-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
/* for struct cl_lock_descr and struct cl_io */
#include <cl_object.h>
#include <lclient.h>
+#include <lustre_mdc.h>
+#include <linux/lustre_intent.h>
#ifndef FMODE_EXEC
#define FMODE_EXEC 0
#endif
-#define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0")
-#define LUSTRE_FPRIVATE(file) ((file)->private_data)
+#ifndef VM_FAULT_RETRY
+#define VM_FAULT_RETRY 0
+#endif
-#ifdef HAVE_VFS_INTENT_PATCHES
-static inline struct lookup_intent *ll_nd2it(struct nameidata *nd)
-{
- return &nd->intent;
-}
+/* Kernel 3.1 kills LOOKUP_CONTINUE, LOOKUP_PARENT is equivalent to it.
+ * seem kernel commit 49084c3bb2055c401f3493c13edae14d49128ca0 */
+#ifndef LOOKUP_CONTINUE
+#define LOOKUP_CONTINUE LOOKUP_PARENT
+#endif
+
+/** Only used on client-side for indicating the tail of dir hash/offset. */
+#define LL_DIR_END_OFF 0x7fffffffffffffffULL
+#define LL_DIR_END_OFF_32BIT 0x7fffffffUL
+
+#ifndef DCACHE_LUSTRE_INVALID
+#define DCACHE_LUSTRE_INVALID 0x4000000
#endif
+#define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0")
+#define LUSTRE_FPRIVATE(file) ((file)->private_data)
+
struct ll_dentry_data {
int lld_cwd_count;
int lld_mnt_count;
struct obd_client_handle lld_cwd_och;
struct obd_client_handle lld_mnt_och;
-#ifndef HAVE_VFS_INTENT_PATCHES
struct lookup_intent *lld_it;
-#endif
unsigned int lld_sa_generation;
};
/* remote client permission cache */
#define REMOTE_PERM_HASHSIZE 16
+struct ll_getname_data {
+ char *lgd_name; /* points to a buffer with NAME_MAX+1 size */
+ struct lu_fid lgd_fid; /* target fid we are looking for */
+ int lgd_found; /* inode matched? */
+};
+
/* llite setxid/access permission for user on remote client */
struct ll_remote_perm {
- struct hlist_node lrp_list;
+ cfs_hlist_node_t lrp_list;
uid_t lrp_uid;
gid_t lrp_gid;
uid_t lrp_fsuid;
* be sent to MDS. */
LLIF_SOM_DIRTY = (1 << 3),
/* File is contented */
- LLIF_CONTENDED = (1 << 4),
+ LLIF_CONTENDED = (1 << 4),
/* Truncate uses server lock for this file */
- LLIF_SRVLOCK = (1 << 5)
+ LLIF_SRVLOCK = (1 << 5),
};
struct ll_inode_info {
- int lli_inode_magic;
- struct semaphore lli_size_sem; /* protect open and change size */
- void *lli_size_sem_owner;
- struct semaphore lli_write_sem;
- char *lli_symlink_name;
- __u64 lli_maxbytes;
- __u64 lli_ioepoch;
- unsigned long lli_flags;
- cfs_time_t lli_contention_time;
-
- /* this lock protects posix_acl, pending_write_llaps, mmap_cnt */
- spinlock_t lli_lock;
- struct list_head lli_close_list;
- /* handle is to be sent to MDS later on done_writing and setattr.
- * Open handle data are needed for the recovery to reconstruct
- * the inode state on the MDS. XXX: recovery is not ready yet. */
- struct obd_client_handle *lli_pending_och;
-
- /* for writepage() only to communicate to fsync */
- int lli_async_rc;
+ __u32 lli_inode_magic;
+ __u32 lli_flags;
+ __u64 lli_ioepoch;
- struct posix_acl *lli_posix_acl;
+ cfs_spinlock_t lli_lock;
+ struct posix_acl *lli_posix_acl;
- /* remote permission hash */
- struct hlist_head *lli_remote_perms;
- unsigned long lli_rmtperm_utime;
- struct semaphore lli_rmtperm_sem;
-
- struct list_head lli_dead_list;
-
- struct semaphore lli_och_sem; /* Protects access to och pointers
- and their usage counters */
- /* We need all three because every inode may be opened in different
- modes */
- struct obd_client_handle *lli_mds_read_och;
- __u64 lli_open_fd_read_count;
- struct obd_client_handle *lli_mds_write_och;
- __u64 lli_open_fd_write_count;
- struct obd_client_handle *lli_mds_exec_och;
- __u64 lli_open_fd_exec_count;
-
- struct inode lli_vfs_inode;
+ cfs_hlist_head_t *lli_remote_perms;
+ cfs_mutex_t lli_rmtperm_mutex;
/* identifying fields for both metadata and data stacks. */
- struct lu_fid lli_fid;
- struct lov_stripe_md *lli_smd;
+ struct lu_fid lli_fid;
+ /* Parent fid for accessing default stripe data on parent directory
+ * for allocating OST objects after a mknod() and later open-by-FID. */
+ struct lu_fid lli_pfid;
- /* fid capability */
+ cfs_list_t lli_close_list;
+ cfs_list_t lli_oss_capas;
/* open count currently used by capability only, indicate whether
* capability needs renewal */
- atomic_t lli_open_count;
- struct obd_capa *lli_mds_capa;
- struct list_head lli_oss_capas;
+ cfs_atomic_t lli_open_count;
+ struct obd_capa *lli_mds_capa;
+ cfs_time_t lli_rmtperm_time;
- /* metadata stat-ahead */
- /*
- * "opendir_pid" is the token when lookup/revalid -- I am the owner of
- * dir statahead.
+ /* handle is to be sent to MDS later on done_writing and setattr.
+ * Open handle data are needed for the recovery to reconstruct
+ * the inode state on the MDS. XXX: recovery is not ready yet. */
+ struct obd_client_handle *lli_pending_och;
+
+ /* We need all three because every inode may be opened in different
+ * modes */
+ struct obd_client_handle *lli_mds_read_och;
+ struct obd_client_handle *lli_mds_write_och;
+ struct obd_client_handle *lli_mds_exec_och;
+ __u64 lli_open_fd_read_count;
+ __u64 lli_open_fd_write_count;
+ __u64 lli_open_fd_exec_count;
+ /* Protects access to och pointers and their usage counters, also
+ * atomicity of check-update of lli_has_smd */
+ cfs_mutex_t lli_och_mutex;
+
+ struct inode lli_vfs_inode;
+
+ /* the most recent timestamps obtained from mds */
+ struct ost_lvb lli_lvb;
+ cfs_spinlock_t lli_agl_lock;
+
+ /* Try to make the d::member and f::member are aligned. Before using
+ * these members, make clear whether it is directory or not. */
+ union {
+ /* for directory */
+ struct {
+ /* serialize normal readdir and statahead-readdir. */
+ cfs_mutex_t d_readdir_mutex;
+
+ /* metadata statahead */
+ /* since parent-child threads can share the same @file
+ * struct, "opendir_key" is the token when dir close for
+ * case of parent exit before child -- it is me should
+ * cleanup the dir readahead. */
+ void *d_opendir_key;
+ struct ll_statahead_info *d_sai;
+ struct posix_acl *d_def_acl;
+ /* protect statahead stuff. */
+ cfs_spinlock_t d_sa_lock;
+ /* "opendir_pid" is the token when lookup/revalid
+ * -- I am the owner of dir statahead. */
+ pid_t d_opendir_pid;
+ } d;
+
+#define lli_readdir_mutex u.d.d_readdir_mutex
+#define lli_opendir_key u.d.d_opendir_key
+#define lli_sai u.d.d_sai
+#define lli_def_acl u.d.d_def_acl
+#define lli_sa_lock u.d.d_sa_lock
+#define lli_opendir_pid u.d.d_opendir_pid
+
+ /* for non-directory */
+ struct {
+ cfs_semaphore_t f_size_sem;
+ void *f_size_sem_owner;
+ char *f_symlink_name;
+ __u64 f_maxbytes;
+ /*
+ * cfs_rw_semaphore_t {
+ * signed long count; // align u.d.d_def_acl
+ * cfs_spinlock_t wait_lock; // align u.d.d_sa_lock
+ * struct list_head wait_list;
+ * }
+ */
+ cfs_rw_semaphore_t f_trunc_sem;
+ cfs_mutex_t f_write_mutex;
+
+ cfs_rw_semaphore_t f_glimpse_sem;
+ cfs_time_t f_glimpse_time;
+ cfs_list_t f_agl_list;
+ __u64 f_agl_index;
+
+ /* for writepage() only to communicate to fsync */
+ int f_async_rc;
+
+ /*
+ * whenever a process try to read/write the file, the
+ * jobid of the process will be saved here, and it'll
+ * be packed into the write PRC when flush later.
+ *
+ * so the read/write statistics for jobid will not be
+ * accurate if the file is shared by different jobs.
+ */
+ char f_jobid[JOBSTATS_JOBID_SIZE];
+ } f;
+
+#define lli_size_sem u.f.f_size_sem
+#define lli_size_sem_owner u.f.f_size_sem_owner
+#define lli_symlink_name u.f.f_symlink_name
+#define lli_maxbytes u.f.f_maxbytes
+#define lli_trunc_sem u.f.f_trunc_sem
+#define lli_write_mutex u.f.f_write_mutex
+#define lli_glimpse_sem u.f.f_glimpse_sem
+#define lli_glimpse_time u.f.f_glimpse_time
+#define lli_agl_list u.f.f_agl_list
+#define lli_agl_index u.f.f_agl_index
+#define lli_async_rc u.f.f_async_rc
+#define lli_jobid u.f.f_jobid
+
+ } u;
+
+ /* XXX: For following frequent used members, although they maybe special
+ * used for non-directory object, it is some time-wasting to check
+ * whether the object is directory or not before using them. On the
+ * other hand, currently, sizeof(f) > sizeof(d), it cannot reduce
+ * the "ll_inode_info" size even if moving those members into u.f.
+ * So keep them out side.
+ *
+ * In the future, if more members are added only for directory,
+ * some of the following members can be moved into u.f.
*/
- pid_t lli_opendir_pid;
- /*
- * since parent-child threads can share the same @file struct,
- * "opendir_key" is the token when dir close for case of parent exit
- * before child -- it is me should cleanup the dir readahead. */
- void *lli_opendir_key;
- struct ll_statahead_info *lli_sai;
- struct cl_object *lli_clob;
+ bool lli_has_smd;
+ struct cl_object *lli_clob;
+
+ /* mutex to request for layout lock exclusively. */
+ cfs_mutex_t lli_layout_mutex;
};
/*
* Locking to guarantee consistency of non-atomic updates to long long i_size,
- * consistency between file size and KMS, and consistency within
- * ->lli_smd->lsm_oinfo[]'s.
+ * consistency between file size and KMS.
*
- * Implemented by ->lli_size_sem and ->lsm_sem, nested in that order.
+ * Implemented by ->lli_size_sem and ->lsm_lock, nested in that order.
*/
-void ll_inode_size_lock(struct inode *inode, int lock_lsm);
-void ll_inode_size_unlock(struct inode *inode, int unlock_lsm);
+void ll_inode_size_lock(struct inode *inode);
+void ll_inode_size_unlock(struct inode *inode);
// FIXME: replace the name of this with LL_I to conform to kernel stuff
// static inline struct ll_inode_info *LL_I(struct inode *inode)
};
struct ll_ra_info {
- atomic_t ra_cur_pages;
+ cfs_atomic_t ra_cur_pages;
unsigned long ra_max_pages;
unsigned long ra_max_pages_per_file;
unsigned long ra_max_read_ahead_whole_pages;
#define LL_SBI_FLOCK 0x04
#define LL_SBI_USER_XATTR 0x08 /* support user xattr */
#define LL_SBI_ACL 0x10 /* support ACL */
-#define LL_SBI_JOIN 0x20 /* support JOIN */
#define LL_SBI_RMT_CLIENT 0x40 /* remote client */
#define LL_SBI_MDS_CAPA 0x80 /* support mds capa */
#define LL_SBI_OSS_CAPA 0x100 /* support oss capa */
#define LL_SBI_LOCALFLOCK 0x200 /* Local flocks support by kernel */
#define LL_SBI_LRU_RESIZE 0x400 /* lru resize support */
#define LL_SBI_LAZYSTATFS 0x800 /* lazystatfs mount option */
+#define LL_SBI_SOM_PREVIEW 0x1000 /* SOM preview mount option */
+#define LL_SBI_32BIT_API 0x2000 /* generate 32 bit inodes. */
+#define LL_SBI_64BIT_HASH 0x4000 /* support 64-bits dir hash/offset */
+#define LL_SBI_AGL_ENABLED 0x8000 /* enable agl */
+#define LL_SBI_VERBOSE 0x10000 /* verbose mount/umount */
+#define LL_SBI_LAYOUT_LOCK 0x20000 /* layout lock support */
+#define LL_SBI_USER_FID2PATH 0x40000 /* allow fid2path by unprivileged users */
/* default value for ll_sb_info->contention_time */
#define SBI_DEFAULT_CONTENTION_SECONDS 60
#define RCE_HASHES 32
struct rmtacl_ctl_entry {
- struct list_head rce_list;
+ cfs_list_t rce_list;
pid_t rce_key; /* hash key */
int rce_ops; /* acl operation type */
};
struct rmtacl_ctl_table {
- spinlock_t rct_lock;
- struct list_head rct_entries[RCE_HASHES];
+ cfs_spinlock_t rct_lock;
+ cfs_list_t rct_entries[RCE_HASHES];
};
#define EE_HASHES 32
struct eacl_entry {
- struct list_head ee_list;
+ cfs_list_t ee_list;
pid_t ee_key; /* hash key */
struct lu_fid ee_fid;
int ee_type; /* ACL type for ACCESS or DEFAULT */
};
struct eacl_table {
- spinlock_t et_lock;
- struct list_head et_entries[EE_HASHES];
+ cfs_spinlock_t et_lock;
+ cfs_list_t et_entries[EE_HASHES];
};
struct ll_sb_info {
- struct list_head ll_list;
+ cfs_list_t ll_list;
/* this protects pglist and ra_info. It isn't safe to
* grab from interrupt contexts */
- spinlock_t ll_lock;
- spinlock_t ll_pp_extent_lock; /* Lock for pp_extent entries */
- spinlock_t ll_process_lock; /* Lock for ll_rw_process_info */
+ cfs_spinlock_t ll_lock;
+ cfs_spinlock_t ll_pp_extent_lock; /* Lock for pp_extent entries */
+ cfs_spinlock_t ll_process_lock; /* Lock for ll_rw_process_info */
struct obd_uuid ll_sb_uuid;
struct obd_export *ll_md_exp;
struct obd_export *ll_dt_exp;
struct lu_fid ll_root_fid; /* root object fid */
int ll_flags;
- struct list_head ll_conn_chain; /* per-conn chain of SBs */
+ cfs_list_t ll_conn_chain; /* per-conn chain of SBs */
struct lustre_client_ocd ll_lco;
- struct list_head ll_orphan_dentry_list; /*please don't ask -p*/
+ cfs_list_t ll_orphan_dentry_list; /*please don't ask -p*/
struct ll_close_queue *ll_lcq;
struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
- unsigned long ll_async_page_max;
- unsigned long ll_async_page_count;
+ struct cl_client_lru ll_lru;
struct lprocfs_stats *ll_ra_stats;
unsigned int ll_namelen;
struct file_operations *ll_fop;
-#ifdef HAVE_EXPORT___IGET
- struct list_head ll_deathrow; /* inodes to be destroyed (b1443) */
- spinlock_t ll_deathrow_lock;
-#endif
/* =0 - hold lock over whole read/write
* >0 - max. chunk to be read/written w/o lock re-acquiring */
unsigned long ll_max_rw_chunk;
+ unsigned int ll_md_brw_size; /* used by readdir */
struct lu_site *ll_site;
struct cl_device *ll_cl;
unsigned int ll_offset_process_count;
struct ll_rw_process_info ll_rw_offset_info[LL_OFFSET_HIST_MAX];
unsigned int ll_rw_offset_entry_count;
- enum stats_track_type ll_stats_track_type;
int ll_stats_track_id;
+ enum stats_track_type ll_stats_track_type;
int ll_rw_stats_on;
/* metadata stat-ahead */
unsigned int ll_sa_max; /* max statahead RPCs */
- unsigned int ll_sa_wrong; /* statahead thread stopped for
- * low hit ratio */
- unsigned int ll_sa_total; /* statahead thread started
+ atomic_t ll_sa_total; /* statahead thread started
* count */
- unsigned long long ll_sa_blocked; /* ls count waiting for
- * statahead */
- unsigned long long ll_sa_cached; /* ls count got in cache */
- unsigned long long ll_sa_hit; /* hit count */
- unsigned long long ll_sa_miss; /* miss count */
+ atomic_t ll_sa_wrong; /* statahead thread stopped for
+ * low hit ratio */
+ atomic_t ll_agl_total; /* AGL thread started count */
dev_t ll_sdev_orig; /* save s_dev before assign for
* clustred nfs */
pgoff_t lrr_start;
pgoff_t lrr_count;
struct task_struct *lrr_reader;
- struct list_head lrr_linkage;
+ cfs_list_t lrr_linkage;
};
/*
* per file-descriptor read-ahead data.
*/
struct ll_readahead_state {
- spinlock_t ras_lock;
+ cfs_spinlock_t ras_lock;
/*
* index of the last page that read(2) needed and that wasn't in the
* cache. Used by ras_update() to detect seeks.
* progress against this file descriptor. Used by read-ahead code,
* protected by ->ras_lock.
*/
- struct list_head ras_read_beads;
+ cfs_list_t ras_read_beads;
/*
* The following 3 items are used for detecting the stride I/O
* mode.
* ras_stride_pages = stride_pages;
* Note: all these three items are counted by pages.
*/
- unsigned long ras_stride_length;
- unsigned long ras_stride_pages;
- pgoff_t ras_stride_offset;
+ unsigned long ras_stride_length;
+ unsigned long ras_stride_pages;
+ pgoff_t ras_stride_offset;
/*
* number of consecutive stride request count, and it is similar as
* ras_consecutive_requests, but used for stride I/O mode.
* Note: only more than 2 consecutive stride request are detected,
* stride read-ahead will be enable
*/
- unsigned long ras_consecutive_stride_requests;
-};
-
-struct ll_file_dir {
+ unsigned long ras_consecutive_stride_requests;
};
extern cfs_mem_cache_t *ll_file_data_slab;
struct ll_readahead_state fd_ras;
int fd_omode;
struct ccc_grouplock fd_grouplock;
- struct ll_file_dir fd_dir;
+ __u64 lfd_pos;
__u32 fd_flags;
struct file *fd_file;
+ /* Indicate whether need to report failure when close.
+ * true: failure is known, not report again.
+ * false: unknown failure, should report. */
+ bool fd_write_failed;
};
struct lov_stripe_md;
-extern spinlock_t inode_lock;
+extern cfs_spinlock_t inode_lock;
extern struct proc_dir_entry *proc_lustre_fs_root;
}
struct it_cb_data {
- struct inode *icbd_parent;
+ struct inode *icbd_parent;
struct dentry **icbd_childp;
- obd_id hash;
+ obd_id hash;
};
__u32 ll_i2suppgid(struct inode *i);
void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2);
+static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
+{
+#if BITS_PER_LONG == 32
+ return 1;
+#else
+ return unlikely(cfs_curproc_is_32bit() || (sbi->ll_flags & LL_SBI_32BIT_API));
+#endif
+}
+
#define LLAP_MAGIC 98764321
extern cfs_mem_cache_t *ll_async_page_slab;
extern size_t ll_async_page_slab_size;
-#ifdef HAVE_REGISTER_CACHE
-#include <linux/cache_def.h>
-#define ll_register_cache(cache) register_cache(cache)
-#define ll_unregister_cache(cache) unregister_cache(cache)
-#elif defined(HAVE_SHRINKER_CACHE)
-struct cache_definition {
- const char *name;
- shrinker_t shrink;
- struct shrinker *shrinker;
-};
-
-#define ll_register_cache(cache) do { \
- struct cache_definition *c = (cache); \
- c->shrinker = set_shrinker(DEFAULT_SEEKS, c->shrink); \
-} while(0)
-
-#define ll_unregister_cache(cache) do { \
- remove_shrinker((cache)->shrinker); \
- (cache)->shrinker = NULL; \
-} while(0)
-#else
-#define ll_register_cache(cache) do {} while (0)
-#define ll_unregister_cache(cache) do {} while (0)
-#endif
-
void ll_ra_read_in(struct file *f, struct ll_ra_read *rar);
void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar);
struct ll_ra_read *ll_ra_read_get(struct file *f);
/* llite/dir.c */
-static inline void ll_put_page(struct page *page)
-{
- kunmap(page);
- page_cache_release(page);
-}
-
+void ll_release_page(struct page *page, int remove);
extern struct file_operations ll_dir_operations;
extern struct inode_operations ll_dir_inode_operations;
-struct page *ll_get_dir_page(struct inode *dir, __u64 hash, int exact,
+struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
struct ll_dir_chain *chain);
+int ll_dir_read(struct inode *inode, __u64 *_pos, void *cookie,
+ filldir_t filldir);
+
+int ll_get_mdt_idx(struct inode *inode);
/* llite/namei.c */
int ll_objects_destroy(struct ptlrpc_request *request,
struct inode *dir);
struct lustre_md *lic);
int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
void *data, int flag);
-#ifndef HAVE_VFS_INTENT_PATCHES
struct lookup_intent *ll_convert_intent(struct open_intent *oit,
int lookup_flags);
-#endif
int ll_lookup_it_finish(struct ptlrpc_request *request,
struct lookup_intent *it, void *data);
-void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
+struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de);
/* llite/rw.c */
int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to);
int ll_writepage(struct page *page, struct writeback_control *wbc);
+int ll_writepages(struct address_space *, struct writeback_control *wbc);
void ll_removepage(struct page *page);
int ll_readpage(struct file *file, struct page *page);
void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
-void ll_truncate(struct inode *inode);
int ll_file_punch(struct inode *, loff_t, int);
ssize_t ll_file_lockless_io(struct file *, char *, size_t, loff_t *, int);
void ll_clear_file_contended(struct inode*);
int ll_sync_page_range(struct inode *, struct address_space *, loff_t, size_t);
-int ll_readahead(const struct lu_env *env, struct cl_io *io, struct ll_readahead_state *ras,
- struct address_space *mapping, struct cl_page_list *queue, int flags);
+int ll_readahead(const struct lu_env *env, struct cl_io *io,
+ struct ll_readahead_state *ras, struct address_space *mapping,
+ struct cl_page_list *queue, int flags);
/* llite/file.c */
extern struct file_operations ll_file_operations;
extern struct file_operations ll_file_operations_flock;
extern struct file_operations ll_file_operations_noflock;
extern struct inode_operations ll_file_inode_operations;
-extern int ll_inode_revalidate_it(struct dentry *, struct lookup_intent *);
-extern int ll_have_md_lock(struct inode *inode, __u64 bits);
+extern int ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
+ __u64);
+extern int ll_have_md_lock(struct inode *inode, __u64 *bits,
+ ldlm_mode_t l_req_mode);
extern ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
struct lustre_handle *lockh);
-int __ll_inode_revalidate_it(struct dentry *, struct lookup_intent *, __u64 bits);
+int __ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
+ __u64 bits);
int ll_revalidate_nd(struct dentry *dentry, struct nameidata *nd);
int ll_file_open(struct inode *inode, struct file *file);
int ll_file_release(struct inode *inode, struct file *file);
int ll_md_close(struct obd_export *md_exp, struct inode *inode,
struct file *file);
int ll_md_real_close(struct inode *inode, int flags);
-void ll_epoch_close(struct inode *inode, struct md_op_data *op_data,
- struct obd_client_handle **och, unsigned long flags);
-int ll_sizeonmds_update(struct inode *inode, struct lustre_handle *fh,
- __u64 ioepoch);
-int ll_inode_getattr(struct inode *inode, struct obdo *obdo);
-int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
+void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
+ struct obd_client_handle **och, unsigned long flags);
+void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data);
+int ll_som_update(struct inode *inode, struct md_op_data *op_data);
+int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
+ __u64 ioepoch, int sync);
+int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
struct md_open_data **mod);
void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
struct lustre_handle *fh);
struct lookup_intent *it, struct kstat *stat);
int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
struct ll_file_data *ll_file_data_get(void);
+#ifdef HAVE_GENERIC_PERMISSION_4ARGS
+int ll_inode_permission(struct inode *inode, int mask, unsigned int flags);
+#else
+# ifndef HAVE_INODE_PERMISION_2ARGS
int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd);
+# else
+int ll_inode_permission(struct inode *inode, int mask);
+# endif
+#endif
int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file,
int flags, struct lov_user_md *lum,
int lum_size);
int set_default);
int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmm,
int *lmm_size, struct ptlrpc_request **request);
+#ifdef HAVE_FILE_FSYNC_4ARGS
+int ll_fsync(struct file *file, loff_t start, loff_t end, int data);
+#elif defined(HAVE_FILE_FSYNC_2ARGS)
+int ll_fsync(struct file *file, int data);
+#else
int ll_fsync(struct file *file, struct dentry *dentry, int data);
-int ll_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
+#endif
+int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
int num_bytes);
int ll_merge_lvb(struct inode *inode);
int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg);
int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
-int ll_fid2path(struct obd_export *exp, void *arg);
+int ll_fid2path(struct inode *inode, void *arg);
/* llite/dcache.c */
-/* llite/namei.c */
-/**
- * protect race ll_find_aliases vs ll_revalidate_it vs ll_unhash_aliases
- */
-extern spinlock_t ll_lookup_lock;
+
+int ll_dops_init(struct dentry *de, int block, int init_sa);
extern struct dentry_operations ll_d_ops;
void ll_intent_drop_lock(struct lookup_intent *);
void ll_intent_release(struct lookup_intent *);
-int ll_drop_dentry(struct dentry *dentry);
-extern void ll_set_dd(struct dentry *de);
-int ll_drop_dentry(struct dentry *dentry);
-void ll_unhash_aliases(struct inode *);
+void ll_invalidate_aliases(struct inode *);
void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft);
void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
+#ifdef HAVE_D_COMPARE_7ARGS
+int ll_dcompare(const struct dentry *parent, const struct inode *pinode,
+ const struct dentry *dentry, const struct inode *inode,
+ unsigned int len, const char *str, const struct qstr *d_name);
+#else
int ll_dcompare(struct dentry *parent, struct qstr *d_name, struct qstr *name);
+#endif
int ll_revalidate_it_finish(struct ptlrpc_request *request,
struct lookup_intent *it, struct dentry *de);
/* llite/llite_lib.c */
extern struct super_operations lustre_super_operations;
-void ll_dump_inode(struct inode *inode);
+
char *ll_read_opt(const char *opt, char *data);
void ll_lli_init(struct ll_inode_info *lli);
-int ll_fill_super(struct super_block *sb);
+int ll_fill_super(struct super_block *sb, struct vfsmount *mnt);
void ll_put_super(struct super_block *sb);
void ll_kill_super(struct super_block *sb);
struct inode *ll_inode_from_lock(struct ldlm_lock *lock);
void ll_clear_inode(struct inode *inode);
-int ll_setattr_raw(struct inode *inode, struct iattr *attr);
+int ll_setattr_raw(struct dentry *dentry, struct iattr *attr);
int ll_setattr(struct dentry *de, struct iattr *attr);
-#ifndef HAVE_STATFS_DENTRY_PARAM
-int ll_statfs(struct super_block *sb, struct kstatfs *sfs);
-#else
int ll_statfs(struct dentry *de, struct kstatfs *sfs);
-#endif
int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
__u64 max_age, __u32 flags);
void ll_update_inode(struct inode *inode, struct lustre_md *md);
#endif
int ll_remount_fs(struct super_block *sb, int *flags, char *data);
int ll_show_options(struct seq_file *seq, struct vfsmount *vfs);
+void ll_dirty_page_discard_warn(cfs_page_t *page, int ioret);
int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
struct super_block *);
void lustre_dump_dentry(struct dentry *, int recur);
const char *name, int namelen,
int mode, __u32 opc, void *data);
void ll_finish_md_op_data(struct md_op_data *op_data);
+int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg);
+char *ll_get_fsname(struct super_block *sb, char *buf, int buflen);
/* llite/llite_nfs.c */
extern struct export_operations lustre_export_operations;
__u32 get_uuid2int(const char *name, int len);
-struct dentry *ll_fh_to_dentry(struct super_block *sb, __u32 *data, int len,
- int fhtype, int parent);
-int ll_dentry_to_fh(struct dentry *, __u32 *datap, int *lenp, int need_parent);
/* llite/special.c */
extern struct inode_operations ll_special_inode_operations;
/* llite/llite_close.c */
struct ll_close_queue {
- spinlock_t lcq_lock;
- struct list_head lcq_head;
- wait_queue_head_t lcq_waitq;
- struct completion lcq_comp;
- atomic_t lcq_stop;
-};
-
-struct vvp_thread_info {
- struct ost_lvb vti_lvb;
- struct cl_2queue vti_queue;
- struct iovec vti_local_iov;
- struct ccc_io_args vti_args;
- struct ra_io_arg vti_ria;
- struct kiocb vti_kiocb;
+ cfs_spinlock_t lcq_lock;
+ cfs_list_t lcq_head;
+ cfs_waitq_t lcq_waitq;
+ cfs_completion_t lcq_comp;
+ cfs_atomic_t lcq_stop;
};
struct ccc_object *cl_inode2ccc(struct inode *inode);
-static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env)
-{
- extern struct lu_context_key vvp_key;
- struct vvp_thread_info *info;
-
- info = lu_context_key_get(&env->le_ctx, &vvp_key);
- LASSERT(info != NULL);
- return info;
-}
void vvp_write_pending (struct ccc_object *club, struct ccc_page *page);
void vvp_write_complete(struct ccc_object *club, struct ccc_page *page);
+/* specific achitecture can implement only part of this list */
+enum vvp_io_subtype {
+ /** normal IO */
+ IO_NORMAL,
+ /** io called from .sendfile */
+ IO_SENDFILE,
+ /** io started from splice_{read|write} */
+ IO_SPLICE
+};
+
+/* IO subtypes */
struct vvp_io {
+ /** io subtype */
+ enum vvp_io_subtype cui_io_subtype;
+
union {
struct {
read_actor_t cui_actor;
void *cui_target;
- } read;
+ } sendfile;
+ struct {
+ struct pipe_inode_info *cui_pipe;
+ unsigned int cui_flags;
+ } splice;
struct vvp_fault_io {
/**
* Inode modification time that is checked across DLM
time_t ft_mtime;
struct vm_area_struct *ft_vma;
/**
- * Virtual address at which fault occurred.
+ * locked page returned from vvp_io
*/
- unsigned long ft_address;
- /**
- * Fault type, as to be supplied to filemap_nopage().
- */
- int *ft_type;
+ cfs_page_t *ft_vmpage;
+#ifndef HAVE_VM_OP_FAULT
+ struct vm_nopage_api {
+ /**
+ * Virtual address at which fault occurred.
+ */
+ unsigned long ft_address;
+ /**
+ * Fault type, as to be supplied to
+ * filemap_nopage().
+ */
+ int *ft_type;
+ } nopage;
+#else
+ struct vm_fault_api {
+ /**
+ * kernel fault info
+ */
+ struct vm_fault *ft_vmf;
+ /**
+ * fault API used bitflags for return code.
+ */
+ unsigned int ft_flags;
+ } fault;
+#endif
} fault;
} u;
/**
*/
int cui_ra_window_set;
/**
- * If IO was created directly in low level method like
- * ->prepare_write(), this field stores the number of method calls
- * that constitute this IO. This field is decremented by ll_cl_fini(),
- * and cl_io is destroyed, when it reaches 0. When oneshot IO
- * completes, this fields is set to -1.
- */
-
- int cui_oneshot;
- /**
* Partially truncated page, that vvp_io_trunc_start() keeps locked
* across truncate.
*/
struct cl_page *cui_partpage;
};
+/**
+ * IO arguments for various VFS I/O interfaces.
+ */
+struct vvp_io_args {
+ /** normal/sendfile/splice */
+ enum vvp_io_subtype via_io_subtype;
+
+ union {
+ struct {
+#ifndef HAVE_FILE_WRITEV
+ struct kiocb *via_iocb;
+#endif
+ struct iovec *via_iov;
+ unsigned long via_nrsegs;
+ } normal;
+ struct {
+ read_actor_t via_actor;
+ void *via_target;
+ } sendfile;
+ struct {
+ struct pipe_inode_info *via_pipe;
+ unsigned int via_flags;
+ } splice;
+ } u;
+};
+
+struct ll_cl_context {
+ void *lcc_cookie;
+ struct cl_io *lcc_io;
+ struct cl_page *lcc_page;
+ struct lu_env *lcc_env;
+ int lcc_refcheck;
+ int lcc_created;
+};
+
+struct vvp_thread_info {
+ struct ost_lvb vti_lvb;
+ struct cl_2queue vti_queue;
+ struct iovec vti_local_iov;
+ struct vvp_io_args vti_args;
+ struct ra_io_arg vti_ria;
+ struct kiocb vti_kiocb;
+ struct ll_cl_context vti_io_ctx;
+};
+
+static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env)
+{
+ extern struct lu_context_key vvp_key;
+ struct vvp_thread_info *info;
+
+ info = lu_context_key_get(&env->le_ctx, &vvp_key);
+ LASSERT(info != NULL);
+ return info;
+}
+
+static inline struct vvp_io_args *vvp_env_args(const struct lu_env *env,
+ enum vvp_io_subtype type)
+{
+ struct vvp_io_args *ret = &vvp_env_info(env)->vti_args;
+
+ ret->via_io_subtype = type;
+
+ return ret;
+}
+
struct vvp_session {
- struct vvp_io vs_ios;
+ struct vvp_io vs_ios;
};
static inline struct vvp_session *vvp_env_session(const struct lu_env *env)
struct ll_lock_tree_node;
struct ll_lock_tree {
rb_root_t lt_root;
- struct list_head lt_locked_list;
- struct ll_file_data *lt_fd;
+ cfs_list_t lt_locked_list;
+ struct ll_file_data *lt_fd;
};
int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last);
__u64 end, ldlm_mode_t mode);
void policy_from_vma(ldlm_policy_data_t *policy,
struct vm_area_struct *vma, unsigned long addr, size_t count);
-struct vm_area_struct *our_vma(unsigned long addr, size_t count);
-
-#define ll_s2sbi(sb) (s2lsi(sb)->lsi_llsbi)
+struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
+ size_t count);
-static inline __u64 ll_ts2u64(struct timespec *time)
+static inline void ll_invalidate_page(struct page *vmpage)
{
- __u64 t = time->tv_sec;
- return t;
+ struct address_space *mapping = vmpage->mapping;
+ loff_t offset = vmpage->index << PAGE_CACHE_SHIFT;
+
+ LASSERT(PageLocked(vmpage));
+ if (mapping == NULL)
+ return;
+
+ ll_teardown_mmaps(mapping, offset, offset + CFS_PAGE_SIZE);
+ truncate_complete_page(mapping, vmpage);
}
+#define ll_s2sbi(sb) (s2lsi(sb)->lsi_llsbi)
+
/* don't need an addref as the sb_info should be holding one */
static inline struct obd_export *ll_s2dtexp(struct super_block *sb)
{
extern cfs_mem_cache_t *ll_remote_perm_cachep;
extern cfs_mem_cache_t *ll_rmtperm_hash_cachep;
-struct hlist_head *alloc_rmtperm_hash(void);
-void free_rmtperm_hash(struct hlist_head *hash);
+cfs_hlist_head_t *alloc_rmtperm_hash(void);
+void free_rmtperm_hash(cfs_hlist_head_t *hash);
int ll_update_remote_perm(struct inode *inode, struct mdt_remote_perm *perm);
int lustre_check_remote_perm(struct inode *inode, int mask);
-/* llite/llite_fid.c */
-ino_t ll_fid_build_ino(struct ll_sb_info *sbi, struct lu_fid *fid);
-__u32 ll_fid_build_gen(struct ll_sb_info *sbi, struct lu_fid *fid);
-
/* llite/llite_capa.c */
extern cfs_timer_t ll_capa_timer;
/**
* Common IO arguments for various VFS I/O interfaces.
*/
-
int cl_sb_init(struct super_block *sb);
int cl_sb_fini(struct super_block *sb);
-int cl_inode_init(struct inode *inode, struct lustre_md *md);
-void cl_inode_fini(struct inode *inode);
-
enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma);
void ll_io_init(struct cl_io *io, const struct file *file, int write);
/* statahead.c */
-#define LL_SA_RPC_MIN 2
-#define LL_SA_RPC_DEF 32
-#define LL_SA_RPC_MAX 8192
+#define LL_SA_RPC_MIN 2
+#define LL_SA_RPC_DEF 32
+#define LL_SA_RPC_MAX 8192
+
+#define LL_SA_CACHE_BIT 5
+#define LL_SA_CACHE_SIZE (1 << LL_SA_CACHE_BIT)
+#define LL_SA_CACHE_MASK (LL_SA_CACHE_SIZE - 1)
/* per inode struct, for dir only */
struct ll_statahead_info {
struct inode *sai_inode;
- unsigned int sai_generation; /* generation for statahead */
- atomic_t sai_refcount; /* when access this struct, hold
+ cfs_atomic_t sai_refcount; /* when access this struct, hold
* refcount */
- unsigned int sai_sent; /* stat requests sent count */
- unsigned int sai_replied; /* stat requests which received
- * reply */
+ unsigned int sai_generation; /* generation for statahead */
unsigned int sai_max; /* max ahead of lookup */
- unsigned int sai_index; /* index of statahead entry */
- unsigned int sai_index_next; /* index for the next statahead
- * entry to be stated */
- unsigned int sai_hit; /* hit count */
- unsigned int sai_miss; /* miss count:
+ __u64 sai_sent; /* stat requests sent count */
+ __u64 sai_replied; /* stat requests which received
+ * reply */
+ __u64 sai_index; /* index of statahead entry */
+ __u64 sai_index_wait; /* index of entry which is the
+ * caller is waiting for */
+ __u64 sai_hit; /* hit count */
+ __u64 sai_miss; /* miss count:
* for "ls -al" case, it includes
* hidden dentry miss;
* for "ls -l" case, it does not
unsigned int sai_miss_hidden;/* "ls -al", but first dentry
* is not a hidden one */
unsigned int sai_skip_hidden;/* skipped hidden dentry count */
- unsigned int sai_ls_all:1; /* "ls -al", do stat-ahead for
+ unsigned int sai_ls_all:1, /* "ls -al", do stat-ahead for
* hidden entries */
+ sai_in_readpage:1,/* statahead is in readdir()*/
+ sai_agl_valid:1;/* AGL is valid for the dir */
cfs_waitq_t sai_waitq; /* stat-ahead wait queue */
struct ptlrpc_thread sai_thread; /* stat-ahead thread */
- struct list_head sai_entries_sent; /* entries sent out */
- struct list_head sai_entries_received; /* entries returned */
- struct list_head sai_entries_stated; /* entries stated */
+ struct ptlrpc_thread sai_agl_thread; /* AGL thread */
+ cfs_list_t sai_entries_sent; /* entries sent out */
+ cfs_list_t sai_entries_received; /* entries returned */
+ cfs_list_t sai_entries_stated; /* entries stated */
+ cfs_list_t sai_entries_agl; /* AGL entries to be sent */
+ cfs_list_t sai_cache[LL_SA_CACHE_SIZE];
+ cfs_spinlock_t sai_cache_lock[LL_SA_CACHE_SIZE];
+ cfs_atomic_t sai_cache_count; /* entry count in cache */
};
-int do_statahead_enter(struct inode *dir, struct dentry **dentry, int lookup);
-void ll_statahead_exit(struct dentry *dentry, int result);
-void ll_stop_statahead(struct inode *inode, void *key);
+int do_statahead_enter(struct inode *dir, struct dentry **dentry,
+ int only_unplug);
+void ll_stop_statahead(struct inode *dir, void *key);
-static inline
-void ll_statahead_mark(struct dentry *dentry)
+static inline int ll_glimpse_size(struct inode *inode)
{
- struct ll_inode_info *lli = ll_i2info(dentry->d_parent->d_inode);
- struct ll_dentry_data *ldd = ll_d2d(dentry);
+ struct ll_inode_info *lli = ll_i2info(inode);
+ int rc;
+
+ cfs_down_read(&lli->lli_glimpse_sem);
+ rc = cl_glimpse_size(inode);
+ lli->lli_glimpse_time = cfs_time_current();
+ cfs_up_read(&lli->lli_glimpse_sem);
+ return rc;
+}
+
+static inline void
+ll_statahead_mark(struct inode *dir, struct dentry *dentry)
+{
+ struct ll_inode_info *lli = ll_i2info(dir);
+ struct ll_statahead_info *sai = lli->lli_sai;
+ struct ll_dentry_data *ldd = ll_d2d(dentry);
/* not the same process, don't mark */
if (lli->lli_opendir_pid != cfs_curproc_pid())
return;
- spin_lock(&lli->lli_lock);
- if (likely(lli->lli_sai != NULL && ldd != NULL))
- ldd->lld_sa_generation = lli->lli_sai->sai_generation;
- spin_unlock(&lli->lli_lock);
+ if (sai != NULL && ldd != NULL)
+ ldd->lld_sa_generation = sai->sai_generation;
}
-static inline
-int ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int lookup)
+static inline int
+ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int only_unplug)
{
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct ll_inode_info *lli = ll_i2info(dir);
- struct ll_dentry_data *ldd = ll_d2d(*dentryp);
+ struct ll_inode_info *lli;
+ struct ll_dentry_data *ldd;
- if (sbi->ll_sa_max == 0)
- return -ENOTSUPP;
+ if (ll_i2sbi(dir)->ll_sa_max == 0)
+ return -EAGAIN;
+ lli = ll_i2info(dir);
/* not the same process, don't statahead */
if (lli->lli_opendir_pid != cfs_curproc_pid())
- return -EBADF;
+ return -EAGAIN;
+ ldd = ll_d2d(*dentryp);
/*
- * When "ls" a dentry, the system trigger more than once "revalidate" or
- * "lookup", for "getattr", for "getxattr", and maybe for others.
+ * When stats a dentry, the system trigger more than once "revalidate"
+ * or "lookup", for "getattr", for "getxattr", and maybe for others.
* Under patchless client mode, the operation intent is not accurate,
- * it maybe misguide the statahead thread. For example:
+ * which maybe misguide the statahead thread. For example:
* The "revalidate" call for "getattr" and "getxattr" of a dentry maybe
* have the same operation intent -- "IT_GETATTR".
* In fact, one dentry should has only one chance to interact with the
ldd->lld_sa_generation == lli->lli_sai->sai_generation)
return -EAGAIN;
- return do_statahead_enter(dir, dentryp, lookup);
-}
-
-static void inline ll_dops_init(struct dentry *de, int block)
-{
- struct ll_dentry_data *lld = ll_d2d(de);
-
- if (lld == NULL && block != 0) {
- ll_set_dd(de);
- lld = ll_d2d(de);
- }
-
- if (lld != NULL)
- lld->lld_sa_generation = 0;
-
- de->d_op = &ll_d_ops;
+ return do_statahead_enter(dir, dentryp, only_unplug);
}
/* llite ioctl register support rountine */
#define cl_i2info(info) ll_i2info(info)
#define cl_inode_mode(inode) ((inode)->i_mode)
#define cl_i2sbi ll_i2sbi
-#define cl_isize_read(inode) i_size_read(inode)
-#define cl_isize_write(inode,kms) i_size_write(inode, kms)
-#define cl_isize_write_nolock(inode,kms) do {(inode)->i_size=(kms);}while(0)
-static inline void cl_isize_lock(struct inode *inode, int lsmlock)
+static inline struct ll_file_data *cl_iattr2fd(struct inode *inode,
+ const struct iattr *attr)
+{
+ LASSERT(attr->ia_valid & ATTR_FILE);
+ return LUSTRE_FPRIVATE(attr->ia_file);
+}
+
+static inline void cl_isize_lock(struct inode *inode)
+{
+ ll_inode_size_lock(inode);
+}
+
+static inline void cl_isize_unlock(struct inode *inode)
{
- ll_inode_size_lock(inode, lsmlock);
+ ll_inode_size_unlock(inode);
}
-static inline void cl_isize_unlock(struct inode *inode, int lsmlock)
+static inline void cl_isize_write_nolock(struct inode *inode, loff_t kms)
{
- ll_inode_size_unlock(inode, lsmlock);
+ LASSERT_SEM_LOCKED(&ll_i2info(inode)->lli_size_sem);
+ i_size_write(inode, kms);
}
+static inline void cl_isize_write(struct inode *inode, loff_t kms)
+{
+ ll_inode_size_lock(inode);
+ i_size_write(inode, kms);
+ ll_inode_size_unlock(inode);
+}
+
+#define cl_isize_read(inode) i_size_read(inode)
+
static inline int cl_merge_lvb(struct inode *inode)
{
return ll_merge_lvb(inode);
struct obd_capa *cl_capa_lookup(struct inode *inode, enum cl_req_type crt);
+int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
+ enum cl_fsync_mode mode);
+
/** direct write pages */
struct ll_dio_pages {
/** page array to be written. we don't support
int ldp_nr;
};
+static inline void cl_stats_tally(struct cl_device *dev, enum cl_req_type crt,
+ int rc)
+{
+ int opc = (crt == CRT_READ) ? LPROC_LL_OSC_READ :
+ LPROC_LL_OSC_WRITE;
+
+ ll_stats_ops_tally(ll_s2sbi(cl2ccc_dev(dev)->cdv_sb), opc, rc);
+}
+
extern ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
int rw, struct inode *inode,
struct ll_dio_pages *pv);
+static inline int ll_file_nolock(const struct file *file)
+{
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
+ struct inode *inode = file->f_dentry->d_inode;
+
+ LASSERT(fd != NULL);
+ return ((fd->fd_flags & LL_FILE_IGNORE_LOCK) ||
+ (ll_i2sbi(inode)->ll_flags & LL_SBI_NOLCK));
+}
+
+static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
+ struct lookup_intent *it, __u64 *bits)
+{
+ if (!it->d.lustre.it_lock_set) {
+ CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
+ inode, inode->i_ino, inode->i_generation);
+ md_set_lock_data(exp, &it->d.lustre.it_lock_handle,
+ inode, &it->d.lustre.it_lock_bits);
+ it->d.lustre.it_lock_set = 1;
+ }
+
+ if (bits != NULL)
+ *bits = it->d.lustre.it_lock_bits;
+}
+
+static inline void ll_lock_dcache(struct inode *inode)
+{
+#ifdef HAVE_DCACHE_LOCK
+ spin_lock(&dcache_lock);
+#else
+ spin_lock(&inode->i_lock);
+#endif
+}
+
+static inline void ll_unlock_dcache(struct inode *inode)
+{
+#ifdef HAVE_DCACHE_LOCK
+ spin_unlock(&dcache_lock);
+#else
+ spin_unlock(&inode->i_lock);
+#endif
+}
+
+static inline int d_lustre_invalid(const struct dentry *dentry)
+{
+ return dentry->d_flags & DCACHE_LUSTRE_INVALID;
+}
+
+static inline void __d_lustre_invalidate(struct dentry *dentry)
+{
+ dentry->d_flags |= DCACHE_LUSTRE_INVALID;
+}
+
+/*
+ * Mark dentry INVALID, if dentry refcount is zero (this is normally case for
+ * ll_md_blocking_ast), unhash this dentry, and let dcache to reclaim it later;
+ * else dput() of the last refcount will unhash this dentry and kill it.
+ */
+static inline void d_lustre_invalidate(struct dentry *dentry)
+{
+ CDEBUG(D_DENTRY, "invalidate dentry %.*s (%p) parent %p inode %p "
+ "refc %d\n", dentry->d_name.len, dentry->d_name.name, dentry,
+ dentry->d_parent, dentry->d_inode, d_refcount(dentry));
+
+ spin_lock(&dentry->d_lock);
+ __d_lustre_invalidate(dentry);
+ if (d_refcount(dentry) == 0)
+ __d_drop(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void d_lustre_revalidate(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ dentry->d_flags &= ~DCACHE_LUSTRE_INVALID;
+ spin_unlock(&dentry->d_lock);
+}
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0)
+/* Compatibility for old (1.8) compiled userspace quota code */
+struct if_quotactl_18 {
+ __u32 qc_cmd;
+ __u32 qc_type;
+ __u32 qc_id;
+ __u32 qc_stat;
+ struct obd_dqinfo qc_dqinfo;
+ struct obd_dqblk qc_dqblk;
+ char obd_type[16];
+ struct obd_uuid obd_uuid;
+};
+#define LL_IOC_QUOTACTL_18 _IOWR('f', 162, struct if_quotactl_18 *)
+/* End compatibility for old (1.8) compiled userspace quota code */
+#else
+#warning "remove old LL_IOC_QUOTACTL_18 compatibility code"
+#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0) */
+
+int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf);
+int ll_layout_refresh(struct inode *inode, __u32 *gen);
+
#endif /* LLITE_INTERNAL_H */