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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>. | |
6 | * UCRL-CODE-235197 | |
7 | * | |
8 | * This file is part of the SPL, Solaris Porting Layer. | |
9 | * For details, see <http://github.com/behlendorf/spl/>. | |
10 | * | |
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. | |
15 | * | |
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 | |
19 | * for more details. | |
20 | * | |
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 | \*****************************************************************************/ | |
24 | ||
86de8532 | 25 | #ifndef _SPL_FILE_COMPAT_H |
26 | #define _SPL_FILE_COMPAT_H | |
27 | ||
55abb092 | 28 | #include <linux/fs.h> |
86de8532 | 29 | #ifdef HAVE_FDTABLE_HEADER |
30 | #include <linux/fdtable.h> | |
31 | #endif | |
32 | ||
f0ff89fc BB |
33 | static inline struct file * |
34 | spl_filp_open(const char *name, int flags, int mode, int *err) | |
35 | { | |
36 | struct file *filp = NULL; | |
37 | int rc; | |
38 | ||
39 | filp = filp_open(name, flags, mode); | |
40 | if (IS_ERR(filp)) { | |
41 | rc = PTR_ERR(filp); | |
42 | if (err) | |
43 | *err = rc; | |
44 | filp = NULL; | |
45 | } | |
46 | return filp; | |
47 | } | |
48 | ||
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) | |
52 | ||
0d0b5237 BB |
53 | #ifdef HAVE_VFS_FSYNC |
54 | # ifdef HAVE_2ARGS_VFS_FSYNC | |
55 | # define spl_filp_fsync(fp, sync) vfs_fsync(fp, sync) | |
56 | # else | |
57 | # define spl_filp_fsync(fp, sync) vfs_fsync(fp, (fp)->f_dentry, sync) | |
58 | # endif /* HAVE_2ARGS_VFS_FSYNC */ | |
f0ff89fc | 59 | #else |
0d0b5237 BB |
60 | # include <linux/buffer_head.h> |
61 | # define spl_filp_fsync(fp, sync) file_fsync(fp, (fp)->f_dentry, sync) | |
62 | #endif /* HAVE_VFS_FSYNC */ | |
f0ff89fc | 63 | |
6bf4d76f BB |
64 | #ifdef HAVE_INODE_I_MUTEX |
65 | #define spl_inode_lock(ip) (mutex_lock(&(ip)->i_mutex)) | |
66 | #define spl_inode_lock_nested(ip, type) (mutex_lock_nested((&(ip)->i_mutex), \ | |
67 | (type))) | |
68 | #define spl_inode_unlock(ip) (mutex_unlock(&(ip)->i_mutex)) | |
69 | #else | |
70 | #define spl_inode_lock(ip) (down(&(ip)->i_sem)) | |
71 | #define spl_inode_unlock(ip) (up(&(ip)->i_sem)) | |
72 | #endif /* HAVE_INODE_I_MUTEX */ | |
73 | ||
12ff95ff BB |
74 | #ifdef HAVE_KERN_PATH_PARENT_HEADER |
75 | # ifndef HAVE_KERN_PATH_PARENT_SYMBOL | |
76 | typedef int (*kern_path_parent_t)(const char *, struct nameidata *); | |
77 | extern kern_path_parent_t kern_path_parent_fn; | |
78 | # define spl_kern_path_parent(path, nd) kern_path_parent_fn(path, nd) | |
79 | # else | |
80 | # define spl_kern_path_parent(path, nd) kern_path_parent(path, nd) | |
81 | # endif /* HAVE_KERN_PATH_PARENT_SYMBOL */ | |
b1cbc461 | 82 | #else |
12ff95ff BB |
83 | # define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd) |
84 | #endif /* HAVE_KERN_PATH_PARENT_HEADER */ | |
b1cbc461 | 85 | |
e0093fea RY |
86 | #ifndef HAVE_CLEAR_CLOSE_ON_EXEC |
87 | #define __clear_close_on_exec(fd, fdt) FD_CLR(fd, fdt->close_on_exec) | |
88 | #endif | |
89 | ||
86de8532 | 90 | #endif /* SPL_FILE_COMPAT_H */ |
91 |