From: John L. Hammond <john.hamm...@intel.com>

Clients no longer need to track the max and default MDS cookiesizes
so remove
 the obsolete obod o_valid flag OBD_MD_FLCOOKIE,
 the struct client_obd members cl_{default,max}_mds_cookiesize,
 the struct obd_trans_info and parameters of this type,
 the cookiesize parameters from md_init_ea_size(),
 the files llite/*/{default,max}_cookiesize, and
 any code that needlessly handled these values.

Signed-off-by: John L. Hammond <john.hamm...@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6017
Reviewed-on: http://review.whamcloud.com/12922
Reviewed-by: Lai Siyao <lai.si...@intel.com>
Reviewed-by: Andreas Dilger <andreas.dil...@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhurav...@intel.com>
Signed-off-by: James Simmons <jsimm...@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_idl.h      |    7 +-
 drivers/staging/lustre/lustre/include/lustre_mdc.h |   20 ++-----
 drivers/staging/lustre/lustre/include/obd.h        |   46 ++------------
 drivers/staging/lustre/lustre/include/obd_class.h  |   31 ++++------
 drivers/staging/lustre/lustre/ldlm/ldlm_lib.c      |    3 +-
 drivers/staging/lustre/lustre/llite/lcommon_misc.c |   13 +---
 drivers/staging/lustre/lustre/lmv/lmv_obd.c        |   23 ++-----
 .../staging/lustre/lustre/lov/lov_cl_internal.h    |    1 -
 drivers/staging/lustre/lustre/lov/lov_internal.h   |    2 -
 drivers/staging/lustre/lustre/lov/lov_request.c    |    1 -
 drivers/staging/lustre/lustre/mdc/mdc_locks.c      |    2 -
 drivers/staging/lustre/lustre/mdc/mdc_reint.c      |    4 -
 drivers/staging/lustre/lustre/mdc/mdc_request.c    |   15 +----
 .../staging/lustre/lustre/obdecho/echo_client.c    |   58 ++++++-------------
 drivers/staging/lustre/lustre/osc/osc_request.c    |   62 ++++---------------
 .../staging/lustre/lustre/ptlrpc/pack_generic.c    |    4 +-
 drivers/staging/lustre/lustre/ptlrpc/wiretest.c    |   10 +--
 17 files changed, 79 insertions(+), 223 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h 
b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 7645ed9..5d2f845 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -1664,7 +1664,7 @@ lov_mds_md_max_stripe_count(size_t buf_size, __u32 
lmm_magic)
 #define OBD_MD_FLCKSUM     (0x00100000ULL) /* bulk data checksum */
 #define OBD_MD_FLQOS       (0x00200000ULL) /* quality of service stats */
 /*#define OBD_MD_FLOSCOPQ    (0x00400000ULL) osc opaque data, never used */
-#define OBD_MD_FLCOOKIE    (0x00800000ULL) /* log cancellation cookie */
+/*     OBD_MD_FLCOOKIE    (0x00800000ULL) obsolete in 2.8 */
 #define OBD_MD_FLGROUP     (0x01000000ULL) /* group */
 #define OBD_MD_FLFID       (0x02000000ULL) /* ->ost write inline fid */
 #define OBD_MD_FLEPOCH     (0x04000000ULL) /* ->ost write with ioepoch */
@@ -2091,7 +2091,7 @@ struct mdt_body {
        __u32   mbo_eadatasize;
        __u32   mbo_aclsize;
        __u32   mbo_max_mdsize;
-       __u32   mbo_max_cookiesize;
+       __u32   mbo_unused3;    /* was max_cookiesize until 2.8 */
        __u32   mbo_uid_h;      /* high 32-bits of uid, for FUID */
        __u32   mbo_gid_h;      /* high 32-bits of gid, for FUID */
        __u32   mbo_padding_5;  /* also fix lustre_swab_mdt_body */
@@ -3226,7 +3226,8 @@ struct obdo {
        __u32              o_parent_ver;
        struct lustre_handle    o_handle;  /* brw: lock handle to prolong locks
                                            */
-       struct llog_cookie      o_lcookie; /* destroy: unlink cookie from MDS
+       struct llog_cookie      o_lcookie; /* destroy: unlink cookie from MDS,
+                                           * obsolete in 2.8, reused in OSP
                                            */
        __u32                   o_uid_h;
        __u32                   o_gid_h;
diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h 
b/drivers/staging/lustre/lustre/include/lustre_mdc.h
index 8fc2d3f..92a5c0f 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mdc.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mdc.h
@@ -157,15 +157,14 @@ static inline void mdc_put_rpc_lock(struct mdc_rpc_lock 
*lck,
 }
 
 /**
- * Update the maximum possible easize and cookiesize.
+ * Update the maximum possible easize.
  *
- * The values are learned from ptlrpc replies sent by the MDT.  The
- * default easize and cookiesize is initialized to the minimum value but
- * allowed to grow up to a single page in size if required to handle the
+ * This value is learned from ptlrpc replies sent by the MDT. The
+ * default easize is initialized to the minimum value but allowed
+ * to grow up to a single page in size if required to handle the
  * common case.
  *
- * \see client_obd::cl_default_mds_easize and
- * client_obd::cl_default_mds_cookiesize
+ * \see client_obd::cl_default_mds_easize
  *
  * \param[in] exp      export for MDC device
  * \param[in] body     body of ptlrpc reply from MDT
@@ -176,7 +175,7 @@ static inline void mdc_update_max_ea_from_body(struct 
obd_export *exp,
 {
        if (body->mbo_valid & OBD_MD_FLMODEASIZE) {
                struct client_obd *cli = &exp->exp_obd->u.cli;
-               u32 def_cookiesize, def_easize;
+               u32 def_easize;
 
                if (cli->cl_max_mds_easize < body->mbo_max_mdsize)
                        cli->cl_max_mds_easize = body->mbo_max_mdsize;
@@ -184,13 +183,6 @@ static inline void mdc_update_max_ea_from_body(struct 
obd_export *exp,
                def_easize = min_t(__u32, body->mbo_max_mdsize,
                                   OBD_MAX_DEFAULT_EA_SIZE);
                cli->cl_default_mds_easize = def_easize;
-
-               if (cli->cl_max_mds_cookiesize < body->mbo_max_cookiesize)
-                       cli->cl_max_mds_cookiesize = body->mbo_max_cookiesize;
-
-               def_cookiesize = min_t(__u32, body->mbo_max_cookiesize,
-                                      OBD_MAX_DEFAULT_COOKIE_SIZE);
-               cli->cl_default_mds_cookiesize = def_cookiesize;
        }
 }
 
diff --git a/drivers/staging/lustre/lustre/include/obd.h 
b/drivers/staging/lustre/lustre/include/obd.h
index 2811901..4691121 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -204,7 +204,6 @@ enum obd_cl_sem_lock_class {
  * on the MDS.
  */
 #define OBD_MAX_DEFAULT_EA_SIZE                4096
-#define OBD_MAX_DEFAULT_COOKIE_SIZE    4096
 
 struct mdc_rpc_lock;
 struct obd_import;
@@ -214,7 +213,7 @@ struct client_obd {
        struct obd_import       *cl_import; /* ptlrpc connection state */
        size_t                   cl_conn_count;
        /*
-        * Cache maximum and default values for easize and cookiesize. This is
+        * Cache maximum and default values for easize. This is
         * strictly a performance optimization to minimize calls to
         * obd_size_diskmd(). The default values are used to calculate the
         * initial size of a request buffer. The ptlrpc layer will resize the
@@ -235,18 +234,6 @@ struct client_obd {
         * run-time if a larger observed size is advertised by the MDT.
         */
        u32                      cl_max_mds_easize;
-       /* Default cookie size for llog cookies (see struct llog_cookie). It is
-        * initialized to zero at mount-time, then it tracks the largest
-        * observed cookie size advertised by the MDT, up to a maximum value of
-        * OBD_MAX_DEFAULT_COOKIE_SIZE. Note that llog_cookies are not
-        * used by clients communicating with MDS versions 2.4.0 and later.
-        */
-       u32                      cl_default_mds_cookiesize;
-       /* Maximum possible cookie size computed at mount-time based on
-        * the number of OSTs in the filesystem. May be increased at
-        * run-time if a larger observed size is advertised by the MDT.
-        */
-       u32                      cl_max_mds_cookiesize;
 
        enum lustre_sec_part     cl_sp_me;
        enum lustre_sec_part     cl_sp_to;
@@ -447,8 +434,6 @@ struct lmv_obd {
        int                     connected;
        int                     max_easize;
        int                     max_def_easize;
-       int                     max_cookiesize;
-       int                     max_def_cookiesize;
 
        u32                     tgts_size; /* size of tgts array */
        struct lmv_tgt_desc     **tgts;
@@ -505,21 +490,6 @@ struct niobuf_local {
 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
 #define N_LOCAL_TEMP_PAGE 0x10000000
 
-struct obd_trans_info {
-       __u64               oti_xid;
-       /* Only used on the server side for tracking acks. */
-       struct oti_req_ack_lock {
-               struct lustre_handle lock;
-               __u32           mode;
-       }                       oti_ack_locks[4];
-       void                *oti_handle;
-       struct llog_cookie       oti_onecookie;
-       struct llog_cookie      *oti_logcookies;
-
-       /** VBR: versions */
-       __u64               oti_pre_version;
-};
-
 /*
  * Events signalled through obd_notify() upcall-chain.
  */
@@ -891,24 +861,22 @@ struct obd_ops {
                        struct lov_stripe_md **mem_tgt,
                        struct lov_mds_md *disk_src, int disk_len);
        int (*create)(const struct lu_env *env, struct obd_export *exp,
-                     struct obdo *oa, struct obd_trans_info *oti);
+                     struct obdo *oa);
        int (*destroy)(const struct lu_env *env, struct obd_export *exp,
-                      struct obdo *oa, struct obd_trans_info *oti);
+                      struct obdo *oa);
        int (*setattr)(const struct lu_env *, struct obd_export *exp,
-                      struct obd_info *oinfo, struct obd_trans_info *oti);
+                      struct obd_info *oinfo);
        int (*getattr)(const struct lu_env *env, struct obd_export *exp,
                       struct obd_info *oinfo);
        int (*preprw)(const struct lu_env *env, int cmd,
                      struct obd_export *exp, struct obdo *oa, int objcount,
                      struct obd_ioobj *obj, struct niobuf_remote *remote,
-                     int *nr_pages, struct niobuf_local *local,
-                     struct obd_trans_info *oti);
+                     int *nr_pages, struct niobuf_local *local);
        int (*commitrw)(const struct lu_env *env, int cmd,
                        struct obd_export *exp, struct obdo *oa,
                        int objcount, struct obd_ioobj *obj,
                        struct niobuf_remote *remote, int pages,
-                       struct niobuf_local *local,
-                       struct obd_trans_info *oti, int rc);
+                       struct niobuf_local *local, int rc);
        int (*init_export)(struct obd_export *exp);
        int (*destroy_export)(struct obd_export *exp);
 
@@ -1018,7 +986,7 @@ struct md_ops {
                        u64, const char *, const char *, int, int, int,
                        struct ptlrpc_request **);
 
-       int (*init_ea_size)(struct obd_export *, u32, u32, u32, u32);
+       int (*init_ea_size)(struct obd_export *, u32, u32);
 
        int (*get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
                             struct obd_export *, struct obd_export *,
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h 
b/drivers/staging/lustre/lustre/include/obd_class.h
index 8f1d681..a27dbc8 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -686,26 +686,26 @@ static inline int obd_free_memmd(struct obd_export *exp,
 }
 
 static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
-                            struct obdo *obdo, struct obd_trans_info *oti)
+                            struct obdo *obdo)
 {
        int rc;
 
        EXP_CHECK_DT_OP(exp, create);
        EXP_COUNTER_INCREMENT(exp, create);
 
-       rc = OBP(exp->exp_obd, create)(env, exp, obdo, oti);
+       rc = OBP(exp->exp_obd, create)(env, exp, obdo);
        return rc;
 }
 
 static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
-                             struct obdo *obdo, struct obd_trans_info *oti)
+                             struct obdo *obdo)
 {
        int rc;
 
        EXP_CHECK_DT_OP(exp, destroy);
        EXP_COUNTER_INCREMENT(exp, destroy);
 
-       rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, oti);
+       rc = OBP(exp->exp_obd, destroy)(env, exp, obdo);
        return rc;
 }
 
@@ -722,15 +722,14 @@ static inline int obd_getattr(const struct lu_env *env, 
struct obd_export *exp,
 }
 
 static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
-                             struct obd_info *oinfo,
-                             struct obd_trans_info *oti)
+                             struct obd_info *oinfo)
 {
        int rc;
 
        EXP_CHECK_DT_OP(exp, setattr);
        EXP_COUNTER_INCREMENT(exp, setattr);
 
-       rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
+       rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo);
        return rc;
 }
 
@@ -1056,8 +1055,7 @@ static inline int obd_preprw(const struct lu_env *env, 
int cmd,
                             struct obd_export *exp, struct obdo *oa,
                             int objcount, struct obd_ioobj *obj,
                             struct niobuf_remote *remote, int *pages,
-                            struct niobuf_local *local,
-                            struct obd_trans_info *oti)
+                            struct niobuf_local *local)
 {
        int rc;
 
@@ -1065,7 +1063,7 @@ static inline int obd_preprw(const struct lu_env *env, 
int cmd,
        EXP_COUNTER_INCREMENT(exp, preprw);
 
        rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
-                                      pages, local, oti);
+                                      pages, local);
        return rc;
 }
 
@@ -1073,14 +1071,13 @@ static inline int obd_commitrw(const struct lu_env 
*env, int cmd,
                               struct obd_export *exp, struct obdo *oa,
                               int objcount, struct obd_ioobj *obj,
                               struct niobuf_remote *rnb, int pages,
-                              struct niobuf_local *local,
-                              struct obd_trans_info *oti, int rc)
+                              struct niobuf_local *local, int rc)
 {
        EXP_CHECK_DT_OP(exp, commitrw);
        EXP_COUNTER_INCREMENT(exp, commitrw);
 
        rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
-                                        rnb, pages, local, oti, rc);
+                                        rnb, pages, local, rc);
        return rc;
 }
 
@@ -1507,14 +1504,12 @@ static inline enum ldlm_mode md_lock_match(struct 
obd_export *exp, __u64 flags,
                                             policy, mode, lockh);
 }
 
-static inline int md_init_ea_size(struct obd_export *exp, int easize,
-                                 int def_asize, int cookiesize,
-                                 int def_cookiesize)
+static inline int md_init_ea_size(struct obd_export *exp, u32 easize,
+                                 u32 def_asize)
 {
        EXP_CHECK_MD_OP(exp, init_ea_size);
        EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
-       return MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
-                                              cookiesize, def_cookiesize);
+       return MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize);
 }
 
 static inline int md_intent_getattr_async(struct obd_export *exp,
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c 
b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
index f3128b6..4f9480e 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
@@ -399,9 +399,8 @@ int client_obd_setup(struct obd_device *obddev, struct 
lustre_cfg *lcfg)
        }
 
        cli->cl_import = imp;
-       /* cli->cl_max_mds_{easize,cookiesize} updated by mdc_init_ea_size() */
+       /* cli->cl_max_mds_easize updated by mdc_init_ea_size() */
        cli->cl_max_mds_easize = sizeof(struct lov_mds_md_v3);
-       cli->cl_max_mds_cookiesize = sizeof(struct llog_cookie);
 
        if (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0) {
                if (!strcmp(lustre_cfg_string(lcfg, 3), "inactive")) {
diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c 
b/drivers/staging/lustre/lustre/llite/lcommon_misc.c
index 07d38e5..4562643 100644
--- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c
+++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c
@@ -49,7 +49,7 @@ int cl_init_ea_size(struct obd_export *md_exp, struct 
obd_export *dt_exp)
 {
        struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 };
        __u32 valsize = sizeof(struct lov_desc);
-       int rc, easize, def_easize, cookiesize;
+       int rc, easize, def_easize;
        struct lov_desc desc;
        __u16 stripes, def_stripes;
 
@@ -67,16 +67,9 @@ int cl_init_ea_size(struct obd_export *md_exp, struct 
obd_export *dt_exp)
        lsm.lsm_stripe_count = def_stripes;
        def_easize = obd_size_diskmd(dt_exp, &lsm);
 
-       cookiesize = stripes * sizeof(struct llog_cookie);
+       CDEBUG(D_HA, "updating def/max_easize: %d/%d\n", def_easize, easize);
 
-       /* default cookiesize is 0 because from 2.4 server doesn't send
-        * llog cookies to client.
-        */
-       CDEBUG(D_HA,
-              "updating def/max_easize: %d/%d def/max_cookiesize: 0/%d\n",
-              def_easize, easize, cookiesize);
-
-       rc = md_init_ea_size(md_exp, easize, def_easize, cookiesize, 0);
+       rc = md_init_ea_size(md_exp, easize, def_easize);
        return rc;
 }
 
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c 
b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 67969a8..75f5958 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -245,8 +245,7 @@ static int lmv_connect(const struct lu_env *env,
        return rc;
 }
 
-static int lmv_init_ea_size(struct obd_export *exp, u32 easize, u32 def_easize,
-                           u32 cookiesize, u32 def_cookiesize)
+static int lmv_init_ea_size(struct obd_export *exp, u32 easize, u32 def_easize)
 {
        struct obd_device   *obd = exp->exp_obd;
        struct lmv_obd      *lmv = &obd->u.lmv;
@@ -262,14 +261,7 @@ static int lmv_init_ea_size(struct obd_export *exp, u32 
easize, u32 def_easize,
                lmv->max_def_easize = def_easize;
                change = 1;
        }
-       if (lmv->max_cookiesize < cookiesize) {
-               lmv->max_cookiesize = cookiesize;
-               change = 1;
-       }
-       if (lmv->max_def_cookiesize < def_cookiesize) {
-               lmv->max_def_cookiesize = def_cookiesize;
-               change = 1;
-       }
+
        if (change == 0)
                return 0;
 
@@ -284,8 +276,7 @@ static int lmv_init_ea_size(struct obd_export *exp, u32 
easize, u32 def_easize,
                        continue;
                }
 
-               rc = md_init_ea_size(tgt->ltd_exp, easize, def_easize,
-                                    cookiesize, def_cookiesize);
+               rc = md_init_ea_size(tgt->ltd_exp, easize, def_easize);
                if (rc) {
                        CERROR("%s: obd_init_ea_size() failed on MDT target %d: 
rc = %d\n",
                               obd->obd_name, i, rc);
@@ -368,8 +359,7 @@ static int lmv_connect_mdc(struct obd_device *obd, struct 
lmv_tgt_desc *tgt)
        tgt->ltd_exp = mdc_exp;
        lmv->desc.ld_active_tgt_count++;
 
-       md_init_ea_size(tgt->ltd_exp, lmv->max_easize, lmv->max_def_easize,
-                       lmv->max_cookiesize, lmv->max_def_cookiesize);
+       md_init_ea_size(tgt->ltd_exp, lmv->max_easize, lmv->max_def_easize);
 
        CDEBUG(D_CONFIG, "Connected to %s(%s) successfully (%d)\n",
               mdc_obd->obd_name, mdc_obd->obd_uuid.uuid,
@@ -483,7 +473,7 @@ static int lmv_add_target(struct obd_device *obd, struct 
obd_uuid *uuidp,
                } else {
                        int easize = sizeof(struct lmv_stripe_md) +
                                lmv->desc.ld_tgt_count * sizeof(struct lu_fid);
-                       lmv_init_ea_size(obd->obd_self_export, easize, 0, 0, 0);
+                       lmv_init_ea_size(obd->obd_self_export, easize, 0);
                }
        }
 
@@ -538,7 +528,7 @@ int lmv_check_connect(struct obd_device *obd)
        class_export_put(lmv->exp);
        lmv->connected = 1;
        easize = lmv_mds_md_size(lmv->desc.ld_tgt_count, LMV_MAGIC);
-       lmv_init_ea_size(obd->obd_self_export, easize, 0, 0, 0);
+       lmv_init_ea_size(obd->obd_self_export, easize, 0);
        mutex_unlock(&lmv->lmv_init_mutex);
        return 0;
 
@@ -1282,7 +1272,6 @@ static int lmv_setup(struct obd_device *obd, struct 
lustre_cfg *lcfg)
        obd_str2uuid(&lmv->desc.ld_uuid, desc->ld_uuid.uuid);
        lmv->desc.ld_tgt_count = 0;
        lmv->desc.ld_active_tgt_count = 0;
-       lmv->max_cookiesize = 0;
        lmv->max_def_easize = 0;
        lmv->max_easize = 0;
        lmv->lmv_placement = PLACEMENT_CHAR_POLICY;
diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h 
b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
index 4d2b7d3..2b03938 100644
--- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
@@ -412,7 +412,6 @@ struct lov_io_sub {
        int               sub_refcheck;
        int               sub_refcheck2;
        int               sub_reenter;
-       void            *sub_cookie;
 };
 
 /**
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h 
b/drivers/staging/lustre/lustre/lov/lov_internal.h
index 60397a2..bd105d9 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -110,8 +110,6 @@ struct lov_request_set {
        atomic_t                        set_completes;
        atomic_t                        set_success;
        atomic_t                        set_finish_checked;
-       struct llog_cookie              *set_cookies;
-       int                             set_cookie_sent;
        struct list_head                        set_list;
        wait_queue_head_t                       set_waitq;
 };
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c 
b/drivers/staging/lustre/lustre/lov/lov_request.c
index 42e66d1..c8734a6 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -44,7 +44,6 @@ static void lov_init_set(struct lov_request_set *set)
        atomic_set(&set->set_completes, 0);
        atomic_set(&set->set_success, 0);
        atomic_set(&set->set_finish_checked, 0);
-       set->set_cookies = NULL;
        INIT_LIST_HEAD(&set->set_list);
        atomic_set(&set->set_refcount, 1);
        init_waitqueue_head(&set->set_waitq);
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c 
b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index f1f6c08..5b3d0ba 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -386,8 +386,6 @@ static struct ptlrpc_request *mdc_intent_unlink_pack(struct 
obd_export *exp,
 
        req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
                             obddev->u.cli.cl_default_mds_easize);
-       req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
-                            obddev->u.cli.cl_default_mds_cookiesize);
        ptlrpc_request_set_replen(req);
        return req;
 }
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_reint.c 
b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
index 6f62a95..1847e5a 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_reint.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
@@ -288,8 +288,6 @@ int mdc_unlink(struct obd_export *exp, struct md_op_data 
*op_data,
 
        req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
                             obd->u.cli.cl_default_mds_easize);
-       req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
-                            obd->u.cli.cl_default_mds_cookiesize);
        ptlrpc_request_set_replen(req);
 
        *request = req;
@@ -398,8 +396,6 @@ int mdc_rename(struct obd_export *exp, struct md_op_data 
*op_data,
 
        req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
                             obd->u.cli.cl_default_mds_easize);
-       req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
-                            obd->u.cli.cl_default_mds_cookiesize);
        ptlrpc_request_set_replen(req);
 
        rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c 
b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index b62b29f..34ccff8 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -787,8 +787,6 @@ static int mdc_close(struct obd_export *exp, struct 
md_op_data *op_data,
 
        req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
                             obd->u.cli.cl_default_mds_easize);
-       req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
-                            obd->u.cli.cl_default_mds_cookiesize);
 
        ptlrpc_request_set_replen(req);
 
@@ -2646,16 +2644,15 @@ err_rpc_lock:
        return rc;
 }
 
-/* Initialize the default and maximum LOV EA and cookie sizes.  This allows
+/* Initialize the default and maximum LOV EA sizes. This allows
  * us to make MDS RPCs with large enough reply buffers to hold a default
- * sized EA and cookie without having to calculate this (via a call into the
+ * sized EA without having to calculate this (via a call into the
  * LOV + OSCs) each time we make an RPC.  The maximum size is also tracked
  * but not used to avoid wastefully vmalloc()'ing large reply buffers when
  * a large number of stripes is possible.  If a larger reply buffer is
  * required it will be reallocated in the ptlrpc layer due to overflow.
  */
-static int mdc_init_ea_size(struct obd_export *exp, u32 easize, u32 def_easize,
-                           u32 cookiesize, u32 def_cookiesize)
+static int mdc_init_ea_size(struct obd_export *exp, u32 easize, u32 def_easize)
 {
        struct obd_device *obd = exp->exp_obd;
        struct client_obd *cli = &obd->u.cli;
@@ -2666,12 +2663,6 @@ static int mdc_init_ea_size(struct obd_export *exp, u32 
easize, u32 def_easize,
        if (cli->cl_default_mds_easize < def_easize)
                cli->cl_default_mds_easize = def_easize;
 
-       if (cli->cl_max_mds_cookiesize < cookiesize)
-               cli->cl_max_mds_cookiesize = cookiesize;
-
-       if (cli->cl_default_mds_cookiesize < def_cookiesize)
-               cli->cl_default_mds_cookiesize = def_cookiesize;
-
        return 0;
 }
 
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c 
b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index 505582f..df6fbed 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -1100,7 +1100,7 @@ out:
 static u64 last_object_id;
 
 static int echo_create_object(const struct lu_env *env, struct echo_device *ed,
-                             struct obdo *oa, struct obd_trans_info *oti)
+                             struct obdo *oa)
 {
        struct echo_object     *eco;
        struct echo_client_obd *ec = ed->ed_ec;
@@ -1117,7 +1117,7 @@ static int echo_create_object(const struct lu_env *env, 
struct echo_device *ed,
        if (!ostid_id(&oa->o_oi))
                ostid_set_id(&oa->o_oi, ++last_object_id);
 
-       rc = obd_create(env, ec->ec_exp, oa, oti);
+       rc = obd_create(env, ec->ec_exp, oa);
        if (rc != 0) {
                CERROR("Cannot create objects: rc = %d\n", rc);
                goto failed;
@@ -1137,7 +1137,7 @@ static int echo_create_object(const struct lu_env *env, 
struct echo_device *ed,
 
  failed:
        if (created && rc)
-               obd_destroy(env, ec->ec_exp, oa, oti);
+               obd_destroy(env, ec->ec_exp, oa);
        if (rc)
                CERROR("create object failed with: rc = %d\n", rc);
        return rc;
@@ -1237,8 +1237,7 @@ static int echo_client_page_debug_check(struct page 
*page, u64 id,
 
 static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
                            struct echo_object *eco, u64 offset,
-                           u64 count, int async,
-                           struct obd_trans_info *oti)
+                           u64 count, int async)
 {
        u32            npages;
        struct brw_page *pga;
@@ -1332,8 +1331,7 @@ static int echo_client_prep_commit(const struct lu_env 
*env,
                                   struct obd_export *exp, int rw,
                                   struct obdo *oa, struct echo_object *eco,
                                   u64 offset, u64 count,
-                                  u64 batch, struct obd_trans_info *oti,
-                                  int async)
+                                  u64 batch, int async)
 {
        struct obd_ioobj ioo;
        struct niobuf_local *lnb;
@@ -1378,8 +1376,7 @@ static int echo_client_prep_commit(const struct lu_env 
*env,
                ioo.ioo_bufcnt = npages;
 
                lpages = npages;
-               ret = obd_preprw(env, rw, exp, oa, 1, &ioo, rnb, &lpages,
-                                lnb, oti);
+               ret = obd_preprw(env, rw, exp, oa, 1, &ioo, rnb, &lpages, lnb);
                if (ret != 0)
                        goto out;
                LASSERT(lpages == npages);
@@ -1411,14 +1408,11 @@ static int echo_client_prep_commit(const struct lu_env 
*env,
                                                             rnb[i].rnb_len);
                }
 
-               ret = obd_commitrw(env, rw, exp, oa, 1, &ioo,
-                                  rnb, npages, lnb, oti, ret);
+               ret = obd_commitrw(env, rw, exp, oa, 1, &ioo, rnb, npages, lnb,
+                                  ret);
                if (ret != 0)
                        goto out;
 
-               /* Reset oti otherwise it would confuse ldiskfs. */
-               memset(oti, 0, sizeof(*oti));
-
                /* Reuse env context. */
                lu_context_exit((struct lu_context *)&env->le_ctx);
                lu_context_enter((struct lu_context *)&env->le_ctx);
@@ -1432,8 +1426,7 @@ out:
 
 static int echo_client_brw_ioctl(const struct lu_env *env, int rw,
                                 struct obd_export *exp,
-                                struct obd_ioctl_data *data,
-                                struct obd_trans_info *dummy_oti)
+                                struct obd_ioctl_data *data)
 {
        struct obd_device *obd = class_exp2obd(exp);
        struct echo_device *ed = obd2echo_dev(obd);
@@ -1470,15 +1463,13 @@ static int echo_client_brw_ioctl(const struct lu_env 
*env, int rw,
        case 1:
                /* fall through */
        case 2:
-               rc = echo_client_kbrw(ed, rw, oa,
-                                     eco, data->ioc_offset,
-                                     data->ioc_count, async, dummy_oti);
+               rc = echo_client_kbrw(ed, rw, oa, eco, data->ioc_offset,
+                                     data->ioc_count, async);
                break;
        case 3:
-               rc = echo_client_prep_commit(env, ec->ec_exp, rw, oa,
-                                            eco, data->ioc_offset,
-                                            data->ioc_count, data->ioc_plen1,
-                                            dummy_oti, async);
+               rc = echo_client_prep_commit(env, ec->ec_exp, rw, oa, eco,
+                                            data->ioc_offset, data->ioc_count,
+                                            data->ioc_plen1, async);
                break;
        default:
                rc = -EINVAL;
@@ -1496,16 +1487,11 @@ echo_client_iocontrol(unsigned int cmd, struct 
obd_export *exp, int len,
        struct echo_client_obd *ec = ed->ed_ec;
        struct echo_object     *eco;
        struct obd_ioctl_data  *data = karg;
-       struct obd_trans_info   dummy_oti;
        struct lu_env     *env;
-       struct oti_req_ack_lock *ack_lock;
        struct obdo         *oa;
        struct lu_fid      fid;
        int                  rw = OBD_BRW_READ;
        int                  rc = 0;
-       int                  i;
-
-       memset(&dummy_oti, 0, sizeof(dummy_oti));
 
        oa = &data->ioc_obdo1;
        if (!(oa->o_valid & OBD_MD_FLGROUP)) {
@@ -1535,7 +1521,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export 
*exp, int len,
                        goto out;
                }
 
-               rc = echo_create_object(env, ed, oa, &dummy_oti);
+               rc = echo_create_object(env, ed, oa);
                goto out;
 
        case OBD_IOC_DESTROY:
@@ -1546,7 +1532,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export 
*exp, int len,
 
                rc = echo_get_object(&eco, ed, oa);
                if (rc == 0) {
-                       rc = obd_destroy(env, ec->ec_exp, oa, &dummy_oti);
+                       rc = obd_destroy(env, ec->ec_exp, oa);
                        if (rc == 0)
                                eco->eo_deleted = 1;
                        echo_put_object(eco);
@@ -1577,7 +1563,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export 
*exp, int len,
                                .oi_oa = oa,
                        };
 
-                       rc = obd_setattr(env, ec->ec_exp, &oinfo, NULL);
+                       rc = obd_setattr(env, ec->ec_exp, &oinfo);
                        echo_put_object(eco);
                }
                goto out;
@@ -1591,7 +1577,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export 
*exp, int len,
                rw = OBD_BRW_WRITE;
                /* fall through */
        case OBD_IOC_BRW_READ:
-               rc = echo_client_brw_ioctl(env, rw, exp, data, &dummy_oti);
+               rc = echo_client_brw_ioctl(env, rw, exp, data);
                goto out;
 
        default:
@@ -1604,14 +1590,6 @@ out:
        lu_env_fini(env);
        kfree(env);
 
-       /* XXX this should be in a helper also called by target_send_reply */
-       for (ack_lock = dummy_oti.oti_ack_locks, i = 0; i < 4;
-            i++, ack_lock++) {
-               if (!ack_lock->mode)
-                       break;
-               ldlm_lock_decref(&ack_lock->lock, ack_lock->mode);
-       }
-
        return rc;
 }
 
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c 
b/drivers/staging/lustre/lustre/osc/osc_request.c
index ab7f82d..64d95c1 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -221,7 +221,7 @@ static int osc_getattr(const struct lu_env *env, struct 
obd_export *exp,
 }
 
 static int osc_setattr(const struct lu_env *env, struct obd_export *exp,
-                      struct obd_info *oinfo, struct obd_trans_info *oti)
+                      struct obd_info *oinfo)
 {
        struct ptlrpc_request *req;
        struct ost_body *body;
@@ -329,7 +329,7 @@ int osc_setattr_async(struct obd_export *exp, struct 
obd_info *oinfo,
 }
 
 static int osc_create(const struct lu_env *env, struct obd_export *exp,
-                     struct obdo *oa, struct obd_trans_info *oti)
+                     struct obdo *oa)
 {
        struct ptlrpc_request *req;
        struct ost_body *body;
@@ -358,15 +358,6 @@ static int osc_create(const struct lu_env *env, struct 
obd_export *exp,
 
        ptlrpc_request_set_replen(req);
 
-       if ((oa->o_valid & OBD_MD_FLFLAGS) &&
-           oa->o_flags == OBD_FL_DELORPHAN) {
-               DEBUG_REQ(D_HA, req,
-                         "delorphan from OST integration");
-               /* Don't resend the delorphan req */
-               req->rq_no_resend = 1;
-               req->rq_no_delay = 1;
-       }
-
        rc = ptlrpc_queue_wait(req);
        if (rc)
                goto out_req;
@@ -383,12 +374,6 @@ static int osc_create(const struct lu_env *env, struct 
obd_export *exp,
        oa->o_blksize = cli_brw_size(exp->exp_obd);
        oa->o_valid |= OBD_MD_FLBLKSZ;
 
-       if (oti && oa->o_valid & OBD_MD_FLCOOKIE) {
-               if (!oti->oti_logcookies)
-                       oti->oti_logcookies = &oti->oti_onecookie;
-               *oti->oti_logcookies = oa->o_lcookie;
-       }
-
        CDEBUG(D_HA, "transno: %lld\n",
               lustre_msg_get_transno(req->rq_repmsg));
 out_req:
@@ -569,19 +554,8 @@ static int osc_can_send_destroy(struct client_obd *cli)
        return 0;
 }
 
-/* Destroy requests can be async always on the client, and we don't even really
- * care about the return code since the client cannot do anything at all about
- * a destroy failure.
- * When the MDS is unlinking a filename, it saves the file objects into a
- * recovery llog, and these object records are cancelled when the OST reports
- * they were destroyed and sync'd to disk (i.e. transaction committed).
- * If the client dies, or the OST is down when the object should be destroyed,
- * the records are not cancelled, and when the OST reconnects to the MDS next,
- * it will retrieve the llog unlink logs and then sends the log cancellation
- * cookies to the MDS after committing destroy transactions.
- */
 static int osc_destroy(const struct lu_env *env, struct obd_export *exp,
-                      struct obdo *oa, struct obd_trans_info *oti)
+                      struct obdo *oa)
 {
        struct client_obd *cli = &exp->exp_obd->u.cli;
        struct ptlrpc_request *req;
@@ -613,32 +587,22 @@ static int osc_destroy(const struct lu_env *env, struct 
obd_export *exp,
        req->rq_request_portal = OST_IO_PORTAL; /* bug 7198 */
        ptlrpc_at_set_req_timeout(req);
 
-       if (oti && oa->o_valid & OBD_MD_FLCOOKIE)
-               oa->o_lcookie = *oti->oti_logcookies;
        body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
        LASSERT(body);
        lustre_set_wire_obdo(&req->rq_import->imp_connect_data, &body->oa, oa);
 
        ptlrpc_request_set_replen(req);
 
-       /* If osc_destroy is for destroying the unlink orphan,
-        * sent from MDT to OST, which should not be blocked here,
-        * because the process might be triggered by ptlrpcd, and
-        * it is not good to block ptlrpcd thread (b=16006
-        **/
-       if (!(oa->o_flags & OBD_FL_DELORPHAN)) {
-               req->rq_interpret_reply = osc_destroy_interpret;
-               if (!osc_can_send_destroy(cli)) {
-                       struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP,
-                                                         NULL);
-
-                       /*
-                        * Wait until the number of on-going destroy RPCs drops
-                        * under max_rpc_in_flight
-                        */
-                       l_wait_event_exclusive(cli->cl_destroy_waitq,
-                                              osc_can_send_destroy(cli), &lwi);
-               }
+       req->rq_interpret_reply = osc_destroy_interpret;
+       if (!osc_can_send_destroy(cli)) {
+               struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+
+               /*
+                * Wait until the number of on-going destroy RPCs drops
+                * under max_rpc_in_flight
+                */
+               l_wait_event_exclusive(cli->cl_destroy_waitq,
+                                      osc_can_send_destroy(cli), &lwi);
        }
 
        /* Do not wait for response */
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c 
b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
index bca781a..1c06b4e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
@@ -1706,7 +1706,7 @@ void lustre_swab_mdt_body(struct mdt_body *b)
        __swab32s(&b->mbo_eadatasize);
        __swab32s(&b->mbo_aclsize);
        __swab32s(&b->mbo_max_mdsize);
-       __swab32s(&b->mbo_max_cookiesize);
+       CLASSERT(offsetof(typeof(*b), mbo_unused3));
        __swab32s(&b->mbo_uid_h);
        __swab32s(&b->mbo_gid_h);
        CLASSERT(offsetof(typeof(*b), mbo_padding_5) != 0);
@@ -2103,8 +2103,6 @@ static void dump_obdo(struct obdo *oa)
        if (valid & OBD_MD_FLHANDLE)
                CDEBUG(D_RPCTRACE, "obdo: o_handle = %lld\n",
                       oa->o_handle.cookie);
-       if (valid & OBD_MD_FLCOOKIE)
-               CDEBUG(D_RPCTRACE, "obdo: o_lcookie = (llog_cookie dumping not 
yet implemented)\n");
 }
 
 void dump_ost_body(struct ost_body *ob)
diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c 
b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
index 391e83e..a6edc8d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
@@ -1245,8 +1245,6 @@ void lustre_assert_wire_constants(void)
                 OBD_MD_FLCKSUM);
        LASSERTF(OBD_MD_FLQOS == (0x00200000ULL), "found 0x%.16llxULL\n",
                 OBD_MD_FLQOS);
-       LASSERTF(OBD_MD_FLCOOKIE == (0x00800000ULL), "found 0x%.16llxULL\n",
-                OBD_MD_FLCOOKIE);
        LASSERTF(OBD_MD_FLGROUP == (0x01000000ULL), "found 0x%.16llxULL\n",
                 OBD_MD_FLGROUP);
        LASSERTF(OBD_MD_FLFID == (0x02000000ULL), "found 0x%.16llxULL\n",
@@ -1823,10 +1821,10 @@ void lustre_assert_wire_constants(void)
                 (long long)(int)offsetof(struct mdt_body, mbo_max_mdsize));
        LASSERTF((int)sizeof(((struct mdt_body *)0)->mbo_max_mdsize) == 4, 
"found %lld\n",
                 (long long)(int)sizeof(((struct mdt_body 
*)0)->mbo_max_mdsize));
-       LASSERTF((int)offsetof(struct mdt_body, mbo_max_cookiesize) == 160, 
"found %lld\n",
-                (long long)(int)offsetof(struct mdt_body, mbo_max_cookiesize));
-       LASSERTF((int)sizeof(((struct mdt_body *)0)->mbo_max_cookiesize) == 4, 
"found %lld\n",
-                (long long)(int)sizeof(((struct mdt_body 
*)0)->mbo_max_cookiesize));
+       LASSERTF((int)offsetof(struct mdt_body, mbo_unused3) == 160, "found 
%lld\n",
+                (long long)(int)offsetof(struct mdt_body, mbo_unused3));
+       LASSERTF((int)sizeof(((struct mdt_body *)0)->mbo_unused3) == 4, "found 
%lld\n",
+                (long long)(int)sizeof(((struct mdt_body *)0)->mbo_unused3));
        LASSERTF((int)offsetof(struct mdt_body, mbo_uid_h) == 164, "found 
%lld\n",
                 (long long)(int)offsetof(struct mdt_body, mbo_uid_h));
        LASSERTF((int)sizeof(((struct mdt_body *)0)->mbo_uid_h) == 4, "found 
%lld\n",
-- 
1.7.1

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