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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
33 #ifndef LLITE_INTERNAL_H
34 #define LLITE_INTERNAL_H
35 #include "../include/lustre_debug.h"
36 #include "../include/lustre_ver.h"
37 #include "../include/lustre_disk.h" /* for s2sbi */
38 #include "../include/lustre_eacl.h"
40 /* for struct cl_lock_descr and struct cl_io */
41 #include "../include/cl_object.h"
42 #include "../include/lustre_lmv.h"
43 #include "../include/lustre_mdc.h"
44 #include "../include/lustre_intent.h"
45 #include <linux/compat.h>
46 #include <linux/xattr.h>
47 #include <linux/posix_acl_xattr.h>
48 #include "vvp_internal.h"
49 #include "range_lock.h"
55 #ifndef VM_FAULT_RETRY
56 #define VM_FAULT_RETRY 0
59 /** Only used on client-side for indicating the tail of dir hash/offset. */
60 #define LL_DIR_END_OFF 0x7fffffffffffffffULL
61 #define LL_DIR_END_OFF_32BIT 0x7fffffffUL
63 /* 4UL * 1024 * 1024 */
64 #define LL_MAX_BLKSIZE_BITS 22
66 #define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0")
67 #define LUSTRE_FPRIVATE(file) ((file)->private_data)
69 struct ll_dentry_data {
70 struct lookup_intent *lld_it;
71 unsigned int lld_sa_generation;
72 unsigned int lld_invalid:1;
73 unsigned int lld_nfs_dentry:1;
74 struct rcu_head lld_rcu_head;
77 #define ll_d2d(de) ((struct ll_dentry_data *)((de)->d_fsdata))
79 #define LLI_INODE_MAGIC 0x111d0de5
80 #define LLI_INODE_DEAD 0xdeadd00d
82 struct ll_getname_data {
83 struct dir_context ctx;
84 char *lgd_name; /* points to a buffer with NAME_MAX+1 size */
85 struct lu_fid lgd_fid; /* target fid we are looking for */
86 int lgd_found; /* inode matched? */
90 struct lu_env *lg_env;
92 struct cl_lock *lg_lock;
97 /* MDS has an authority for the Size-on-MDS attributes. */
98 LLIF_MDS_SIZE_LOCK = (1 << 0),
99 /* Epoch close is postponed. */
100 LLIF_EPOCH_PENDING = (1 << 1),
101 /* DONE WRITING is allowed. */
102 LLIF_DONE_WRITING = (1 << 2),
103 /* Sizeon-on-MDS attributes are changed. An attribute update needs to
106 LLIF_SOM_DIRTY = (1 << 3),
107 /* File data is modified. */
108 LLIF_DATA_MODIFIED = (1 << 4),
109 /* File is being restored */
110 LLIF_FILE_RESTORING = (1 << 5),
111 /* Xattr cache is attached to the file */
112 LLIF_XATTR_CACHE = (1 << 6),
115 struct ll_inode_info {
116 __u32 lli_inode_magic;
121 struct posix_acl *lli_posix_acl;
123 /* identifying fields for both metadata and data stacks. */
124 struct lu_fid lli_fid;
125 /* master inode fid for stripe directory */
126 struct lu_fid lli_pfid;
128 struct list_head lli_close_list;
130 /* handle is to be sent to MDS later on done_writing and setattr.
131 * Open handle data are needed for the recovery to reconstruct
132 * the inode state on the MDS. XXX: recovery is not ready yet.
134 struct obd_client_handle *lli_pending_och;
136 /* We need all three because every inode may be opened in different
139 struct obd_client_handle *lli_mds_read_och;
140 struct obd_client_handle *lli_mds_write_och;
141 struct obd_client_handle *lli_mds_exec_och;
142 __u64 lli_open_fd_read_count;
143 __u64 lli_open_fd_write_count;
144 __u64 lli_open_fd_exec_count;
145 /* Protects access to och pointers and their usage counters */
146 struct mutex lli_och_mutex;
148 struct inode lli_vfs_inode;
150 /* the most recent timestamps obtained from mds */
154 spinlock_t lli_agl_lock;
156 /* Try to make the d::member and f::member are aligned. Before using
157 * these members, make clear whether it is directory or not.
162 /* serialize normal readdir and statahead-readdir. */
163 struct mutex d_readdir_mutex;
165 /* metadata statahead */
166 /* since parent-child threads can share the same @file
167 * struct, "opendir_key" is the token when dir close for
168 * case of parent exit before child -- it is me should
169 * cleanup the dir readahead.
172 struct ll_statahead_info *d_sai;
173 /* protect statahead stuff. */
174 spinlock_t d_sa_lock;
175 /* "opendir_pid" is the token when lookup/revalidate
176 * -- I am the owner of dir statahead.
179 /* stat will try to access statahead entries or start
180 * statahead if this flag is set, and this flag will be
181 * set upon dir open, and cleared when dir is closed,
182 * statahead hit ratio is too low, or start statahead
185 unsigned int d_sa_enabled:1;
186 /* directory stripe information */
187 struct lmv_stripe_md *d_lsm_md;
188 /* striped directory size */
189 loff_t d_stripe_size;
190 /* striped directory nlink */
191 __u64 d_stripe_nlink;
194 #define lli_readdir_mutex u.d.d_readdir_mutex
195 #define lli_opendir_key u.d.d_opendir_key
196 #define lli_sai u.d.d_sai
197 #define lli_sa_lock u.d.d_sa_lock
198 #define lli_sa_enabled u.d.d_sa_enabled
199 #define lli_opendir_pid u.d.d_opendir_pid
200 #define lli_lsm_md u.d.d_lsm_md
201 #define lli_stripe_dir_size u.d.d_stripe_size
202 #define lli_stripe_dir_nlink u.d.d_stripe_nlink
204 /* for non-directory */
206 struct mutex f_size_mutex;
207 char *f_symlink_name;
210 * struct rw_semaphore {
211 * signed long count; // align d.d_def_acl
212 * spinlock_t wait_lock; // align d.d_sa_lock
213 * struct list_head wait_list;
216 struct rw_semaphore f_trunc_sem;
217 struct range_lock_tree f_write_tree;
219 struct rw_semaphore f_glimpse_sem;
220 unsigned long f_glimpse_time;
221 struct list_head f_agl_list;
224 /* for writepage() only to communicate to fsync */
228 * whenever a process try to read/write the file, the
229 * jobid of the process will be saved here, and it'll
230 * be packed into the write PRC when flush later.
232 * so the read/write statistics for jobid will not be
233 * accurate if the file is shared by different jobs.
235 char f_jobid[JOBSTATS_JOBID_SIZE];
238 #define lli_size_mutex u.f.f_size_mutex
239 #define lli_symlink_name u.f.f_symlink_name
240 #define lli_maxbytes u.f.f_maxbytes
241 #define lli_trunc_sem u.f.f_trunc_sem
242 #define lli_write_tree u.f.f_write_tree
243 #define lli_glimpse_sem u.f.f_glimpse_sem
244 #define lli_glimpse_time u.f.f_glimpse_time
245 #define lli_agl_list u.f.f_agl_list
246 #define lli_agl_index u.f.f_agl_index
247 #define lli_async_rc u.f.f_async_rc
248 #define lli_jobid u.f.f_jobid
252 /* XXX: For following frequent used members, although they maybe special
253 * used for non-directory object, it is some time-wasting to check
254 * whether the object is directory or not before using them. On the
255 * other hand, currently, sizeof(f) > sizeof(d), it cannot reduce
256 * the "ll_inode_info" size even if moving those members into u.f.
257 * So keep them out side.
259 * In the future, if more members are added only for directory,
260 * some of the following members can be moved into u.f.
263 struct cl_object *lli_clob;
265 /* mutex to request for layout lock exclusively. */
266 struct mutex lli_layout_mutex;
267 /* Layout version, protected by lli_layout_lock */
268 __u32 lli_layout_gen;
269 spinlock_t lli_layout_lock;
271 struct rw_semaphore lli_xattrs_list_rwsem;
272 struct mutex lli_xattrs_enq_lock;
273 struct list_head lli_xattrs;/* ll_xattr_entry->xe_list */
276 static inline __u32 ll_layout_version_get(struct ll_inode_info *lli)
280 spin_lock(&lli->lli_layout_lock);
281 gen = lli->lli_layout_gen;
282 spin_unlock(&lli->lli_layout_lock);
287 static inline void ll_layout_version_set(struct ll_inode_info *lli, __u32 gen)
289 spin_lock(&lli->lli_layout_lock);
290 lli->lli_layout_gen = gen;
291 spin_unlock(&lli->lli_layout_lock);
294 int ll_xattr_cache_destroy(struct inode *inode);
296 int ll_xattr_cache_get(struct inode *inode, const char *name,
297 char *buffer, size_t size, __u64 valid);
300 * Locking to guarantee consistency of non-atomic updates to long long i_size,
301 * consistency between file size and KMS.
303 * Implemented by ->lli_size_mutex and ->lsm_lock, nested in that order.
306 void ll_inode_size_lock(struct inode *inode);
307 void ll_inode_size_unlock(struct inode *inode);
309 /* FIXME: replace the name of this with LL_I to conform to kernel stuff */
310 /* static inline struct ll_inode_info *LL_I(struct inode *inode) */
311 static inline struct ll_inode_info *ll_i2info(struct inode *inode)
313 return container_of(inode, struct ll_inode_info, lli_vfs_inode);
316 /* default to about 40meg of readahead on a given system. That much tied
317 * up in 512k readahead requests serviced at 40ms each is about 1GB/s.
319 #define SBI_DEFAULT_READAHEAD_MAX (40UL << (20 - PAGE_SHIFT))
321 /* default to read-ahead full files smaller than 2MB on the second read */
322 #define SBI_DEFAULT_READAHEAD_WHOLE_MAX (2UL << (20 - PAGE_SHIFT))
327 RA_STAT_DISTANT_READPAGE,
328 RA_STAT_MISS_IN_WINDOW,
329 RA_STAT_FAILED_GRAB_PAGE,
330 RA_STAT_FAILED_MATCH,
335 RA_STAT_MAX_IN_FLIGHT,
336 RA_STAT_WRONG_GRAB_PAGE,
337 RA_STAT_FAILED_REACH_END,
342 atomic_t ra_cur_pages;
343 unsigned long ra_max_pages;
344 unsigned long ra_max_pages_per_file;
345 unsigned long ra_max_read_ahead_whole_pages;
348 /* ra_io_arg will be filled in the beginning of ll_readahead with
349 * ras_lock, then the following ll_read_ahead_pages will read RA
350 * pages according to this arg, all the items in this structure are
351 * counted by page index.
354 unsigned long ria_start; /* start offset of read-ahead*/
355 unsigned long ria_end; /* end offset of read-ahead*/
356 /* If stride read pattern is detected, ria_stoff means where
357 * stride read is started. Note: for normal read-ahead, the
358 * value here is meaningless, and also it will not be accessed
361 /* ria_length and ria_pages are the length and pages length in the
362 * stride I/O mode. And they will also be used to check whether
363 * it is stride I/O read-ahead in the read-ahead pages
365 unsigned long ria_length;
366 unsigned long ria_pages;
369 /* LL_HIST_MAX=32 causes an overflow */
370 #define LL_HIST_MAX 28
371 #define LL_HIST_START 12 /* buckets start at 2^12 = 4k */
372 #define LL_PROCESS_HIST_MAX 10
373 struct per_process_info {
375 struct obd_histogram pp_r_hist;
376 struct obd_histogram pp_w_hist;
379 /* pp_extents[LL_PROCESS_HIST_MAX] will hold the combined process info */
380 struct ll_rw_extents_info {
381 struct per_process_info pp_extents[LL_PROCESS_HIST_MAX + 1];
384 #define LL_OFFSET_HIST_MAX 100
385 struct ll_rw_process_info {
388 loff_t rw_range_start;
390 loff_t rw_last_file_pos;
392 size_t rw_smallest_extent;
393 size_t rw_largest_extent;
394 struct ll_file_data *rw_last_file;
397 enum stats_track_type {
398 STATS_TRACK_ALL = 0, /* track all processes */
399 STATS_TRACK_PID, /* track process with this pid */
400 STATS_TRACK_PPID, /* track processes with this ppid */
401 STATS_TRACK_GID, /* track processes with this gid */
405 /* flags for sbi->ll_flags */
406 #define LL_SBI_NOLCK 0x01 /* DLM locking disabled (directio-only) */
407 #define LL_SBI_CHECKSUM 0x02 /* checksum each page as it's written */
408 #define LL_SBI_FLOCK 0x04
409 #define LL_SBI_USER_XATTR 0x08 /* support user xattr */
410 #define LL_SBI_ACL 0x10 /* support ACL */
411 /* LL_SBI_RMT_CLIENT 0x40 remote client */
412 #define LL_SBI_MDS_CAPA 0x80 /* support mds capa, obsolete */
413 #define LL_SBI_OSS_CAPA 0x100 /* support oss capa, obsolete */
414 #define LL_SBI_LOCALFLOCK 0x200 /* Local flocks support by kernel */
415 #define LL_SBI_LRU_RESIZE 0x400 /* lru resize support */
416 #define LL_SBI_LAZYSTATFS 0x800 /* lazystatfs mount option */
417 #define LL_SBI_SOM_PREVIEW 0x1000 /* SOM preview mount option */
418 #define LL_SBI_32BIT_API 0x2000 /* generate 32 bit inodes. */
419 #define LL_SBI_64BIT_HASH 0x4000 /* support 64-bits dir hash/offset */
420 #define LL_SBI_AGL_ENABLED 0x8000 /* enable agl */
421 #define LL_SBI_VERBOSE 0x10000 /* verbose mount/umount */
422 #define LL_SBI_LAYOUT_LOCK 0x20000 /* layout lock support */
423 #define LL_SBI_USER_FID2PATH 0x40000 /* allow fid2path by unprivileged users */
424 #define LL_SBI_XATTR_CACHE 0x80000 /* support for xattr cache */
425 #define LL_SBI_NOROOTSQUASH 0x100000 /* do not apply root squash */
427 #define LL_SBI_FLAGS { \
452 * This is embedded into llite super-blocks to keep track of connect
453 * flags (capabilities) supported by all imports given mount is
456 struct lustre_client_ocd {
458 * This is conjunction of connect_flags across all imports
459 * (LOVs) this mount is connected to. This field is updated by
460 * cl_ocd_update() under ->lco_lock.
463 struct mutex lco_lock;
464 struct obd_export *lco_md_exp;
465 struct obd_export *lco_dt_exp;
469 /* this protects pglist and ra_info. It isn't safe to
470 * grab from interrupt contexts
473 spinlock_t ll_pp_extent_lock; /* pp_extent entry*/
474 spinlock_t ll_process_lock; /* ll_rw_process_info */
475 struct obd_uuid ll_sb_uuid;
476 struct obd_export *ll_md_exp;
477 struct obd_export *ll_dt_exp;
478 struct dentry *ll_debugfs_entry;
479 struct lu_fid ll_root_fid; /* root object fid */
482 unsigned int ll_umounting:1,
483 ll_xattr_cache_enabled:1;
484 struct lustre_client_ocd ll_lco;
486 struct ll_close_queue *ll_lcq;
488 struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
491 * Used to track "unstable" pages on a client, and maintain a
492 * LRU list of clean pages. An "unstable" page is defined as
493 * any page which is sent to a server as part of a bulk request,
494 * but is uncommitted to stable storage.
496 struct cl_client_cache *ll_cache;
498 struct lprocfs_stats *ll_ra_stats;
500 struct ll_ra_info ll_ra_info;
501 unsigned int ll_namelen;
502 struct file_operations *ll_fop;
504 unsigned int ll_md_brw_pages; /* readdir pages per RPC */
506 struct lu_site *ll_site;
507 struct cl_device *ll_cl;
509 struct ll_rw_extents_info ll_rw_extents_info;
510 int ll_extent_process_count;
511 struct ll_rw_process_info ll_rw_process_info[LL_PROCESS_HIST_MAX];
512 unsigned int ll_offset_process_count;
513 struct ll_rw_process_info ll_rw_offset_info[LL_OFFSET_HIST_MAX];
514 unsigned int ll_rw_offset_entry_count;
515 int ll_stats_track_id;
516 enum stats_track_type ll_stats_track_type;
519 /* metadata stat-ahead */
520 unsigned int ll_sa_max; /* max statahead RPCs */
521 atomic_t ll_sa_total; /* statahead thread started
524 atomic_t ll_sa_wrong; /* statahead thread stopped for
527 atomic_t ll_sa_running; /* running statahead thread
530 atomic_t ll_agl_total; /* AGL thread started count */
532 dev_t ll_sdev_orig; /* save s_dev before assign for
536 struct root_squash_info ll_squash;
538 __kernel_fsid_t ll_fsid;
539 struct kobject ll_kobj; /* sysfs object */
540 struct super_block *ll_sb; /* struct super_block (for sysfs code)*/
541 struct completion ll_kobj_unregister;
545 * per file-descriptor read-ahead data.
547 struct ll_readahead_state {
550 * index of the last page that read(2) needed and that wasn't in the
551 * cache. Used by ras_update() to detect seeks.
553 * XXX nikita: if access seeks into cached region, Lustre doesn't see
556 unsigned long ras_last_readpage;
558 * number of pages read after last read-ahead window reset. As window
559 * is reset on each seek, this is effectively a number of consecutive
560 * accesses. Maybe ->ras_accessed_in_window is better name.
562 * XXX nikita: window is also reset (by ras_update()) when Lustre
563 * believes that memory pressure evicts read-ahead pages. In that
564 * case, it probably doesn't make sense to expand window to
565 * PTLRPC_MAX_BRW_PAGES on the third access.
567 unsigned long ras_consecutive_pages;
569 * number of read requests after the last read-ahead window reset
570 * As window is reset on each seek, this is effectively the number
571 * on consecutive read request and is used to trigger read-ahead.
573 unsigned long ras_consecutive_requests;
575 * Parameters of current read-ahead window. Handled by
576 * ras_update(). On the initial access to the file or after a seek,
577 * window is reset to 0. After 3 consecutive accesses, window is
578 * expanded to PTLRPC_MAX_BRW_PAGES. Afterwards, window is enlarged by
579 * PTLRPC_MAX_BRW_PAGES chunks up to ->ra_max_pages.
581 unsigned long ras_window_start, ras_window_len;
583 * Where next read-ahead should start at. This lies within read-ahead
584 * window. Read-ahead window is read in pieces rather than at once
585 * because: 1. lustre limits total number of pages under read-ahead by
586 * ->ra_max_pages (see ll_ra_count_get()), 2. client cannot read pages
587 * not covered by DLM lock.
589 unsigned long ras_next_readahead;
591 * Total number of ll_file_read requests issued, reads originating
592 * due to mmap are not counted in this total. This value is used to
593 * trigger full file read-ahead after multiple reads to a small file.
595 unsigned long ras_requests;
597 * Page index with respect to the current request, these value
598 * will not be accurate when dealing with reads issued via mmap.
600 unsigned long ras_request_index;
602 * The following 3 items are used for detecting the stride I/O
604 * In stride I/O mode,
605 * ...............|-----data-----|****gap*****|--------|******|....
606 * offset |-stride_pages-|-stride_gap-|
607 * ras_stride_offset = offset;
608 * ras_stride_length = stride_pages + stride_gap;
609 * ras_stride_pages = stride_pages;
610 * Note: all these three items are counted by pages.
612 unsigned long ras_stride_length;
613 unsigned long ras_stride_pages;
614 pgoff_t ras_stride_offset;
616 * number of consecutive stride request count, and it is similar as
617 * ras_consecutive_requests, but used for stride I/O mode.
618 * Note: only more than 2 consecutive stride request are detected,
619 * stride read-ahead will be enable
621 unsigned long ras_consecutive_stride_requests;
624 extern struct kmem_cache *ll_file_data_slab;
625 struct lustre_handle;
626 struct ll_file_data {
627 struct ll_readahead_state fd_ras;
628 struct ll_grouplock fd_grouplock;
632 /* openhandle if lease exists for this file.
633 * Borrow lli->lli_och_mutex to protect assignment
635 struct obd_client_handle *fd_lease_och;
636 struct obd_client_handle *fd_och;
637 struct file *fd_file;
638 /* Indicate whether need to report failure when close.
639 * true: failure is known, not report again.
640 * false: unknown failure, should report.
642 bool fd_write_failed;
643 rwlock_t fd_lock; /* protect lcc list */
644 struct list_head fd_lccs; /* list of ll_cl_context */
647 struct lov_stripe_md;
649 extern struct dentry *llite_root;
650 extern struct kset *llite_kset;
652 static inline struct inode *ll_info2i(struct ll_inode_info *lli)
654 return &lli->lli_vfs_inode;
657 __u32 ll_i2suppgid(struct inode *i);
658 void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2);
660 static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
662 #if BITS_PER_LONG == 32
664 #elif defined(CONFIG_COMPAT)
665 return unlikely(in_compat_syscall() || (sbi->ll_flags & LL_SBI_32BIT_API));
667 return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
671 void ll_ras_enter(struct file *f);
673 /* llite/lcommon_misc.c */
674 int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp);
675 int cl_ocd_update(struct obd_device *host,
676 struct obd_device *watched,
677 enum obd_notify_event ev, void *owner, void *data);
678 int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock,
679 struct ll_grouplock *cg);
680 void cl_put_grouplock(struct ll_grouplock *cg);
682 /* llite/lproc_llite.c */
683 int ldebugfs_register_mountpoint(struct dentry *parent,
684 struct super_block *sb, char *osc, char *mdc);
685 void ldebugfs_unregister_mountpoint(struct ll_sb_info *sbi);
686 void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count);
687 void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars);
688 void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
689 struct ll_file_data *file, loff_t pos,
690 size_t count, int rw);
694 LPROC_LL_DIRTY_MISSES,
696 LPROC_LL_WRITE_BYTES,
721 LPROC_LL_ALLOC_INODE,
724 LPROC_LL_GETXATTR_HITS,
726 LPROC_LL_REMOVEXATTR,
728 LPROC_LL_FILE_OPCODES
732 extern const struct file_operations ll_dir_operations;
733 extern const struct inode_operations ll_dir_inode_operations;
734 int ll_dir_read(struct inode *inode, __u64 *ppos, struct md_op_data *op_data,
735 struct dir_context *ctx);
736 int ll_get_mdt_idx(struct inode *inode);
737 int ll_get_mdt_idx_by_fid(struct ll_sb_info *sbi, const struct lu_fid *fid);
738 struct page *ll_get_dir_page(struct inode *dir, struct md_op_data *op_data,
740 void ll_release_page(struct inode *inode, struct page *page, bool remove);
743 extern const struct inode_operations ll_special_inode_operations;
745 int ll_objects_destroy(struct ptlrpc_request *request,
747 struct inode *ll_iget(struct super_block *sb, ino_t hash,
748 struct lustre_md *lic);
749 int ll_test_inode_by_fid(struct inode *inode, void *opaque);
750 int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
751 void *data, int flag);
752 struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de);
753 void ll_update_times(struct ptlrpc_request *request, struct inode *inode);
756 int ll_writepage(struct page *page, struct writeback_control *wbc);
757 int ll_writepages(struct address_space *, struct writeback_control *wbc);
758 int ll_readpage(struct file *file, struct page *page);
759 void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
760 int ll_readahead(const struct lu_env *env, struct cl_io *io,
761 struct cl_page_list *queue, struct ll_readahead_state *ras,
763 struct ll_cl_context *ll_cl_find(struct file *file);
764 void ll_cl_add(struct file *file, const struct lu_env *env, struct cl_io *io);
765 void ll_cl_remove(struct file *file, const struct lu_env *env);
767 extern const struct address_space_operations ll_aops;
770 extern struct file_operations ll_file_operations;
771 extern struct file_operations ll_file_operations_flock;
772 extern struct file_operations ll_file_operations_noflock;
773 extern const struct inode_operations ll_file_inode_operations;
774 int ll_have_md_lock(struct inode *inode, __u64 *bits,
775 enum ldlm_mode l_req_mode);
776 enum ldlm_mode ll_take_md_lock(struct inode *inode, __u64 bits,
777 struct lustre_handle *lockh, __u64 flags,
778 enum ldlm_mode mode);
779 int ll_file_open(struct inode *inode, struct file *file);
780 int ll_file_release(struct inode *inode, struct file *file);
781 int ll_glimpse_ioctl(struct ll_sb_info *sbi,
782 struct lov_stripe_md *lsm, lstat_t *st);
783 void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch);
784 int ll_release_openhandle(struct inode *, struct lookup_intent *);
785 int ll_md_real_close(struct inode *inode, fmode_t fmode);
786 void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
787 struct obd_client_handle **och, unsigned long flags);
788 void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data);
789 int ll_som_update(struct inode *inode, struct md_op_data *op_data);
790 int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
791 __u64 ioepoch, int sync);
792 void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
793 struct lustre_handle *fh);
794 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
795 struct posix_acl *ll_get_acl(struct inode *inode, int type);
796 int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
797 const char *name, int namelen);
798 int ll_get_fid_by_name(struct inode *parent, const char *name,
799 int namelen, struct lu_fid *fid);
800 int ll_inode_permission(struct inode *inode, int mask);
802 int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry,
803 __u64 flags, struct lov_user_md *lum,
805 int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
806 struct lov_mds_md **lmm, int *lmm_size,
807 struct ptlrpc_request **request);
808 int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
810 int ll_dir_getstripe(struct inode *inode, void **lmmp, int *lmm_size,
811 struct ptlrpc_request **request, u64 valid);
812 int ll_fsync(struct file *file, loff_t start, loff_t end, int data);
813 int ll_merge_attr(const struct lu_env *env, struct inode *inode);
814 int ll_fid2path(struct inode *inode, void __user *arg);
815 int ll_data_version(struct inode *inode, __u64 *data_version, int flags);
816 int ll_hsm_release(struct inode *inode);
820 int ll_d_init(struct dentry *de);
821 extern const struct dentry_operations ll_d_ops;
822 void ll_intent_drop_lock(struct lookup_intent *);
823 void ll_intent_release(struct lookup_intent *);
824 void ll_invalidate_aliases(struct inode *);
825 void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode);
826 int ll_revalidate_it_finish(struct ptlrpc_request *request,
827 struct lookup_intent *it, struct inode *inode);
829 /* llite/llite_lib.c */
830 extern struct super_operations lustre_super_operations;
832 void ll_lli_init(struct ll_inode_info *lli);
833 int ll_fill_super(struct super_block *sb, struct vfsmount *mnt);
834 void ll_put_super(struct super_block *sb);
835 void ll_kill_super(struct super_block *sb);
836 struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock);
837 void ll_clear_inode(struct inode *inode);
838 int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import);
839 int ll_setattr(struct dentry *de, struct iattr *attr);
840 int ll_statfs(struct dentry *de, struct kstatfs *sfs);
841 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
842 __u64 max_age, __u32 flags);
843 int ll_update_inode(struct inode *inode, struct lustre_md *md);
844 int ll_read_inode2(struct inode *inode, void *opaque);
845 void ll_delete_inode(struct inode *inode);
846 int ll_iocontrol(struct inode *inode, struct file *file,
847 unsigned int cmd, unsigned long arg);
848 int ll_flush_ctx(struct inode *inode);
849 void ll_umount_begin(struct super_block *sb);
850 int ll_remount_fs(struct super_block *sb, int *flags, char *data);
851 int ll_show_options(struct seq_file *seq, struct dentry *dentry);
852 void ll_dirty_page_discard_warn(struct page *page, int ioret);
853 int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
854 struct super_block *, struct lookup_intent *);
855 int ll_obd_statfs(struct inode *inode, void __user *arg);
856 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *max_mdsize);
857 int ll_get_default_mdsize(struct ll_sb_info *sbi, int *default_mdsize);
858 int ll_process_config(struct lustre_cfg *lcfg);
861 LUSTRE_OPC_MKDIR = 0,
862 LUSTRE_OPC_SYMLINK = 1,
863 LUSTRE_OPC_MKNOD = 2,
864 LUSTRE_OPC_CREATE = 3,
868 struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
869 struct inode *i1, struct inode *i2,
870 const char *name, int namelen,
871 int mode, __u32 opc, void *data);
872 void ll_finish_md_op_data(struct md_op_data *op_data);
873 int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg);
874 char *ll_get_fsname(struct super_block *sb, char *buf, int buflen);
875 void ll_compute_rootsquash_state(struct ll_sb_info *sbi);
876 void ll_open_cleanup(struct super_block *sb, struct ptlrpc_request *open_req);
878 /* llite/llite_nfs.c */
879 extern const struct export_operations lustre_export_operations;
880 __u32 get_uuid2int(const char *name, int len);
881 void get_uuid2fsid(const char *name, int len, __kernel_fsid_t *fsid);
882 struct inode *search_inode_for_lustre(struct super_block *sb,
883 const struct lu_fid *fid);
884 int ll_dir_get_parent_fid(struct inode *dir, struct lu_fid *parent_fid);
886 /* llite/symlink.c */
887 extern const struct inode_operations ll_fast_symlink_inode_operations;
889 /* llite/llite_close.c */
890 struct ll_close_queue {
892 struct list_head lcq_head;
893 wait_queue_head_t lcq_waitq;
894 struct completion lcq_comp;
898 void vvp_write_pending(struct vvp_object *club, struct vvp_page *page);
899 void vvp_write_complete(struct vvp_object *club, struct vvp_page *page);
902 * IO arguments for various VFS I/O interfaces.
906 enum vvp_io_subtype via_io_subtype;
910 struct kiocb *via_iocb;
911 struct iov_iter *via_iter;
914 struct pipe_inode_info *via_pipe;
915 unsigned int via_flags;
920 struct ll_cl_context {
921 struct list_head lcc_list;
923 const struct lu_env *lcc_env;
924 struct cl_io *lcc_io;
925 struct cl_page *lcc_page;
928 struct ll_thread_info {
929 struct vvp_io_args lti_args;
930 struct ra_io_arg lti_ria;
931 struct ll_cl_context lti_io_ctx;
934 extern struct lu_context_key ll_thread_key;
935 static inline struct ll_thread_info *ll_env_info(const struct lu_env *env)
937 struct ll_thread_info *lti;
939 lti = lu_context_key_get(&env->le_ctx, &ll_thread_key);
944 static inline struct vvp_io_args *ll_env_args(const struct lu_env *env,
945 enum vvp_io_subtype type)
947 struct vvp_io_args *via = &ll_env_info(env)->lti_args;
949 via->via_io_subtype = type;
954 void ll_queue_done_writing(struct inode *inode, unsigned long flags);
955 void ll_close_thread_shutdown(struct ll_close_queue *lcq);
956 int ll_close_thread_start(struct ll_close_queue **lcq_ret);
958 /* llite/llite_mmap.c */
960 int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last);
961 int ll_file_mmap(struct file *file, struct vm_area_struct *vma);
962 void policy_from_vma(ldlm_policy_data_t *policy, struct vm_area_struct *vma,
963 unsigned long addr, size_t count);
964 struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
967 static inline void ll_invalidate_page(struct page *vmpage)
969 struct address_space *mapping = vmpage->mapping;
970 loff_t offset = vmpage->index << PAGE_SHIFT;
972 LASSERT(PageLocked(vmpage));
977 * truncate_complete_page() calls
978 * a_ops->invalidatepage()->cl_page_delete()->vvp_page_delete().
980 ll_teardown_mmaps(mapping, offset, offset + PAGE_SIZE);
981 truncate_complete_page(mapping, vmpage);
984 #define ll_s2sbi(sb) (s2lsi(sb)->lsi_llsbi)
986 /* don't need an addref as the sb_info should be holding one */
987 static inline struct obd_export *ll_s2dtexp(struct super_block *sb)
989 return ll_s2sbi(sb)->ll_dt_exp;
992 /* don't need an addref as the sb_info should be holding one */
993 static inline struct obd_export *ll_s2mdexp(struct super_block *sb)
995 return ll_s2sbi(sb)->ll_md_exp;
998 static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
1000 struct obd_device *obd = sbi->ll_md_exp->exp_obd;
1007 /* FIXME: replace the name of this with LL_SB to conform to kernel stuff */
1008 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
1010 return ll_s2sbi(inode->i_sb);
1013 static inline struct obd_export *ll_i2dtexp(struct inode *inode)
1015 return ll_s2dtexp(inode->i_sb);
1018 static inline struct obd_export *ll_i2mdexp(struct inode *inode)
1020 return ll_s2mdexp(inode->i_sb);
1023 static inline struct lu_fid *ll_inode2fid(struct inode *inode)
1028 fid = &ll_i2info(inode)->lli_fid;
1033 static inline __u64 ll_file_maxbytes(struct inode *inode)
1035 return ll_i2info(inode)->lli_maxbytes;
1039 extern const struct xattr_handler *ll_xattr_handlers[];
1041 ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size);
1044 * Common IO arguments for various VFS I/O interfaces.
1046 int cl_sb_init(struct super_block *sb);
1047 int cl_sb_fini(struct super_block *sb);
1048 void ll_io_init(struct cl_io *io, const struct file *file, int write);
1050 void ras_update(struct ll_sb_info *sbi, struct inode *inode,
1051 struct ll_readahead_state *ras, unsigned long index,
1053 void ll_ra_count_put(struct ll_sb_info *sbi, unsigned long len);
1054 void ll_ra_stats_inc(struct inode *inode, enum ra_stat which);
1057 #define LL_SA_RPC_MIN 2
1058 #define LL_SA_RPC_DEF 32
1059 #define LL_SA_RPC_MAX 8192
1061 #define LL_SA_CACHE_BIT 5
1062 #define LL_SA_CACHE_SIZE (1 << LL_SA_CACHE_BIT)
1063 #define LL_SA_CACHE_MASK (LL_SA_CACHE_SIZE - 1)
1065 /* per inode struct, for dir only */
1066 struct ll_statahead_info {
1067 struct inode *sai_inode;
1068 atomic_t sai_refcount; /* when access this struct, hold
1071 unsigned int sai_generation; /* generation for statahead */
1072 unsigned int sai_max; /* max ahead of lookup */
1073 __u64 sai_sent; /* stat requests sent count */
1074 __u64 sai_replied; /* stat requests which received
1077 __u64 sai_index; /* index of statahead entry */
1078 __u64 sai_index_wait; /* index of entry which is the
1079 * caller is waiting for
1081 __u64 sai_hit; /* hit count */
1082 __u64 sai_miss; /* miss count:
1083 * for "ls -al" case, it includes
1084 * hidden dentry miss;
1085 * for "ls -l" case, it does not
1086 * include hidden dentry miss.
1087 * "sai_miss_hidden" is used for
1090 unsigned int sai_consecutive_miss; /* consecutive miss */
1091 unsigned int sai_miss_hidden;/* "ls -al", but first dentry
1092 * is not a hidden one
1094 unsigned int sai_skip_hidden;/* skipped hidden dentry count */
1095 unsigned int sai_ls_all:1, /* "ls -al", do stat-ahead for
1098 sai_agl_valid:1,/* AGL is valid for the dir */
1099 sai_in_readpage:1;/* statahead is in readdir() */
1100 wait_queue_head_t sai_waitq; /* stat-ahead wait queue */
1101 struct ptlrpc_thread sai_thread; /* stat-ahead thread */
1102 struct ptlrpc_thread sai_agl_thread; /* AGL thread */
1103 struct list_head sai_entries; /* entry list */
1104 struct list_head sai_entries_received; /* entries returned */
1105 struct list_head sai_entries_stated; /* entries stated */
1106 struct list_head sai_entries_agl; /* AGL entries to be sent */
1107 struct list_head sai_cache[LL_SA_CACHE_SIZE];
1108 spinlock_t sai_cache_lock[LL_SA_CACHE_SIZE];
1109 atomic_t sai_cache_count; /* entry count in cache */
1112 int do_statahead_enter(struct inode *dir, struct dentry **dentry,
1114 void ll_authorize_statahead(struct inode *dir, void *key);
1115 void ll_deauthorize_statahead(struct inode *dir, void *key);
1117 blkcnt_t dirty_cnt(struct inode *inode);
1119 int cl_glimpse_size0(struct inode *inode, int agl);
1120 int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io,
1121 struct inode *inode, struct cl_object *clob, int agl);
1123 static inline int cl_glimpse_size(struct inode *inode)
1125 return cl_glimpse_size0(inode, 0);
1128 static inline int cl_agl(struct inode *inode)
1130 return cl_glimpse_size0(inode, 1);
1133 static inline int ll_glimpse_size(struct inode *inode)
1135 struct ll_inode_info *lli = ll_i2info(inode);
1138 down_read(&lli->lli_glimpse_sem);
1139 rc = cl_glimpse_size(inode);
1140 lli->lli_glimpse_time = cfs_time_current();
1141 up_read(&lli->lli_glimpse_sem);
1146 ll_statahead_mark(struct inode *dir, struct dentry *dentry)
1148 struct ll_inode_info *lli = ll_i2info(dir);
1149 struct ll_statahead_info *sai = lli->lli_sai;
1150 struct ll_dentry_data *ldd = ll_d2d(dentry);
1152 /* not the same process, don't mark */
1153 if (lli->lli_opendir_pid != current_pid())
1158 ldd->lld_sa_generation = sai->sai_generation;
1162 dentry_need_statahead(struct inode *dir, struct dentry *dentry)
1164 struct ll_inode_info *lli;
1165 struct ll_dentry_data *ldd;
1167 if (ll_i2sbi(dir)->ll_sa_max == 0)
1170 lli = ll_i2info(dir);
1173 * statahead is not allowed for this dir, there may be three causes:
1174 * 1. dir is not opened.
1175 * 2. statahead hit ratio is too low.
1176 * 3. previous stat started statahead thread failed.
1178 if (!lli->lli_sa_enabled)
1181 /* not the same process, don't statahead */
1182 if (lli->lli_opendir_pid != current_pid())
1185 ldd = ll_d2d(dentry);
1187 * When stats a dentry, the system trigger more than once "revalidate"
1188 * or "lookup", for "getattr", for "getxattr", and maybe for others.
1189 * Under patchless client mode, the operation intent is not accurate,
1190 * which maybe misguide the statahead thread. For example:
1191 * The "revalidate" call for "getattr" and "getxattr" of a dentry maybe
1192 * have the same operation intent -- "IT_GETATTR".
1193 * In fact, one dentry should has only one chance to interact with the
1194 * statahead thread, otherwise the statahead windows will be confused.
1195 * The solution is as following:
1196 * Assign "lld_sa_generation" with "sai_generation" when a dentry
1197 * "IT_GETATTR" for the first time, and the subsequent "IT_GETATTR"
1198 * will bypass interacting with statahead thread for checking:
1199 * "lld_sa_generation == lli_sai->sai_generation"
1201 if (ldd && lli->lli_sai &&
1202 ldd->lld_sa_generation == lli->lli_sai->sai_generation)
1209 ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int only_unplug)
1211 if (!dentry_need_statahead(dir, *dentryp))
1214 return do_statahead_enter(dir, dentryp, only_unplug);
1217 /* llite ioctl register support routine */
1223 #define LLIOC_MAX_CMD 256
1226 * Rules to write a callback function:
1229 * @magic: Dynamic ioctl call routine will feed this value with the pointer
1230 * returned to ll_iocontrol_register. Callback functions should use this
1231 * data to check the potential collasion of ioctl cmd. If collasion is
1232 * found, callback function should return LLIOC_CONT.
1233 * @rcp: The result of ioctl command.
1236 * If @magic matches the pointer returned by ll_iocontrol_data, the
1237 * callback should return LLIOC_STOP; return LLIOC_STOP otherwise.
1239 typedef enum llioc_iter (*llioc_callback_t)(struct inode *inode,
1240 struct file *file, unsigned int cmd, unsigned long arg,
1241 void *magic, int *rcp);
1243 /* export functions */
1244 /* Register ioctl block dynamatically for a regular file.
1246 * @cmd: the array of ioctl command set
1247 * @count: number of commands in the @cmd
1248 * @cb: callback function, it will be called if an ioctl command is found to
1249 * belong to the command list @cmd.
1252 * A magic pointer will be returned if success;
1253 * otherwise, NULL will be returned.
1255 void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd);
1256 void ll_iocontrol_unregister(void *magic);
1258 int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
1259 enum cl_fsync_mode mode, int ignore_layout);
1261 /** direct write pages */
1262 struct ll_dio_pages {
1263 /** page array to be written. we don't support
1264 * partial pages except the last one.
1266 struct page **ldp_pages;
1267 /* offset of each page */
1268 loff_t *ldp_offsets;
1269 /** if ldp_offsets is NULL, it means a sequential
1270 * pages to be written, then this is the file offset
1271 * of the first page.
1273 loff_t ldp_start_offset;
1274 /** how many bytes are to be written. */
1276 /** # of pages in the array. */
1280 static inline void cl_stats_tally(struct cl_device *dev, enum cl_req_type crt,
1283 int opc = (crt == CRT_READ) ? LPROC_LL_OSC_READ :
1286 ll_stats_ops_tally(ll_s2sbi(cl2vvp_dev(dev)->vdv_sb), opc, rc);
1289 ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
1290 int rw, struct inode *inode,
1291 struct ll_dio_pages *pv);
1293 static inline int ll_file_nolock(const struct file *file)
1295 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1296 struct inode *inode = file_inode(file);
1298 return ((fd->fd_flags & LL_FILE_IGNORE_LOCK) ||
1299 (ll_i2sbi(inode)->ll_flags & LL_SBI_NOLCK));
1302 static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
1303 struct lookup_intent *it, __u64 *bits)
1305 if (!it->it_lock_set) {
1306 struct lustre_handle handle;
1308 /* If this inode is a remote object, it will get two
1309 * separate locks in different namespaces, Master MDT,
1310 * where the name entry is, will grant LOOKUP lock,
1311 * remote MDT, where the object is, will grant
1312 * UPDATE|PERM lock. The inode will be attached to both
1313 * LOOKUP and PERM locks, so revoking either locks will
1314 * case the dcache being cleared
1316 if (it->it_remote_lock_mode) {
1317 handle.cookie = it->it_remote_lock_handle;
1318 CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"%p for remote lock %#llx\n",
1319 PFID(ll_inode2fid(inode)), inode,
1321 md_set_lock_data(exp, &handle, inode, NULL);
1324 handle.cookie = it->it_lock_handle;
1326 CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"%p for lock %#llx\n",
1327 PFID(ll_inode2fid(inode)), inode, handle.cookie);
1329 md_set_lock_data(exp, &handle, inode, &it->it_lock_bits);
1330 it->it_lock_set = 1;
1334 *bits = it->it_lock_bits;
1337 static inline int d_lustre_invalid(const struct dentry *dentry)
1339 struct ll_dentry_data *lld = ll_d2d(dentry);
1341 return !lld || lld->lld_invalid;
1344 static inline void __d_lustre_invalidate(struct dentry *dentry)
1346 struct ll_dentry_data *lld = ll_d2d(dentry);
1349 lld->lld_invalid = 1;
1353 * Mark dentry INVALID, if dentry refcount is zero (this is normally case for
1354 * ll_md_blocking_ast), unhash this dentry, and let dcache to reclaim it later;
1355 * else dput() of the last refcount will unhash this dentry and kill it.
1357 static inline void d_lustre_invalidate(struct dentry *dentry, int nested)
1359 CDEBUG(D_DENTRY, "invalidate dentry %pd (%p) parent %p inode %p refc %d\n",
1361 dentry->d_parent, d_inode(dentry), d_count(dentry));
1363 spin_lock_nested(&dentry->d_lock,
1364 nested ? DENTRY_D_LOCK_NESTED : DENTRY_D_LOCK_NORMAL);
1365 __d_lustre_invalidate(dentry);
1367 * We should be careful about dentries created by d_obtain_alias().
1368 * These dentries are not put in the dentry tree, instead they are
1369 * linked to sb->s_anon through dentry->d_hash.
1370 * shrink_dcache_for_umount() shrinks the tree and sb->s_anon list.
1371 * If we unhashed such a dentry, unmount would not be able to find
1372 * it and busy inodes would be reported.
1374 if (d_count(dentry) == 0 && !(dentry->d_flags & DCACHE_DISCONNECTED))
1376 spin_unlock(&dentry->d_lock);
1379 static inline void d_lustre_revalidate(struct dentry *dentry)
1381 spin_lock(&dentry->d_lock);
1382 LASSERT(ll_d2d(dentry));
1383 ll_d2d(dentry)->lld_invalid = 0;
1384 spin_unlock(&dentry->d_lock);
1388 LL_LAYOUT_GEN_NONE = ((__u32)-2), /* layout lock was cancelled */
1389 LL_LAYOUT_GEN_EMPTY = ((__u32)-1) /* for empty layout */
1392 int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf);
1393 int ll_layout_refresh(struct inode *inode, __u32 *gen);
1394 int ll_layout_restore(struct inode *inode, loff_t start, __u64 length);
1396 int ll_xattr_init(void);
1397 void ll_xattr_fini(void);
1399 int ll_page_sync_io(const struct lu_env *env, struct cl_io *io,
1400 struct cl_page *page, enum cl_req_type crt);
1403 int cl_setattr_ost(struct inode *inode, const struct iattr *attr);
1405 extern struct lu_env *cl_inode_fini_env;
1406 extern int cl_inode_fini_refcheck;
1408 int cl_file_inode_init(struct inode *inode, struct lustre_md *md);
1409 void cl_inode_fini(struct inode *inode);
1410 int cl_local_size(struct inode *inode);
1412 __u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
1413 __u32 cl_fid_build_gen(const struct lu_fid *fid);
1415 #endif /* LLITE_INTERNAL_H */