projects / mirror_spl.git / blame
| Commit | Line | Data |
|---|---|---|
| 716154c5 BB |
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 | ||
| 1c7b3eaf BB |
53 | static inline int |
| 54 | spl_filp_fallocate(struct file *fp, int mode, loff_t offset, loff_t len) | |
| 55 | { | |
| 56 | int error = -EOPNOTSUPP; | |
| 57 | ||
| 58 | #ifdef HAVE_FILE_FALLOCATE | |
| 59 | if (fp->f_op->fallocate) | |
| 60 | error = fp->f_op->fallocate(fp, mode, offset, len); | |
| 61 | #else | |
| 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 */ | |
| 69 | ||
| 70 | return (error); | |
| 71 | } | |
| 72 | ||
| 0d0b5237 BB |
73 | #ifdef HAVE_VFS_FSYNC |
| 74 | # ifdef HAVE_2ARGS_VFS_FSYNC | |
| 75 | # define spl_filp_fsync(fp, sync) vfs_fsync(fp, sync) | |
| 76 | # else | |
| 77 | # define spl_filp_fsync(fp, sync) vfs_fsync(fp, (fp)->f_dentry, sync) | |
| 78 | # endif /* HAVE_2ARGS_VFS_FSYNC */ | |
| f0ff89fc | 79 | #else |
| 0d0b5237 BB |
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 */ | |
| f0ff89fc | 83 | |
| 6bf4d76f BB |
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), \ | |
| 87 | (type))) | |
| 88 | #define spl_inode_unlock(ip) (mutex_unlock(&(ip)->i_mutex)) | |
| 89 | #else | |
| 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 */ | |
| 93 | ||
| 12ff95ff BB |
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) | |
| 99 | # else | |
| 100 | # define spl_kern_path_parent(path, nd) kern_path_parent(path, nd) | |
| 101 | # endif /* HAVE_KERN_PATH_PARENT_SYMBOL */ | |
| b1cbc461 | 102 | #else |
| 12ff95ff BB |
103 | # define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd) |
| 104 | #endif /* HAVE_KERN_PATH_PARENT_HEADER */ | |
| b1cbc461 | 105 | |
| bcb15891 YS |
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 */ | |
| 111 | ||
| 86de8532 | 112 | #endif /* SPL_FILE_COMPAT_H */ |
| 113 |