4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef _LINUX_COMPAT25_H
38 #define _LINUX_COMPAT25_H
40 #include <linux/fs_struct.h>
41 #include <linux/namei.h>
42 #include <linux/libcfs/linux/portals_compat25.h>
44 #include <linux/lustre_patchless_compat.h>
46 # define LOCK_FS_STRUCT(fs) spin_lock(&(fs)->lock)
47 # define UNLOCK_FS_STRUCT(fs) spin_unlock(&(fs)->lock)
49 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
50 struct dentry *dentry)
69 * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
70 * ATTR_* attributes (see bug 13828)
72 #define ATTR_BLOCKS (1 << 27)
74 #define current_ngroups current_cred()->group_info->ngroups
75 #define current_groups current_cred()->group_info->small_block
78 * OBD need working random driver, thus all our
79 * initialization routines must be called after device
80 * driver initialization
84 #define module_init(a) late_initcall(a)
88 #define LTIME_S(time) (time.tv_sec)
90 #define ll_permission(inode,mask,nd) inode_permission(inode,mask)
92 # define ll_generic_permission(inode, mask, flags, check_acl) \
93 generic_permission(inode, mask)
95 #define ll_blkdev_put(a, b) blkdev_put(a, b)
97 #define ll_dentry_open(a,b,c) dentry_open(a,b,c)
99 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
100 vfs_symlink(dir, dentry, path)
103 #define ll_generic_file_llseek_size(file, offset, origin, maxbytes, eof) \
104 generic_file_llseek_size(file, offset, origin, maxbytes, eof);
106 /* inode_dio_wait(i) use as-is for write lock */
107 # define inode_dio_write_done(i) do {} while (0) /* for write unlock */
108 # define inode_dio_read(i) atomic_inc(&(i)->i_dio_count)
109 /* inode_dio_done(i) use as-is for read unlock */
111 #define TREE_READ_LOCK_IRQ(mapping) spin_lock_irq(&(mapping)->tree_lock)
112 #define TREE_READ_UNLOCK_IRQ(mapping) spin_unlock_irq(&(mapping)->tree_lock)
115 int ll_unregister_blkdev(unsigned int dev, const char *name)
117 unregister_blkdev(dev, name);
121 #define ll_invalidate_bdev(a,b) invalidate_bdev((a))
123 #ifndef FS_HAS_FIEMAP
124 #define FS_HAS_FIEMAP (0)
129 /* add a lustre compatible layer for crypto API */
130 #include <linux/crypto.h>
131 #define ll_crypto_hash crypto_hash
132 #define ll_crypto_cipher crypto_blkcipher
133 #define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
134 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_hash_setkey(tfm, key, keylen)
135 #define ll_crypto_hash_init(desc) crypto_hash_init(desc)
136 #define ll_crypto_hash_update(desc, sl, bytes) crypto_hash_update(desc, sl, bytes)
137 #define ll_crypto_hash_final(desc, out) crypto_hash_final(desc, out)
138 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
139 crypto_blkcipher_setkey(tfm, key, keylen)
140 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
141 crypto_blkcipher_set_iv(tfm, src, len)
142 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
143 crypto_blkcipher_get_iv(tfm, dst, len)
144 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
145 crypto_blkcipher_encrypt(desc, dst, src, bytes)
146 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
147 crypto_blkcipher_decrypt(desc, dst, src, bytes)
148 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
149 crypto_blkcipher_encrypt_iv(desc, dst, src, bytes)
150 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
151 crypto_blkcipher_decrypt_iv(desc, dst, src, bytes)
154 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char *name,
157 struct ll_crypto_cipher *rtn = crypto_alloc_blkcipher(name, type, mask);
159 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
162 static inline int ll_crypto_hmac(struct ll_crypto_hash *tfm,
163 u8 *key, unsigned int *keylen,
164 struct scatterlist *sg,
165 unsigned int size, u8 *result)
167 struct hash_desc desc;
171 rv = crypto_hash_setkey(desc.tfm, key, *keylen);
173 CERROR("failed to hash setkey: %d\n", rv);
176 return crypto_hash_digest(&desc, sg, size, result);
179 unsigned int ll_crypto_tfm_alg_max_keysize(struct crypto_blkcipher *tfm)
181 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.max_keysize;
184 unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
186 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
189 #define ll_crypto_hash_blocksize(tfm) crypto_hash_blocksize(tfm)
190 #define ll_crypto_hash_digestsize(tfm) crypto_hash_digestsize(tfm)
191 #define ll_crypto_blkcipher_ivsize(tfm) crypto_blkcipher_ivsize(tfm)
192 #define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
193 #define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
194 #define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
196 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
197 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
198 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
199 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
200 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
201 #define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
202 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
203 vfs_rename(old,old_dir,new,new_dir)
205 #ifdef for_each_possible_cpu
206 #define cfs_for_each_possible_cpu(cpu) for_each_possible_cpu(cpu)
207 #elif defined(for_each_cpu)
208 #define cfs_for_each_possible_cpu(cpu) for_each_cpu(cpu)
211 #define cfs_bio_io_error(a,b) bio_io_error((a))
212 #define cfs_bio_endio(a,b,c) bio_endio((a),(c))
214 #define cfs_fs_pwd(fs) ((fs)->pwd.dentry)
215 #define cfs_fs_mnt(fs) ((fs)->pwd.mnt)
216 #define cfs_path_put(nd) path_put(&(nd)->path)
219 #ifndef SLAB_DESTROY_BY_RCU
220 #define SLAB_DESTROY_BY_RCU 0
226 ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
230 if (sb->s_qcop->quota_on) {
233 rc = kern_path(name, LOOKUP_FOLLOW, &path);
236 rc = sb->s_qcop->quota_on(sb, off, ver
246 static inline int ll_quota_off(struct super_block *sb, int off, int remount)
248 if (sb->s_qcop->quota_off) {
249 return sb->s_qcop->quota_off(sb, off
257 # define ll_vfs_dq_init dquot_initialize
258 # define ll_vfs_dq_drop dquot_drop
259 # define ll_vfs_dq_transfer dquot_transfer
260 # define ll_vfs_dq_off(sb, remount) dquot_suspend(sb, -1)
266 #define queue_max_phys_segments(rq) queue_max_segments(rq)
267 #define queue_max_hw_segments(rq) queue_max_segments(rq)
269 #define ll_kmap_atomic(a, b) kmap_atomic(a)
270 #define ll_kunmap_atomic(a, b) kunmap_atomic(a)
273 #define ll_d_hlist_node hlist_node
274 #define ll_d_hlist_empty(list) hlist_empty(list)
275 #define ll_d_hlist_entry(ptr, type, name) hlist_entry(ptr.first, type, name)
276 #define ll_d_hlist_for_each(tmp, i_dentry) hlist_for_each(tmp, i_dentry)
277 #define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
278 p = NULL; hlist_for_each_entry(dentry, i_dentry, alias)
281 #define bio_hw_segments(q, bio) 0
284 #define ll_pagevec_init(pv, cold) do {} while (0)
285 #define ll_pagevec_add(pv, pg) (0)
286 #define ll_pagevec_lru_add_file(pv) do {} while (0)
293 # define NO_QUOTA (-EDQUOT)
297 #define SEEK_DATA 3 /* seek to the next data */
300 #define SEEK_HOLE 4 /* seek to the next hole */
303 #ifndef FMODE_UNSIGNED_OFFSET
304 #define FMODE_UNSIGNED_OFFSET ((__force fmode_t)0x2000)
307 #if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
308 # define ext2_set_bit __test_and_set_bit_le
309 # define ext2_clear_bit __test_and_clear_bit_le
310 # define ext2_test_bit test_bit_le
311 # define ext2_find_first_zero_bit find_first_zero_bit_le
312 # define ext2_find_next_zero_bit find_next_zero_bit_le
315 #ifdef ATTR_TIMES_SET
316 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
318 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
324 * After 3.1, kernel's nameidata.intent.open.flags is different
325 * with lustre's lookup_intent.it_flags, as lustre's it_flags'
326 * lower bits equal to FMODE_xxx while kernel doesn't transliterate
327 * lower bits of nameidata.intent.open.flags to FMODE_xxx.
329 #include <linux/version.h>
330 static inline int ll_namei_to_lookup_intent_flag(int flag)
332 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0)
333 flag = (flag & ~O_ACCMODE) | OPEN_FMODE(flag);
338 # define ll_mrf_ret void
339 # define LL_MRF_RETURN(rc)
341 #include <linux/fs.h>
343 # define ll_umode_t umode_t
345 #include <linux/dcache.h>
347 # define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode), flag)
349 #endif /* _COMPAT25_H */