projects / mirror_zfs-debian.git / blame
| Commit | Line | Data |
|---|---|---|
| 7268e1be 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_VFS_H | |
| 27 | #define _ZFS_VFS_H | |
| 28 | ||
| bdf4328b BB |
29 | /* |
| 30 | * 2.6.28 API change, | |
| 31 | * Added insert_inode_locked() helper function, prior to this most callers | |
| 32 | * used insert_inode_hash(). The older method doesn't check for collisions | |
| 33 | * in the inode_hashtable but it still acceptible for use. | |
| 34 | */ | |
| 35 | #ifndef HAVE_INSERT_INODE_LOCKED | |
| 36 | static inline int | |
| 37 | insert_inode_locked(struct inode *ip) | |
| 38 | { | |
| 39 | insert_inode_hash(ip); | |
| 40 | return (0); | |
| 41 | } | |
| 42 | #endif /* HAVE_INSERT_INODE_LOCKED */ | |
| 7268e1be | 43 | |
| b3129792 PJ |
44 | /* |
| 45 | * 2.6.35 API change, | |
| 46 | * Add truncate_setsize() if it is not exported by the Linux kernel. | |
| 47 | * | |
| 48 | * Truncate the inode and pages associated with the inode. The pages are | |
| 49 | * unmapped and removed from cache. | |
| 50 | */ | |
| 51 | #ifndef HAVE_TRUNCATE_SETSIZE | |
| 52 | static inline void | |
| 53 | truncate_setsize(struct inode *ip, loff_t new) | |
| 54 | { | |
| 55 | struct address_space *mapping = ip->i_mapping; | |
| 56 | ||
| 57 | i_size_write(ip, new); | |
| 58 | ||
| 59 | unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1); | |
| 60 | truncate_inode_pages(mapping, new); | |
| 61 | unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1); | |
| 62 | } | |
| 63 | #endif /* HAVE_TRUNCATE_SETSIZE */ | |
| 64 | ||
| 7268e1be | 65 | #endif /* _ZFS_VFS_H */ |