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, Whamcloud, Inc.
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 <linux/fs_struct.h>
47 #include <linux/namei.h>
48 #include <libcfs/linux/portals_compat25.h>
50 #include <linux/lustre_patchless_compat.h>
52 /* Some old kernels (like 2.6.9) may not define such SEEK_XXX. So the
53 * definition allows to compile lustre client on more OS platforms. */
60 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
63 unsigned int ia_attr_flags;
66 #define ll_iattr iattr
67 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14) */
69 #ifdef HAVE_FS_STRUCT_RWLOCK
70 # define LOCK_FS_STRUCT(fs) cfs_write_lock(&(fs)->lock)
71 # define UNLOCK_FS_STRUCT(fs) cfs_write_unlock(&(fs)->lock)
73 # define LOCK_FS_STRUCT(fs) cfs_spin_lock(&(fs)->lock)
74 # define UNLOCK_FS_STRUCT(fs) cfs_spin_unlock(&(fs)->lock)
77 #ifdef HAVE_FS_STRUCT_USE_PATH
78 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
79 struct dentry *dentry)
98 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
99 struct dentry *dentry)
101 struct dentry *old_pwd;
102 struct vfsmount *old_pwdmnt;
106 old_pwdmnt = fs->pwdmnt;
107 fs->pwdmnt = mntget(mnt);
108 fs->pwd = dget(dentry);
109 UNLOCK_FS_STRUCT(fs);
119 * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
120 * ATTR_* attributes (see bug 13828)
122 #define ATTR_BLOCKS (1 << 27)
124 #if HAVE_INODE_I_MUTEX
125 #define UNLOCK_INODE_MUTEX(inode) \
126 do {cfs_mutex_unlock(&(inode)->i_mutex); } while(0)
127 #define LOCK_INODE_MUTEX(inode) \
128 do {cfs_mutex_lock(&(inode)->i_mutex); } while(0)
129 #define LOCK_INODE_MUTEX_PARENT(inode) \
130 do {cfs_mutex_lock_nested(&(inode)->i_mutex, I_MUTEX_PARENT); } while(0)
131 #define TRYLOCK_INODE_MUTEX(inode) cfs_mutex_trylock(&(inode)->i_mutex)
133 #define UNLOCK_INODE_MUTEX(inode) do cfs_up(&(inode)->i_sem); } while(0)
134 #define LOCK_INODE_MUTEX(inode) do cfs_down(&(inode)->i_sem); } while(0)
135 #define TRYLOCK_INODE_MUTEX(inode) (!down_trylock(&(inode)->i_sem))
136 #define LOCK_INODE_MUTEX_PARENT(inode) LOCK_INODE_MUTEX(inode)
137 #endif /* HAVE_INODE_I_MUTEX */
139 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
140 #define d_child d_u.d_child
141 #define d_rcu d_u.d_rcu
144 #ifdef HAVE_DQUOTOFF_MUTEX
145 #define UNLOCK_DQONOFF_MUTEX(dqopt) cfs_mutex_unlock(&(dqopt)->dqonoff_mutex)
146 #define LOCK_DQONOFF_MUTEX(dqopt) cfs_mutex_lock(&(dqopt)->dqonoff_mutex)
148 #define UNLOCK_DQONOFF_MUTEX(dqopt) cfs_up(&(dqopt)->dqonoff_sem)
149 #define LOCK_DQONOFF_MUTEX(dqopt) cfs_down(&(dqopt)->dqonoff_sem)
150 #endif /* HAVE_DQUOTOFF_MUTEX */
152 #define current_ngroups current_cred()->group_info->ngroups
153 #define current_groups current_cred()->group_info->small_block
156 #define page_private(page) ((page)->private)
157 #define set_page_private(page, v) ((page)->private = (v))
160 #define lock_dentry(___dentry) cfs_spin_lock(&(___dentry)->d_lock)
161 #define unlock_dentry(___dentry) cfs_spin_unlock(&(___dentry)->d_lock)
163 #define ll_kernel_locked() kernel_locked()
166 * OBD need working random driver, thus all our
167 * initialization routines must be called after device
168 * driver initialization
172 #define module_init(a) late_initcall(a)
175 /* XXX our code should be using the 2.6 calls, not the other way around */
176 #ifdef HAVE_TRYLOCK_PAGE
177 #define TestSetPageLocked(page) (!trylock_page(page))
180 #define Page_Uptodate(page) PageUptodate(page)
181 #define ll_redirty_page(page) set_page_dirty(page)
183 #define KDEVT_INIT(val) (val)
185 #define LTIME_S(time) (time.tv_sec)
186 #define ll_path_lookup path_lookup
188 #ifdef HAVE_EXPORT_INODE_PERMISSION
189 #define ll_permission(inode,mask,nd) inode_permission(inode,mask)
191 #define ll_permission(inode,mask,nd) permission(inode,mask,nd)
194 #ifdef HAVE_GENERIC_PERMISSION_4ARGS
195 #define ll_generic_permission(inode, mask, flags, check_acl) \
196 generic_permission(inode, mask, flags, check_acl)
198 #define ll_generic_permission(inode, mask, flags, check_acl) \
199 generic_permission(inode, mask, check_acl)
202 #define ll_pgcache_lock(mapping) cfs_spin_lock(&mapping->page_lock)
203 #define ll_pgcache_unlock(mapping) cfs_spin_unlock(&mapping->page_lock)
204 #define ll_call_writepage(inode, page) \
205 (inode)->i_mapping->a_ops->writepage(page, NULL)
206 #define ll_invalidate_inode_pages(inode) \
207 invalidate_inode_pages((inode)->i_mapping)
209 #define ll_vfs_create(a,b,c,d) vfs_create(a,b,c,d)
210 #define ll_dev_t dev_t
212 #define to_kdev_t(dev) (dev)
213 #define kdev_t_to_nr(dev) (dev)
214 #define val_to_kdev(dev) (dev)
216 #ifdef HAVE_BLKDEV_PUT_2ARGS
217 #define ll_blkdev_put(a, b) blkdev_put(a, b)
219 #define ll_blkdev_put(a, b) blkdev_put(a)
222 #ifdef HAVE_DENTRY_OPEN_4ARGS
223 #define ll_dentry_open(a, b, c, d) dentry_open(a, b, c, d)
225 #define ll_dentry_open(a, b, c, d) dentry_open(a, b, c)
228 #include <linux/writeback.h>
230 static inline int cfs_cleanup_group_info(void)
232 struct group_info *ginfo;
234 ginfo = groups_alloc(0);
238 set_current_groups(ginfo);
239 put_group_info(ginfo);
244 #define __set_page_ll_data(page, llap) \
246 page_cache_get(page); \
247 SetPagePrivate(page); \
248 set_page_private(page, (unsigned long)llap); \
250 #define __clear_page_ll_data(page) \
252 ClearPagePrivate(page); \
253 set_page_private(page, 0); \
254 page_cache_release(page); \
259 #include <linux/proc_fs.h>
261 #if !defined(HAVE_D_REHASH_COND) && defined(HAVE___D_REHASH)
262 #define d_rehash_cond(dentry, lock) __d_rehash(dentry, lock)
263 extern void __d_rehash(struct dentry *dentry, int lock);
266 #define CheckWriteback(page, cmd) \
267 ((!PageWriteback(page) && (cmd & OBD_BRW_READ)) || \
268 (PageWriteback(page) && (cmd & OBD_BRW_WRITE)))
270 #ifdef HAVE_PAGE_LIST
271 static inline int mapping_has_pages(struct address_space *mapping)
275 ll_pgcache_lock(mapping);
276 if (cfs_list_empty(&mapping->dirty_pages) &&
277 cfs_list_empty(&mapping->clean_pages) &&
278 cfs_list_empty(&mapping->locked_pages)) {
281 ll_pgcache_unlock(mapping);
286 static inline int mapping_has_pages(struct address_space *mapping)
288 return mapping->nrpages > 0;
292 #ifdef HAVE_KIOBUF_KIO_BLOCKS
293 #define KIOBUF_GET_BLOCKS(k) ((k)->kio_blocks)
295 #define KIOBUF_GET_BLOCKS(k) ((k)->blocks)
298 #ifdef HAVE_SECURITY_PLUG
299 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
300 vfs_symlink(dir, dentry, mnt, path, mode)
302 #ifdef HAVE_4ARGS_VFS_SYMLINK
303 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
304 vfs_symlink(dir, dentry, path, mode)
306 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
307 vfs_symlink(dir, dentry, path)
310 #define ll_set_dflags(dentry, flags) do { \
311 cfs_spin_lock(&dentry->d_lock); \
312 dentry->d_flags |= flags; \
313 cfs_spin_unlock(&dentry->d_lock); \
318 #define container_of(ptr, type, member) ({ \
319 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
320 (type *)( (char *)__mptr - offsetof(type,member) );})
323 #define UP_WRITE_I_ALLOC_SEM(i) up_write(&(i)->i_alloc_sem)
324 #define DOWN_WRITE_I_ALLOC_SEM(i) down_write(&(i)->i_alloc_sem)
325 #define LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) LASSERT(down_read_trylock(&(i)->i_alloc_sem) == 0)
327 #define UP_READ_I_ALLOC_SEM(i) up_read(&(i)->i_alloc_sem)
328 #define DOWN_READ_I_ALLOC_SEM(i) down_read(&(i)->i_alloc_sem)
329 #define LASSERT_I_ALLOC_SEM_READ_LOCKED(i) LASSERT(down_write_trylock(&(i)->i_alloc_sem) == 0)
331 #include <linux/mpage.h> /* for generic_writepages */
333 #ifndef HAVE_ATOMIC_MNT_COUNT
334 static inline unsigned int mnt_get_count(struct vfsmount *mnt)
337 unsigned int count = 0;
340 for_each_possible_cpu(cpu) {
341 count += per_cpu_ptr(mnt->mnt_pcp, cpu)->mnt_count;
346 return mnt->mnt_count;
350 # define mnt_get_count(mnt) cfs_atomic_read(&mnt->mnt_count)
353 #ifdef HAVE_STATFS_DENTRY_PARAM
354 #define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb)->s_root, (sfs))
356 #define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb), (sfs))
359 #ifndef HAVE_SB_TIME_GRAN
360 #ifndef HAVE_S_TIME_GRAN
361 #error Need s_time_gran patch!
363 static inline u32 get_sb_time_gran(struct super_block *sb)
365 return sb->s_time_gran;
369 #ifdef HAVE_RW_TREE_LOCK
370 #define TREE_READ_LOCK_IRQ(mapping) read_lock_irq(&(mapping)->tree_lock)
371 #define TREE_READ_UNLOCK_IRQ(mapping) read_unlock_irq(&(mapping)->tree_lock)
373 #define TREE_READ_LOCK_IRQ(mapping) cfs_spin_lock_irq(&(mapping)->tree_lock)
374 #define TREE_READ_UNLOCK_IRQ(mapping) cfs_spin_unlock_irq(&(mapping)->tree_lock)
377 #ifdef HAVE_UNREGISTER_BLKDEV_RETURN_INT
378 #define ll_unregister_blkdev(a,b) unregister_blkdev((a),(b))
381 int ll_unregister_blkdev(unsigned int dev, const char *name)
383 unregister_blkdev(dev, name);
388 #ifdef HAVE_INVALIDATE_BDEV_2ARG
389 #define ll_invalidate_bdev(a,b) invalidate_bdev((a),(b))
391 #define ll_invalidate_bdev(a,b) invalidate_bdev((a))
394 #ifdef HAVE_INODE_BLKSIZE
395 #define ll_inode_blksize(a) (a)->i_blksize
397 #define ll_inode_blksize(a) (1<<(a)->i_blkbits)
400 #ifdef HAVE_FS_RENAME_DOES_D_MOVE
401 #define LL_RENAME_DOES_D_MOVE FS_RENAME_DOES_D_MOVE
403 #define LL_RENAME_DOES_D_MOVE FS_ODD_RENAME
406 #ifndef HAVE_D_OBTAIN_ALIAS
407 /* The old d_alloc_anon() didn't free the inode reference on error
408 * like d_obtain_alias(). Hide that difference/inconvenience here. */
409 static inline struct dentry *d_obtain_alias(struct inode *inode)
411 struct dentry *anon = d_alloc_anon(inode);
415 anon = ERR_PTR(-ENOMEM);
422 /* add a lustre compatible layer for crypto API */
423 #include <linux/crypto.h>
424 #ifdef HAVE_ASYNC_BLOCK_CIPHER
425 #define ll_crypto_hash crypto_hash
426 #define ll_crypto_cipher crypto_blkcipher
427 #define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
428 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_hash_setkey(tfm, key, keylen)
429 #define ll_crypto_hash_init(desc) crypto_hash_init(desc)
430 #define ll_crypto_hash_update(desc, sl, bytes) crypto_hash_update(desc, sl, bytes)
431 #define ll_crypto_hash_final(desc, out) crypto_hash_final(desc, out)
432 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
433 crypto_blkcipher_setkey(tfm, key, keylen)
434 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
435 crypto_blkcipher_set_iv(tfm, src, len)
436 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
437 crypto_blkcipher_get_iv(tfm, dst, len)
438 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
439 crypto_blkcipher_encrypt(desc, dst, src, bytes)
440 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
441 crypto_blkcipher_decrypt(desc, dst, src, bytes)
442 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
443 crypto_blkcipher_encrypt_iv(desc, dst, src, bytes)
444 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
445 crypto_blkcipher_decrypt_iv(desc, dst, src, bytes)
448 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char *name,
451 struct ll_crypto_cipher *rtn = crypto_alloc_blkcipher(name, type, mask);
453 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
456 static inline int ll_crypto_hmac(struct ll_crypto_hash *tfm,
457 u8 *key, unsigned int *keylen,
458 struct scatterlist *sg,
459 unsigned int size, u8 *result)
461 struct hash_desc desc;
465 rv = crypto_hash_setkey(desc.tfm, key, *keylen);
467 CERROR("failed to hash setkey: %d\n", rv);
470 return crypto_hash_digest(&desc, sg, size, result);
473 unsigned int ll_crypto_tfm_alg_max_keysize(struct crypto_blkcipher *tfm)
475 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.max_keysize;
478 unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
480 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
483 #define ll_crypto_hash_blocksize(tfm) crypto_hash_blocksize(tfm)
484 #define ll_crypto_hash_digestsize(tfm) crypto_hash_digestsize(tfm)
485 #define ll_crypto_blkcipher_ivsize(tfm) crypto_blkcipher_ivsize(tfm)
486 #define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
487 #define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
488 #define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
489 #else /* HAVE_ASYNC_BLOCK_CIPHER */
490 #include <linux/scatterlist.h>
491 #define ll_crypto_hash crypto_tfm
492 #define ll_crypto_cipher crypto_tfm
493 #ifndef HAVE_STRUCT_HASH_DESC
495 struct ll_crypto_hash *tfm;
499 #ifndef HAVE_STRUCT_BLKCIPHER_DESC
500 struct blkcipher_desc {
501 struct ll_crypto_cipher *tfm;
506 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
507 crypto_cipher_setkey(tfm, key, keylen)
508 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
509 crypto_cipher_set_iv(tfm, src, len)
510 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
511 crypto_cipher_get_iv(tfm, dst, len)
512 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
513 crypto_cipher_encrypt((desc)->tfm, dst, src, bytes)
514 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
515 crypto_cipher_decrypt((desc)->tfm, dst, src, bytes)
516 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
517 crypto_cipher_decrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
518 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
519 crypto_cipher_encrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
522 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char * algname,
525 struct ll_crypto_cipher *rtn;
526 char buf[CRYPTO_MAX_ALG_NAME + 1];
527 const char *pan = algname;
530 if (strncmp("cbc(", algname, 4) == 0)
531 flag |= CRYPTO_TFM_MODE_CBC;
532 else if (strncmp("ecb(", algname, 4) == 0)
533 flag |= CRYPTO_TFM_MODE_ECB;
535 char *vp = strnchr(algname, CRYPTO_MAX_ALG_NAME, ')');
537 memcpy(buf, algname + 4, vp - algname - 4);
538 buf[vp - algname - 4] = '\0';
544 rtn = crypto_alloc_tfm(pan, flag);
545 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
549 struct ll_crypto_hash *ll_crypto_alloc_hash(const char *alg, u32 type, u32 mask)
551 char buf[CRYPTO_MAX_ALG_NAME + 1];
552 const char *pan = alg;
554 if (strncmp("hmac(", alg, 5) == 0) {
555 char *vp = strnchr(alg, CRYPTO_MAX_ALG_NAME, ')');
557 memcpy(buf, alg+ 5, vp - alg- 5);
558 buf[vp - alg - 5] = 0x00;
562 return crypto_alloc_tfm(pan, 0);
564 static inline int ll_crypto_hash_init(struct hash_desc *desc)
566 crypto_digest_init(desc->tfm); return 0;
568 static inline int ll_crypto_hash_update(struct hash_desc *desc,
569 struct scatterlist *sg,
572 struct scatterlist *sl = sg;
575 * This way is very weakness. We must ensure that
576 * the sum of sg[0..i]->length isn't greater than nbytes.
577 * In the upstream kernel the crypto_hash_update() also
578 * via the nbytes computed the count of sg[...].
579 * The old style is more safely. but it gone.
581 for (count = 0; nbytes > 0; count ++, sl ++) {
582 nbytes -= sl->length;
584 crypto_digest_update(desc->tfm, sg, count); return 0;
586 static inline int ll_crypto_hash_final(struct hash_desc *desc, u8 *out)
588 crypto_digest_final(desc->tfm, out); return 0;
590 static inline int ll_crypto_hmac(struct crypto_tfm *tfm,
591 u8 *key, unsigned int *keylen,
592 struct scatterlist *sg,
596 struct scatterlist *sl = sg;
598 for (count = 0; nbytes > 0; count ++, sl ++) {
599 nbytes -= sl->length;
601 crypto_hmac(tfm, key, keylen, sg, count, out);
605 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_digest_setkey(tfm, key, keylen)
606 #define ll_crypto_blkcipher_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
607 #define ll_crypto_blkcipher_ivsize(tfm) crypto_tfm_alg_ivsize(tfm)
608 #define ll_crypto_hash_digestsize(tfm) crypto_tfm_alg_digestsize(tfm)
609 #define ll_crypto_hash_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
610 #define ll_crypto_free_hash(tfm) crypto_free_tfm(tfm)
611 #define ll_crypto_free_blkcipher(tfm) crypto_free_tfm(tfm)
612 #define ll_crypto_tfm_alg_min_keysize crypto_tfm_alg_min_keysize
613 #define ll_crypto_tfm_alg_max_keysize crypto_tfm_alg_max_keysize
614 #endif /* HAVE_ASYNC_BLOCK_CIPHER */
616 #ifdef HAVE_FILE_REMOVE_SUID
617 # define ll_remove_suid(file, mnt) file_remove_suid(file)
619 # ifdef HAVE_SECURITY_PLUG
620 # define ll_remove_suid(file,mnt) remove_suid(file->f_dentry,mnt)
622 # define ll_remove_suid(file,mnt) remove_suid(file->f_dentry)
626 #ifdef HAVE_SECURITY_PLUG
627 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry,mnt)
628 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mnt,mode)
629 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,mnt,dir,new,mnt1)
630 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry,mnt)
631 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) \
632 vfs_mknod(dir,entry,mnt,mode,dev)
633 #define ll_security_inode_unlink(dir,entry,mnt) \
634 security_inode_unlink(dir,entry,mnt)
635 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
636 vfs_rename(old,old_dir,mnt,new,new_dir,mnt1)
638 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
639 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
640 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
641 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
642 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
643 #define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
644 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
645 vfs_rename(old,old_dir,new,new_dir)
646 #endif /* HAVE_SECURITY_PLUG */
648 #ifdef for_each_possible_cpu
649 #define cfs_for_each_possible_cpu(cpu) for_each_possible_cpu(cpu)
650 #elif defined(for_each_cpu)
651 #define cfs_for_each_possible_cpu(cpu) for_each_cpu(cpu)
654 #ifdef HAVE_BIO_ENDIO_2ARG
655 #define cfs_bio_io_error(a,b) bio_io_error((a))
656 #define cfs_bio_endio(a,b,c) bio_endio((a),(c))
658 #define cfs_bio_io_error(a,b) bio_io_error((a),(b))
659 #define cfs_bio_endio(a,b,c) bio_endio((a),(b),(c))
662 #ifdef HAVE_FS_STRUCT_USE_PATH
663 #define cfs_fs_pwd(fs) ((fs)->pwd.dentry)
664 #define cfs_fs_mnt(fs) ((fs)->pwd.mnt)
665 #define cfs_path_put(nd) path_put(&(nd)->path)
667 #define cfs_fs_pwd(fs) ((fs)->pwd)
668 #define cfs_fs_mnt(fs) ((fs)->pwdmnt)
669 #define cfs_path_put(nd) path_release(nd)
673 static inline int abs(int x)
675 return (x < 0) ? -x : x;
680 static inline long labs(long x)
682 return (x < 0) ? -x : x;
684 #endif /* HAVE_REGISTER_SHRINKER */
686 #ifdef HAVE_INVALIDATE_INODE_PAGES
687 #define invalidate_mapping_pages(mapping,s,e) invalidate_inode_pages(mapping)
690 #ifdef HAVE_INODE_IPRIVATE
691 #define INODE_PRIVATE_DATA(inode) ((inode)->i_private)
693 #define INODE_PRIVATE_DATA(inode) ((inode)->u.generic_ip)
696 #ifndef HAVE_SIMPLE_SETATTR
697 #define simple_setattr(dentry, ops) inode_setattr((dentry)->d_inode, ops)
700 #ifndef SLAB_DESTROY_BY_RCU
701 #define CFS_SLAB_DESTROY_BY_RCU 0
703 #define CFS_SLAB_DESTROY_BY_RCU SLAB_DESTROY_BY_RCU
706 #ifdef HAVE_SB_HAS_QUOTA_ACTIVE
707 #define ll_sb_has_quota_active(sb, type) sb_has_quota_active(sb, type)
709 #define ll_sb_has_quota_active(sb, type) sb_has_quota_enabled(sb, type)
712 #ifdef HAVE_SB_ANY_QUOTA_LOADED
713 #define ll_sb_any_quota_active(sb) sb_any_quota_loaded(sb)
714 #elif defined(HAVE_SB_ANY_QUOTA_ACTIVE)
715 #define ll_sb_any_quota_active(sb) sb_any_quota_active(sb)
717 #define ll_sb_any_quota_active(sb) sb_any_quota_enabled(sb)
721 ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
725 if (sb->s_qcop->quota_on) {
726 #ifdef HAVE_QUOTA_ON_USE_PATH
729 rc = kern_path(name, LOOKUP_FOLLOW, &path);
733 rc = sb->s_qcop->quota_on(sb, off, ver
734 #ifdef HAVE_QUOTA_ON_USE_PATH
739 #ifdef HAVE_QUOTA_ON_5ARGS
743 #ifdef HAVE_QUOTA_ON_USE_PATH
752 static inline int ll_quota_off(struct super_block *sb, int off, int remount)
754 if (sb->s_qcop->quota_off) {
755 return sb->s_qcop->quota_off(sb, off
756 #ifdef HAVE_QUOTA_OFF_3ARGS
765 #ifndef HAVE_BLK_QUEUE_LOG_BLK_SIZE /* added in 2.6.31 */
766 #define blk_queue_logical_block_size(q, sz) blk_queue_hardsect_size(q, sz)
769 #ifndef HAVE_VFS_DQ_OFF
770 # define ll_vfs_dq_init DQUOT_INIT
771 # define ll_vfs_dq_drop DQUOT_DROP
772 # define ll_vfs_dq_transfer DQUOT_TRANSFER
773 # define ll_vfs_dq_off(sb, remount) DQUOT_OFF(sb)
775 # define ll_vfs_dq_init vfs_dq_init
776 # define ll_vfs_dq_drop vfs_dq_drop
777 # define ll_vfs_dq_transfer vfs_dq_transfer
778 # define ll_vfs_dq_off(sb, remount) vfs_dq_off(sb, remount)
782 #define ll_bdi_init(bdi) bdi_init(bdi)
783 #define ll_bdi_destroy(bdi) bdi_destroy(bdi)
785 #define ll_bdi_init(bdi) 0
786 #define ll_bdi_destroy(bdi) do { } while(0)
789 #ifdef HAVE_NEW_BACKING_DEV_INFO
790 # define ll_bdi_wb_cnt(bdi) ((bdi).wb_cnt)
792 # define ll_bdi_wb_cnt(bdi) 1
795 #ifdef HAVE_BLK_QUEUE_MAX_SECTORS /* removed in rhel6 */
796 #define blk_queue_max_hw_sectors(q, sect) blk_queue_max_sectors(q, sect)
799 #ifndef HAVE_BLKDEV_GET_BY_DEV
800 # define blkdev_get_by_dev(dev, mode, holder) open_by_devnum(dev, mode)
803 #ifndef HAVE_REQUEST_QUEUE_LIMITS
804 #define queue_max_sectors(rq) ((rq)->max_sectors)
805 #define queue_max_hw_sectors(rq) ((rq)->max_hw_sectors)
806 #define queue_max_phys_segments(rq) ((rq)->max_phys_segments)
807 #define queue_max_hw_segments(rq) ((rq)->max_hw_segments)
810 #ifndef HAVE_BLK_QUEUE_MAX_SEGMENTS
811 #define blk_queue_max_segments(rq, seg) \
812 do { blk_queue_max_phys_segments(rq, seg); \
813 blk_queue_max_hw_segments(rq, seg); } while (0)
815 #define queue_max_phys_segments(rq) queue_max_segments(rq)
816 #define queue_max_hw_segments(rq) queue_max_segments(rq)
820 #ifndef HAVE_BI_HW_SEGMENTS
821 #define bio_hw_segments(q, bio) 0
824 #ifndef HAVE_PAGEVEC_LRU_ADD_FILE
825 #define pagevec_lru_add_file pagevec_lru_add
828 #ifdef HAVE_ADD_TO_PAGE_CACHE_LRU
829 #define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
830 add_to_page_cache_lru(pg, mapping, off, gfp)
831 #define ll_pagevec_init(pv, cold) do {} while (0)
832 #define ll_pagevec_add(pv, pg) (0)
833 #define ll_pagevec_lru_add_file(pv) do {} while (0)
835 #define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
836 add_to_page_cache(pg, mapping, off, gfp)
837 #define ll_pagevec_init(pv, cold) pagevec_init(&lru_pvec, cold);
838 #define ll_pagevec_add(pv, pg) pagevec_add(pv, pg)
839 #define ll_pagevec_lru_add_file(pv) pagevec_lru_add_file(pv)
842 #if !defined(HAVE_NODE_TO_CPUMASK) && defined(HAVE_CPUMASK_OF_NODE)
843 #define node_to_cpumask(i) (*(cpumask_of_node(i)))
844 #define HAVE_NODE_TO_CPUMASK
851 # define NO_QUOTA (-EDQUOT)
854 #if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
855 # define ext2_set_bit __test_and_set_bit_le
856 # define ext2_clear_bit __test_and_clear_bit_le
857 # define ext2_test_bit test_bit_le
858 # define ext2_find_first_zero_bit find_first_zero_bit_le
859 # define ext2_find_next_zero_bit find_next_zero_bit_le
862 #ifdef ATTR_TIMES_SET
863 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
865 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
868 #ifndef HAVE_SELINUX_IS_ENABLED
869 static inline bool selinux_is_enabled(void)
875 #endif /* __KERNEL__ */
876 #endif /* _COMPAT25_H */