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/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* 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 version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _LINUX_COMPAT25_H
#define _LINUX_COMPAT25_H
#include <linux/fs_struct.h>
#include <linux/namei.h>
#include <linux/libcfs/linux/portals_compat25.h>
#include <linux/lustre_patchless_compat.h>
# define LOCK_FS_STRUCT(fs) spin_lock(&(fs)->lock)
# define UNLOCK_FS_STRUCT(fs) spin_unlock(&(fs)->lock)
static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
struct dentry *dentry)
{
struct path path;
struct path old_pwd;
path.mnt = mnt;
path.dentry = dentry;
LOCK_FS_STRUCT(fs);
old_pwd = fs->pwd;
path_get(&path);
fs->pwd = path;
UNLOCK_FS_STRUCT(fs);
if (old_pwd.dentry)
path_put(&old_pwd);
}
/*
* set ATTR_BLOCKS to a high value to avoid any risk of collision with other
* ATTR_* attributes (see bug 13828)
*/
#define ATTR_BLOCKS (1 << 27)
#define current_ngroups current_cred()->group_info->ngroups
#define current_groups current_cred()->group_info->small_block
/*
* OBD need working random driver, thus all our
* initialization routines must be called after device
* driver initialization
*/
#ifndef MODULE
#undef module_init
#define module_init(a) late_initcall(a)
#endif
#define LTIME_S(time) (time.tv_sec)
/* inode_dio_wait(i) use as-is for write lock */
# define inode_dio_write_done(i) do {} while (0) /* for write unlock */
# define inode_dio_read(i) atomic_inc(&(i)->i_dio_count)
/* inode_dio_done(i) use as-is for read unlock */
#define TREE_READ_LOCK_IRQ(mapping) spin_lock_irq(&(mapping)->tree_lock)
#define TREE_READ_UNLOCK_IRQ(mapping) spin_unlock_irq(&(mapping)->tree_lock)
#ifndef FS_HAS_FIEMAP
#define FS_HAS_FIEMAP (0)
#endif
#define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
#define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
#define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
#define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
#define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
#define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1,delegated_inode) \
vfs_rename(old,old_dir,new,new_dir,delegated_inode)
#define cfs_bio_io_error(a,b) bio_io_error((a))
#define cfs_bio_endio(a,b,c) bio_endio((a),(c))
#define cfs_fs_pwd(fs) ((fs)->pwd.dentry)
#define cfs_fs_mnt(fs) ((fs)->pwd.mnt)
#define cfs_path_put(nd) path_put(&(nd)->path)
#ifndef SLAB_DESTROY_BY_RCU
#define SLAB_DESTROY_BY_RCU 0
#endif
static inline int
ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
{
int rc;
if (sb->s_qcop->quota_on) {
struct path path;
rc = kern_path(name, LOOKUP_FOLLOW, &path);
if (!rc)
return rc;
rc = sb->s_qcop->quota_on(sb, off, ver
, &path
);
path_put(&path);
return rc;
}
else
return -ENOSYS;
}
static inline int ll_quota_off(struct super_block *sb, int off, int remount)
{
if (sb->s_qcop->quota_off) {
return sb->s_qcop->quota_off(sb, off
);
}
else
return -ENOSYS;
}
# define ll_vfs_dq_init dquot_initialize
# define ll_vfs_dq_drop dquot_drop
# define ll_vfs_dq_transfer dquot_transfer
# define ll_vfs_dq_off(sb, remount) dquot_suspend(sb, -1)
#define queue_max_phys_segments(rq) queue_max_segments(rq)
#define queue_max_hw_segments(rq) queue_max_segments(rq)
#define ll_d_hlist_node hlist_node
#define ll_d_hlist_empty(list) hlist_empty(list)
#define ll_d_hlist_entry(ptr, type, name) hlist_entry(ptr.first, type, name)
#define ll_d_hlist_for_each(tmp, i_dentry) hlist_for_each(tmp, i_dentry)
#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
p = NULL; hlist_for_each_entry(dentry, i_dentry, alias)
#define bio_hw_segments(q, bio) 0
#define ll_pagevec_init(pv, cold) do {} while (0)
#define ll_pagevec_add(pv, pg) (0)
#define ll_pagevec_lru_add_file(pv) do {} while (0)
#ifndef QUOTA_OK
# define QUOTA_OK 0
#endif
#ifndef NO_QUOTA
# define NO_QUOTA (-EDQUOT)
#endif
#ifndef SEEK_DATA
#define SEEK_DATA 3 /* seek to the next data */
#endif
#ifndef SEEK_HOLE
#define SEEK_HOLE 4 /* seek to the next hole */
#endif
#ifndef FMODE_UNSIGNED_OFFSET
#define FMODE_UNSIGNED_OFFSET ((__force fmode_t)0x2000)
#endif
#if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
# define ext2_set_bit __test_and_set_bit_le
# define ext2_clear_bit __test_and_clear_bit_le
# define ext2_test_bit test_bit_le
# define ext2_find_first_zero_bit find_first_zero_bit_le
# define ext2_find_next_zero_bit find_next_zero_bit_le
#endif
#ifdef ATTR_TIMES_SET
# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
#else
# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
#endif
/*
* After 3.1, kernel's nameidata.intent.open.flags is different
* with lustre's lookup_intent.it_flags, as lustre's it_flags'
* lower bits equal to FMODE_xxx while kernel doesn't transliterate
* lower bits of nameidata.intent.open.flags to FMODE_xxx.
* */
#include <linux/version.h>
static inline int ll_namei_to_lookup_intent_flag(int flag)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0)
flag = (flag & ~O_ACCMODE) | OPEN_FMODE(flag);
#endif
return flag;
}
#include <linux/fs.h>
# define ll_umode_t umode_t
#include <linux/dcache.h>
# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode), flag)
#endif /* _COMPAT25_H */
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