1 /*****************************************************************************\
2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3 * Copyright (C) 2007 The Regents of the University of California.
4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
8 * This file is part of the SPL, Solaris Porting Layer.
9 * For details, see <http://github.com/behlendorf/spl/>.
11 * The SPL is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
16 * The SPL is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 * You should have received a copy of the GNU General Public License along
22 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
23 \*****************************************************************************/
25 #ifndef _SPL_FILE_COMPAT_H
26 #define _SPL_FILE_COMPAT_H
29 #ifdef HAVE_FDTABLE_HEADER
30 #include <linux/fdtable.h>
33 static inline struct file
*
34 spl_filp_open(const char *name
, int flags
, int mode
, int *err
)
36 struct file
*filp
= NULL
;
39 filp
= filp_open(name
, flags
, mode
);
49 #define spl_filp_close(f) filp_close(f, NULL)
50 #define spl_filp_poff(f) (&(f)->f_pos)
51 #define spl_filp_write(fp, b, s, p) (fp)->f_op->write((fp), (b), (s), p)
54 spl_filp_fallocate(struct file
*fp
, int mode
, loff_t offset
, loff_t len
)
56 int error
= -EOPNOTSUPP
;
58 #ifdef HAVE_FILE_FALLOCATE
59 if (fp
->f_op
->fallocate
)
60 error
= fp
->f_op
->fallocate(fp
, mode
, offset
, len
);
62 # ifdef HAVE_INODE_FALLOCATE
63 if (fp
->f_dentry
&& fp
->f_dentry
->d_inode
&&
64 fp
->f_dentry
->d_inode
->i_op
->fallocate
)
65 error
= fp
->f_dentry
->d_inode
->i_op
->fallocate(
66 fp
->f_dentry
->d_inode
, mode
, offset
, len
);
67 # endif /* HAVE_INODE_FALLOCATE */
68 #endif /*HAVE_FILE_FALLOCATE */
74 # ifdef HAVE_2ARGS_VFS_FSYNC
75 # define spl_filp_fsync(fp, sync) vfs_fsync(fp, sync)
77 # define spl_filp_fsync(fp, sync) vfs_fsync(fp, (fp)->f_dentry, sync)
78 # endif /* HAVE_2ARGS_VFS_FSYNC */
80 # include <linux/buffer_head.h>
81 # define spl_filp_fsync(fp, sync) file_fsync(fp, (fp)->f_dentry, sync)
82 #endif /* HAVE_VFS_FSYNC */
84 #ifdef HAVE_INODE_I_MUTEX
85 #define spl_inode_lock(ip) (mutex_lock(&(ip)->i_mutex))
86 #define spl_inode_lock_nested(ip, type) (mutex_lock_nested((&(ip)->i_mutex), \
88 #define spl_inode_unlock(ip) (mutex_unlock(&(ip)->i_mutex))
90 #define spl_inode_lock(ip) (down(&(ip)->i_sem))
91 #define spl_inode_unlock(ip) (up(&(ip)->i_sem))
92 #endif /* HAVE_INODE_I_MUTEX */
94 #ifdef HAVE_KERN_PATH_PARENT_HEADER
95 # ifndef HAVE_KERN_PATH_PARENT_SYMBOL
96 typedef int (*kern_path_parent_t
)(const char *, struct nameidata
*);
97 extern kern_path_parent_t kern_path_parent_fn
;
98 # define spl_kern_path_parent(path, nd) kern_path_parent_fn(path, nd)
100 # define spl_kern_path_parent(path, nd) kern_path_parent(path, nd)
101 # endif /* HAVE_KERN_PATH_PARENT_SYMBOL */
103 # define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd)
104 #endif /* HAVE_KERN_PATH_PARENT_HEADER */
106 #ifdef HAVE_KERN_PATH_LOCKED
107 typedef struct dentry
* (*kern_path_locked_t
)(const char *, struct path
*);
108 extern kern_path_locked_t kern_path_locked_fn
;
109 # define spl_kern_path_locked(name, path) kern_path_locked_fn(name, path)
110 #endif /* HAVE_KERN_PATH_LOCKED */
112 #endif /* SPL_FILE_COMPAT_H */