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
40 #include <linux/fs_struct.h>
41 #include <linux/namei.h>
42 #include <libcfs/linux/portals_compat25.h>
44 #include <linux/lustre_patchless_compat.h>
46 #ifdef HAVE_FS_STRUCT_RWLOCK
47 # define LOCK_FS_STRUCT(fs) write_lock(&(fs)->lock)
48 # define UNLOCK_FS_STRUCT(fs) write_unlock(&(fs)->lock)
50 # define LOCK_FS_STRUCT(fs) spin_lock(&(fs)->lock)
51 # define UNLOCK_FS_STRUCT(fs) spin_unlock(&(fs)->lock)
54 #ifdef HAVE_FS_STRUCT_USE_PATH
55 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
56 struct dentry *dentry)
75 static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
76 struct dentry *dentry)
78 struct dentry *old_pwd;
79 struct vfsmount *old_pwdmnt;
83 old_pwdmnt = fs->pwdmnt;
84 fs->pwdmnt = mntget(mnt);
85 fs->pwd = dget(dentry);
96 * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
97 * ATTR_* attributes (see bug 13828)
99 #define ATTR_BLOCKS (1 << 27)
101 #define current_ngroups current_cred()->group_info->ngroups
102 #define current_groups current_cred()->group_info->small_block
105 * OBD need working random driver, thus all our
106 * initialization routines must be called after device
107 * driver initialization
111 #define module_init(a) late_initcall(a)
114 #ifndef HAVE_TRYLOCK_PAGE
115 #define trylock_page(page) (!TestSetPageLocked(page))
118 #define LTIME_S(time) (time.tv_sec)
120 #ifdef HAVE_EXPORT_INODE_PERMISSION
121 #define ll_permission(inode,mask,nd) inode_permission(inode,mask)
123 #define ll_permission(inode,mask,nd) permission(inode,mask,nd)
126 #ifdef HAVE_GENERIC_PERMISSION_2ARGS
127 # define ll_generic_permission(inode, mask, flags, check_acl) \
128 generic_permission(inode, mask)
129 #elif defined HAVE_GENERIC_PERMISSION_4ARGS
130 # define ll_generic_permission(inode, mask, flags, check_acl) \
131 generic_permission(inode, mask, flags, check_acl)
133 # define ll_generic_permission(inode, mask, flags, check_acl) \
134 generic_permission(inode, mask, check_acl)
137 #ifdef HAVE_BLKDEV_PUT_2ARGS
138 #define ll_blkdev_put(a, b) blkdev_put(a, b)
140 #define ll_blkdev_put(a, b) blkdev_put(a)
143 #ifdef HAVE_DENTRY_OPEN_4ARGS
144 #define ll_dentry_open(a, b, c, d) dentry_open(a, b, c, d)
146 #define ll_dentry_open(a, b, c, d) dentry_open(a, b, c)
149 #ifdef HAVE_KIOBUF_KIO_BLOCKS
150 #define KIOBUF_GET_BLOCKS(k) ((k)->kio_blocks)
152 #define KIOBUF_GET_BLOCKS(k) ((k)->blocks)
155 #ifdef HAVE_SECURITY_PLUG
156 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
157 vfs_symlink(dir, dentry, mnt, path, mode)
159 #ifdef HAVE_4ARGS_VFS_SYMLINK
160 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
161 vfs_symlink(dir, dentry, path, mode)
163 #define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
164 vfs_symlink(dir, dentry, path)
170 #define container_of(ptr, type, member) ({ \
171 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
172 (type *)( (char *)__mptr - offsetof(type,member) );})
175 #ifdef HAVE_INODE_DIO_WAIT
176 /* inode_dio_wait(i) use as-is for write lock */
177 # define inode_dio_write_done(i) do {} while (0) /* for write unlock */
178 # define inode_dio_read(i) atomic_inc(&(i)->i_dio_count)
179 /* inode_dio_done(i) use as-is for read unlock */
181 # define inode_dio_wait(i) down_write(&(i)->i_alloc_sem)
182 # define inode_dio_write_done(i) up_write(&(i)->i_alloc_sem)
183 # define inode_dio_read(i) down_read(&(i)->i_alloc_sem)
184 # define inode_dio_done(i) up_read(&(i)->i_alloc_sem)
187 #include <linux/mpage.h> /* for generic_writepages */
189 #ifdef HAVE_HIDE_VFSMOUNT_GUTS
190 # include <../fs/mount.h>
192 # define real_mount(mnt) (mnt)
195 static inline const char *mnt_get_devname(struct vfsmount *mnt)
197 return real_mount(mnt)->mnt_devname;
200 #ifndef HAVE_ATOMIC_MNT_COUNT
201 static inline unsigned int mnt_get_count(struct vfsmount *mnt)
204 unsigned int count = 0;
207 for_each_possible_cpu(cpu) {
208 count += per_cpu_ptr(real_mount(mnt)->mnt_pcp, cpu)->mnt_count;
213 return real_mount(mnt)->mnt_count;
217 # define mnt_get_count(mnt) cfs_atomic_read(&(real_mount(mnt)->mnt_count))
220 #ifdef HAVE_RW_TREE_LOCK
221 #define TREE_READ_LOCK_IRQ(mapping) read_lock_irq(&(mapping)->tree_lock)
222 #define TREE_READ_UNLOCK_IRQ(mapping) read_unlock_irq(&(mapping)->tree_lock)
224 #define TREE_READ_LOCK_IRQ(mapping) spin_lock_irq(&(mapping)->tree_lock)
225 #define TREE_READ_UNLOCK_IRQ(mapping) spin_unlock_irq(&(mapping)->tree_lock)
228 #ifdef HAVE_UNREGISTER_BLKDEV_RETURN_INT
229 #define ll_unregister_blkdev(a,b) unregister_blkdev((a),(b))
232 int ll_unregister_blkdev(unsigned int dev, const char *name)
234 unregister_blkdev(dev, name);
239 #ifdef HAVE_INVALIDATE_BDEV_2ARG
240 #define ll_invalidate_bdev(a,b) invalidate_bdev((a),(b))
242 #define ll_invalidate_bdev(a,b) invalidate_bdev((a))
245 #ifndef FS_HAS_FIEMAP
246 #define FS_HAS_FIEMAP (0)
249 #ifndef HAVE_FS_RENAME_DOES_D_MOVE
250 #define FS_RENAME_DOES_D_MOVE FS_ODD_RENAME
253 #ifndef HAVE_D_OBTAIN_ALIAS
254 /* The old d_alloc_anon() didn't free the inode reference on error
255 * like d_obtain_alias(). Hide that difference/inconvenience here. */
256 static inline struct dentry *d_obtain_alias(struct inode *inode)
258 struct dentry *anon = d_alloc_anon(inode);
262 anon = ERR_PTR(-ENOMEM);
269 /* add a lustre compatible layer for crypto API */
270 #include <linux/crypto.h>
271 #ifdef HAVE_ASYNC_BLOCK_CIPHER
272 #define ll_crypto_hash crypto_hash
273 #define ll_crypto_cipher crypto_blkcipher
274 #define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
275 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_hash_setkey(tfm, key, keylen)
276 #define ll_crypto_hash_init(desc) crypto_hash_init(desc)
277 #define ll_crypto_hash_update(desc, sl, bytes) crypto_hash_update(desc, sl, bytes)
278 #define ll_crypto_hash_final(desc, out) crypto_hash_final(desc, out)
279 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
280 crypto_blkcipher_setkey(tfm, key, keylen)
281 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
282 crypto_blkcipher_set_iv(tfm, src, len)
283 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
284 crypto_blkcipher_get_iv(tfm, dst, len)
285 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
286 crypto_blkcipher_encrypt(desc, dst, src, bytes)
287 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
288 crypto_blkcipher_decrypt(desc, dst, src, bytes)
289 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
290 crypto_blkcipher_encrypt_iv(desc, dst, src, bytes)
291 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
292 crypto_blkcipher_decrypt_iv(desc, dst, src, bytes)
295 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char *name,
298 struct ll_crypto_cipher *rtn = crypto_alloc_blkcipher(name, type, mask);
300 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
303 static inline int ll_crypto_hmac(struct ll_crypto_hash *tfm,
304 u8 *key, unsigned int *keylen,
305 struct scatterlist *sg,
306 unsigned int size, u8 *result)
308 struct hash_desc desc;
312 rv = crypto_hash_setkey(desc.tfm, key, *keylen);
314 CERROR("failed to hash setkey: %d\n", rv);
317 return crypto_hash_digest(&desc, sg, size, result);
320 unsigned int ll_crypto_tfm_alg_max_keysize(struct crypto_blkcipher *tfm)
322 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.max_keysize;
325 unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
327 return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
330 #define ll_crypto_hash_blocksize(tfm) crypto_hash_blocksize(tfm)
331 #define ll_crypto_hash_digestsize(tfm) crypto_hash_digestsize(tfm)
332 #define ll_crypto_blkcipher_ivsize(tfm) crypto_blkcipher_ivsize(tfm)
333 #define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
334 #define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
335 #define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
336 #else /* HAVE_ASYNC_BLOCK_CIPHER */
337 #include <linux/scatterlist.h>
338 #define ll_crypto_hash crypto_tfm
339 #define ll_crypto_cipher crypto_tfm
340 #ifndef HAVE_STRUCT_HASH_DESC
342 struct ll_crypto_hash *tfm;
346 #ifndef HAVE_STRUCT_BLKCIPHER_DESC
347 struct blkcipher_desc {
348 struct ll_crypto_cipher *tfm;
353 #define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
354 crypto_cipher_setkey(tfm, key, keylen)
355 #define ll_crypto_blkcipher_set_iv(tfm, src, len) \
356 crypto_cipher_set_iv(tfm, src, len)
357 #define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
358 crypto_cipher_get_iv(tfm, dst, len)
359 #define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
360 crypto_cipher_encrypt((desc)->tfm, dst, src, bytes)
361 #define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
362 crypto_cipher_decrypt((desc)->tfm, dst, src, bytes)
363 #define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
364 crypto_cipher_decrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
365 #define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
366 crypto_cipher_encrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
369 struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char * algname,
372 struct ll_crypto_cipher *rtn;
373 char buf[CRYPTO_MAX_ALG_NAME + 1];
374 const char *pan = algname;
377 if (strncmp("cbc(", algname, 4) == 0)
378 flag |= CRYPTO_TFM_MODE_CBC;
379 else if (strncmp("ecb(", algname, 4) == 0)
380 flag |= CRYPTO_TFM_MODE_ECB;
382 char *vp = strnchr(algname, CRYPTO_MAX_ALG_NAME, ')');
384 memcpy(buf, algname + 4, vp - algname - 4);
385 buf[vp - algname - 4] = '\0';
391 rtn = crypto_alloc_tfm(pan, flag);
392 return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
396 struct ll_crypto_hash *ll_crypto_alloc_hash(const char *alg, u32 type, u32 mask)
398 char buf[CRYPTO_MAX_ALG_NAME + 1];
399 const char *pan = alg;
401 if (strncmp("hmac(", alg, 5) == 0) {
402 char *vp = strnchr(alg, CRYPTO_MAX_ALG_NAME, ')');
404 memcpy(buf, alg+ 5, vp - alg- 5);
405 buf[vp - alg - 5] = 0x00;
409 return crypto_alloc_tfm(pan, 0);
411 static inline int ll_crypto_hash_init(struct hash_desc *desc)
413 crypto_digest_init(desc->tfm); return 0;
415 static inline int ll_crypto_hash_update(struct hash_desc *desc,
416 struct scatterlist *sg,
419 struct scatterlist *sl = sg;
422 * This way is very weakness. We must ensure that
423 * the sum of sg[0..i]->length isn't greater than nbytes.
424 * In the upstream kernel the crypto_hash_update() also
425 * via the nbytes computed the count of sg[...].
426 * The old style is more safely. but it gone.
428 for (count = 0; nbytes > 0; count ++, sl ++) {
429 nbytes -= sl->length;
431 crypto_digest_update(desc->tfm, sg, count); return 0;
433 static inline int ll_crypto_hash_final(struct hash_desc *desc, u8 *out)
435 crypto_digest_final(desc->tfm, out); return 0;
437 static inline int ll_crypto_hmac(struct crypto_tfm *tfm,
438 u8 *key, unsigned int *keylen,
439 struct scatterlist *sg,
443 struct scatterlist *sl = sg;
445 for (count = 0; nbytes > 0; count ++, sl ++) {
446 nbytes -= sl->length;
448 crypto_hmac(tfm, key, keylen, sg, count, out);
452 #define ll_crypto_hash_setkey(tfm, key, keylen) crypto_digest_setkey(tfm, key, keylen)
453 #define ll_crypto_blkcipher_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
454 #define ll_crypto_blkcipher_ivsize(tfm) crypto_tfm_alg_ivsize(tfm)
455 #define ll_crypto_hash_digestsize(tfm) crypto_tfm_alg_digestsize(tfm)
456 #define ll_crypto_hash_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
457 #define ll_crypto_free_hash(tfm) crypto_free_tfm(tfm)
458 #define ll_crypto_free_blkcipher(tfm) crypto_free_tfm(tfm)
459 #define ll_crypto_tfm_alg_min_keysize crypto_tfm_alg_min_keysize
460 #define ll_crypto_tfm_alg_max_keysize crypto_tfm_alg_max_keysize
461 #endif /* HAVE_ASYNC_BLOCK_CIPHER */
463 #ifdef HAVE_SECURITY_PLUG
464 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry,mnt)
465 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mnt,mode)
466 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,mnt,dir,new,mnt1)
467 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry,mnt)
468 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) \
469 vfs_mknod(dir,entry,mnt,mode,dev)
470 #define ll_security_inode_unlink(dir,entry,mnt) \
471 security_inode_unlink(dir,entry,mnt)
472 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
473 vfs_rename(old,old_dir,mnt,new,new_dir,mnt1)
475 #define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
476 #define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
477 #define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
478 #define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
479 #define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
480 #define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
481 #define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
482 vfs_rename(old,old_dir,new,new_dir)
483 #endif /* HAVE_SECURITY_PLUG */
485 #ifdef for_each_possible_cpu
486 #define cfs_for_each_possible_cpu(cpu) for_each_possible_cpu(cpu)
487 #elif defined(for_each_cpu)
488 #define cfs_for_each_possible_cpu(cpu) for_each_cpu(cpu)
491 #ifdef HAVE_BIO_ENDIO_2ARG
492 #define cfs_bio_io_error(a,b) bio_io_error((a))
493 #define cfs_bio_endio(a,b,c) bio_endio((a),(c))
495 #define cfs_bio_io_error(a,b) bio_io_error((a),(b))
496 #define cfs_bio_endio(a,b,c) bio_endio((a),(b),(c))
499 #ifdef HAVE_FS_STRUCT_USE_PATH
500 #define cfs_fs_pwd(fs) ((fs)->pwd.dentry)
501 #define cfs_fs_mnt(fs) ((fs)->pwd.mnt)
502 #define cfs_path_put(nd) path_put(&(nd)->path)
504 #define cfs_fs_pwd(fs) ((fs)->pwd)
505 #define cfs_fs_mnt(fs) ((fs)->pwdmnt)
506 #define cfs_path_put(nd) path_release(nd)
509 #ifndef HAVE_SIMPLE_SETATTR
510 #define simple_setattr(dentry, ops) inode_setattr((dentry)->d_inode, ops)
513 #ifndef SLAB_DESTROY_BY_RCU
514 #define SLAB_DESTROY_BY_RCU 0
517 #ifndef HAVE_SB_HAS_QUOTA_ACTIVE
518 #define sb_has_quota_active(sb, type) sb_has_quota_enabled(sb, type)
521 #ifndef HAVE_SB_ANY_QUOTA_LOADED
522 # ifdef HAVE_SB_ANY_QUOTA_ACTIVE
523 # define sb_any_quota_loaded(sb) sb_any_quota_active(sb)
525 # define sb_any_quota_loaded(sb) sb_any_quota_enabled(sb)
530 ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
534 if (sb->s_qcop->quota_on) {
535 #ifdef HAVE_QUOTA_ON_USE_PATH
538 rc = kern_path(name, LOOKUP_FOLLOW, &path);
542 rc = sb->s_qcop->quota_on(sb, off, ver
543 #ifdef HAVE_QUOTA_ON_USE_PATH
548 #ifdef HAVE_QUOTA_ON_5ARGS
552 #ifdef HAVE_QUOTA_ON_USE_PATH
561 static inline int ll_quota_off(struct super_block *sb, int off, int remount)
563 if (sb->s_qcop->quota_off) {
564 return sb->s_qcop->quota_off(sb, off
565 #ifdef HAVE_QUOTA_OFF_3ARGS
574 #ifndef HAVE_BLK_QUEUE_LOG_BLK_SIZE /* added in 2.6.31 */
575 #define blk_queue_logical_block_size(q, sz) blk_queue_hardsect_size(q, sz)
578 #ifndef HAVE_VFS_DQ_OFF
579 # define ll_vfs_dq_init DQUOT_INIT
580 # define ll_vfs_dq_drop DQUOT_DROP
581 # define ll_vfs_dq_transfer DQUOT_TRANSFER
582 # define ll_vfs_dq_off(sb, remount) DQUOT_OFF(sb)
584 # define ll_vfs_dq_init vfs_dq_init
585 # define ll_vfs_dq_drop vfs_dq_drop
586 # define ll_vfs_dq_transfer vfs_dq_transfer
587 # define ll_vfs_dq_off(sb, remount) vfs_dq_off(sb, remount)
591 #define ll_bdi_init(bdi) bdi_init(bdi)
592 #define ll_bdi_destroy(bdi) bdi_destroy(bdi)
594 #define ll_bdi_init(bdi) 0
595 #define ll_bdi_destroy(bdi) do { } while(0)
598 #ifdef HAVE_NEW_BACKING_DEV_INFO
599 # define ll_bdi_wb_cnt(bdi) ((bdi).wb_cnt)
601 # define ll_bdi_wb_cnt(bdi) 1
604 #ifdef HAVE_BLK_QUEUE_MAX_SECTORS /* removed in rhel6 */
605 #define blk_queue_max_hw_sectors(q, sect) blk_queue_max_sectors(q, sect)
608 #ifndef HAVE_BLKDEV_GET_BY_DEV
609 # define blkdev_get_by_dev(dev, mode, holder) open_by_devnum(dev, mode)
612 #ifndef HAVE_REQUEST_QUEUE_LIMITS
613 #define queue_max_sectors(rq) ((rq)->max_sectors)
614 #define queue_max_hw_sectors(rq) ((rq)->max_hw_sectors)
615 #define queue_max_phys_segments(rq) ((rq)->max_phys_segments)
616 #define queue_max_hw_segments(rq) ((rq)->max_hw_segments)
619 #ifndef HAVE_BLK_QUEUE_MAX_SEGMENTS
620 #define blk_queue_max_segments(rq, seg) \
621 do { blk_queue_max_phys_segments(rq, seg); \
622 blk_queue_max_hw_segments(rq, seg); } while (0)
624 #define queue_max_phys_segments(rq) queue_max_segments(rq)
625 #define queue_max_hw_segments(rq) queue_max_segments(rq)
628 #ifdef HAVE_KMAP_ATOMIC_HAS_1ARG
629 #define ll_kmap_atomic(a, b) kmap_atomic(a)
630 #define ll_kunmap_atomic(a, b) kunmap_atomic(a)
632 #define ll_kmap_atomic(a, b) kmap_atomic(a, b)
633 #define ll_kunmap_atomic(a, b) kunmap_atomic(a, b)
637 #ifndef HAVE_BI_HW_SEGMENTS
638 #define bio_hw_segments(q, bio) 0
641 #ifndef HAVE_PAGEVEC_LRU_ADD_FILE
642 #define pagevec_lru_add_file pagevec_lru_add
645 #ifdef HAVE_ADD_TO_PAGE_CACHE_LRU
646 #define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
647 add_to_page_cache_lru(pg, mapping, off, gfp)
648 #define ll_pagevec_init(pv, cold) do {} while (0)
649 #define ll_pagevec_add(pv, pg) (0)
650 #define ll_pagevec_lru_add_file(pv) do {} while (0)
652 #define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
653 add_to_page_cache(pg, mapping, off, gfp)
654 #define ll_pagevec_init(pv, cold) pagevec_init(&lru_pvec, cold);
655 #define ll_pagevec_add(pv, pg) \
659 page_cache_get(pg); \
660 __ret = pagevec_add(pv, pg); \
662 #define ll_pagevec_lru_add_file(pv) pagevec_lru_add_file(pv)
665 #if !defined(HAVE_NODE_TO_CPUMASK) && defined(HAVE_CPUMASK_OF_NODE)
666 #define node_to_cpumask(i) (*(cpumask_of_node(i)))
667 #define HAVE_NODE_TO_CPUMASK
674 # define NO_QUOTA (-EDQUOT)
677 #if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
678 # define ext2_set_bit __test_and_set_bit_le
679 # define ext2_clear_bit __test_and_clear_bit_le
680 # define ext2_test_bit test_bit_le
681 # define ext2_find_first_zero_bit find_first_zero_bit_le
682 # define ext2_find_next_zero_bit find_next_zero_bit_le
685 #ifdef ATTR_TIMES_SET
686 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
688 # define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
691 #ifndef HAVE_SELINUX_IS_ENABLED
692 static inline bool selinux_is_enabled(void)
698 #ifndef HAVE_LM_XXX_LOCK_MANAGER_OPS
699 # define lm_compare_owner fl_compare_owner
703 * After 3.1, kernel's nameidata.intent.open.flags is different
704 * with lustre's lookup_intent.it_flags, as lustre's it_flags'
705 * lower bits equal to FMODE_xxx while kernel doesn't transliterate
706 * lower bits of nameidata.intent.open.flags to FMODE_xxx.
708 #include <linux/version.h>
709 static inline int ll_namei_to_lookup_intent_flag(int flag)
711 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0)
712 flag = (flag & ~O_ACCMODE) | OPEN_FMODE(flag);
717 #ifdef HAVE_VOID_MAKE_REQUEST_FN
718 # define ll_mrf_ret void
719 # define LL_MRF_RETURN(rc)
721 # define ll_mrf_ret int
722 # define LL_MRF_RETURN(rc) RETURN(rc)
725 #include <linux/fs.h>
726 #ifndef HAVE_PROTECT_I_NLINK
727 static inline void set_nlink(struct inode *inode, unsigned int nlink)
729 inode->i_nlink = nlink;
733 #ifdef HAVE_INODEOPS_USE_UMODE_T
734 # define ll_umode_t umode_t
736 # define ll_umode_t int
739 #include <linux/dcache.h>
740 #ifndef HAVE_D_MAKE_ROOT
741 static inline struct dentry *d_make_root(struct inode *root)
743 struct dentry *res = d_alloc_root(root);
745 if (res == NULL && root)
752 #endif /* _COMPAT25_H */