X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmdt%2Fmdt_lproc.c;h=0ee5148906a8ea8c33fb8494ac21d9485046fcb0;hp=deae5bb4f249f00969f46edd2c1c64a23a9bdb79;hb=94cb946d1360c0df541423ec10487545e4697aa7;hpb=bc962bde3b109b99c924137ed281d9400637e295

diff --git a/lustre/mdt/mdt_lproc.c b/lustre/mdt/mdt_lproc.c
index deae5bb..0ee5148 100644
--- a/lustre/mdt/mdt_lproc.c
+++ b/lustre/mdt/mdt_lproc.c
@@ -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/
@@ -59,7 +59,6 @@
 #include <obd.h>
 #include <obd_class.h>
 #include <lustre_mds.h>
-#include <lustre_mdt.h>
 #include <lprocfs_status.h>
 #include "mdt_internal.h"
 #include <lnet/lib-lnet.h>
@@ -162,14 +161,12 @@ LPROC_SEQ_FOPS(mdt_rename_stats);
 
 static int lproc_mdt_attach_rename_seqstat(struct mdt_device *mdt)
 {
-	struct lu_device *ld = &mdt->mdt_md_dev.md_lu_dev;
-	struct obd_device *obd = ld->ld_obd;
 	int i;
 
 	for (i = 0; i < RENAME_LAST; i++)
 		spin_lock_init(&mdt->mdt_rename_stats.hist[i].oh_lock);
 
-	return lprocfs_obd_seq_create(obd, "rename_stats", 0644,
+	return lprocfs_obd_seq_create(mdt2obd_dev(mdt), "rename_stats", 0644,
 				      &mdt_rename_stats_fops, mdt);
 }
 
@@ -188,8 +185,7 @@ void mdt_rename_counter_tally(struct mdt_thread_info *info,
         rc = mo_attr_get(info->mti_env, mdt_object_child(src), ma);
         if (rc) {
                 CERROR("%s: "DFID" attr_get, rc = %d\n",
-		       req->rq_export->exp_obd->obd_name,
-		       PFID(mdt_object_fid(src)), rc);
+		       mdt_obd_name(mdt), PFID(mdt_object_fid(src)), rc);
                 return;
         }
 
@@ -209,8 +205,7 @@ void mdt_rename_counter_tally(struct mdt_thread_info *info,
         rc = mo_attr_get(info->mti_env, mdt_object_child(tgt), ma);
         if (rc) {
                 CERROR("%s: "DFID" attr_get, rc = %d\n",
-		       req->rq_export->exp_obd->obd_name,
-		       PFID(mdt_object_fid(tgt)), rc);
+		       mdt_obd_name(mdt), PFID(mdt_object_fid(tgt)), rc);
                 return;
         }
 
@@ -220,62 +215,65 @@ void mdt_rename_counter_tally(struct mdt_thread_info *info,
 
 int mdt_procfs_init(struct mdt_device *mdt, const char *name)
 {
-        struct lu_device *ld = &mdt->mdt_md_dev.md_lu_dev;
-        struct obd_device *obd = ld->ld_obd;
-        struct lprocfs_static_vars lvars;
-        int rc;
-        ENTRY;
-
-        LASSERT(name != NULL);
+	struct obd_device		*obd = mdt2obd_dev(mdt);
+	struct lprocfs_static_vars	 lvars;
+	int				 rc;
+	ENTRY;
+
+	LASSERT(name != NULL);
+
+	lprocfs_mdt_init_vars(&lvars);
+	rc = lprocfs_obd_setup(obd, lvars.obd_vars);
+	if (rc) {
+		CERROR("%s: cannot create proc entries: rc = %d\n",
+		       mdt_obd_name(mdt), rc);
+		return rc;
+	}
 
-        lprocfs_mdt_init_vars(&lvars);
-        rc = lprocfs_obd_setup(obd, lvars.obd_vars);
-        if (rc) {
-                CERROR("Can't init lprocfs, rc %d\n", rc);
-                return rc;
-        }
-        ptlrpc_lprocfs_register_obd(obd);
-
-        obd->obd_proc_exports_entry = proc_mkdir("exports",
-                                                 obd->obd_proc_entry);
-        if (obd->obd_proc_exports_entry)
-                lprocfs_add_simple(obd->obd_proc_exports_entry,
-                                   "clear", lprocfs_nid_stats_clear_read,
-                                   lprocfs_nid_stats_clear_write, obd, NULL);
-        rc = lprocfs_alloc_md_stats(obd, LPROC_MDT_LAST);
+	rc = hsm_cdt_procfs_init(mdt);
+	if (rc) {
+		CERROR("%s: cannot create hsm proc entries: rc = %d\n",
+		       mdt_obd_name(mdt), rc);
+		return rc;
+	}
+
+	obd->obd_proc_exports_entry = proc_mkdir("exports",
+						 obd->obd_proc_entry);
+	if (obd->obd_proc_exports_entry)
+		lprocfs_add_simple(obd->obd_proc_exports_entry,
+				   "clear", lprocfs_nid_stats_clear_read,
+				   lprocfs_nid_stats_clear_write, obd, NULL);
+	rc = lprocfs_alloc_md_stats(obd, LPROC_MDT_LAST);
 	if (rc)
 		return rc;
-	mdt_stats_counter_init(obd->md_stats);
+	mdt_stats_counter_init(obd->obd_md_stats);
 
 	rc = lprocfs_job_stats_init(obd, LPROC_MDT_LAST,
 				    mdt_stats_counter_init);
 
-        rc = lproc_mdt_attach_rename_seqstat(mdt);
-        if (rc)
-                CERROR("%s: MDT can not create rename stats rc = %d\n",
-                       obd->obd_name, rc);
+	rc = lproc_mdt_attach_rename_seqstat(mdt);
+	if (rc)
+		CERROR("%s: MDT can not create rename stats rc = %d\n",
+		       mdt_obd_name(mdt), rc);
 
-        RETURN(rc);
+	RETURN(rc);
 }
 
-int mdt_procfs_fini(struct mdt_device *mdt)
+void mdt_procfs_fini(struct mdt_device *mdt)
 {
-        struct lu_device *ld = &mdt->mdt_md_dev.md_lu_dev;
-        struct obd_device *obd = ld->ld_obd;
-
+	struct obd_device *obd = mdt2obd_dev(mdt);
+
+	if (obd->obd_proc_exports_entry != NULL) {
+		lprocfs_remove_proc_entry("clear", obd->obd_proc_exports_entry);
+		obd->obd_proc_exports_entry = NULL;
+	}
+
+	lprocfs_free_per_client_stats(obd);
+	hsm_cdt_procfs_fini(mdt);
+	lprocfs_obd_cleanup(obd);
+	lprocfs_free_md_stats(obd);
+	lprocfs_free_obd_stats(obd);
 	lprocfs_job_stats_fini(obd);
-
-        if (obd->obd_proc_exports_entry) {
-                lprocfs_remove_proc_entry("clear", obd->obd_proc_exports_entry);
-                obd->obd_proc_exports_entry = NULL;
-        }
-        lprocfs_free_per_client_stats(obd);
-        lprocfs_obd_cleanup(obd);
-        ptlrpc_lprocfs_unregister_obd(obd);
-        lprocfs_free_md_stats(obd);
-        lprocfs_free_obd_stats(obd);
-
-        RETURN(0);
 }
 
 static int lprocfs_rd_identity_expire(char *page, char **start, off_t off,
@@ -349,45 +347,46 @@ static int lprocfs_rd_identity_upcall(char *page, char **start, off_t off,
 }
 
 static int lprocfs_wr_identity_upcall(struct file *file, const char *buffer,
-                                      unsigned long count, void *data)
+				      unsigned long count, void *data)
 {
-        struct obd_device *obd = data;
-        struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
-        struct upcall_cache *hash = mdt->mdt_identity_cache;
-        int rc;
-        char *kernbuf;
-
-        if (count >= UC_CACHE_UPCALL_MAXPATH) {
-                CERROR("%s: identity upcall too long\n", obd->obd_name);
-                return -EINVAL;
-        }
-        OBD_ALLOC(kernbuf, count + 1);
-        if (kernbuf == NULL)
-                GOTO(failed, rc = -ENOMEM);
-        if (cfs_copy_from_user(kernbuf, buffer, count))
-                GOTO(failed, rc = -EFAULT);
-
-        /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
+	struct obd_device	*obd = data;
+	struct mdt_device	*mdt = mdt_dev(obd->obd_lu_dev);
+	struct upcall_cache	*hash = mdt->mdt_identity_cache;
+	int			 rc;
+	char			*kernbuf;
+
+	if (count >= UC_CACHE_UPCALL_MAXPATH) {
+		CERROR("%s: identity upcall too long\n", mdt_obd_name(mdt));
+		return -EINVAL;
+	}
+	OBD_ALLOC(kernbuf, count + 1);
+	if (kernbuf == NULL)
+		GOTO(failed, rc = -ENOMEM);
+	if (copy_from_user(kernbuf, buffer, count))
+		GOTO(failed, rc = -EFAULT);
+
+	/* Remove any extraneous bits from the upcall (e.g. linefeeds) */
 	write_lock(&hash->uc_upcall_rwlock);
 	sscanf(kernbuf, "%s", hash->uc_upcall);
 	write_unlock(&hash->uc_upcall_rwlock);
 
-        if (strcmp(hash->uc_name, obd->obd_name) != 0)
-                CWARN("%s: write to upcall name %s\n",
-                      obd->obd_name, hash->uc_upcall);
+	if (strcmp(hash->uc_name, mdt_obd_name(mdt)) != 0)
+		CWARN("%s: write to upcall name %s\n",
+		      mdt_obd_name(mdt), hash->uc_upcall);
 
-        if (strcmp(hash->uc_upcall, "NONE") == 0 && mdt->mdt_opts.mo_acl)
-                CWARN("%s: disable \"identity_upcall\" with ACL enabled maybe "
-                      "cause unexpected \"EACCESS\"\n", obd->obd_name);
+	if (strcmp(hash->uc_upcall, "NONE") == 0 && mdt->mdt_opts.mo_acl)
+		CWARN("%s: disable \"identity_upcall\" with ACL enabled maybe "
+		      "cause unexpected \"EACCESS\"\n", mdt_obd_name(mdt));
 
-        CWARN("%s: identity upcall set to %s\n", obd->obd_name, hash->uc_upcall);
-        OBD_FREE(kernbuf, count + 1);
-        RETURN(count);
+	CDEBUG(D_CONFIG, "%s: identity upcall set to %s\n", mdt_obd_name(mdt),
+	       hash->uc_upcall);
+	OBD_FREE(kernbuf, count + 1);
+	RETURN(count);
 
  failed:
-        if (kernbuf)
-                OBD_FREE(kernbuf, count + 1);
-        RETURN(rc);
+	if (kernbuf)
+		OBD_FREE(kernbuf, count + 1);
+	RETURN(rc);
 }
 
 static int lprocfs_wr_identity_flush(struct file *file, const char *buffer,
@@ -406,117 +405,121 @@ static int lprocfs_wr_identity_flush(struct file *file, const char *buffer,
 }
 
 static int lprocfs_wr_identity_info(struct file *file, const char *buffer,
-                                    unsigned long count, void *data)
+				    unsigned long count, void *data)
 {
-        struct obd_device *obd = data;
-        struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
-        struct identity_downcall_data *param;
-        int size = sizeof(*param), rc, checked = 0;
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+	struct identity_downcall_data *param;
+	int size = sizeof(*param), rc, checked = 0;
 
 again:
-        if (count < size) {
-                CERROR("%s: invalid data count = %lu, size = %d\n",
-                       obd->obd_name, count, size);
-                return -EINVAL;
-        }
-
-        OBD_ALLOC(param, size);
-        if (param == NULL)
-                return -ENOMEM;
-
-        if (cfs_copy_from_user(param, buffer, size)) {
-                CERROR("%s: bad identity data\n", obd->obd_name);
-                GOTO(out, rc = -EFAULT);
-        }
-
-        if (checked == 0) {
-                checked = 1;
-                if (param->idd_magic != IDENTITY_DOWNCALL_MAGIC) {
-                        CERROR("%s: MDS identity downcall bad params\n",
-                               obd->obd_name);
-                        GOTO(out, rc = -EINVAL);
-                }
-
-                if (param->idd_nperms > N_PERMS_MAX) {
-                        CERROR("%s: perm count %d more than maximum %d\n",
-                               obd->obd_name, param->idd_nperms, N_PERMS_MAX);
-                        GOTO(out, rc = -EINVAL);
-                }
-
-                if (param->idd_ngroups > NGROUPS_MAX) {
-                        CERROR("%s: group count %d more than maximum %d\n",
-                               obd->obd_name, param->idd_ngroups, NGROUPS_MAX);
-                        GOTO(out, rc = -EINVAL);
-                }
-
-                if (param->idd_ngroups) {
-                        rc = param->idd_ngroups; /* save idd_ngroups */
-                        OBD_FREE(param, size);
-                        size = offsetof(struct identity_downcall_data,
-                                        idd_groups[rc]);
-                        goto again;
-                }
-        }
-
-        rc = upcall_cache_downcall(mdt->mdt_identity_cache, param->idd_err,
-                                   param->idd_uid, param);
+	if (count < size) {
+		CERROR("%s: invalid data count = %lu, size = %d\n",
+		       mdt_obd_name(mdt), count, size);
+		return -EINVAL;
+	}
+
+	OBD_ALLOC(param, size);
+	if (param == NULL)
+		return -ENOMEM;
+
+	if (copy_from_user(param, buffer, size)) {
+		CERROR("%s: bad identity data\n", mdt_obd_name(mdt));
+		GOTO(out, rc = -EFAULT);
+	}
+
+	if (checked == 0) {
+		checked = 1;
+		if (param->idd_magic != IDENTITY_DOWNCALL_MAGIC) {
+			CERROR("%s: MDS identity downcall bad params\n",
+			       mdt_obd_name(mdt));
+			GOTO(out, rc = -EINVAL);
+		}
+
+		if (param->idd_nperms > N_PERMS_MAX) {
+			CERROR("%s: perm count %d more than maximum %d\n",
+			       mdt_obd_name(mdt), param->idd_nperms,
+			       N_PERMS_MAX);
+			GOTO(out, rc = -EINVAL);
+		}
+
+		if (param->idd_ngroups > NGROUPS_MAX) {
+			CERROR("%s: group count %d more than maximum %d\n",
+			       mdt_obd_name(mdt), param->idd_ngroups,
+			       NGROUPS_MAX);
+			GOTO(out, rc = -EINVAL);
+		}
+
+		if (param->idd_ngroups) {
+			rc = param->idd_ngroups; /* save idd_ngroups */
+			OBD_FREE(param, size);
+			size = offsetof(struct identity_downcall_data,
+					idd_groups[rc]);
+			goto again;
+		}
+	}
+
+	rc = upcall_cache_downcall(mdt->mdt_identity_cache, param->idd_err,
+				   param->idd_uid, param);
 
 out:
-        if (param != NULL)
-                OBD_FREE(param, size);
+	if (param != NULL)
+		OBD_FREE(param, size);
 
-        return rc ? rc : count;
+	return rc ? rc : count;
 }
 
 /* for debug only */
 static int lprocfs_rd_capa(char *page, char **start, off_t off,
                            int count, int *eof, void *data)
 {
-        struct obd_device *obd = data;
-        struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
 
-        return snprintf(page, count, "capability on: %s %s\n",
-                        mdt->mdt_opts.mo_oss_capa ? "oss" : "",
-                        mdt->mdt_opts.mo_mds_capa ? "mds" : "");
+	return snprintf(page, count, "capability on: %s %s\n",
+			mdt->mdt_lut.lut_oss_capa ? "oss" : "",
+			mdt->mdt_lut.lut_mds_capa ? "mds" : "");
 }
 
 static int lprocfs_wr_capa(struct file *file, const char *buffer,
-                           unsigned long count, void *data)
+			   unsigned long count, void *data)
 {
-        struct obd_device *obd = data;
-        struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
-        int val, rc;
-
-        rc = lprocfs_write_helper(buffer, count, &val);
-        if (rc)
-                return rc;
-
-        if (val < 0 || val > 3) {
-                CERROR("invalid capability mode, only 0/2/3 is accepted.\n"
-                       " 0:  disable fid capability\n"
-                       " 2:  enable MDS fid capability\n"
-                       " 3:  enable both MDS and OSS fid capability\n");
-                return -EINVAL;
-        }
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+	int val, rc;
 
-        /* OSS fid capability needs enable both MDS and OSS fid capability on
-         * MDS */
-        if (val == 1) {
-                CERROR("can't enable OSS fid capability only, you should use "
-                       "'3' to enable both MDS and OSS fid capability.\n");
-                return -EINVAL;
-        }
+	rc = lprocfs_write_helper(buffer, count, &val);
+	if (rc)
+		return rc;
 
-        mdt->mdt_opts.mo_oss_capa = (val & 0x1);
-        mdt->mdt_opts.mo_mds_capa = !!(val & 0x2);
-        mdt->mdt_capa_conf = 1;
-        LCONSOLE_INFO("MDS %s %s MDS fid capability.\n",
-                      obd->obd_name,
-                      mdt->mdt_opts.mo_mds_capa ? "enabled" : "disabled");
-        LCONSOLE_INFO("MDS %s %s OSS fid capability.\n",
-                      obd->obd_name,
-                      mdt->mdt_opts.mo_oss_capa ? "enabled" : "disabled");
-        return count;
+	if (val < 0 || val > 3) {
+		CERROR("invalid capability mode, only 0/2/3 is accepted.\n"
+		       " 0:  disable fid capability\n"
+		       " 2:  enable MDS fid capability\n"
+		       " 3:  enable both MDS and OSS fid capability\n");
+		return -EINVAL;
+	}
+
+	/* OSS fid capability needs enable both MDS and OSS fid capability on
+	 * MDS */
+	if (val == 1) {
+		CERROR("can't enable OSS fid capability only, you should use "
+		       "'3' to enable both MDS and OSS fid capability.\n");
+		return -EINVAL;
+	}
+
+	spin_lock(&mdt->mdt_lut.lut_flags_lock);
+	mdt->mdt_lut.lut_oss_capa = !!(val & 0x1);
+	mdt->mdt_lut.lut_mds_capa = !!(val & 0x2);
+	spin_unlock(&mdt->mdt_lut.lut_flags_lock);
+	mdt->mdt_capa_conf = 1;
+	LCONSOLE_INFO("MDS %s %s MDS fid capability.\n",
+		      mdt_obd_name(mdt),
+		      mdt->mdt_lut.lut_mds_capa ? "enabled" : "disabled");
+	LCONSOLE_INFO("MDS %s %s OSS fid capability.\n",
+		      mdt_obd_name(mdt),
+		      mdt->mdt_lut.lut_oss_capa ? "enabled" : "disabled");
+	return count;
 }
 
 static int lprocfs_rd_capa_count(char *page, char **start, off_t off,
@@ -603,8 +606,8 @@ static int lprocfs_mdt_wr_evict_client(struct file *file, const char *buffer,
          * bytes into kbuf, to ensure that the string is NUL-terminated.
          * UUID_MAX should include a trailing NUL already.
          */
-        if (cfs_copy_from_user(kbuf, buffer,
-                               min_t(unsigned long, BUFLEN - 1, count))) {
+	if (copy_from_user(kbuf, buffer,
+			   min_t(unsigned long, BUFLEN - 1, count))) {
                 count = -EFAULT;
                 goto out;
         }
@@ -630,7 +633,7 @@ static int lprocfs_rd_sec_level(char *page, char **start, off_t off,
         struct obd_device *obd = data;
         struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
 
-        return snprintf(page, count, "%d\n", mdt->mdt_sec_level);
+	return snprintf(page, count, "%d\n", mdt->mdt_lut.lut_sec_level);
 }
 
 static int lprocfs_wr_sec_level(struct file *file, const char *buffer,
@@ -653,8 +656,8 @@ static int lprocfs_wr_sec_level(struct file *file, const char *buffer,
                 return -EINVAL;
         }
 
-        mdt->mdt_sec_level = val;
-        return count;
+	mdt->mdt_lut.lut_sec_level = val;
+	return count;
 }
 
 static int lprocfs_rd_cos(char *page, char **start, off_t off,
@@ -706,61 +709,61 @@ static int safe_strtoul(const char *str, char **endp, unsigned long *res)
 }
 
 static int lprocfs_wr_root_squash(struct file *file, const char *buffer,
-                                  unsigned long count, void *data)
+				  unsigned long count, void *data)
 {
-        struct obd_device *obd = data;
-        struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
-        int rc;
-        char kernbuf[50], *tmp, *end, *errmsg;
-        unsigned long uid, gid;
-        int nouid, nogid;
-        ENTRY;
-
-        if (count >= sizeof(kernbuf)) {
-                errmsg = "string too long";
-                GOTO(failed, rc = -EINVAL);
-        }
-        if (cfs_copy_from_user(kernbuf, buffer, count)) {
-                errmsg = "bad address";
-                GOTO(failed, rc = -EFAULT);
-        }
-        kernbuf[count] = '\0';
-
-        nouid = nogid = 0;
-        if (safe_strtoul(buffer, &tmp, &uid)) {
-                uid = mdt->mdt_squash_uid;
-                nouid = 1;
-        }
-
-        /* skip ':' */
-        if (*tmp == ':') {
-                tmp++;
-                if (safe_strtoul(tmp, &end, &gid)) {
-                        gid = mdt->mdt_squash_gid;
-                        nogid = 1;
-                }
-        } else {
-                gid = mdt->mdt_squash_gid;
-                nogid = 1;
-        }
-
-        mdt->mdt_squash_uid = uid;
-        mdt->mdt_squash_gid = gid;
-
-        if (nouid && nogid) {
-                errmsg = "needs uid:gid format";
-                GOTO(failed, rc = -EINVAL);
-        }
-
-        LCONSOLE_INFO("%s: root_squash is set to %u:%u\n",
-                      obd->obd_name,
-                      mdt->mdt_squash_uid,  mdt->mdt_squash_gid);
-        RETURN(count);
-
- failed:
-        CWARN("%s: failed to set root_squash to \"%s\", %s: rc %d\n",
-              obd->obd_name, buffer, errmsg, rc);
-        RETURN(rc);
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+	int rc;
+	char kernbuf[50], *tmp, *end, *errmsg;
+	unsigned long uid, gid;
+	int nouid, nogid;
+	ENTRY;
+
+	if (count >= sizeof(kernbuf)) {
+		errmsg = "string too long";
+		GOTO(failed, rc = -EINVAL);
+	}
+	if (copy_from_user(kernbuf, buffer, count)) {
+		errmsg = "bad address";
+		GOTO(failed, rc = -EFAULT);
+	}
+	kernbuf[count] = '\0';
+
+	nouid = nogid = 0;
+	if (safe_strtoul(buffer, &tmp, &uid)) {
+		uid = mdt->mdt_squash_uid;
+		nouid = 1;
+	}
+
+	/* skip ':' */
+	if (*tmp == ':') {
+		tmp++;
+		if (safe_strtoul(tmp, &end, &gid)) {
+			gid = mdt->mdt_squash_gid;
+			nogid = 1;
+		}
+	} else {
+		gid = mdt->mdt_squash_gid;
+		nogid = 1;
+	}
+
+	mdt->mdt_squash_uid = uid;
+	mdt->mdt_squash_gid = gid;
+
+	if (nouid && nogid) {
+		errmsg = "needs uid:gid format";
+		GOTO(failed, rc = -EINVAL);
+	}
+
+	LCONSOLE_INFO("%s: root_squash is set to %u:%u\n",
+		      mdt_obd_name(mdt),
+		      mdt->mdt_squash_uid,  mdt->mdt_squash_gid);
+	RETURN(count);
+
+failed:
+	CWARN("%s: failed to set root_squash to \"%s\", %s: rc %d\n",
+	      mdt_obd_name(mdt), buffer, errmsg, rc);
+	RETURN(rc);
 }
 
 static int lprocfs_rd_nosquash_nids(char *page, char **start, off_t off,
@@ -775,69 +778,69 @@ static int lprocfs_rd_nosquash_nids(char *page, char **start, off_t off,
 }
 
 static int lprocfs_wr_nosquash_nids(struct file *file, const char *buffer,
-                                    unsigned long count, void *data)
+				    unsigned long count, void *data)
 {
-        struct obd_device *obd = data;
-        struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
-        int rc;
-        char *kernbuf, *errmsg;
-        cfs_list_t tmp;
-        ENTRY;
-
-        OBD_ALLOC(kernbuf, count + 1);
-        if (kernbuf == NULL) {
-                errmsg = "no memory";
-                GOTO(failed, rc = -ENOMEM);
-        }
-        if (cfs_copy_from_user(kernbuf, buffer, count)) {
-                errmsg = "bad address";
-                GOTO(failed, rc = -EFAULT);
-        }
-        kernbuf[count] = '\0';
-
-        if (!strcmp(kernbuf, "NONE") || !strcmp(kernbuf, "clear")) {
-                /* empty string is special case */
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+	int rc;
+	char *kernbuf, *errmsg;
+	cfs_list_t tmp;
+	ENTRY;
+
+	OBD_ALLOC(kernbuf, count + 1);
+	if (kernbuf == NULL) {
+		errmsg = "no memory";
+		GOTO(failed, rc = -ENOMEM);
+	}
+	if (copy_from_user(kernbuf, buffer, count)) {
+		errmsg = "bad address";
+		GOTO(failed, rc = -EFAULT);
+	}
+	kernbuf[count] = '\0';
+
+	if (!strcmp(kernbuf, "NONE") || !strcmp(kernbuf, "clear")) {
+		/* empty string is special case */
 		down_write(&mdt->mdt_squash_sem);
-                if (!cfs_list_empty(&mdt->mdt_nosquash_nids)) {
-                        cfs_free_nidlist(&mdt->mdt_nosquash_nids);
-                        OBD_FREE(mdt->mdt_nosquash_str,
-                                 mdt->mdt_nosquash_strlen);
-                        mdt->mdt_nosquash_str = NULL;
-                        mdt->mdt_nosquash_strlen = 0;
-                }
+		if (!cfs_list_empty(&mdt->mdt_nosquash_nids)) {
+			cfs_free_nidlist(&mdt->mdt_nosquash_nids);
+			OBD_FREE(mdt->mdt_nosquash_str,
+				 mdt->mdt_nosquash_strlen);
+			mdt->mdt_nosquash_str = NULL;
+			mdt->mdt_nosquash_strlen = 0;
+		}
 		up_write(&mdt->mdt_squash_sem);
-                LCONSOLE_INFO("%s: nosquash_nids is cleared\n",
-                              obd->obd_name);
-                OBD_FREE(kernbuf, count + 1);
-                RETURN(count);
-        }
-
-        CFS_INIT_LIST_HEAD(&tmp);
-        if (cfs_parse_nidlist(kernbuf, count, &tmp) <= 0) {
-                errmsg = "can't parse";
-                GOTO(failed, rc = -EINVAL);
-        }
+		LCONSOLE_INFO("%s: nosquash_nids is cleared\n",
+			      mdt_obd_name(mdt));
+		OBD_FREE(kernbuf, count + 1);
+		RETURN(count);
+	}
+
+	CFS_INIT_LIST_HEAD(&tmp);
+	if (cfs_parse_nidlist(kernbuf, count, &tmp) <= 0) {
+		errmsg = "can't parse";
+		GOTO(failed, rc = -EINVAL);
+	}
 
 	down_write(&mdt->mdt_squash_sem);
-        if (!cfs_list_empty(&mdt->mdt_nosquash_nids)) {
-                cfs_free_nidlist(&mdt->mdt_nosquash_nids);
-                OBD_FREE(mdt->mdt_nosquash_str, mdt->mdt_nosquash_strlen);
-        }
-        mdt->mdt_nosquash_str = kernbuf;
-        mdt->mdt_nosquash_strlen = count + 1;
-        cfs_list_splice(&tmp, &mdt->mdt_nosquash_nids);
-
-        LCONSOLE_INFO("%s: nosquash_nids is set to %s\n",
-                      obd->obd_name, kernbuf);
+	if (!cfs_list_empty(&mdt->mdt_nosquash_nids)) {
+		cfs_free_nidlist(&mdt->mdt_nosquash_nids);
+		OBD_FREE(mdt->mdt_nosquash_str, mdt->mdt_nosquash_strlen);
+	}
+	mdt->mdt_nosquash_str = kernbuf;
+	mdt->mdt_nosquash_strlen = count + 1;
+	cfs_list_splice(&tmp, &mdt->mdt_nosquash_nids);
+
+	LCONSOLE_INFO("%s: nosquash_nids is set to %s\n",
+		      mdt_obd_name(mdt), kernbuf);
 	up_write(&mdt->mdt_squash_sem);
-        RETURN(count);
-
- failed:
-        CWARN("%s: failed to set nosquash_nids to \"%s\", %s: rc %d\n",
-              obd->obd_name, kernbuf, errmsg, rc);
-        if (kernbuf)
-                OBD_FREE(kernbuf, count + 1);
-        RETURN(rc);
+	RETURN(count);
+
+failed:
+	CWARN("%s: failed to set nosquash_nids to \"%s\", %s: rc %d\n",
+	      mdt_obd_name(mdt), kernbuf, errmsg, rc);
+	if (kernbuf)
+		OBD_FREE(kernbuf, count + 1);
+	RETURN(rc);
 }
 
 static int lprocfs_rd_mdt_som(char *page, char **start, off_t off,
@@ -862,7 +865,7 @@ static int lprocfs_wr_mdt_som(struct file *file, const char *buffer,
         if (count > (sizeof(kernbuf) - 1))
                 return -EINVAL;
 
-        if (cfs_copy_from_user(kernbuf, buffer, count))
+	if (copy_from_user(kernbuf, buffer, count))
                 return -EFAULT;
 
         kernbuf[count] = '\0';
@@ -885,8 +888,8 @@ static int lprocfs_wr_mdt_som(struct file *file, const char *buffer,
         cfs_list_for_each_entry(exp, &obd->obd_exports, exp_obd_chain) {
                 if (exp == obd->obd_self_export)
                         continue;
-                if (exp->exp_connect_flags & OBD_CONNECT_MDS_MDS)
-                        continue;
+		if (exp_connect_flags(exp) & OBD_CONNECT_MDS_MDS)
+			continue;
                 /* Some clients are already connected, skip the change */
                 LCONSOLE_INFO("%s is already connected, SOM will be %s on "
                               "the next mount\n", exp->exp_client_uuid.uuid,
@@ -900,54 +903,6 @@ static int lprocfs_wr_mdt_som(struct file *file, const char *buffer,
         return count;
 }
 
-/* Temporary; for testing purposes only */
-static int lprocfs_mdt_wr_mdc(struct file *file, const char *buffer,
-                              unsigned long count, void *data)
-{
-        struct obd_device *obd = data;
-        struct obd_export *exp = NULL;
-        struct obd_uuid   *uuid;
-        char              *kbuf;
-        char              *tmpbuf;
-
-        OBD_ALLOC(kbuf, UUID_MAX);
-        if (kbuf == NULL)
-                return -ENOMEM;
-
-        /*
-         * OBD_ALLOC() will zero kbuf, but we only copy UUID_MAX - 1
-         * bytes into kbuf, to ensure that the string is NUL-terminated.
-         * UUID_MAX should include a trailing NUL already.
-         */
-        if (cfs_copy_from_user(kbuf, buffer,
-                               min_t(unsigned long, UUID_MAX - 1, count))) {
-                count = -EFAULT;
-                goto out;
-        }
-        tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, UUID_MAX - 1, count));
-
-        OBD_ALLOC(uuid, UUID_MAX);
-        if (uuid == NULL) {
-                count = -ENOMEM;
-                goto out;
-        }
-
-        obd_str2uuid(uuid, tmpbuf);
-        exp = cfs_hash_lookup(obd->obd_uuid_hash, uuid);
-        if (exp == NULL) {
-                CERROR("%s: no export %s found\n",
-                       obd->obd_name, obd_uuid2str(uuid));
-        } else {
-                mdt_hsm_copytool_send(exp);
-                class_export_put(exp);
-        }
-
-        OBD_FREE(uuid, UUID_MAX);
-out:
-        OBD_FREE(kbuf, UUID_MAX);
-        return count;
-}
-
 static int lprocfs_rd_enable_remote_dir(char *page, char **start, off_t off,
 					int count, int *eof, void *data)
 {
@@ -969,57 +924,114 @@ static int lprocfs_wr_enable_remote_dir(struct file *file, const char *buffer,
 	if (rc)
 		return rc;
 
-	if (val < 0 || val > 1)
+	if (val > 1)
 		return -ERANGE;
 
 	mdt->mdt_enable_remote_dir = val;
 	return count;
 }
 
+static int lprocfs_rd_enable_remote_dir_gid(char *page, char **start, off_t off,
+					    int count, int *eof, void *data)
+{
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+
+	return snprintf(page, count, "%d\n",
+			(int)mdt->mdt_enable_remote_dir_gid);
+}
+
+static int lprocfs_wr_enable_remote_dir_gid(struct file *file,
+					    const char *buffer,
+					    unsigned long count, void *data)
+{
+	struct obd_device *obd = data;
+	struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+	__u32 val;
+	int rc;
+
+	rc = lprocfs_write_helper(buffer, count, &val);
+	if (rc)
+		return rc;
+
+	mdt->mdt_enable_remote_dir_gid = val;
+	return count;
+}
+
 static struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
-        { "uuid",                       lprocfs_rd_uuid,                 0, 0 },
-        { "recovery_status",            lprocfs_obd_rd_recovery_status,  0, 0 },
-        { "num_exports",                lprocfs_rd_num_exports,          0, 0 },
-        { "identity_expire",            lprocfs_rd_identity_expire,
-                                        lprocfs_wr_identity_expire,         0 },
-        { "identity_acquire_expire",    lprocfs_rd_identity_acquire_expire,
-                                        lprocfs_wr_identity_acquire_expire, 0 },
-        { "identity_upcall",            lprocfs_rd_identity_upcall,
-                                        lprocfs_wr_identity_upcall,         0 },
-        { "identity_flush",             0, lprocfs_wr_identity_flush,       0 },
-        { "identity_info",              0, lprocfs_wr_identity_info,        0 },
-        { "capa",                       lprocfs_rd_capa,
-                                        lprocfs_wr_capa,                    0 },
-        { "capa_timeout",               lprocfs_rd_capa_timeout,
-                                        lprocfs_wr_capa_timeout,            0 },
-        { "capa_key_timeout",           lprocfs_rd_ck_timeout,
-                                        lprocfs_wr_ck_timeout,              0 },
-        { "capa_count",                 lprocfs_rd_capa_count,           0, 0 },
-        { "site_stats",                 lprocfs_rd_site_stats,           0, 0 },
-        { "evict_client",               0, lprocfs_mdt_wr_evict_client,     0 },
-        { "hash_stats",                 lprocfs_obd_rd_hash,    0, 0 },
-        { "sec_level",                  lprocfs_rd_sec_level,
-                                        lprocfs_wr_sec_level,               0 },
-        { "commit_on_sharing",          lprocfs_rd_cos, lprocfs_wr_cos, 0 },
-        { "root_squash",                lprocfs_rd_root_squash,
-                                        lprocfs_wr_root_squash,             0 },
-        { "nosquash_nids",              lprocfs_rd_nosquash_nids,
-                                        lprocfs_wr_nosquash_nids,           0 },
-        { "som",                        lprocfs_rd_mdt_som,
-                                        lprocfs_wr_mdt_som, 0 },
-        { "mdccomm",                    0, lprocfs_mdt_wr_mdc,              0 },
-        { "instance",                   lprocfs_target_rd_instance,         0 },
-        { "ir_factor",                  lprocfs_obd_rd_ir_factor,
-                                        lprocfs_obd_wr_ir_factor,           0 },
+	{ "uuid",			lprocfs_rd_uuid, NULL,
+					NULL, NULL, 0 },
+	{ "recovery_status",		lprocfs_obd_rd_recovery_status, NULL,
+					NULL, NULL, 0 },
+	{ "num_exports",		lprocfs_rd_num_exports,	NULL,
+					NULL, NULL, 0 },
+	{ "identity_expire",		lprocfs_rd_identity_expire,
+					lprocfs_wr_identity_expire,
+					NULL, NULL, 0 },
+	{ "identity_acquire_expire",    lprocfs_rd_identity_acquire_expire,
+					lprocfs_wr_identity_acquire_expire,
+					NULL, NULL, 0 },
+	{ "identity_upcall",		lprocfs_rd_identity_upcall,
+					lprocfs_wr_identity_upcall,
+					NULL, NULL, 0 },
+	{ "identity_flush",		NULL, lprocfs_wr_identity_flush,
+					NULL, NULL, 0 },
+	{ "identity_info",		NULL, lprocfs_wr_identity_info,
+					NULL, NULL, 0 },
+	{ "capa",			lprocfs_rd_capa,
+					lprocfs_wr_capa,
+					NULL, NULL, 0 },
+	{ "capa_timeout",		lprocfs_rd_capa_timeout,
+					lprocfs_wr_capa_timeout,
+					NULL, NULL, 0 },
+	{ "capa_key_timeout",		lprocfs_rd_ck_timeout,
+					lprocfs_wr_ck_timeout,
+					NULL, NULL, 0 },
+	{ "capa_count",			lprocfs_rd_capa_count, NULL,
+					NULL, NULL, 0 },
+	{ "site_stats",			lprocfs_rd_site_stats, NULL,
+					NULL, NULL, 0 },
+	{ "evict_client",		NULL, lprocfs_mdt_wr_evict_client,
+					NULL, NULL, 0 },
+	{ "hash_stats",			lprocfs_obd_rd_hash, NULL,
+					NULL, NULL, 0 },
+	{ "sec_level",			lprocfs_rd_sec_level,
+					lprocfs_wr_sec_level,
+					NULL, NULL, 0 },
+	{ "commit_on_sharing",		lprocfs_rd_cos, lprocfs_wr_cos,
+					NULL, NULL, 0 },
+	{ "root_squash",		lprocfs_rd_root_squash,
+					lprocfs_wr_root_squash,
+					NULL, NULL, 0 },
+	{ "nosquash_nids",		lprocfs_rd_nosquash_nids,
+					lprocfs_wr_nosquash_nids,
+					NULL, NULL, 0 },
+	{ "som",			lprocfs_rd_mdt_som,
+					lprocfs_wr_mdt_som,
+					NULL, NULL, 0 },
+	{ "instance",			lprocfs_target_rd_instance, NULL,
+					NULL, NULL, 0},
+	{ "ir_factor",			lprocfs_obd_rd_ir_factor,
+					lprocfs_obd_wr_ir_factor,
+					NULL, NULL, 0 },
 	{ "job_cleanup_interval",       lprocfs_rd_job_interval,
-					lprocfs_wr_job_interval, 0 },
+					lprocfs_wr_job_interval,
+					NULL, NULL, 0 },
 	{ "enable_remote_dir",		lprocfs_rd_enable_remote_dir,
-					lprocfs_wr_enable_remote_dir,	    0},
-        { 0 }
+					lprocfs_wr_enable_remote_dir,
+					NULL, NULL, 0},
+	{ "enable_remote_dir_gid",	lprocfs_rd_enable_remote_dir_gid,
+					lprocfs_wr_enable_remote_dir_gid,
+					NULL, NULL, 0},
+	{ "hsm_control",		lprocfs_rd_hsm_cdt_control,
+					lprocfs_wr_hsm_cdt_control,
+					NULL, NULL, 0 },
+	{ 0 }
 };
 
 static struct lprocfs_vars lprocfs_mdt_module_vars[] = {
-        { "num_refs",                   lprocfs_rd_numrefs,              0, 0 },
+	{ "num_refs",			lprocfs_rd_numrefs, NULL,
+					NULL, NULL, 0 },
         { 0 }
 };
 
@@ -1030,25 +1042,78 @@ void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
 }
 
 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
-	{ "uuid",	 lprocfs_rd_uuid,	0, 0 },
+	{ "uuid",	lprocfs_rd_uuid, NULL, NULL, NULL, 0 },
 	{ 0 }
 };
 
 struct lprocfs_vars lprocfs_mds_module_vars[] = {
-	{ "num_refs",     lprocfs_rd_numrefs,     0, 0 },
+	{ "num_refs",	lprocfs_rd_numrefs, NULL, NULL, NULL, 0 },
 	{ 0 }
 };
 
+int lprocfs_mdt_print_open_files(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+				 cfs_hlist_node_t *hnode, void *v)
+{
+	struct obd_export	*exp = cfs_hash_object(hs, hnode);
+	struct seq_file		*seq = v;
+
+	if (exp->exp_lock_hash != NULL) {
+		struct mdt_export_data  *med = &exp->exp_mdt_data;
+		struct mdt_file_data	*mfd;
+
+		spin_lock(&med->med_open_lock);
+		cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
+			seq_printf(seq, DFID"\n",
+				   PFID(mdt_object_fid(mfd->mfd_object)));
+		}
+		spin_unlock(&med->med_open_lock);
+	}
+
+	return 0;
+}
+
+int lprocfs_mdt_open_files_seq_show(struct seq_file *seq, void *v)
+{
+	struct nid_stat *stats = seq->private;
+	struct obd_device *obd = stats->nid_obd;
+
+	cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
+			      lprocfs_mdt_print_open_files, seq);
+
+	return 0;
+}
+
+int lprocfs_mdt_open_files_seq_open(struct inode *inode, struct file *file)
+{
+	struct proc_dir_entry	*dp = PDE(inode);
+	struct seq_file		*seq;
+	struct nid_stat		*tmp;
+	int			rc;
+
+	if (LPROCFS_ENTRY_CHECK(dp))
+		return -ENOENT;
+
+	tmp = dp->data;
+	rc = single_open(file, &lprocfs_mdt_open_files_seq_show, NULL);
+	if (rc != 0)
+		return rc;
+
+	seq = file->private_data;
+	seq->private = tmp;
+
+	return 0;
+}
+
 void mdt_counter_incr(struct ptlrpc_request *req, int opcode)
 {
 	struct obd_export *exp = req->rq_export;
 
-	if (exp->exp_obd && exp->exp_obd->md_stats)
-		lprocfs_counter_incr(exp->exp_obd->md_stats, opcode);
+	if (exp->exp_obd && exp->exp_obd->obd_md_stats)
+		lprocfs_counter_incr(exp->exp_obd->obd_md_stats, opcode);
 	if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
 		lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);
 	if (exp->exp_obd && exp->exp_obd->u.obt.obt_jobstats.ojs_hash &&
-	    (exp->exp_connect_flags & OBD_CONNECT_JOBSTATS))
+	    (exp_connect_flags(exp) & OBD_CONNECT_JOBSTATS))
 		lprocfs_job_stats_log(exp->exp_obd,
 				      lustre_msg_get_jobid(req->rq_reqmsg),
 				      opcode, 1);