include <linux/time.h>
infra: replace sys_symlink() by vfs_symlink()
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extern int _compat_symlink(
const char __user *oldname,
infra: remove unwanted sys_utimes()
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const char __user *newname,
struct timespec *mtime);
infra: replace sys_symlink() by vfs_symlink()
2015-05-26 10:16:32 +00:00
infra: replace sys_mkdir() by vfs_mkdir()
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extern int _compat_mkdir(
const char __user *pathname,
int mode);
infra: replace unwanted sys_rename() by provisionary wrapper
2015-05-27 08:01:20 +00:00
extern int _compat_rename(
const char __user *oldname,
const char __user *newname);
infra: replace unwanted sys_unlink() by provisionary wrapper
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extern int _compat_unlink(
const char __user *pathname);
all: unify HAS_ naming conventions
2019-08-06 06:34:41 +00:00
#endif /* MARS_HAS_PREPATCH */
infa: introduce wrapper layer for compatibiliy with multiple kernels This is needed for adaptation of the out-of-tree MARS version to multiple kernel versions. It will be much simplified after upstream merging, and/or removed/replaced by something better.
2015-08-26 07:29:55 +00:00
compat: prepare moving compat checks
2019-02-20 10:18:06 +00:00
/* Various compatibility checks for upstream kernels.
* This is a hell.
*/
bio: move compat check
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#ifdef __bvec_iter_bvec
#define HAS_BVEC_ITER
#endif
if: move and merge compat check with bio
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/* adaptation to 4246a0b63bd8f56a1469b12eafeb875b1041a451 and 8ae126660fddbeebb9251a174e6fa45b6ad8f932 */
bio: move compat check
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#ifndef bio_io_error
#define HAS_BI_ERROR
if: move and merge compat check with bio
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#else
#define HAS_MERGE_BVEC
bio: move compat check
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#endif
bio: move compat check
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/* adapt to 4e1b2d52a80d79296a5d899d73249748dea71a53 and many others */
#ifdef bio_op
#define HAS_NEW_BIO_OP
#endif
if: move compat check
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#ifdef bio_end_sector
#define HAS_VOID_RELEASE
#endif
if: move compat check
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#ifdef __bvec_iter_bvec
#define HAS_BVEC_ITER
#endif
if: move and split compat check
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/* 54efd50bfd873e2dbf784e0b21a8027ba4299a3e and 8ae126660fddbeebb9251a174e6fa45b6ad8f932,
* detected via 4246a0b63bd8f56a1469b12eafeb875b1041a451
*/
#ifndef BIO_UPTODATE
#define NEED_BIO_SPLIT
#endif
if: move compat check
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/* adapt to 4e1b2d52a80d79296a5d899d73249748dea71a53 and many others */
#ifdef bio_op
#define HAS_NEW_BIO_OP
#endif
net: move compat check
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/* for networking */
net: move compat check
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#include <net/sock.h>
net: move compat check
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#ifndef TCP_MAX_REORDERING
#define __HAS_IOV_ITER
#endif
net: move compat check
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/* see eeb1bd5c40edb0e2fd925c8535e2fdebdbc5cef2 */
#ifdef sk_net_refcnt
#define __HAS_STRUCT_NET
#endif
infa: introduce wrapper layer for compatibiliy with multiple kernels This is needed for adaptation of the out-of-tree MARS version to multiple kernel versions. It will be much simplified after upstream merging, and/or removed/replaced by something better.
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#endif /* _MARS_COMPAT */