Whamcloud - gitweb
LU-5040 osd: fix osd declare credit for quota
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_internal.h
index b5c6114..af14812 100644 (file)
@@ -1,6 +1,4 @@
-/* -*- 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.
@@ -29,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2013, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 #ifndef _OSD_INTERNAL_H
 #define _OSD_INTERNAL_H
 
-#if defined(__KERNEL__)
 
+/* struct mutex */
+#include <linux/mutex.h>
 /* struct rw_semaphore */
 #include <linux/rwsem.h>
 /* struct dentry */
 #include <linux/dcache.h>
 /* struct dirent64 */
 #include <linux/dirent.h>
-
+#include <linux/statfs.h>
 #include <ldiskfs/ldiskfs.h>
 #include <ldiskfs/ldiskfs_jbd2.h>
-#ifdef HAVE_LDISKFS_JOURNAL_CALLBACK_ADD
-# define journal_callback ldiskfs_journal_cb_entry
-# define osd_journal_callback_set(handle, func, jcb) \
-         ldiskfs_journal_callback_add(handle, func, jcb)
-#else
-# define osd_journal_callback_set(handle, func, jcb) \
-         jbd2_journal_callback_set(handle, func, jcb)
-#endif
-
 
 /* LUSTRE_OSD_NAME */
 #include <obd.h>
 #include <obd_class.h>
 #include <lustre_disk.h>
 #include <dt_object.h>
+#include <lustre_quota.h>
 
 #include "osd_oi.h"
 #include "osd_iam.h"
+#include "osd_scrub.h"
+#include "osd_quota_fmt.h"
 
 struct inode;
 
-#define OSD_OII_NOGEN (0)
 #define OSD_COUNTERS (0)
 
+/* ldiskfs special inode::i_state_flags need to be accessed with
+ * ldiskfs_{set,clear,test}_inode_state() only */
+
+/* OI scrub should skip this inode. */
+#define LDISKFS_STATE_LUSTRE_NOSCRUB   31
+
 /** Enable thandle usage statistics */
 #define OSD_THANDLE_STATS (0)
 
-#ifdef HAVE_QUOTA_SUPPORT
-struct osd_ctxt {
-        __u32 oc_uid;
-        __u32 oc_gid;
-        cfs_kernel_cap_t oc_cap;
-};
-#endif
+#define MAX_OBJID_GROUP (FID_SEQ_ECHO + 1)
+
+#define OBJECTS        "OBJECTS"
+#define ADMIN_USR      "admin_quotafile_v2.usr"
+#define ADMIN_GRP      "admin_quotafile_v2.grp"
 
 struct osd_directory {
         struct iam_container od_container;
         struct iam_descr     od_descr;
 };
 
+/*
+ * Object Index (oi) instance.
+ */
+struct osd_oi {
+        /*
+         * underlying index object, where fid->id mapping in stored.
+         */
+        struct inode         *oi_inode;
+        struct osd_directory  oi_dir;
+};
+
+extern const int osd_dto_credits_noquota[];
+
 struct osd_object {
         struct dt_object        oo_dt;
         /**
@@ -111,11 +120,11 @@ struct osd_object {
          * to protect index ops.
          */
         struct htree_lock_head *oo_hl_head;
-        cfs_rw_semaphore_t      oo_ext_idx_sem;
-        cfs_rw_semaphore_t      oo_sem;
-        struct osd_directory   *oo_dir;
-        /** protects inode attributes. */
-        cfs_spinlock_t          oo_guard;
+       struct rw_semaphore     oo_ext_idx_sem;
+       struct rw_semaphore     oo_sem;
+       struct osd_directory    *oo_dir;
+       /** protects inode attributes. */
+       spinlock_t              oo_guard;
         /**
          * Following two members are used to indicate the presence of dot and
          * dotdot in the given directory. This is required for interop mode
@@ -130,56 +139,81 @@ struct osd_object {
 #endif
 };
 
-#ifdef HAVE_LDISKFS_PDO
-
-#define osd_ldiskfs_find_entry(dir, dentry, de, lock)   \
-        ll_ldiskfs_find_entry(dir, dentry, de, lock)
-#define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
-        ldiskfs_add_entry(handle, child, cinode, hlock)
+struct osd_obj_seq {
+       /* protects on-fly initialization */
+       int              oos_subdir_count; /* subdir count for each seq */
+       struct dentry    *oos_root;        /* O/<seq> */
+       struct dentry    **oos_dirs;       /* O/<seq>/d0-dXX */
+       obd_seq          oos_seq;          /* seq number */
+       struct list_head oos_seq_list;     /* list to seq_list */
+};
 
-#else /* HAVE_LDISKFS_PDO */
+struct osd_obj_map {
+       struct dentry    *om_root;        /* dentry for /O */
+       rwlock_t         om_seq_list_lock; /* lock for seq_list */
+       struct list_head om_seq_list;      /* list head for seq */
+       int              om_subdir_count;
+       struct mutex     om_dir_init_mutex;
+};
 
-struct htree_lock {
-        int     dummy;
+struct osd_mdobj {
+       struct dentry   *om_root;      /* AGENT/<index> */
+       obd_seq          om_index;     /* mdt index */
+       struct list_head om_list;      /* list to omm_list */
 };
 
-struct htree_lock_head {
-        int     dummy;
+struct osd_mdobj_map {
+       struct dentry   *omm_remote_parent;
 };
 
-#define ldiskfs_htree_lock(lock, head, inode, op)  do { LBUG(); } while (0)
-#define ldiskfs_htree_unlock(lock)                 do { LBUG(); } while (0)
+#define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
+        ldiskfs_add_entry(handle, child, cinode, hlock)
 
-static inline struct htree_lock_head *ldiskfs_htree_lock_head_alloc(int dep)
-{
-        LBUG();
-        return NULL;
-}
+#define OSD_OTABLE_IT_CACHE_SIZE       64
+#define OSD_OTABLE_IT_CACHE_MASK       (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
 
-#define ldiskfs_htree_lock_head_free(lh)           do { LBUG(); } while (0)
+struct osd_inconsistent_item {
+       /* link into osd_scrub::os_inconsistent_items,
+        * protected by osd_scrub::os_lock. */
+       struct list_head       oii_list;
 
-#define LDISKFS_DUMMY_HTREE_LOCK        0xbabecafe
+       /* The right FID <=> ino#/gen mapping. */
+       struct osd_idmap_cache oii_cache;
 
-static inline struct htree_lock *ldiskfs_htree_lock_alloc(void)
-{
-        return (struct htree_lock *)LDISKFS_DUMMY_HTREE_LOCK;
-}
+       unsigned int           oii_insert:1; /* insert or update mapping. */
+};
 
-static inline void ldiskfs_htree_lock_free(struct htree_lock *lk)
-{
-        LASSERT((unsigned long)lk == LDISKFS_DUMMY_HTREE_LOCK);
-}
+struct osd_otable_cache {
+       struct osd_idmap_cache ooc_cache[OSD_OTABLE_IT_CACHE_SIZE];
 
-#define HTREE_HBITS_DEF         0
+       /* Index for next cache slot to be filled. */
+       int                    ooc_producer_idx;
 
-#define osd_ldiskfs_find_entry(dir, dentry, de, lock)   \
-        ll_ldiskfs_find_entry(dir, dentry, de)
-#define osd_ldiskfs_add_entry(handle, child, cinode, lock) \
-        ldiskfs_add_entry(handle, child, cinode)
+       /* Index for next cache slot to be returned by it::next(). */
+       int                    ooc_consumer_idx;
 
-#endif /* HAVE_LDISKFS_PDO */
+       /* How many items in ooc_cache. */
+       int                    ooc_cached_items;
 
-extern const int osd_dto_credits_noquota[];
+       /* Position for up layer LFSCK iteration pre-loading. */
+       __u32                  ooc_pos_preload;
+};
+
+struct osd_otable_it {
+       struct osd_device       *ooi_dev;
+       struct osd_otable_cache  ooi_cache;
+
+       /* The following bits can be updated/checked w/o lock protection.
+        * If more bits will be introduced in the future and need lock to
+        * protect, please add comment. */
+       unsigned long            ooi_used_outside:1, /* Some user out of OSD
+                                                     * uses the iteration. */
+                                ooi_all_cached:1, /* No more entries can be
+                                                   * filled into cache. */
+                                ooi_user_ready:1, /* The user out of OSD is
+                                                   * ready to iterate. */
+                                ooi_waiting:1; /* it::next is waiting. */
+};
 
 /*
  * osd device.
@@ -188,61 +222,67 @@ struct osd_device {
         /* super-class */
         struct dt_device          od_dt_dev;
         /* information about underlying file system */
-        struct lustre_mount_info *od_mount;
-        /*
-         * XXX temporary stuff for object index: directory where every object
-         * is named by its fid.
-         */
-        struct dt_object         *od_obj_area;
+        struct vfsmount          *od_mnt;
         /* object index */
-        struct osd_oi            *od_oi_table;
+        struct osd_oi           **od_oi_table;
         /* total number of OI containers */
         int                       od_oi_count;
         /*
          * Fid Capability
          */
-        unsigned int              od_fl_capa:1;
+       unsigned int              od_fl_capa:1,
+                                 od_maybe_new:1,
+                                 od_noscrub:1,
+                                 od_dirent_journal:1,
+                                 od_igif_inoi:1,
+                                 od_check_ff:1,
+                                 od_is_ost:1,
+                                 od_lma_self_repair:1;
+
         unsigned long             od_capa_timeout;
         __u32                     od_capa_alg;
         struct lustre_capa_key   *od_capa_keys;
-        cfs_hlist_head_t         *od_capa_hash;
+       struct hlist_head        *od_capa_hash;
 
-        cfs_proc_dir_entry_t     *od_proc_entry;
+       struct proc_dir_entry    *od_proc_entry;
         struct lprocfs_stats     *od_stats;
-        /*
-         * statfs optimization: we cache a bit.
-         */
-        cfs_time_t                od_osfs_age;
-        cfs_kstatfs_t             od_kstatfs;
-        cfs_spinlock_t            od_osfs_lock;
 
-        /**
-         * The following flag indicates, if it is interop mode or not.
-         * It will be initialized, using mount param.
-         */
-        __u32                     od_iop_mode;
-};
+       spinlock_t                od_osfs_lock;
 
-#define OSD_TRACK_DECLARES
-#ifdef OSD_TRACK_DECLARES
-#define OSD_DECLARE_OP(oh, op)   {                               \
-        LASSERT(oh->ot_handle == NULL);                          \
-        ((oh)->ot_declare_ ##op)++; }
-#define OSD_EXEC_OP(handle, op)     {                            \
-        struct osd_thandle *oh;                                  \
-        oh = container_of0(handle, struct osd_thandle, ot_super);\
-        LASSERT((oh)->ot_declare_ ##op > 0);                     \
-        ((oh)->ot_declare_ ##op)--; }
-#else
-#define OSD_DECLARE_OP(oh, op)
-#define OSD_EXEC_OP(oh, op)
-#endif
+       int                       od_connects;
+       struct lu_site            od_site;
+
+       struct osd_obj_map      *od_ost_map;
+       struct osd_mdobj_map    *od_mdt_map;
+
+       unsigned long long      od_readcache_max_filesize;
+       int                     od_read_cache;
+       int                     od_writethrough_cache;
+
+       struct brw_stats        od_brw_stats;
+       atomic_t                od_r_in_flight;
+       atomic_t                od_w_in_flight;
+
+       struct mutex              od_otable_mutex;
+       struct osd_otable_it     *od_otable_it;
+       struct osd_scrub          od_scrub;
+       struct list_head                  od_ios_list;
+
+       /* service name associated with the osd device */
+       char                      od_svname[MAX_OBD_NAME];
+       char                      od_mntdev[MAX_OBD_NAME];
+
+       /* quota slave instance */
+       struct qsd_instance      *od_quota_slave;
+
+       /* osd seq instance */
+       struct lu_client_seq    *od_cl_seq;
+};
 
 /* There are at most 10 uid/gids are affected in a transaction, and
  * that's rename case:
  * - 2 for source parent uid & gid;
- * - 2 for source child uid & gid ('..' entry update when the child
- *   is directory);
+ * - 2 for source child uid & gid ('..' entry update when child is directory);
  * - 2 for target parent uid & gid;
  * - 2 for target child uid & gid (if the target child exists);
  * - 2 for root uid & gid (last_rcvd, llog, etc);
@@ -252,31 +292,34 @@ struct osd_device {
  */
 #define OSD_MAX_UGID_CNT        10
 
+enum {
+       OSD_OT_ATTR_SET         = 0,
+       OSD_OT_PUNCH            = 1,
+       OSD_OT_XATTR_SET        = 2,
+       OSD_OT_CREATE           = 3,
+       OSD_OT_DESTROY          = 4,
+       OSD_OT_REF_ADD          = 5,
+       OSD_OT_REF_DEL          = 6,
+       OSD_OT_WRITE            = 7,
+       OSD_OT_INSERT           = 8,
+       OSD_OT_DELETE           = 9,
+       OSD_OT_UPDATE           = 10,
+       OSD_OT_QUOTA            = 11,
+       OSD_OT_MAX              = 12
+};
+
 struct osd_thandle {
         struct thandle          ot_super;
         handle_t               *ot_handle;
-        struct journal_callback ot_jcb;
-        cfs_list_t              ot_dcb_list;
-        /* Link to the device, for debugging. */
-        struct lu_ref_link     *ot_dev_link;
+        struct ldiskfs_journal_cb_entry ot_jcb;
+       struct list_head              ot_dcb_list;
+       /* Link to the device, for debugging. */
+       struct lu_ref_link      ot_dev_link;
         unsigned short          ot_credits;
         unsigned short          ot_id_cnt;
         unsigned short          ot_id_type;
         uid_t                   ot_id_array[OSD_MAX_UGID_CNT];
-
-#ifdef OSD_TRACK_DECLARES
-        unsigned char           ot_declare_attr_set;
-        unsigned char           ot_declare_punch;
-        unsigned char           ot_declare_xattr_set;
-        unsigned char           ot_declare_create;
-        unsigned char           ot_declare_destroy;
-        unsigned char           ot_declare_ref_add;
-        unsigned char           ot_declare_ref_del;
-        unsigned char           ot_declare_write;
-        unsigned char           ot_declare_insert;
-        unsigned char           ot_declare_delete;
-#endif
-
+       struct lquota_trans    *ot_quota_trans;
 #if OSD_THANDLE_STATS
         /** time when this handle was allocated */
         cfs_time_t oth_alloced;
@@ -297,7 +340,6 @@ enum dt_txn_op {
         DTO_OBJECT_DELETE,
         DTO_ATTR_SET_BASE,
         DTO_XATTR_SET,
-        DTO_LOG_REC, /**< XXX temporary: dt layer knows nothing about llog. */
         DTO_WRITE_BASE,
         DTO_WRITE_BLOCK,
         DTO_ATTR_SET_CHOWN,
@@ -311,12 +353,20 @@ enum dt_txn_op {
 
 #ifdef LPROCFS
 enum {
+        LPROC_OSD_READ_BYTES    = 0,
+        LPROC_OSD_WRITE_BYTES   = 1,
+        LPROC_OSD_GET_PAGE      = 2,
+        LPROC_OSD_NO_PAGE       = 3,
+        LPROC_OSD_CACHE_ACCESS  = 4,
+        LPROC_OSD_CACHE_HIT     = 5,
+        LPROC_OSD_CACHE_MISS    = 6,
+
 #if OSD_THANDLE_STATS
         LPROC_OSD_THANDLE_STARTING,
         LPROC_OSD_THANDLE_OPEN,
         LPROC_OSD_THANDLE_CLOSING,
 #endif
-        LPROC_OSD_NR
+        LPROC_OSD_LAST,
 };
 #endif
 
@@ -346,7 +396,7 @@ struct osd_it_ea_dirent {
  * there  would be one ext3 readdir for every mdd readdir page.
  */
 
-#define OSD_IT_EA_BUFSIZE       (CFS_PAGE_SIZE + CFS_PAGE_SIZE/4)
+#define OSD_IT_EA_BUFSIZE       (PAGE_CACHE_SIZE + PAGE_CACHE_SIZE/4)
 
 /**
  * This is iterator's in-memory data structure in interoperability
@@ -375,6 +425,50 @@ struct osd_it_iam {
         struct iam_iterator    oi_it;
 };
 
+struct osd_quota_leaf {
+       struct list_head        oql_link;
+       uint            oql_blk;
+};
+
+/**
+ * Iterator's in-memory data structure for quota file.
+ */
+struct osd_it_quota {
+       struct osd_object       *oiq_obj;
+       /** tree blocks path to where the entry is stored */
+       uint                     oiq_blk[LUSTRE_DQTREEDEPTH + 1];
+       /** on-disk offset for current key where quota record can be found */
+       loff_t                   oiq_offset;
+       /** identifier for current quota record */
+       __u64                    oiq_id;
+       /** the record index in the leaf/index block */
+       uint                     oiq_index[LUSTRE_DQTREEDEPTH + 1];
+       /** list of already processed leaf blocks */
+       struct list_head         oiq_list;
+};
+
+#define MAX_BLOCKS_PER_PAGE (PAGE_CACHE_SIZE / 512)
+
+struct osd_iobuf {
+       wait_queue_head_t  dr_wait;
+       atomic_t       dr_numreqs;  /* number of reqs being processed */
+       int                dr_max_pages;
+       int                dr_npages;
+       int                dr_error;
+       int                dr_frags;
+       unsigned int       dr_ignore_quota:1;
+       unsigned int       dr_elapsed_valid:1; /* we really did count time */
+       unsigned int       dr_rw:1;
+       struct lu_buf      dr_pg_buf;
+       struct page      **dr_pages;
+       struct lu_buf      dr_bl_buf;
+       unsigned long     *dr_blocks;
+       unsigned long      dr_start_time;
+       unsigned long      dr_elapsed;  /* how long io took */
+       struct osd_device *dr_dev;
+       unsigned int       dr_init_at;  /* the line iobuf was initialized */
+};
+
 struct osd_thread_info {
         const struct lu_env   *oti_env;
         /**
@@ -388,7 +482,13 @@ struct osd_thread_info {
         struct htree_lock     *oti_hlock;
 
         struct lu_fid          oti_fid;
-        struct osd_inode_id    oti_id;
+       struct lu_fid          oti_fid2;
+       struct lu_fid          oti_fid3;
+       struct osd_inode_id    oti_id;
+       struct osd_inode_id    oti_id2;
+       struct osd_inode_id    oti_id3;
+        struct ost_id          oti_ostid;
+
         /*
          * XXX temporary: for ->i_op calls.
          */
@@ -415,14 +515,18 @@ struct osd_thread_info {
 
         /** osd iterator context used for iterator session */
 
-        union {
-                struct osd_it_iam      oti_it;
-                /** ldiskfs iterator data structure, see osd_it_ea_{init, fini} */
-                struct osd_it_ea       oti_it_ea;
-        };
+       union {
+               struct osd_it_iam       oti_it;
+               /* ldiskfs iterator data structure,
+                * see osd_it_ea_{init, fini} */
+               struct osd_it_ea        oti_it_ea;
+               struct osd_it_quota     oti_it_quota;
+       };
+
+       /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
+       void                    *oti_it_ea_buf;
 
-        /** pre-allocated buffer used by oti_it_ea, size OSD_IT_EA_BUFSIZE */
-        void                  *oti_it_ea_buf;
+       struct kstatfs          oti_ksfs;
 
         /** IAM iterator for index operation. */
         struct iam_iterator    oti_idx_it;
@@ -438,38 +542,213 @@ struct osd_thread_info {
                 long long      oti_alignment_lieutenant_colonel;
         };
 
+       struct osd_idmap_cache oti_cache;
 
         int                    oti_r_locks;
         int                    oti_w_locks;
         int                    oti_txns;
         /** used in osd_fid_set() to put xattr */
         struct lu_buf          oti_buf;
+       struct lu_buf          oti_big_buf;
         /** used in osd_ea_fid_set() to set fid into common ea */
-        struct lustre_mdt_attrs oti_mdt_attrs;
-#ifdef HAVE_QUOTA_SUPPORT
-        struct osd_ctxt        oti_ctxt;
-#endif
-        struct lu_env          oti_obj_delete_tx_env;
+       union {
+               struct lustre_mdt_attrs oti_mdt_attrs;
+               /* old LMA for compatibility */
+               char                    oti_mdt_attrs_old[LMA_OLD_SIZE];
+       };
+       /** 0-copy IO */
+       struct osd_iobuf       oti_iobuf;
+       struct inode           oti_inode;
 #define OSD_FID_REC_SZ 32
-        char                   oti_ldp[OSD_FID_REC_SZ];
-        char                   oti_ldp2[OSD_FID_REC_SZ];
+       char                   oti_ldp[OSD_FID_REC_SZ];
+       char                   oti_ldp2[OSD_FID_REC_SZ];
+
+       /* used by quota code */
+       union {
+#ifdef HAVE_DQUOT_FS_DISK_QUOTA
+               struct fs_disk_quota    oti_fdq;
+#else
+               struct if_dqblk         oti_dqblk;
+#endif
+               struct if_dqinfo        oti_dqinfo;
+       };
+       struct lquota_id_info   oti_qi;
+       struct lquota_trans     oti_quota_trans;
+       union lquota_rec        oti_quota_rec;
+       __u64                   oti_quota_id;
+       struct lu_seq_range     oti_seq_range;
+
+       /* Tracking for transaction credits, to allow debugging and optimizing
+        * cases where a large number of credits are being allocated for
+        * single transaction. */
+       unsigned short          oti_declare_ops[OSD_OT_MAX];
+       unsigned short          oti_declare_ops_rb[OSD_OT_MAX];
+       unsigned short          oti_declare_ops_cred[OSD_OT_MAX];
+       bool                    oti_rollback;
+
+       char                    oti_name[48];
+       union {
+               struct filter_fid_old   oti_ff;
+               struct filter_fid       oti_ff_new;
+       };
 };
 
 extern int ldiskfs_pdo;
 
+static inline int __osd_xattr_get(struct inode *inode, struct dentry *dentry,
+                                 const char *name, void *buf, int len)
+{
+       if (inode == NULL)
+               return -EINVAL;
+
+       dentry->d_inode = inode;
+       dentry->d_sb = inode->i_sb;
+       return inode->i_op->getxattr(dentry, name, buf, len);
+}
+
+static inline int __osd_xattr_set(struct osd_thread_info *info,
+                                 struct inode *inode, const char *name,
+                                 const void *buf, int buflen, int fl)
+{
+       struct dentry *dentry = &info->oti_child_dentry;
+
+       ll_vfs_dq_init(inode);
+       dentry->d_inode = inode;
+       dentry->d_sb = inode->i_sb;
+       return inode->i_op->setxattr(dentry, name, buf, buflen, fl);
+}
+
 #ifdef LPROCFS
 /* osd_lproc.c */
-void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
+extern struct lprocfs_seq_vars lprocfs_osd_obd_vars[];
+extern struct lprocfs_seq_vars lprocfs_osd_module_vars[];
 int osd_procfs_init(struct osd_device *osd, const char *name);
 int osd_procfs_fini(struct osd_device *osd);
-void osd_lprocfs_time_start(const struct lu_env *env);
-void osd_lprocfs_time_end(const struct lu_env *env,
-                          struct osd_device *osd, int op);
+void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf);
+
 #endif
 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
-               cfs_kstatfs_t *sfs);
+               struct obd_statfs *sfs);
 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
                     struct lustre_capa *capa, __u64 opc);
+struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
+                      struct osd_inode_id *id);
+int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
+                  const struct lu_fid *fid, __u32 compat, __u32 incompat);
+int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
+               struct dentry *dentry, struct lustre_mdt_attrs *lma);
+int osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
+                    struct osd_inode_id *id, const struct lu_fid *fid);
+int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
+                struct dentry *dentry, struct lu_fid *fid);
+
+int osd_obj_map_init(const struct lu_env *env, struct osd_device *osd);
+void osd_obj_map_fini(struct osd_device *dev);
+int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, struct osd_inode_id *id);
+int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
+                      const struct lu_fid *fid, const struct osd_inode_id *id,
+                      handle_t *th);
+int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, handle_t *th);
+int osd_obj_map_update(struct osd_thread_info *info, struct osd_device *osd,
+                      const struct lu_fid *fid, const struct osd_inode_id *id,
+                      handle_t *th);
+int osd_obj_map_recover(struct osd_thread_info *info, struct osd_device *osd,
+                       struct inode *src_parent, struct dentry *src_child,
+                       const struct lu_fid *fid);
+int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, struct osd_inode_id *id);
+int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, const struct osd_inode_id *id,
+                       handle_t *th);
+int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, const struct osd_inode_id *id,
+                       handle_t *th);
+
+void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
+int osd_scrub_file_store(struct osd_scrub *scrub);
+char *osd_lf_fid2name(const struct lu_fid *fid);
+int osd_scrub_start(struct osd_device *dev);
+int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev);
+void osd_scrub_cleanup(const struct lu_env *env, struct osd_device *dev);
+int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
+                  int insert);
+int osd_oii_lookup(struct osd_device *dev, const struct lu_fid *fid,
+                  struct osd_inode_id *id);
+int osd_scrub_dump(struct seq_file *m, struct osd_device *dev);
+
+int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
+                  obd_seq seq, struct lu_seq_range *range);
+
+int osd_delete_from_remote_parent(const struct lu_env *env,
+                                 struct osd_device *osd,
+                                 struct osd_object *obj,
+                                 struct osd_thandle *oh);
+int osd_add_to_remote_parent(const struct lu_env *env, struct osd_device *osd,
+                            struct osd_object *obj, struct osd_thandle *oh);
+int osd_lookup_in_remote_parent(struct osd_thread_info *oti,
+                               struct osd_device *osd,
+                               const struct lu_fid *fid,
+                               struct osd_inode_id *id);
+
+int osd_ost_seq_exists(struct osd_thread_info *info, struct osd_device *osd,
+                      __u64 seq);
+/* osd_quota_fmt.c */
+int walk_tree_dqentry(const struct lu_env *env, struct osd_object *obj,
+                      int type, uint blk, int depth, uint index,
+                      struct osd_it_quota *it);
+int walk_block_dqentry(const struct lu_env *env, struct osd_object *obj,
+                       int type, uint blk, uint index,
+                       struct osd_it_quota *it);
+loff_t find_tree_dqentry(const struct lu_env *env,
+                         struct osd_object *obj, int type,
+                         qid_t dqid, uint blk, int depth,
+                         struct osd_it_quota *it);
+/* osd_quota.c */
+int osd_declare_qid(const struct lu_env *env, struct osd_thandle *oh,
+                   struct lquota_id_info *qi, struct osd_object *obj,
+                   bool enforce, int *flags);
+int osd_declare_inode_qid(const struct lu_env *env, qid_t uid, qid_t gid,
+                         long long space, struct osd_thandle *oh,
+                         struct osd_object *obj, bool is_blk, int *flags,
+                         bool force);
+const struct dt_rec *osd_quota_pack(struct osd_object *obj,
+                                   const struct dt_rec *rec,
+                                   union lquota_rec *quota_rec);
+void osd_quota_unpack(struct osd_object *obj, const struct dt_rec *rec);
+int osd_quota_migration(const struct lu_env *env, struct dt_object *dt,
+                       const struct dt_index_features *feat);
+
+static inline bool is_quota_glb_feat(const struct dt_index_features *feat)
+{
+       return (feat == &dt_quota_iusr_features ||
+               feat == &dt_quota_busr_features ||
+               feat == &dt_quota_igrp_features ||
+               feat == &dt_quota_bgrp_features) ? true : false;
+}
+
+#ifndef HAVE_I_UID_READ
+static inline uid_t i_uid_read(const struct inode *inode)
+{
+       return inode->i_uid;
+}
+
+static inline gid_t i_gid_read(const struct inode *inode)
+{
+       return inode->i_gid;
+}
+
+static inline void i_uid_write(struct inode *inode, uid_t uid)
+{
+       inode->i_uid = uid;
+}
+
+static inline void i_gid_write(struct inode *inode, gid_t gid)
+{
+       inode->i_gid = gid;
+}
+#endif
 
 /*
  * Invariants, assertions.
@@ -497,37 +776,28 @@ static inline int osd_invariant(const struct osd_object *obj)
 #define osd_invariant(obj) (1)
 #endif
 
-/* The on-disk extN format reserves inodes 0-11 for internal filesystem
- * use, and these inodes will be invisible on client side, so the valid
- * sequence for IGIF fid is 12-0xffffffff. But root inode (2#) will be seen
- * on server side (osd), and it should be valid too here.
- */
-#define OSD_ROOT_SEQ            2
-static inline int osd_fid_is_root(const struct lu_fid *fid)
-{
-        return fid_seq(fid) == OSD_ROOT_SEQ;
-}
+#define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
+
+extern const struct dt_index_operations osd_otable_ops;
 
-static inline int osd_fid_is_igif(const struct lu_fid *fid)
+static inline int osd_oi_fid2idx(struct osd_device *dev,
+                                const struct lu_fid *fid)
 {
-        return fid_is_igif(fid) || osd_fid_is_root(fid);
+       return fid->f_seq & (dev->od_oi_count - 1);
 }
 
-static inline struct osd_oi *
-osd_fid2oi(struct osd_device *osd, const struct lu_fid *fid)
+static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
+                                        const struct lu_fid *fid)
 {
-        if (!fid_is_norm(fid))
-                return NULL;
-
-        LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
-        /* It can work even od_oi_count equals to 1 although it's unexpected,
-         * the only reason we set it to 1 is for performance measurement */
-        return &osd->od_oi_table[fid->f_seq & (osd->od_oi_count - 1)];
+       LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
+       LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
+       LASSERTF(osd->od_oi_table != NULL && osd->od_oi_count >= 1,
+                DFID"\n", PFID(fid));
+       /* It can work even od_oi_count equals to 1 although it's unexpected,
+        * the only reason we set it to 1 is for performance measurement */
+       return osd->od_oi_table[osd_oi_fid2idx(osd, fid)];
 }
 
-/*
- * Helpers.
- */
 extern const struct lu_device_operations  osd_lu_ops;
 
 static inline int lu_device_is_osd(const struct lu_device *d)
@@ -554,7 +824,7 @@ static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
 
 static inline struct super_block *osd_sb(const struct osd_device *dev)
 {
-        return dev->od_mount->lmi_mnt->mnt_sb;
+       return dev->od_mnt->mnt_sb;
 }
 
 static inline int osd_object_is_root(const struct osd_object *obj)
@@ -583,6 +853,16 @@ static inline journal_t *osd_journal(const struct osd_device *dev)
         return LDISKFS_SB(osd_sb(dev))->s_journal;
 }
 
+static inline struct seq_server_site *osd_seq_site(struct osd_device *osd)
+{
+       return osd->od_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
+}
+
+static inline char *osd_name(struct osd_device *osd)
+{
+       return osd->od_dt_dev.dd_lu_dev.ld_obd->obd_name;
+}
+
 extern const struct dt_body_operations osd_body_ops;
 extern struct lu_context_key osd_key;
 
@@ -591,5 +871,252 @@ static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
         return lu_context_key_get(&env->le_ctx, &osd_key);
 }
 
-#endif /* __KERNEL__ */
+extern const struct dt_body_operations osd_body_ops_new;
+
+/**
+ * IAM Iterator
+ */
+static inline
+struct iam_path_descr *osd_it_ipd_get(const struct lu_env *env,
+                                      const struct iam_container *bag)
+{
+        return bag->ic_descr->id_ops->id_ipd_alloc(bag,
+                                           osd_oti_get(env)->oti_it_ipd);
+}
+
+static inline
+struct iam_path_descr *osd_idx_ipd_get(const struct lu_env *env,
+                                       const struct iam_container *bag)
+{
+        return bag->ic_descr->id_ops->id_ipd_alloc(bag,
+                                           osd_oti_get(env)->oti_idx_ipd);
+}
+
+static inline void osd_ipd_put(const struct lu_env *env,
+                               const struct iam_container *bag,
+                               struct iam_path_descr *ipd)
+{
+        bag->ic_descr->id_ops->id_ipd_free(ipd);
+}
+
+int osd_ldiskfs_read(struct inode *inode, void *buf, int size, loff_t *offs);
+int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
+                            int write_NUL, loff_t *offs, handle_t *handle);
+
+static inline
+struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
+                                         struct inode *inode,
+                                         const char *name, const int namelen)
+{
+        struct osd_thread_info *info = osd_oti_get(env);
+        struct dentry *child_dentry = &info->oti_child_dentry;
+        struct dentry *obj_dentry = &info->oti_obj_dentry;
+
+        obj_dentry->d_inode = inode;
+        obj_dentry->d_sb = inode->i_sb;
+        obj_dentry->d_name.hash = 0;
+
+        child_dentry->d_name.hash = 0;
+        child_dentry->d_parent = obj_dentry;
+        child_dentry->d_name.name = name;
+        child_dentry->d_name.len = namelen;
+        return child_dentry;
+}
+
+extern int osd_trans_declare_op2rb[];
+extern int ldiskfs_track_declares_assert;
+
+static inline void osd_trans_declare_op(const struct lu_env *env,
+                                       struct osd_thandle *oh,
+                                       unsigned int op, int credits)
+{
+       struct osd_thread_info *oti = osd_oti_get(env);
+
+       LASSERT(oh->ot_handle == NULL);
+       if (unlikely(op >= OSD_OT_MAX)) {
+               if (unlikely(ldiskfs_track_declares_assert)) {
+                       LASSERT(op < OSD_OT_MAX);
+               } else {
+                       CWARN("%s: Invalid operation index %d\n",
+                             osd_name(oti->oti_dev), op);
+                       libcfs_debug_dumpstack(NULL);
+               }
+       } else {
+               oti->oti_declare_ops[op]++;
+               oti->oti_declare_ops_cred[op] += credits;
+       }
+       oh->ot_credits += credits;
+}
+
+static inline void osd_trans_exec_op(const struct lu_env *env,
+                                    struct thandle *th, unsigned int op)
+{
+       struct osd_thread_info *oti = osd_oti_get(env);
+       struct osd_thandle     *oh  = container_of(th, struct osd_thandle,
+                                                  ot_super);
+       unsigned int            rb;
+
+       LASSERT(oh->ot_handle != NULL);
+       if (unlikely(op >= OSD_OT_MAX)) {
+               if (unlikely(ldiskfs_track_declares_assert))
+                       LASSERT(op < OSD_OT_MAX);
+               else {
+                       CWARN("%s: Invalid operation index %d\n",
+                             osd_name(oti->oti_dev), op);
+                       libcfs_debug_dumpstack(NULL);
+                       return;
+               }
+       }
+
+       if (likely(!oti->oti_rollback && oti->oti_declare_ops[op] > 0)) {
+               oti->oti_declare_ops[op]--;
+               oti->oti_declare_ops_rb[op]++;
+       } else {
+               /* all future updates are considered rollback */
+               oti->oti_rollback = true;
+               rb = osd_trans_declare_op2rb[op];
+               if (unlikely(rb >= OSD_OT_MAX)) {
+                       if (unlikely(ldiskfs_track_declares_assert))
+                               LASSERTF(rb < OSD_OT_MAX, "rb = %u\n", rb);
+                       else {
+                               CWARN("%s: Invalid rollback index %d\n",
+                                     osd_name(oti->oti_dev), rb);
+                               libcfs_debug_dumpstack(NULL);
+                               return;
+                       }
+               }
+               if (unlikely(oti->oti_declare_ops_rb[rb] == 0)) {
+                       if (unlikely(ldiskfs_track_declares_assert))
+                               LASSERTF(oti->oti_declare_ops_rb[rb] > 0,
+                                        "rb = %u\n", rb);
+                       else {
+                               CWARN("%s: Overflow in tracking declares for "
+                                     "index, rb = %d\n",
+                                     osd_name(oti->oti_dev), rb);
+                               libcfs_debug_dumpstack(NULL);
+                               return;
+                       }
+               }
+               oti->oti_declare_ops_rb[rb]--;
+       }
+}
+
+static inline void osd_trans_declare_rb(const struct lu_env *env,
+                                       struct thandle *th, unsigned int op)
+{
+       struct osd_thread_info *oti = osd_oti_get(env);
+       struct osd_thandle     *oh  = container_of(th, struct osd_thandle,
+                                                  ot_super);
+
+       LASSERT(oh->ot_handle != NULL);
+       if (unlikely(op >= OSD_OT_MAX)) {
+               if (unlikely(ldiskfs_track_declares_assert))
+                       LASSERT(op < OSD_OT_MAX);
+               else {
+                       CWARN("%s: Invalid operation index %d\n",
+                             osd_name(oti->oti_dev), op);
+                       libcfs_debug_dumpstack(NULL);
+               }
+
+       } else {
+               oti->oti_declare_ops_rb[op]++;
+       }
+}
+
+/**
+ * Helper function to pack the fid, ldiskfs stores fid in packed format.
+ */
+static inline
+void osd_fid_pack(struct osd_fid_pack *pack, const struct dt_rec *fid,
+                  struct lu_fid *befider)
+{
+        fid_cpu_to_be(befider, (struct lu_fid *)fid);
+        memcpy(pack->fp_area, befider, sizeof(*befider));
+        pack->fp_len =  sizeof(*befider) + 1;
+}
+
+static inline
+int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
+{
+        int result;
+
+        result = 0;
+        switch (pack->fp_len) {
+        case sizeof *fid + 1:
+                memcpy(fid, pack->fp_area, sizeof *fid);
+                fid_be_to_cpu(fid, fid);
+                break;
+        default:
+                CERROR("Unexpected packed fid size: %d\n", pack->fp_len);
+                result = -EIO;
+        }
+        return result;
+}
+
+/**
+ * Quota/Accounting handling
+ */
+extern const struct dt_index_operations osd_acct_index_ops;
+int osd_acct_obj_lookup(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, struct osd_inode_id *id);
+
+/* copy from fs/ext4/dir.c */
+static inline int is_32bit_api(void)
+{
+#ifdef CONFIG_COMPAT
+       return is_compat_task();
+#else
+       return (BITS_PER_LONG == 32);
+#endif
+}
+
+static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
+{
+       if ((filp->f_mode & FMODE_32BITHASH) ||
+           (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
+               return LDISKFS_HTREE_EOF_32BIT;
+       else
+               return LDISKFS_HTREE_EOF_64BIT;
+}
+
+static inline int fid_is_internal(const struct lu_fid *fid)
+{
+       return (!fid_is_namespace_visible(fid) && !fid_is_idif(fid));
+}
+
+static inline unsigned long osd_remote_parent_ino(struct osd_device *dev)
+{
+       return dev->od_mdt_map->omm_remote_parent->d_inode->i_ino;
+}
+
+#ifdef JOURNAL_START_HAS_3ARGS
+# define osd_journal_start_sb(sb, type, nblock) \
+               ldiskfs_journal_start_sb(sb, type, nblock)
+# define osd_ldiskfs_append(handle, inode, nblock, err) \
+               ldiskfs_append(handle, inode, nblock)
+# define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
+               ldiskfs_find_entry(dir, name, de, inlined, lock)
+# define osd_journal_start(inode, type, nblocks) \
+               ldiskfs_journal_start(inode, type, nblocks)
+# define osd_transaction_size(dev) \
+               (osd_journal(dev)->j_max_transaction_buffers / 2)
+#else
+# define LDISKFS_HT_MISC       0
+# define osd_journal_start_sb(sb, type, nblock) \
+               ldiskfs_journal_start_sb(sb, nblock)
+# define osd_ldiskfs_append(handle, inode, nblock, err) \
+               ldiskfs_append(handle, inode, nblock, err)
+# define osd_ldiskfs_find_entry(dir, name, de, inlined, lock) \
+               ldiskfs_find_entry(dir, name, de, lock)
+# define osd_journal_start(inode, type, nblocks) \
+               ldiskfs_journal_start(inode, nblocks)
+# define osd_transaction_size(dev) \
+               (osd_journal(dev)->j_max_transaction_buffers)
+#endif
+
+void ldiskfs_inc_count(handle_t *handle, struct inode *inode);
+void ldiskfs_dec_count(handle_t *handle, struct inode *inode);
+
+void osd_fini_iobuf(struct osd_device *d, struct osd_iobuf *iobuf);
+
 #endif /* _OSD_INTERNAL_H */