1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
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
42 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
43 #error sorry, lustre requires at least linux kernel 2.6.9 or later
46 #include <libcfs/linux/portals_compat25.h>
48 #include <linux/lustre_patchless_compat.h>
50 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
53 unsigned int ia_attr_flags;
56 #define ll_iattr iattr
57 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14) */
59 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
60 struct dentry *dentry)
62 struct dentry *old_pwd;
63 struct vfsmount *old_pwdmnt;
65 write_lock(&fs->lock);
67 old_pwdmnt = fs->pwdmnt;
68 fs->pwdmnt = mntget(mnt);
69 fs->pwd = dget(dentry);
70 write_unlock(&fs->lock);
79 * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
80 * ATTR_* attributes (see bug 13828)
82 #define ATTR_BLOCKS (1 << 27)
84 #if HAVE_INODE_I_MUTEX
85 #define UNLOCK_INODE_MUTEX(inode) do {mutex_unlock(&(inode)->i_mutex); } while(0)
86 #define LOCK_INODE_MUTEX(inode) do {mutex_lock(&(inode)->i_mutex); } while(0)
87 #define LOCK_INODE_MUTEX_PARENT(inode) \
88 do {mutex_lock_nested(&(inode)->i_mutex, I_MUTEX_PARENT); } while(0)
89 #define TRYLOCK_INODE_MUTEX(inode) mutex_trylock(&(inode)->i_mutex)
91 #define UNLOCK_INODE_MUTEX(inode) do {up(&(inode)->i_sem); } while(0)
92 #define LOCK_INODE_MUTEX(inode) do {down(&(inode)->i_sem); } while(0)
93 #define TRYLOCK_INODE_MUTEX(inode) (!down_trylock(&(inode)->i_sem))
94 #define LOCK_INODE_MUTEX_PARENT(inode) LOCK_INODE_MUTEX(inode)
95 #endif /* HAVE_INODE_I_MUTEX */
98 #define LL_SEQ_LOCK(seq) mutex_lock(&(seq)->lock)
99 #define LL_SEQ_UNLOCK(seq) mutex_unlock(&(seq)->lock)
101 #define LL_SEQ_LOCK(seq) down(&(seq)->sem)
102 #define LL_SEQ_UNLOCK(seq) up(&(seq)->sem)
105 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
106 #define d_child d_u.d_child
107 #define d_rcu d_u.d_rcu
110 #ifdef HAVE_DQUOTOFF_MUTEX
111 #define UNLOCK_DQONOFF_MUTEX(dqopt) do {mutex_unlock(&(dqopt)->dqonoff_mutex); } while(0)
112 #define LOCK_DQONOFF_MUTEX(dqopt) do {mutex_lock(&(dqopt)->dqonoff_mutex); } while(0)
114 #define UNLOCK_DQONOFF_MUTEX(dqopt) do {up(&(dqopt)->dqonoff_sem); } while(0)
115 #define LOCK_DQONOFF_MUTEX(dqopt) do {down(&(dqopt)->dqonoff_sem); } while(0)
116 #endif /* HAVE_DQUOTOFF_MUTEX */
118 #define current_ngroups current->group_info->ngroups
119 #define current_groups current->group_info->small_block
122 #define page_private(page) ((page)->private)
123 #define set_page_private(page, v) ((page)->private = (v))
130 #define lock_dentry(___dentry) spin_lock(&(___dentry)->d_lock)
131 #define unlock_dentry(___dentry) spin_unlock(&(___dentry)->d_lock)
133 #define ll_kernel_locked() kernel_locked()
136 * OBD need working random driver, thus all our
137 * initialization routines must be called after device
138 * driver initialization
142 #define module_init(a) late_initcall(a)
145 /* XXX our code should be using the 2.6 calls, not the other way around */
146 #define TryLockPage(page) TestSetPageLocked(page)
147 #define Page_Uptodate(page) PageUptodate(page)
148 #define ll_redirty_page(page) set_page_dirty(page)
150 #define KDEVT_INIT(val) (val)
152 #define LTIME_S(time) (time.tv_sec)
153 #define ll_path_lookup path_lookup
154 #define ll_permission(inode,mask,nd) permission(inode,mask,nd)
156 #define ll_pgcache_lock(mapping) spin_lock(&mapping->page_lock)
157 #define ll_pgcache_unlock(mapping) spin_unlock(&mapping->page_lock)
158 #define ll_call_writepage(inode, page) \
159 (inode)->i_mapping->a_ops->writepage(page, NULL)
160 #define ll_invalidate_inode_pages(inode) \
161 invalidate_inode_pages((inode)->i_mapping)
162 #define ll_truncate_complete_page(page) \
163 truncate_complete_page(page->mapping, page)
165 #define ll_vfs_create(a,b,c,d) vfs_create(a,b,c,d)
166 #define ll_dev_t dev_t
168 #define to_kdev_t(dev) (dev)
169 #define kdev_t_to_nr(dev) (dev)
170 #define val_to_kdev(dev) (dev)
171 #define ILOOKUP(sb, ino, test, data) ilookup5(sb, ino, test, data);
173 #include <linux/writeback.h>
175 static inline int cleanup_group_info(void)
177 struct group_info *ginfo;
179 ginfo = groups_alloc(0);
183 set_current_groups(ginfo);
184 put_group_info(ginfo);
189 #define __set_page_ll_data(page, llap) \
191 page_cache_get(page); \
192 SetPagePrivate(page); \
193 set_page_private(page, (unsigned long)llap); \
195 #define __clear_page_ll_data(page) \
197 ClearPagePrivate(page); \
198 set_page_private(page, 0); \
199 page_cache_release(page); \
204 #include <linux/proc_fs.h>
206 #if !defined(HAVE_D_REHASH_COND) && defined(HAVE___D_REHASH)
207 #define d_rehash_cond(dentry, lock) __d_rehash(dentry, lock)
208 extern void __d_rehash(struct dentry *dentry, int lock);
211 #if !defined(HAVE_D_MOVE_LOCKED) && defined(HAVE___D_MOVE)
212 #define d_move_locked(dentry, target) __d_move(dentry, target)
213 extern void __d_move(struct dentry *dentry, struct dentry *target);
216 #ifdef HAVE_CAN_SLEEP_ARG
217 #define ll_flock_lock_file_wait(file, lock, can_sleep) \
218 flock_lock_file_wait(file, lock, can_sleep)
220 #define ll_flock_lock_file_wait(file, lock, can_sleep) \
221 flock_lock_file_wait(file, lock)
224 #define CheckWriteback(page, cmd) \
225 ((!PageWriteback(page) && (cmd & OBD_BRW_READ)) || \
226 (PageWriteback(page) && (cmd & OBD_BRW_WRITE)))
228 #ifdef HAVE_PAGE_LIST
229 static inline int mapping_has_pages(struct address_space *mapping)
233 ll_pgcache_lock(mapping);
234 if (list_empty(&mapping->dirty_pages) &&
235 list_empty(&mapping->clean_pages) &&
236 list_empty(&mapping->locked_pages)) {
239 ll_pgcache_unlock(mapping);
244 static inline int mapping_has_pages(struct address_space *mapping)
246 return mapping->nrpages > 0;
250 #ifdef HAVE_KIOBUF_KIO_BLOCKS
251 #define KIOBUF_GET_BLOCKS(k) ((k)->kio_blocks)
253 #define KIOBUF_GET_BLOCKS(k) ((k)->blocks)
256 #ifdef HAVE_SECURITY_PLUG
257 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
258 vfs_symlink(dir, dentry, mnt, path, mode)
260 #ifdef HAVE_4ARGS_VFS_SYMLINK
261 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
262 vfs_symlink(dir, dentry, path, mode)
264 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
265 vfs_symlink(dir, dentry, path)
269 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7))
270 #define ll_set_dflags(dentry, flags) do { dentry->d_vfs_flags |= flags; } while(0)
272 #define ll_set_dflags(dentry, flags) do { \
273 spin_lock(&dentry->d_lock); \
274 dentry->d_flags |= flags; \
275 spin_unlock(&dentry->d_lock); \
280 #define container_of(ptr, type, member) ({ \
281 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
282 (type *)( (char *)__mptr - offsetof(type,member) );})
285 #define UP_WRITE_I_ALLOC_SEM(i) up_write(&(i)->i_alloc_sem)
286 #define DOWN_WRITE_I_ALLOC_SEM(i) down_write(&(i)->i_alloc_sem)
287 #define LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) LASSERT(down_read_trylock(&(i)->i_alloc_sem) == 0)
289 #define UP_READ_I_ALLOC_SEM(i) up_read(&(i)->i_alloc_sem)
290 #define DOWN_READ_I_ALLOC_SEM(i) down_read(&(i)->i_alloc_sem)
291 #define LASSERT_I_ALLOC_SEM_READ_LOCKED(i) LASSERT(down_write_trylock(&(i)->i_alloc_sem) == 0)
293 #ifndef HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP
294 #define grab_cache_page_nowait_gfp(x, y, z) grab_cache_page_nowait((x), (y))
297 #include <linux/mpage.h> /* for generic_writepages */
298 #ifndef HAVE_FILEMAP_FDATAWRITE_RANGE
299 #include <linux/backing-dev.h> /* for mapping->backing_dev_info */
300 static inline int filemap_fdatawrite_range(struct address_space *mapping,
301 loff_t start, loff_t end)
304 struct writeback_control wbc = {
305 .sync_mode = WB_SYNC_ALL,
306 .nr_to_write = (end - start + PAGE_SIZE - 1) >> PAGE_SHIFT,
309 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
310 wbc.range_start = start;
317 #ifdef mapping_cap_writeback_dirty
318 if (!mapping_cap_writeback_dirty(mapping))
321 if (mapping->backing_dev_info->memory_backed)
324 /* do_writepages() */
325 else if (mapping->a_ops->writepages)
326 rc = mapping->a_ops->writepages(mapping, &wbc);
328 rc = generic_writepages(mapping, &wbc);
332 int filemap_fdatawrite_range(struct address_space *mapping,
333 loff_t start, loff_t end);
334 #endif /* HAVE_FILEMAP_FDATAWRITE_RANGE */
336 #ifdef HAVE_VFS_KERN_MOUNT
337 static inline struct vfsmount *
338 ll_kern_mount(const char *fstype, int flags, const char *name, void *data)
340 struct file_system_type *type = get_fs_type(fstype);
341 struct vfsmount *mnt;
343 return ERR_PTR(-ENODEV);
344 mnt = vfs_kern_mount(type, flags, name, data);
345 module_put(type->owner);
349 #define ll_kern_mount(fstype, flags, name, data) do_kern_mount((fstype), (flags), (name), (data))
352 #ifdef HAVE_STATFS_DENTRY_PARAM
353 #define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb)->s_root, (sfs))
355 #define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb), (sfs))
358 #ifndef HAVE_SB_TIME_GRAN
359 #ifndef HAVE_S_TIME_GRAN
360 #error Need s_time_gran patch!
362 static inline u32 get_sb_time_gran(struct super_block *sb)
364 return sb->s_time_gran;
368 #ifdef HAVE_RW_TREE_LOCK
369 #define TREE_READ_LOCK_IRQ(mapping) read_lock_irq(&(mapping)->tree_lock)
370 #define TREE_READ_UNLOCK_IRQ(mapping) read_unlock_irq(&(mapping)->tree_lock)
372 #define TREE_READ_LOCK_IRQ(mapping) spin_lock_irq(&(mapping)->tree_lock)
373 #define TREE_READ_UNLOCK_IRQ(mapping) spin_unlock_irq(&(mapping)->tree_lock)
376 #ifdef HAVE_UNREGISTER_BLKDEV_RETURN_INT
377 #define ll_unregister_blkdev(a,b) unregister_blkdev((a),(b))
380 int ll_unregister_blkdev(unsigned int dev, const char *name)
382 unregister_blkdev(dev, name);
387 #ifdef HAVE_INVALIDATE_BDEV_2ARG
388 #define ll_invalidate_bdev(a,b) invalidate_bdev((a),(b))
390 #define ll_invalidate_bdev(a,b) invalidate_bdev((a))
393 #ifdef HAVE_INODE_BLKSIZE
394 #define ll_inode_blksize(a) (a)->i_blksize
396 #define ll_inode_blksize(a) (1<<(a)->i_blkbits)
399 #ifdef HAVE_FS_RENAME_DOES_D_MOVE
400 #define LL_RENAME_DOES_D_MOVE FS_RENAME_DOES_D_MOVE
402 #define LL_RENAME_DOES_D_MOVE FS_ODD_RENAME
405 /* add a lustre compatible layer for crypto API */
406 #include <linux/crypto.h>
407 #ifdef HAVE_ASYNC_BLOCK_CIPHER
408 #define ll_crypto_hash crypto_hash
409 #define ll_crypto_cipher crypto_blkcipher
410 #define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
411 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_hash_setkey(tfm, key, keylen)
412 #define ll_crypto_hash_init(desc) crypto_hash_init(desc)
413 #define ll_crypto_hash_update(desc, sl, bytes) crypto_hash_update(desc, sl, bytes)
414 #define ll_crypto_hash_final(desc, out) crypto_hash_final(desc, out)
415 #define ll_crypto_alloc_blkcipher(name, type, mask) \
416 crypto_alloc_blkcipher(name ,type, mask)
417 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
418 crypto_blkcipher_setkey(tfm, key, keylen)
419 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
420 crypto_blkcipher_set_iv(tfm, src, len)
421 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
422 crypto_blkcipher_get_iv(tfm, dst, len)
423 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
424 crypto_blkcipher_encrypt(desc, dst, src, bytes)
425 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
426 crypto_blkcipher_decrypt(desc, dst, src, bytes)
427 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
428 crypto_blkcipher_encrypt_iv(desc, dst, src, bytes)
429 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
430 crypto_blkcipher_decrypt_iv(desc, dst, src, bytes)
432 static inline int ll_crypto_hmac(struct ll_crypto_hash *tfm,
433 u8 *key, unsigned int *keylen,
434 struct scatterlist *sg,
435 unsigned int size, u8 *result)
437 struct hash_desc desc;
441 rv = crypto_hash_setkey(desc.tfm, key, *keylen);
443 CERROR("failed to hash setkey: %d\n", rv);
446 return crypto_hash_digest(&desc, sg, size, result);
449 unsigned int ll_crypto_tfm_alg_max_keysize(struct crypto_blkcipher *tfm)
451 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.max_keysize;
454 unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
456 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
459 #define ll_crypto_hash_blocksize(tfm) crypto_hash_blocksize(tfm)
460 #define ll_crypto_hash_digestsize(tfm) crypto_hash_digestsize(tfm)
461 #define ll_crypto_blkcipher_ivsize(tfm) crypto_blkcipher_ivsize(tfm)
462 #define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
463 #define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
464 #define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
465 #else /* HAVE_ASYNC_BLOCK_CIPHER */
466 #include <linux/scatterlist.h>
467 #define ll_crypto_hash crypto_tfm
468 #define ll_crypto_cipher crypto_tfm
469 #ifndef HAVE_STRUCT_HASH_DESC
471 struct ll_crypto_hash *tfm;
475 #ifndef HAVE_STRUCT_BLKCIPHER_DESC
476 struct blkcipher_desc {
477 struct ll_crypto_cipher *tfm;
482 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
483 crypto_cipher_setkey(tfm, key, keylen)
484 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
485 crypto_cipher_set_iv(tfm, src, len)
486 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
487 crypto_cipher_get_iv(tfm, dst, len)
488 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
489 crypto_cipher_encrypt((desc)->tfm, dst, src, bytes)
490 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
491 crypto_cipher_decrypt((desc)->tfm, dst, src, bytes)
492 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
493 crypto_cipher_decrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
494 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
495 crypto_cipher_encrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
498 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char * algname,
501 char buf[CRYPTO_MAX_ALG_NAME + 1];
502 const char *pan = algname;
505 if (strncmp("cbc(", algname, 4) == 0)
506 flag |= CRYPTO_TFM_MODE_CBC;
507 else if (strncmp("ecb(", algname, 4) == 0)
508 flag |= CRYPTO_TFM_MODE_ECB;
510 char *vp = strnchr(algname, CRYPTO_MAX_ALG_NAME, ')');
512 memcpy(buf, algname + 4, vp - algname - 4);
513 buf[vp - algname - 4] = '\0';
519 return crypto_alloc_tfm(pan, flag);
523 struct ll_crypto_hash *ll_crypto_alloc_hash(const char *alg, u32 type, u32 mask)
525 char buf[CRYPTO_MAX_ALG_NAME + 1];
526 const char *pan = alg;
528 if (strncmp("hmac(", alg, 5) == 0) {
529 char *vp = strnchr(alg, CRYPTO_MAX_ALG_NAME, ')');
531 memcpy(buf, alg+ 5, vp - alg- 5);
532 buf[vp - alg - 5] = 0x00;
536 return crypto_alloc_tfm(pan, 0);
538 static inline int ll_crypto_hash_init(struct hash_desc *desc)
540 crypto_digest_init(desc->tfm); return 0;
542 static inline int ll_crypto_hash_update(struct hash_desc *desc,
543 struct scatterlist *sg,
546 struct scatterlist *sl = sg;
549 * This way is very weakness. We must ensure that
550 * the sum of sg[0..i]->length isn't greater than nbytes.
551 * In the upstream kernel the crypto_hash_update() also
552 * via the nbytes computed the count of sg[...].
553 * The old style is more safely. but it gone.
555 for (count = 0; nbytes > 0; count ++, sl ++) {
556 nbytes -= sl->length;
558 crypto_digest_update(desc->tfm, sg, count); return 0;
560 static inline int ll_crypto_hash_final(struct hash_desc *desc, u8 *out)
562 crypto_digest_final(desc->tfm, out); return 0;
564 static inline int ll_crypto_hmac(struct crypto_tfm *tfm,
565 u8 *key, unsigned int *keylen,
566 struct scatterlist *sg,
570 struct scatterlist *sl = sg;
572 for (count = 0; nbytes > 0; count ++, sl ++) {
573 nbytes -= sl->length;
575 crypto_hmac(tfm, key, keylen, sg, count, out);
579 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_digest_setkey(tfm, key, keylen)
580 #define ll_crypto_blkcipher_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
581 #define ll_crypto_blkcipher_ivsize(tfm) crypto_tfm_alg_ivsize(tfm)
582 #define ll_crypto_hash_digestsize(tfm) crypto_tfm_alg_digestsize(tfm)
583 #define ll_crypto_hash_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
584 #define ll_crypto_free_hash(tfm) crypto_free_tfm(tfm)
585 #define ll_crypto_free_blkcipher(tfm) crypto_free_tfm(tfm)
586 #define ll_crypto_tfm_alg_min_keysize crypto_tfm_alg_min_keysize
587 #define ll_crypto_tfm_alg_max_keysize crypto_tfm_alg_max_keysize
588 #endif /* HAVE_ASYNC_BLOCK_CIPHER */
590 #ifndef HAVE_SYNCHRONIZE_RCU
591 #define synchronize_rcu() synchronize_kernel()
594 #ifdef HAVE_SECURITY_PLUG
595 #define ll_remove_suid(inode,mnt) remove_suid(inode,mnt)
596 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry,mnt)
597 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mnt,mode)
598 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,mnt,dir,new,mnt1)
599 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry,mnt)
600 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) \
601 vfs_mknod(dir,entry,mnt,mode,dev)
602 #define ll_security_inode_unlink(dir,entry,mnt) \
603 security_inode_unlink(dir,entry,mnt)
604 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
605 vfs_rename(old,old_dir,mnt,new,new_dir,mnt1)
607 #define ll_remove_suid(inode,mnt) remove_suid(inode)
608 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
609 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
610 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
611 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
612 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
613 #define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
614 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
615 vfs_rename(old,old_dir,new,new_dir)
616 #endif /* HAVE_SECURITY_PLUG */
618 #ifndef for_each_possible_cpu
619 #define for_each_possible_cpu(i) for_each_cpu(i)
623 #define cpu_to_node(cpu) 0
627 static inline int abs(int x)
629 return (x < 0) ? -x : x;
634 static inline long labs(long x)
636 return (x < 0) ? -x : x;
638 #endif /* HAVE_REGISTER_SHRINKER */
640 /* Using kernel fls(). Userspace will use one defined in user-bitops.h. */
645 #ifdef HAVE_INVALIDATE_INODE_PAGES
646 #define invalidate_mapping_pages(mapping,s,e) invalidate_inode_pages(mapping)
649 #ifdef HAVE_INODE_IPRIVATE
650 #define INODE_PRIVATE_DATA(inode) ((inode)->i_private)
652 #define INODE_PRIVATE_DATA(inode) ((inode)->u.generic_ip)
655 #ifndef SLAB_DESTROY_BY_RCU
656 #define SLAB_DESTROY_BY_RCU 0
659 #ifdef HAVE_VFS_RENAME_MUTEX
660 #define VFS_RENAME_LOCK(inode) mutex_lock(&((inode)->i_sb->s_vfs_rename_mutex))
661 #define VFS_RENAME_UNLOCK(inode) mutex_unlock(&((inode)->i_sb->s_vfs_rename_mutex))
663 #define VFS_RENAME_LOCK(inode) down(&((inode)->i_sb->s_vfs_rename_sem))
664 #define VFS_RENAME_UNLOCK(inode) up(&((inode)->i_sb->s_vfs_rename_sem))
667 #endif /* __KERNEL__ */
668 #endif /* _COMPAT25_H */