Whamcloud - gitweb
LU-1866 osd: ancillary work for initial OI scrub
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_internal.h
index 307ecfa..f28af74 100644 (file)
@@ -27,7 +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, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 #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_COUNTERS (0)
 
-/* Lustre special inode::i_state to indicate OI scrub skip this inode. */
-#define I_LUSTRE_NOSCRUB       (1 << 31)
+/* 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
+
+/* Do not add OI mapping for this inode. */
+#define LDISKFS_STATE_LUSTRE_NO_OI     30
 
 /** 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;
@@ -127,11 +133,11 @@ 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
@@ -146,54 +152,27 @@ 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)
-
-#else /* HAVE_LDISKFS_PDO */
-
-struct htree_lock {
-        int     dummy;
+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 */
+       cfs_list_t       oos_seq_list;     /* list to seq_list */
 };
 
-struct htree_lock_head {
-        int     dummy;
+struct osd_obj_map {
+       struct dentry    *om_root;        /* dentry for /O */
+       rwlock_t         om_seq_list_lock; /* lock for seq_list */
+       cfs_list_t       om_seq_list;      /* list head for seq */
+       int              om_subdir_count;
+       struct semaphore om_dir_init_sem;
 };
 
-#define ldiskfs_htree_lock(lock, head, inode, op)  do { LBUG(); } while (0)
-#define ldiskfs_htree_unlock(lock)                 do { LBUG(); } while (0)
-
-static inline struct htree_lock_head *ldiskfs_htree_lock_head_alloc(int dep)
-{
-        LBUG();
-        return NULL;
-}
-
-#define ldiskfs_htree_lock_head_free(lh)           do { LBUG(); } while (0)
-
-#define LDISKFS_DUMMY_HTREE_LOCK        0xbabecafe
-
-static inline struct htree_lock *ldiskfs_htree_lock_alloc(void)
-{
-        return (struct htree_lock *)LDISKFS_DUMMY_HTREE_LOCK;
-}
-
-static inline void ldiskfs_htree_lock_free(struct htree_lock *lk)
-{
-        LASSERT((unsigned long)lk == LDISKFS_DUMMY_HTREE_LOCK);
-}
-
-#define HTREE_HBITS_DEF         0
-
 #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)
-
-#endif /* HAVE_LDISKFS_PDO */
+        ll_ldiskfs_find_entry(dir, dentry, de, lock)
+#define osd_ldiskfs_add_entry(handle, child, cinode, hlock) \
+        ldiskfs_add_entry(handle, child, cinode, hlock)
 
 #define OSD_OTABLE_IT_CACHE_SIZE       128
 #define OSD_OTABLE_IT_CACHE_MASK       (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
@@ -253,7 +232,6 @@ struct osd_device {
         /* super-class */
         struct dt_device          od_dt_dev;
         /* information about underlying file system */
-        struct lustre_mount_info *od_mount;
         struct vfsmount          *od_mnt;
         /* object index */
         struct osd_oi           **od_oi_table;
@@ -262,7 +240,8 @@ struct osd_device {
         /*
          * Fid Capability
          */
-        unsigned int              od_fl_capa:1;
+       unsigned int              od_fl_capa:1,
+                                 od_is_md:1; /* set in ->ldo_prepare */
         unsigned long             od_capa_timeout;
         __u32                     od_capa_alg;
         struct lustre_capa_key   *od_capa_keys;
@@ -275,20 +254,16 @@ struct osd_device {
          */
         cfs_time_t                od_osfs_age;
         struct obd_statfs         od_statfs;
-        cfs_spinlock_t            od_osfs_lock;
+       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;
+       unsigned int              od_noscrub:1,
+                                 od_handle_nolma:1;
 
-        struct fsfilt_operations *od_fsops;
+       struct fsfilt_operations *od_fsops;
+       int                       od_connects;
+       struct lu_site            od_site;
 
-        /*
-         * mapping for legacy OST objids
-         */
-        struct osd_compat_objid  *od_ost_map;
+       struct osd_obj_map      *od_ost_map;
 
         unsigned long long        od_readcache_max_filesize;
         int                       od_read_cache;
@@ -298,33 +273,22 @@ struct osd_device {
         cfs_atomic_t              od_r_in_flight;
         cfs_atomic_t              od_w_in_flight;
 
-       cfs_mutex_t               od_otable_mutex;
+       struct mutex              od_otable_mutex;
        struct osd_otable_it     *od_otable_it;
        struct osd_scrub          od_scrub;
-};
 
-#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);\
-        if (((oh)->ot_declare_ ##op) > 0) {                      \
-                ((oh)->ot_declare_ ##op)--;                      \
-        }                                                        \
-        }
-#else
-#define OSD_DECLARE_OP(oh, op)
-#define OSD_EXEC_OP(oh, op)
-#endif
+       /* 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;
+};
 
 /* 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);
@@ -334,6 +298,23 @@ 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_QUOTA            = 10,
+       OSD_OT_MAX              = 11
+};
+
+#define OSD_TRACK_DECLARES
+
 struct osd_thandle {
         struct thandle          ot_super;
         handle_t               *ot_handle;
@@ -345,20 +326,7 @@ struct osd_thandle {
         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;
@@ -465,6 +433,28 @@ struct osd_it_iam {
         struct iam_iterator    oi_it;
 };
 
+struct osd_quota_leaf {
+       cfs_list_t      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 */
+       cfs_list_t               oiq_list;
+};
+
 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
 
 struct osd_iobuf {
@@ -482,6 +472,7 @@ struct osd_iobuf {
         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 {
@@ -528,11 +519,13 @@ 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;
@@ -553,6 +546,7 @@ struct osd_thread_info {
                 long long      oti_alignment_lieutenant_colonel;
         };
 
+       struct osd_idmap_cache oti_cache;
 
         int                    oti_r_locks;
         int                    oti_w_locks;
@@ -560,18 +554,41 @@ struct osd_thread_info {
         /** used in osd_fid_set() to put xattr */
         struct lu_buf          oti_buf;
         /** used in osd_ea_fid_set() to set fid into common ea */
-        struct lustre_mdt_attrs oti_mdt_attrs;
+       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;
         int                    oti_created[PTLRPC_MAX_BRW_PAGES];
-#ifdef HAVE_QUOTA_SUPPORT
-        struct osd_ctxt        oti_ctxt;
-#endif
         struct lu_env          oti_obj_delete_tx_env;
 #define OSD_FID_REC_SZ 32
         char                   oti_ldp[OSD_FID_REC_SZ];
         char                   oti_ldp2[OSD_FID_REC_SZ];
+
+       /* used by quota code */
+       union {
+               struct if_dqblk         oti_dqblk;
+               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;
+
+#ifdef OSD_TRACK_DECLARES
+       /* Tracking for transaction credits, to allow debugging and optimizing
+        * cases where a large number of credits are being allocated for
+        * single transaction. */
+       unsigned char           oti_declare_ops[OSD_OT_MAX];
+       unsigned char           oti_declare_ops_rb[OSD_OT_MAX];
+       unsigned short          oti_declare_ops_cred[OSD_OT_MAX];
+       bool                    oti_rollback;
+#endif
+
 };
 
 extern int ldiskfs_pdo;
@@ -581,9 +598,6 @@ extern int ldiskfs_pdo;
 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
 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
@@ -591,38 +605,70 @@ int osd_statfs(const struct lu_env *env, struct dt_device *dev,
                struct obd_statfs *sfs);
 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
                     struct lustre_capa *capa, __u64 opc);
-void osd_declare_qid(struct dt_object *dt, struct osd_thandle *oh,
-                     int type, uid_t id, struct inode *inode);
 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
                       struct osd_inode_id *id);
-struct inode *osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
-                          struct osd_inode_id *id, struct lu_fid *fid);
-
-int osd_compat_init(struct osd_device *dev);
-void osd_compat_fini(struct osd_device *dev);
-int osd_compat_objid_lookup(struct osd_thread_info *info,
-                            struct osd_device *osd,
-                            const struct lu_fid *fid, struct osd_inode_id *id);
-int osd_compat_objid_insert(struct osd_thread_info *info,
-                            struct osd_device *osd,
-                            const struct lu_fid *fid,
-                            const struct osd_inode_id *id, struct thandle *th);
-int osd_compat_objid_delete(struct osd_thread_info *info,
-                            struct osd_device *osd,
-                            const struct lu_fid *fid, struct thandle *th);
-int osd_compat_spec_lookup(struct osd_thread_info *info,
-                           struct osd_device *osd,
-                           const struct lu_fid *fid, struct osd_inode_id *id);
-int osd_compat_spec_insert(struct osd_thread_info *info,
-                           struct osd_device *osd,
-                           const struct lu_fid *fid,
-                           const struct osd_inode_id *id, struct thandle *th);
+int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
+               struct dentry *dentry, struct lustre_mdt_attrs *lma);
+
+int osd_obj_map_init(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,
+                      struct thandle *th);
+int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
+                       const struct lu_fid *fid, struct thandle *th);
+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,
+                       struct thandle *th);
 
 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
 int osd_scrub_file_store(struct osd_scrub *scrub);
 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 osd_device *dev, char *buf, int len);
+
+int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
+                  const struct lu_fid *fid, struct lu_seq_range *range);
+/* 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, bool allocated, 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,
+                         bool is_blk, bool allocated, 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;
+}
 
 /*
  * Invariants, assertions.
@@ -650,6 +696,8 @@ static inline int osd_invariant(const struct osd_object *obj)
 #define osd_invariant(obj) (1)
 #endif
 
+#define OSD_MAX_CACHE_SIZE OBD_OBJECT_EOF
+
 extern const struct dt_index_operations osd_otable_ops;
 
 static inline int osd_oi_fid2idx(struct osd_device *dev,
@@ -662,7 +710,7 @@ static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
                                         const struct lu_fid *fid)
 {
        LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
-       LASSERTF(!fid_is_igif(fid), DFID"\n", PFID(fid));
+       LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
        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 */
@@ -695,7 +743,7 @@ 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)
@@ -724,6 +772,17 @@ 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;
 
@@ -762,7 +821,7 @@ static inline void osd_ipd_put(const struct lu_env *env,
 
 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,
-                            loff_t *offs, handle_t *handle);
+                            int write_NUL, loff_t *offs, handle_t *handle);
 
 static inline
 struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
@@ -784,6 +843,78 @@ struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
         return child_dentry;
 }
 
+#ifdef OSD_TRACK_DECLARES
+extern int osd_trans_declare_op2rb[];
+
+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);
+       LASSERT(op < OSD_OT_MAX);
+
+       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);
+       LASSERT(op < OSD_OT_MAX);
+
+       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];
+               LASSERTF(rb < OSD_OT_MAX, "op = %u\n", op);
+               LASSERTF(oti->oti_declare_ops_rb[rb] > 0, "rb = %u\n", rb);
+               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);
+       LASSERT(op < OSD_OT_MAX);
+
+       oti->oti_declare_ops_rb[op]++;
+}
+#else
+static inline void osd_trans_declare_op(const struct lu_env *env,
+                                       struct osd_thandle *oh,
+                                       unsigned int op, int credits)
+{
+       oh->ot_credits += credits;
+}
+
+static inline void osd_trans_exec_op(const struct lu_env *env,
+                                    struct thandle *th, unsigned int op)
+{
+}
+
+static inline void osd_trans_declare_rb(const struct lu_env *env,
+                                       struct thandle *th, unsigned int op)
+{
+}
+#endif
+
 /**
  * Helper function to pack the fid, ldiskfs stores fid in packed format.
  */
@@ -814,5 +945,31 @@ int osd_fid_unpack(struct lu_fid *fid, const struct osd_fid_pack *pack)
         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;
+}
+
 #endif /* __KERNEL__ */
 #endif /* _OSD_INTERNAL_H */