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 #include <linux/fs_struct.h>
43 #include <linux/namei.h>
44 #include <libcfs/linux/portals_compat25.h>
46 #include <linux/lustre_patchless_compat.h>
48 /* Some old kernels (like 2.6.9) may not define such SEEK_XXX. So the
49 * definition allows to compile lustre client on more OS platforms. */
56 #ifdef HAVE_FS_STRUCT_RWLOCK
57 # define LOCK_FS_STRUCT(fs) cfs_write_lock(&(fs)->lock)
58 # define UNLOCK_FS_STRUCT(fs) cfs_write_unlock(&(fs)->lock)
60 # define LOCK_FS_STRUCT(fs) cfs_spin_lock(&(fs)->lock)
61 # define UNLOCK_FS_STRUCT(fs) cfs_spin_unlock(&(fs)->lock)
64 #ifdef HAVE_FS_STRUCT_USE_PATH
65 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
66 struct dentry *dentry)
85 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
86 struct dentry *dentry)
88 struct dentry *old_pwd;
89 struct vfsmount *old_pwdmnt;
93 old_pwdmnt = fs->pwdmnt;
94 fs->pwdmnt = mntget(mnt);
95 fs->pwd = dget(dentry);
106 * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
107 * ATTR_* attributes (see bug 13828)
109 #define ATTR_BLOCKS (1 << 27)
111 #define current_ngroups current_cred()->group_info->ngroups
112 #define current_groups current_cred()->group_info->small_block
115 #define page_private(page) ((page)->private)
116 #define set_page_private(page, v) ((page)->private = (v))
119 #define ll_kernel_locked() kernel_locked()
122 * OBD need working random driver, thus all our
123 * initialization routines must be called after device
124 * driver initialization
128 #define module_init(a) late_initcall(a)
131 /* XXX our code should be using the 2.6 calls, not the other way around */
132 #ifdef HAVE_TRYLOCK_PAGE
133 #define TestSetPageLocked(page) (!trylock_page(page))
136 #define Page_Uptodate(page) PageUptodate(page)
137 #define ll_redirty_page(page) set_page_dirty(page)
139 #define KDEVT_INIT(val) (val)
141 #define LTIME_S(time) (time.tv_sec)
142 #define ll_path_lookup path_lookup
144 #ifdef HAVE_EXPORT_INODE_PERMISSION
145 #define ll_permission(inode,mask,nd) inode_permission(inode,mask)
147 #define ll_permission(inode,mask,nd) permission(inode,mask,nd)
150 #ifdef HAVE_GENERIC_PERMISSION_4ARGS
151 #define ll_generic_permission(inode, mask, flags, check_acl) \
152 generic_permission(inode, mask, flags, check_acl)
154 #define ll_generic_permission(inode, mask, flags, check_acl) \
155 generic_permission(inode, mask, check_acl)
158 #define ll_pgcache_lock(mapping) cfs_spin_lock(&mapping->page_lock)
159 #define ll_pgcache_unlock(mapping) cfs_spin_unlock(&mapping->page_lock)
160 #define ll_call_writepage(inode, page) \
161 (inode)->i_mapping->a_ops->writepage(page, NULL)
162 #define ll_invalidate_inode_pages(inode) \
163 invalidate_inode_pages((inode)->i_mapping)
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)
172 #ifdef HAVE_BLKDEV_PUT_2ARGS
173 #define ll_blkdev_put(a, b) blkdev_put(a, b)
175 #define ll_blkdev_put(a, b) blkdev_put(a)
178 #ifdef HAVE_DENTRY_OPEN_4ARGS
179 #define ll_dentry_open(a, b, c, d) dentry_open(a, b, c, d)
181 #define ll_dentry_open(a, b, c, d) dentry_open(a, b, c)
184 #include <linux/writeback.h>
186 static inline int cfs_cleanup_group_info(void)
188 struct group_info *ginfo;
190 ginfo = groups_alloc(0);
194 set_current_groups(ginfo);
195 put_group_info(ginfo);
200 #define __set_page_ll_data(page, llap) \
202 page_cache_get(page); \
203 SetPagePrivate(page); \
204 set_page_private(page, (unsigned long)llap); \
206 #define __clear_page_ll_data(page) \
208 ClearPagePrivate(page); \
209 set_page_private(page, 0); \
210 page_cache_release(page); \
215 #include <linux/proc_fs.h>
217 #define CheckWriteback(page, cmd) \
218 ((!PageWriteback(page) && (cmd & OBD_BRW_READ)) || \
219 (PageWriteback(page) && (cmd & OBD_BRW_WRITE)))
221 #ifdef HAVE_PAGE_LIST
222 static inline int mapping_has_pages(struct address_space *mapping)
226 ll_pgcache_lock(mapping);
227 if (cfs_list_empty(&mapping->dirty_pages) &&
228 cfs_list_empty(&mapping->clean_pages) &&
229 cfs_list_empty(&mapping->locked_pages)) {
232 ll_pgcache_unlock(mapping);
237 static inline int mapping_has_pages(struct address_space *mapping)
239 return mapping->nrpages > 0;
243 #ifdef HAVE_KIOBUF_KIO_BLOCKS
244 #define KIOBUF_GET_BLOCKS(k) ((k)->kio_blocks)
246 #define KIOBUF_GET_BLOCKS(k) ((k)->blocks)
249 #ifdef HAVE_SECURITY_PLUG
250 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
251 vfs_symlink(dir, dentry, mnt, path, mode)
253 #ifdef HAVE_4ARGS_VFS_SYMLINK
254 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
255 vfs_symlink(dir, dentry, path, mode)
257 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
258 vfs_symlink(dir, dentry, path)
264 #define container_of(ptr, type, member) ({ \
265 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
266 (type *)( (char *)__mptr - offsetof(type,member) );})
269 #define UP_WRITE_I_ALLOC_SEM(i) up_write(&(i)->i_alloc_sem)
270 #define DOWN_WRITE_I_ALLOC_SEM(i) down_write(&(i)->i_alloc_sem)
271 #define LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) LASSERT(down_read_trylock(&(i)->i_alloc_sem) == 0)
273 #define UP_READ_I_ALLOC_SEM(i) up_read(&(i)->i_alloc_sem)
274 #define DOWN_READ_I_ALLOC_SEM(i) down_read(&(i)->i_alloc_sem)
275 #define LASSERT_I_ALLOC_SEM_READ_LOCKED(i) LASSERT(down_write_trylock(&(i)->i_alloc_sem) == 0)
277 #include <linux/mpage.h> /* for generic_writepages */
279 #ifdef HAVE_HIDE_VFSMOUNT_GUTS
280 # include <../fs/mount.h>
282 # define real_mount(mnt) (mnt)
285 static inline const char *mnt_get_devname(struct vfsmount *mnt)
287 return real_mount(mnt)->mnt_devname;
290 #ifndef HAVE_ATOMIC_MNT_COUNT
291 static inline unsigned int mnt_get_count(struct vfsmount *mnt)
294 unsigned int count = 0;
297 for_each_possible_cpu(cpu) {
298 count += per_cpu_ptr(real_mount(mnt)->mnt_pcp, cpu)->mnt_count;
303 return real_mount(mnt)->mnt_count;
307 # define mnt_get_count(mnt) cfs_atomic_read(&(real_mount(mnt)->mnt_count))
310 #ifdef HAVE_RW_TREE_LOCK
311 #define TREE_READ_LOCK_IRQ(mapping) read_lock_irq(&(mapping)->tree_lock)
312 #define TREE_READ_UNLOCK_IRQ(mapping) read_unlock_irq(&(mapping)->tree_lock)
314 #define TREE_READ_LOCK_IRQ(mapping) cfs_spin_lock_irq(&(mapping)->tree_lock)
315 #define TREE_READ_UNLOCK_IRQ(mapping) cfs_spin_unlock_irq(&(mapping)->tree_lock)
318 #ifdef HAVE_UNREGISTER_BLKDEV_RETURN_INT
319 #define ll_unregister_blkdev(a,b) unregister_blkdev((a),(b))
322 int ll_unregister_blkdev(unsigned int dev, const char *name)
324 unregister_blkdev(dev, name);
329 #ifdef HAVE_INVALIDATE_BDEV_2ARG
330 #define ll_invalidate_bdev(a,b) invalidate_bdev((a),(b))
332 #define ll_invalidate_bdev(a,b) invalidate_bdev((a))
335 #ifdef HAVE_INODE_BLKSIZE
336 #define ll_inode_blksize(a) (a)->i_blksize
338 #define ll_inode_blksize(a) (1<<(a)->i_blkbits)
341 #ifdef HAVE_FS_RENAME_DOES_D_MOVE
342 #define LL_RENAME_DOES_D_MOVE FS_RENAME_DOES_D_MOVE
344 #define LL_RENAME_DOES_D_MOVE FS_ODD_RENAME
347 #ifndef HAVE_D_OBTAIN_ALIAS
348 /* The old d_alloc_anon() didn't free the inode reference on error
349 * like d_obtain_alias(). Hide that difference/inconvenience here. */
350 static inline struct dentry *d_obtain_alias(struct inode *inode)
352 struct dentry *anon = d_alloc_anon(inode);
356 anon = ERR_PTR(-ENOMEM);
363 /* add a lustre compatible layer for crypto API */
364 #include <linux/crypto.h>
365 #ifdef HAVE_ASYNC_BLOCK_CIPHER
366 #define ll_crypto_hash crypto_hash
367 #define ll_crypto_cipher crypto_blkcipher
368 #define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
369 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_hash_setkey(tfm, key, keylen)
370 #define ll_crypto_hash_init(desc) crypto_hash_init(desc)
371 #define ll_crypto_hash_update(desc, sl, bytes) crypto_hash_update(desc, sl, bytes)
372 #define ll_crypto_hash_final(desc, out) crypto_hash_final(desc, out)
373 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
374 crypto_blkcipher_setkey(tfm, key, keylen)
375 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
376 crypto_blkcipher_set_iv(tfm, src, len)
377 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
378 crypto_blkcipher_get_iv(tfm, dst, len)
379 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
380 crypto_blkcipher_encrypt(desc, dst, src, bytes)
381 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
382 crypto_blkcipher_decrypt(desc, dst, src, bytes)
383 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
384 crypto_blkcipher_encrypt_iv(desc, dst, src, bytes)
385 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
386 crypto_blkcipher_decrypt_iv(desc, dst, src, bytes)
389 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char *name,
392 struct ll_crypto_cipher *rtn = crypto_alloc_blkcipher(name, type, mask);
394 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
397 static inline int ll_crypto_hmac(struct ll_crypto_hash *tfm,
398 u8 *key, unsigned int *keylen,
399 struct scatterlist *sg,
400 unsigned int size, u8 *result)
402 struct hash_desc desc;
406 rv = crypto_hash_setkey(desc.tfm, key, *keylen);
408 CERROR("failed to hash setkey: %d\n", rv);
411 return crypto_hash_digest(&desc, sg, size, result);
414 unsigned int ll_crypto_tfm_alg_max_keysize(struct crypto_blkcipher *tfm)
416 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.max_keysize;
419 unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
421 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
424 #define ll_crypto_hash_blocksize(tfm) crypto_hash_blocksize(tfm)
425 #define ll_crypto_hash_digestsize(tfm) crypto_hash_digestsize(tfm)
426 #define ll_crypto_blkcipher_ivsize(tfm) crypto_blkcipher_ivsize(tfm)
427 #define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
428 #define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
429 #define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
430 #else /* HAVE_ASYNC_BLOCK_CIPHER */
431 #include <linux/scatterlist.h>
432 #define ll_crypto_hash crypto_tfm
433 #define ll_crypto_cipher crypto_tfm
434 #ifndef HAVE_STRUCT_HASH_DESC
436 struct ll_crypto_hash *tfm;
440 #ifndef HAVE_STRUCT_BLKCIPHER_DESC
441 struct blkcipher_desc {
442 struct ll_crypto_cipher *tfm;
447 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
448 crypto_cipher_setkey(tfm, key, keylen)
449 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
450 crypto_cipher_set_iv(tfm, src, len)
451 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
452 crypto_cipher_get_iv(tfm, dst, len)
453 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
454 crypto_cipher_encrypt((desc)->tfm, dst, src, bytes)
455 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
456 crypto_cipher_decrypt((desc)->tfm, dst, src, bytes)
457 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
458 crypto_cipher_decrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
459 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
460 crypto_cipher_encrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
463 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char * algname,
466 struct ll_crypto_cipher *rtn;
467 char buf[CRYPTO_MAX_ALG_NAME + 1];
468 const char *pan = algname;
471 if (strncmp("cbc(", algname, 4) == 0)
472 flag |= CRYPTO_TFM_MODE_CBC;
473 else if (strncmp("ecb(", algname, 4) == 0)
474 flag |= CRYPTO_TFM_MODE_ECB;
476 char *vp = strnchr(algname, CRYPTO_MAX_ALG_NAME, ')');
478 memcpy(buf, algname + 4, vp - algname - 4);
479 buf[vp - algname - 4] = '\0';
485 rtn = crypto_alloc_tfm(pan, flag);
486 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
490 struct ll_crypto_hash *ll_crypto_alloc_hash(const char *alg, u32 type, u32 mask)
492 char buf[CRYPTO_MAX_ALG_NAME + 1];
493 const char *pan = alg;
495 if (strncmp("hmac(", alg, 5) == 0) {
496 char *vp = strnchr(alg, CRYPTO_MAX_ALG_NAME, ')');
498 memcpy(buf, alg+ 5, vp - alg- 5);
499 buf[vp - alg - 5] = 0x00;
503 return crypto_alloc_tfm(pan, 0);
505 static inline int ll_crypto_hash_init(struct hash_desc *desc)
507 crypto_digest_init(desc->tfm); return 0;
509 static inline int ll_crypto_hash_update(struct hash_desc *desc,
510 struct scatterlist *sg,
513 struct scatterlist *sl = sg;
516 * This way is very weakness. We must ensure that
517 * the sum of sg[0..i]->length isn't greater than nbytes.
518 * In the upstream kernel the crypto_hash_update() also
519 * via the nbytes computed the count of sg[...].
520 * The old style is more safely. but it gone.
522 for (count = 0; nbytes > 0; count ++, sl ++) {
523 nbytes -= sl->length;
525 crypto_digest_update(desc->tfm, sg, count); return 0;
527 static inline int ll_crypto_hash_final(struct hash_desc *desc, u8 *out)
529 crypto_digest_final(desc->tfm, out); return 0;
531 static inline int ll_crypto_hmac(struct crypto_tfm *tfm,
532 u8 *key, unsigned int *keylen,
533 struct scatterlist *sg,
537 struct scatterlist *sl = sg;
539 for (count = 0; nbytes > 0; count ++, sl ++) {
540 nbytes -= sl->length;
542 crypto_hmac(tfm, key, keylen, sg, count, out);
546 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_digest_setkey(tfm, key, keylen)
547 #define ll_crypto_blkcipher_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
548 #define ll_crypto_blkcipher_ivsize(tfm) crypto_tfm_alg_ivsize(tfm)
549 #define ll_crypto_hash_digestsize(tfm) crypto_tfm_alg_digestsize(tfm)
550 #define ll_crypto_hash_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
551 #define ll_crypto_free_hash(tfm) crypto_free_tfm(tfm)
552 #define ll_crypto_free_blkcipher(tfm) crypto_free_tfm(tfm)
553 #define ll_crypto_tfm_alg_min_keysize crypto_tfm_alg_min_keysize
554 #define ll_crypto_tfm_alg_max_keysize crypto_tfm_alg_max_keysize
555 #endif /* HAVE_ASYNC_BLOCK_CIPHER */
557 #ifdef HAVE_FILE_REMOVE_SUID
558 # define ll_remove_suid(file, mnt) file_remove_suid(file)
560 # ifdef HAVE_SECURITY_PLUG
561 # define ll_remove_suid(file,mnt) remove_suid(file->f_dentry,mnt)
563 # define ll_remove_suid(file,mnt) remove_suid(file->f_dentry)
567 #ifdef HAVE_SECURITY_PLUG
568 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry,mnt)
569 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mnt,mode)
570 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,mnt,dir,new,mnt1)
571 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry,mnt)
572 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) \
573 vfs_mknod(dir,entry,mnt,mode,dev)
574 #define ll_security_inode_unlink(dir,entry,mnt) \
575 security_inode_unlink(dir,entry,mnt)
576 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
577 vfs_rename(old,old_dir,mnt,new,new_dir,mnt1)
579 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
580 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
581 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
582 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
583 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
584 #define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
585 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
586 vfs_rename(old,old_dir,new,new_dir)
587 #endif /* HAVE_SECURITY_PLUG */
589 #ifdef for_each_possible_cpu
590 #define cfs_for_each_possible_cpu(cpu) for_each_possible_cpu(cpu)
591 #elif defined(for_each_cpu)
592 #define cfs_for_each_possible_cpu(cpu) for_each_cpu(cpu)
595 #ifdef HAVE_BIO_ENDIO_2ARG
596 #define cfs_bio_io_error(a,b) bio_io_error((a))
597 #define cfs_bio_endio(a,b,c) bio_endio((a),(c))
599 #define cfs_bio_io_error(a,b) bio_io_error((a),(b))
600 #define cfs_bio_endio(a,b,c) bio_endio((a),(b),(c))
603 #ifdef HAVE_FS_STRUCT_USE_PATH
604 #define cfs_fs_pwd(fs) ((fs)->pwd.dentry)
605 #define cfs_fs_mnt(fs) ((fs)->pwd.mnt)
606 #define cfs_path_put(nd) path_put(&(nd)->path)
608 #define cfs_fs_pwd(fs) ((fs)->pwd)
609 #define cfs_fs_mnt(fs) ((fs)->pwdmnt)
610 #define cfs_path_put(nd) path_release(nd)
614 static inline int abs(int x)
616 return (x < 0) ? -x : x;
621 static inline long labs(long x)
623 return (x < 0) ? -x : x;
625 #endif /* HAVE_REGISTER_SHRINKER */
627 #ifndef HAVE_SIMPLE_SETATTR
628 #define simple_setattr(dentry, ops) inode_setattr((dentry)->d_inode, ops)
631 #ifndef SLAB_DESTROY_BY_RCU
632 #define CFS_SLAB_DESTROY_BY_RCU 0
634 #define CFS_SLAB_DESTROY_BY_RCU SLAB_DESTROY_BY_RCU
637 #ifdef HAVE_SB_HAS_QUOTA_ACTIVE
638 #define ll_sb_has_quota_active(sb, type) sb_has_quota_active(sb, type)
640 #define ll_sb_has_quota_active(sb, type) sb_has_quota_enabled(sb, type)
643 #ifdef HAVE_SB_ANY_QUOTA_LOADED
644 #define ll_sb_any_quota_active(sb) sb_any_quota_loaded(sb)
645 #elif defined(HAVE_SB_ANY_QUOTA_ACTIVE)
646 #define ll_sb_any_quota_active(sb) sb_any_quota_active(sb)
648 #define ll_sb_any_quota_active(sb) sb_any_quota_enabled(sb)
652 ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
656 if (sb->s_qcop->quota_on) {
657 #ifdef HAVE_QUOTA_ON_USE_PATH
660 rc = kern_path(name, LOOKUP_FOLLOW, &path);
664 rc = sb->s_qcop->quota_on(sb, off, ver
665 #ifdef HAVE_QUOTA_ON_USE_PATH
670 #ifdef HAVE_QUOTA_ON_5ARGS
674 #ifdef HAVE_QUOTA_ON_USE_PATH
683 static inline int ll_quota_off(struct super_block *sb, int off, int remount)
685 if (sb->s_qcop->quota_off) {
686 return sb->s_qcop->quota_off(sb, off
687 #ifdef HAVE_QUOTA_OFF_3ARGS
696 #ifndef HAVE_BLK_QUEUE_LOG_BLK_SIZE /* added in 2.6.31 */
697 #define blk_queue_logical_block_size(q, sz) blk_queue_hardsect_size(q, sz)
700 #ifndef HAVE_VFS_DQ_OFF
701 # define ll_vfs_dq_init DQUOT_INIT
702 # define ll_vfs_dq_drop DQUOT_DROP
703 # define ll_vfs_dq_transfer DQUOT_TRANSFER
704 # define ll_vfs_dq_off(sb, remount) DQUOT_OFF(sb)
706 # define ll_vfs_dq_init vfs_dq_init
707 # define ll_vfs_dq_drop vfs_dq_drop
708 # define ll_vfs_dq_transfer vfs_dq_transfer
709 # define ll_vfs_dq_off(sb, remount) vfs_dq_off(sb, remount)
713 #define ll_bdi_init(bdi) bdi_init(bdi)
714 #define ll_bdi_destroy(bdi) bdi_destroy(bdi)
716 #define ll_bdi_init(bdi) 0
717 #define ll_bdi_destroy(bdi) do { } while(0)
720 #ifdef HAVE_NEW_BACKING_DEV_INFO
721 # define ll_bdi_wb_cnt(bdi) ((bdi).wb_cnt)
723 # define ll_bdi_wb_cnt(bdi) 1
726 #ifdef HAVE_BLK_QUEUE_MAX_SECTORS /* removed in rhel6 */
727 #define blk_queue_max_hw_sectors(q, sect) blk_queue_max_sectors(q, sect)
730 #ifndef HAVE_BLKDEV_GET_BY_DEV
731 # define blkdev_get_by_dev(dev, mode, holder) open_by_devnum(dev, mode)
734 #ifndef HAVE_REQUEST_QUEUE_LIMITS
735 #define queue_max_sectors(rq) ((rq)->max_sectors)
736 #define queue_max_hw_sectors(rq) ((rq)->max_hw_sectors)
737 #define queue_max_phys_segments(rq) ((rq)->max_phys_segments)
738 #define queue_max_hw_segments(rq) ((rq)->max_hw_segments)
741 #ifndef HAVE_BLK_QUEUE_MAX_SEGMENTS
742 #define blk_queue_max_segments(rq, seg) \
743 do { blk_queue_max_phys_segments(rq, seg); \
744 blk_queue_max_hw_segments(rq, seg); } while (0)
746 #define queue_max_phys_segments(rq) queue_max_segments(rq)
747 #define queue_max_hw_segments(rq) queue_max_segments(rq)
751 #ifndef HAVE_BI_HW_SEGMENTS
752 #define bio_hw_segments(q, bio) 0
755 #ifndef HAVE_PAGEVEC_LRU_ADD_FILE
756 #define pagevec_lru_add_file pagevec_lru_add
759 #ifdef HAVE_ADD_TO_PAGE_CACHE_LRU
760 #define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
761 add_to_page_cache_lru(pg, mapping, off, gfp)
762 #define ll_pagevec_init(pv, cold) do {} while (0)
763 #define ll_pagevec_add(pv, pg) (0)
764 #define ll_pagevec_lru_add_file(pv) do {} while (0)
766 #define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
767 add_to_page_cache(pg, mapping, off, gfp)
768 #define ll_pagevec_init(pv, cold) pagevec_init(&lru_pvec, cold);
769 #define ll_pagevec_add(pv, pg) \
773 page_cache_get(pg); \
774 __ret = pagevec_add(pv, pg); \
776 #define ll_pagevec_lru_add_file(pv) pagevec_lru_add_file(pv)
779 #if !defined(HAVE_NODE_TO_CPUMASK) && defined(HAVE_CPUMASK_OF_NODE)
780 #define node_to_cpumask(i) (*(cpumask_of_node(i)))
781 #define HAVE_NODE_TO_CPUMASK
788 # define NO_QUOTA (-EDQUOT)
791 #if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
792 # define ext2_set_bit __test_and_set_bit_le
793 # define ext2_clear_bit __test_and_clear_bit_le
794 # define ext2_test_bit test_bit_le
795 # define ext2_find_first_zero_bit find_first_zero_bit_le
796 # define ext2_find_next_zero_bit find_next_zero_bit_le
799 #ifdef ATTR_TIMES_SET
800 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
802 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
805 #ifndef HAVE_SELINUX_IS_ENABLED
806 static inline bool selinux_is_enabled(void)
812 #endif /* __KERNEL__ */
813 #endif /* _COMPAT25_H */