projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 777d4af8 BB |
1 | /* |
| 2 | * CDDL HEADER START | |
| 3 | * | |
| 4 | * The contents of this file are subject to the terms of the | |
| 5 | * Common Development and Distribution License (the "License"). | |
| 6 | * You may not use this file except in compliance with the License. | |
| 7 | * | |
| 8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
| 9 | * or http://www.opensolaris.org/os/licensing. | |
| 10 | * See the License for the specific language governing permissions | |
| 11 | * and limitations under the License. | |
| 12 | * | |
| 13 | * When distributing Covered Code, include this CDDL HEADER in each | |
| 14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
| 15 | * If applicable, add the following below this CDDL HEADER, with the | |
| 16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
| 17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
| 18 | * | |
| 19 | * CDDL HEADER END | |
| 20 | */ | |
| 21 | ||
| 22 | /* | |
| 23 | * Copyright (C) 2011 Lawrence Livermore National Security, LLC. | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef _ZFS_XATTR_H | |
| 27 | #define _ZFS_XATTR_H | |
| 28 | ||
| 29 | /* | |
| 30 | * 2.6.35 API change, | |
| 31 | * The const keyword was added to the 'struct xattr_handler' in the | |
| 32 | * generic Linux super_block structure. To handle this we define an | |
| 33 | * appropriate xattr_handler_t typedef which can be used. This was | |
| 34 | * the preferred solution because it keeps the code clean and readable. | |
| 35 | */ | |
| 36 | #ifdef HAVE_CONST_XATTR_HANDLER | |
| 37 | typedef const struct xattr_handler xattr_handler_t; | |
| 38 | #else | |
| 39 | typedef struct xattr_handler xattr_handler_t; | |
| 40 | #endif | |
| 41 | ||
| f9637c6c BB |
42 | /* |
| 43 | * 2.6.33 API change, | |
| 44 | * The xattr_hander->get() callback was changed to take a dentry | |
| 45 | * instead of an inode, and a handler_flags argument was added. | |
| 46 | */ | |
| 47 | #ifdef HAVE_DENTRY_XATTR_GET | |
| 48 | #define ZPL_XATTR_GET_WRAPPER(fn) \ | |
| 49 | static int \ | |
| 50 | fn(struct dentry *dentry, const char *name, void *buffer, size_t size, \ | |
| 51 | int unused_handler_flags) \ | |
| 52 | { \ | |
| 53 | return __ ## fn(dentry->d_inode, name, buffer, size); \ | |
| 54 | } | |
| 55 | #else | |
| 56 | #define ZPL_XATTR_GET_WRAPPER(fn) \ | |
| 57 | static int \ | |
| 58 | fn(struct inode *ip, const char *name, void *buffer, size_t size) \ | |
| 59 | { \ | |
| 60 | return __ ## fn(ip, name, buffer, size); \ | |
| 61 | } | |
| 62 | #endif /* HAVE_DENTRY_XATTR_GET */ | |
| 63 | ||
| 64 | /* | |
| 65 | * 2.6.33 API change, | |
| 66 | * The xattr_hander->set() callback was changed to take a dentry | |
| 67 | * instead of an inode, and a handler_flags argument was added. | |
| 68 | */ | |
| 69 | #ifdef HAVE_DENTRY_XATTR_SET | |
| 70 | #define ZPL_XATTR_SET_WRAPPER(fn) \ | |
| 71 | static int \ | |
| 72 | fn(struct dentry *dentry, const char *name, const void *buffer, \ | |
| 73 | size_t size, int flags, int unused_handler_flags) \ | |
| 74 | { \ | |
| 75 | return __ ## fn(dentry->d_inode, name, buffer, size, flags); \ | |
| 76 | } | |
| 77 | #else | |
| 78 | #define ZPL_XATTR_SET_WRAPPER(fn) \ | |
| 79 | static int \ | |
| 80 | fn(struct inode *ip, const char *name, const void *buffer, \ | |
| 81 | size_t size, int flags) \ | |
| 82 | { \ | |
| 83 | return __ ## fn(ip, name, buffer, size, flags); \ | |
| 84 | } | |
| 85 | #endif /* HAVE_DENTRY_XATTR_SET */ | |
| 86 | ||
| 777d4af8 | 87 | #endif /* _ZFS_XATTR_H */ |