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LU-3126 osd: remove fld lookup during configuration
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_internal.h
index c839eb9..7022073 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, Intel Corporation.
+ * Copyright (c) 2011, 2013, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 /* struct dirent64 */
 #include <linux/dirent.h>
 
+#include <ldiskfs/ldiskfs_config.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
 
 /* fsfilt_{get|put}_ops */
 #include <lustre_fsfilt.h>
@@ -83,12 +76,24 @@ 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)
 
+#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;
@@ -157,56 +162,22 @@ struct osd_obj_map {
        struct semaphore om_dir_init_sem;
 };
 
-#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_mdobj {
+       struct dentry   *om_root;      /* AGENT/<index> */
+       obd_seq         om_index;     /* mdt index */
+       cfs_list_t      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)
-
-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_SIZE       64
 #define OSD_OTABLE_IT_CACHE_MASK       (~(OSD_OTABLE_IT_CACHE_SIZE - 1))
 
 struct osd_inconsistent_item {
@@ -240,9 +211,6 @@ struct osd_otable_it {
        struct osd_device       *ooi_dev;
        struct osd_otable_cache  ooi_cache;
 
-       /* For osd_otable_it_key. */
-       __u8                     ooi_key[16];
-
        /* 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. */
@@ -255,8 +223,6 @@ struct osd_otable_it {
                                 ooi_waiting:1; /* it::next is waiting. */
 };
 
-extern const int osd_dto_credits_noquota[];
-
 /*
  * osd device.
  */
@@ -273,7 +239,13 @@ struct osd_device {
          * Fid Capability
          */
        unsigned int              od_fl_capa:1,
-                                 od_is_md:1; /* set in ->ldo_prepare */
+                                 od_maybe_new:1,
+                                 od_noscrub:1,
+                                 od_dirent_journal:1,
+                                 od_igif_inoi:1,
+                                 od_check_ff:1,
+                                 od_is_ost:1;
+
         unsigned long             od_capa_timeout;
         __u32                     od_capa_alg;
         struct lustre_capa_key   *od_capa_keys;
@@ -288,13 +260,12 @@ struct osd_device {
         struct obd_statfs         od_statfs;
        spinlock_t                od_osfs_lock;
 
-       unsigned int              od_noscrub:1;
-
        struct fsfilt_operations *od_fsops;
        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;
@@ -307,6 +278,7 @@ struct osd_device {
        struct mutex              od_otable_mutex;
        struct osd_otable_it     *od_otable_it;
        struct osd_scrub          od_scrub;
+       cfs_list_t                od_ios_list;
 
        /* service name associated with the osd device */
        char                      od_svname[MAX_OBD_NAME];
@@ -316,26 +288,6 @@ struct osd_device {
        struct qsd_instance      *od_quota_slave;
 };
 
-#define OSD_TRACK_DECLARES
-#ifdef OSD_TRACK_DECLARES
-#define OSD_DECLARE_OP(oh, op, credits)                                        \
-do {                                                                   \
-       LASSERT((oh)->ot_handle == NULL);                               \
-       ((oh)->ot_declare_ ##op)++;                                     \
-       ((oh)->ot_declare_ ##op ##_cred) += (credits);                  \
-       (oh)->ot_credits += (credits);                                  \
-} while (0)
-#define OSD_EXEC_OP(handle, op)                                                \
-do {                                                                   \
-       struct osd_thandle *oh = container_of(handle, typeof(*oh), ot_super); \
-       LASSERT((oh)->ot_declare_ ##op > 0);                            \
-       ((oh)->ot_declare_ ##op)--;                                     \
-} while (0)
-#else
-#define OSD_DECLARE_OP(oh, op, credits) (oh)->ot_credits += (credits)
-#define OSD_EXEC_OP(oh, op)
-#endif
-
 /* There are at most 10 uid/gids are affected in a transaction, and
  * that's rename case:
  * - 2 for source parent uid & gid;
@@ -349,48 +301,34 @@ do {                                                                      \
  */
 #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;
+        struct ldiskfs_journal_cb_entry ot_jcb;
         cfs_list_t              ot_dcb_list;
-        /* Link to the device, for debugging. */
-        struct lu_ref_link     *ot_dev_link;
+       /* 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];
        struct lquota_trans    *ot_quota_trans;
-
-#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           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;
-       unsigned char           ot_declare_quota;
-
-       unsigned short          ot_declare_attr_set_cred;
-       unsigned short          ot_declare_punch_cred;
-       unsigned short          ot_declare_xattr_set_cred;
-       unsigned short          ot_declare_create_cred;
-       unsigned short          ot_declare_destroy_cred;
-       unsigned short          ot_declare_ref_add_cred;
-       unsigned short          ot_declare_ref_del_cred;
-       unsigned short          ot_declare_write_cred;
-       unsigned short          ot_declare_insert_cred;
-       unsigned short          ot_declare_delete_cred;
-       unsigned short          ot_declare_quota_cred;
-#endif
-
 #if OSD_THANDLE_STATS
         /** time when this handle was allocated */
         cfs_time_t oth_alloced;
@@ -468,7 +406,7 @@ 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
@@ -519,23 +457,25 @@ struct osd_it_quota {
        cfs_list_t               oiq_list;
 };
 
-#define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
+#define MAX_BLOCKS_PER_PAGE (PAGE_CACHE_SIZE / 512)
 
 struct osd_iobuf {
-        cfs_waitq_t        dr_wait;
-        cfs_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 page       *dr_pages[PTLRPC_MAX_BRW_PAGES];
-        unsigned long      dr_blocks[PTLRPC_MAX_BRW_PAGES*MAX_BLOCKS_PER_PAGE];
-        unsigned long      dr_start_time;
-        unsigned long      dr_elapsed;  /* how long io took */
-        struct osd_device *dr_dev;
+       cfs_waitq_t        dr_wait;
+       cfs_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 */
 };
 
@@ -553,8 +493,10 @@ struct osd_thread_info {
 
         struct lu_fid          oti_fid;
        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;
 
         /*
@@ -591,10 +533,10 @@ struct osd_thread_info {
                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;
 
-        cfs_kstatfs_t          oti_ksfs;
+       struct kstatfs          oti_ksfs;
 
         /** IAM iterator for index operation. */
         struct iam_iterator    oti_idx_it;
@@ -623,36 +565,70 @@ struct osd_thread_info {
                /* 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];
-        struct lu_env          oti_obj_delete_tx_env;
+       /** 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)
+{
+       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);
 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
@@ -662,10 +638,16 @@ 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);
-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_obj_map_init(struct osd_device *osd);
+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);
@@ -674,14 +656,24 @@ int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
                       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_map_update(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_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,
                        struct thandle *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,
+                       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);
+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);
@@ -691,6 +683,22 @@ 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,
+                  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,
@@ -764,8 +772,8 @@ static inline struct osd_oi *osd_fid2oi(struct osd_device *osd,
 {
        LASSERTF(!fid_is_idif(fid), DFID"\n", PFID(fid));
        LASSERTF(!fid_is_last_id(fid), DFID"\n", PFID(fid));
-       LASSERTF(!fid_is_igif(fid), DFID"\n", PFID(fid));
-       LASSERT(osd->od_oi_table != NULL && osd->od_oi_count >= 1);
+       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)];
@@ -836,7 +844,6 @@ 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;
 
@@ -897,6 +904,106 @@ struct dentry *osd_child_dentry_by_inode(const struct lu_env *env,
         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.
  */
@@ -953,5 +1060,9 @@ static inline loff_t ldiskfs_get_htree_eof(struct file *filp)
                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));
+}
 #endif /* __KERNEL__ */
 #endif /* _OSD_INTERNAL_H */