Whamcloud - gitweb
b=18857
[fs/lustre-release.git] / lustre / llite / llite_lib.c
index 6d37983..83a131e 100644 (file)
@@ -1,24 +1,41 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- * Lustre Light Super operations
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *  Copyright (c) 2002-2005 Cluster File Systems, Inc.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  *
- *   Lustre is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/llite/llite_lib.c
+ *
+ * Lustre Light Super operations
  */
 
 #define DEBUG_SUBSYSTEM S_LLITE
@@ -27,6 +44,7 @@
 #include <linux/types.h>
 #include <linux/random.h>
 #include <linux/version.h>
+#include <linux/mm.h>
 
 #include <lustre_lite.h>
 #include <lustre_ha.h>
@@ -35,6 +53,8 @@
 #include <lustre_disk.h>
 #include <lustre_param.h>
 #include <lustre_log.h>
+#include <cl_object.h>
+#include <obd_cksum.h>
 #include "llite_internal.h"
 
 cfs_mem_cache_t *ll_file_data_slab;
@@ -49,10 +69,11 @@ extern struct address_space_operations ll_dir_aops;
 #define log2(n) ffz(~(n))
 #endif
 
-
 static struct ll_sb_info *ll_init_sbi(void)
 {
         struct ll_sb_info *sbi = NULL;
+        unsigned long pages;
+        struct sysinfo si;
         class_uuid_t uuid;
         int i;
         ENTRY;
@@ -66,22 +87,30 @@ static struct ll_sb_info *ll_init_sbi(void)
         spin_lock_init(&sbi->ll_pp_extent_lock);
         spin_lock_init(&sbi->ll_process_lock);
         sbi->ll_rw_stats_on = 0;
-        INIT_LIST_HEAD(&sbi->ll_pglist);
-        if (num_physpages >> (20 - CFS_PAGE_SHIFT) < 512)
-                sbi->ll_async_page_max = num_physpages / 2;
-        else
-                sbi->ll_async_page_max = (num_physpages / 4) * 3;
-        sbi->ll_ra_info.ra_max_pages = min(num_physpages / 8,
+
+        si_meminfo(&si);
+        pages = si.totalram - si.totalhigh;
+        if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
+#ifdef HAVE_BGL_SUPPORT
+                sbi->ll_async_page_max = pages / 4;
+#else
+                sbi->ll_async_page_max = pages / 2;
+#endif
+        } else {
+                sbi->ll_async_page_max = (pages / 4) * 3;
+        }
+
+        sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
                                            SBI_DEFAULT_READAHEAD_MAX);
+        sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
         sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
                                            SBI_DEFAULT_READAHEAD_WHOLE_MAX;
-
         INIT_LIST_HEAD(&sbi->ll_conn_chain);
         INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
 
         ll_generate_random_uuid(uuid);
         class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
-        CDEBUG(D_HA, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
+        CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
 
         spin_lock(&ll_sb_lock);
         list_add_tail(&sbi->ll_list, &ll_super_blocks);
@@ -91,6 +120,10 @@ static struct ll_sb_info *ll_init_sbi(void)
         sbi->ll_flags |= LL_SBI_CHECKSUM;
 #endif
 
+#ifdef HAVE_LRU_RESIZE_SUPPORT
+        sbi->ll_flags |= LL_SBI_LRU_RESIZE;
+#endif
+
 #ifdef HAVE_EXPORT___IGET
         INIT_LIST_HEAD(&sbi->ll_deathrow);
         spin_lock_init(&sbi->ll_deathrow_lock);
@@ -100,6 +133,9 @@ static struct ll_sb_info *ll_init_sbi(void)
                 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].pp_w_hist.oh_lock);
         }
 
+        /* metadata statahead is enabled by default */
+        sbi->ll_sa_max = LL_SA_RPC_DEF;
+
         RETURN(sbi);
 }
 
@@ -118,58 +154,22 @@ void ll_free_sbi(struct super_block *sb)
 }
 
 static struct dentry_operations ll_d_root_ops = {
-#ifdef LUSTRE_KERNEL_VERSION
+#ifdef DCACHE_LUSTRE_INVALID
         .d_compare = ll_dcompare,
 #endif
+        .d_revalidate = ll_revalidate_nd,
 };
 
-/* Initialize the default and maximum LOV EA and cookie sizes.  This allows
- * us to make MDS RPCs with large enough reply buffers to hold the
- * maximum-sized (= maximum striped) EA and cookie without having to
- * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
-static int ll_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp)
-{
-        struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC };
-        __u32 valsize = sizeof(struct lov_desc);
-        int rc, easize, def_easize, cookiesize;
-        struct lov_desc desc;
-        __u32 stripes;
-        ENTRY;
-
-        rc = obd_get_info(dt_exp, strlen(KEY_LOVDESC) + 1, KEY_LOVDESC,
-                          &valsize, &desc);
-        if (rc)
-                RETURN(rc);
-
-        stripes = min(desc.ld_tgt_count, (__u32)LOV_MAX_STRIPE_COUNT);
-        lsm.lsm_stripe_count = stripes;
-        easize = obd_size_diskmd(dt_exp, &lsm);
-
-        lsm.lsm_stripe_count = desc.ld_default_stripe_count;
-        def_easize = obd_size_diskmd(dt_exp, &lsm);
-
-        cookiesize = stripes * sizeof(struct llog_cookie);
-
-        CDEBUG(D_HA, "updating max_mdsize/max_cookiesize: %d/%d\n",
-               easize, cookiesize);
-
-        rc = md_init_ea_size(md_exp, easize, def_easize, cookiesize);
-        RETURN(rc);
-}
-
-static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
-                                    uid_t nllu, gid_t nllg)
+static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
 {
         struct inode *root = 0;
         struct ll_sb_info *sbi = ll_s2sbi(sb);
         struct obd_device *obd;
-        struct lu_fid rootfid;
         struct obd_capa *oc = NULL;
         struct obd_statfs osfs;
         struct ptlrpc_request *request = NULL;
-        struct lustre_handle dt_conn = {0, };
-        struct lustre_handle md_conn = {0, };
         struct obd_connect_data *data = NULL;
+        struct obd_uuid *uuid;
         struct lustre_md lmd;
         obd_valid valid;
         int size, err, checksum;
@@ -189,17 +189,21 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
                                                   dt, md);
                 if (err < 0)
-                        CERROR("could not register mount in /proc/lustre");
+                        CERROR("could not register mount in /proc/fs/lustre\n");
         }
 
         /* indicate the features supported by this client */
-        data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
-                                  OBD_CONNECT_JOIN |
-                                  OBD_CONNECT_ATTRFID | OBD_CONNECT_VERSION |
-                                  OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA |
-                                  OBD_CONNECT_CANCELSET;
+        data->ocd_connect_flags = OBD_CONNECT_IBITS    | OBD_CONNECT_NODEVOH  |
+                                  OBD_CONNECT_JOIN     | OBD_CONNECT_ATTRFID  |
+                                  OBD_CONNECT_VERSION  | OBD_CONNECT_MDS_CAPA |
+                                  OBD_CONNECT_OSS_CAPA | OBD_CONNECT_CANCELSET|
+                                  OBD_CONNECT_FID      | OBD_CONNECT_AT |
+                                  OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
+                                  OBD_CONNECT_VBR      | OBD_CONNECT_SOM;
+
 #ifdef HAVE_LRU_RESIZE_SUPPORT
-        data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
+        if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
+                data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
 #endif
 #ifdef CONFIG_FS_POSIX_ACL
         data->ocd_connect_flags |= OBD_CONNECT_ACL;
@@ -216,7 +220,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
         /* force vfs to use lustre handler for flock() calls - bug 10743 */
         sb->s_flags |= MS_FLOCK_LOCK;
 #endif
-        
+
         if (sbi->ll_flags & LL_SBI_FLOCK)
                 sbi->ll_fop = &ll_file_operations_flock;
         else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
@@ -226,17 +230,10 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 
         /* real client */
         data->ocd_connect_flags |= OBD_CONNECT_REAL;
-        if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-                data->ocd_connect_flags &= ~OBD_CONNECT_LCL_CLIENT;
-                data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT;
-        } else {
-                data->ocd_connect_flags &= ~OBD_CONNECT_RMT_CLIENT;
-                data->ocd_connect_flags |= OBD_CONNECT_LCL_CLIENT;
-        }
-        data->ocd_nllu = nllu;
-        data->ocd_nllg = nllg;
+        if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
+                data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
 
-        err = obd_connect(NULL, &md_conn, obd, &sbi->ll_sb_uuid, data);
+        err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
         if (err == -EBUSY) {
                 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
                                    "recovery, of which this client is not a "
@@ -247,7 +244,6 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 CERROR("cannot connect to %s: rc = %d\n", md, err);
                 GOTO(out, err);
         }
-        sbi->ll_md_exp = class_conn2export(&md_conn);
 
         err = obd_fid_init(sbi->ll_md_exp);
         if (err) {
@@ -256,13 +252,13 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 GOTO(out_md, err);
         }
 
-        err = obd_statfs(obd, &osfs, cfs_time_current_64() - HZ);
+        err = obd_statfs(obd, &osfs, cfs_time_current_64() - HZ, 0);
         if (err)
                 GOTO(out_md_fid, err);
 
         size = sizeof(*data);
-        err = obd_get_info(sbi->ll_md_exp, strlen(KEY_CONN_DATA),
-                           KEY_CONN_DATA,  &size, data);
+        err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
+                           KEY_CONN_DATA,  &size, data, NULL);
         if (err) {
                 CERROR("Get connect data failed: %d \n", err);
                 GOTO(out_md, err);
@@ -312,21 +308,16 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
         if (data->ocd_connect_flags & OBD_CONNECT_JOIN)
                 sbi->ll_flags |= LL_SBI_JOIN;
 
-        if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-                if (!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT)) {
-                        /* sometimes local client claims to be remote, but mdt
-                         * will disagree when client gss not applied. */
-                        LCONSOLE_INFO("client claims to be remote, but server "
-                                      "rejected, forced to be local.\n");
-                        sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
+        if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
+                if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
+                        sbi->ll_flags |= LL_SBI_RMT_CLIENT;
+                        LCONSOLE_INFO("client is set as remote by default.\n");
                 }
         } else {
-                if (!(data->ocd_connect_flags & OBD_CONNECT_LCL_CLIENT)) {
-                        /* with gss applied, remote client can not claim to be
-                         * local, so mdt maybe force client to be remote. */
-                        LCONSOLE_INFO("client claims to be local, but server "
-                                      "rejected, forced to be remote.\n");
-                        sbi->ll_flags |= LL_SBI_RMT_CLIENT;
+                if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
+                        sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
+                        LCONSOLE_INFO("client claims to be remote, but server "
+                                      "rejected, forced to be local.\n");
                 }
         }
 
@@ -340,43 +331,49 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 sbi->ll_flags |= LL_SBI_OSS_CAPA;
         }
 
-        sbi->ll_sdev_orig = sb->s_dev;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-        /* We set sb->s_dev equal on all lustre clients in order to support
-         * NFS export clustering.  NFSD requires that the FSID be the same
-         * on all clients. */
-        /* s_dev is also used in lt_compare() to compare two fs, but that is
-         * only a node-local comparison. */
-
-        /* XXX: this will not work with LMV */
-        sb->s_dev = get_uuid2int(sbi2mdc(sbi)->cl_target_uuid.uuid,
-                                 strlen(sbi2mdc(sbi)->cl_target_uuid.uuid));
-#endif
-
         obd = class_name2obd(dt);
         if (!obd) {
                 CERROR("DT %s: not setup or attached\n", dt);
                 GOTO(out_md_fid, err = -ENODEV);
         }
 
-        data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
+        data->ocd_connect_flags = OBD_CONNECT_GRANT     | OBD_CONNECT_VERSION  |
                                   OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
-                                  OBD_CONNECT_CANCELSET;
-        if (sbi->ll_flags & LL_SBI_OSS_CAPA)
-                data->ocd_connect_flags |= OBD_CONNECT_OSS_CAPA;
+                                  OBD_CONNECT_CANCELSET | OBD_CONNECT_FID      |
+                                  OBD_CONNECT_SRVLOCK   | OBD_CONNECT_TRUNCLOCK|
+                                  OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
+                                  OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
+                                  OBD_CONNECT_SOM;
+
+        if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
+                /* OBD_CONNECT_CKSUM should always be set, even if checksums are
+                 * disabled by default, because it can still be enabled on the
+                 * fly via /proc. As a consequence, we still need to come to an
+                 * agreement on the supported algorithms at connect time */
+                data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
+
+                if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
+                        data->ocd_cksum_types = OBD_CKSUM_ADLER;
+                else
+                        /* send the list of supported checksum types */
+                        data->ocd_cksum_types = OBD_CKSUM_ALL;
+        }
 
 #ifdef HAVE_LRU_RESIZE_SUPPORT
         data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
 #endif
+        if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
+                data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
+
         CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
                "ocd_grant: %d\n", data->ocd_connect_flags,
                data->ocd_version, data->ocd_grant);
 
         obd->obd_upcall.onu_owner = &sbi->ll_lco;
-        obd->obd_upcall.onu_upcall = ll_ocd_update;
+        obd->obd_upcall.onu_upcall = cl_ocd_update;
         data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
 
-        err = obd_connect(NULL, &dt_conn, obd, &sbi->ll_sb_uuid, data);
+        err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
         if (err == -EBUSY) {
                 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
                                    "recovery, of which this client is not a "
@@ -388,52 +385,33 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 GOTO(out_md_fid, err);
         }
 
-        sbi->ll_dt_exp = class_conn2export(&dt_conn);
-
         err = obd_fid_init(sbi->ll_dt_exp);
         if (err) {
                 CERROR("Can't init data layer FID infrastructure, "
                        "rc %d\n", err);
                 GOTO(out_dt, err);
         }
-        
+
         spin_lock(&sbi->ll_lco.lco_lock);
         sbi->ll_lco.lco_flags = data->ocd_connect_flags;
+        sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
+        sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
         spin_unlock(&sbi->ll_lco.lco_lock);
 
-        ll_init_ea_size(sbi->ll_md_exp, sbi->ll_dt_exp);
-
-        err = obd_prep_async_page(sbi->ll_dt_exp, NULL, NULL, NULL,
-                                  0, NULL, NULL, NULL);
-        if (err < 0) {
-                LCONSOLE_ERROR_MSG(0x151, "There are no OST's in this "
-                                   "filesystem. There must be at least one "
-                                   "active OST for a client to start.\n");
-                GOTO(out_dt_fid, err);
-        }
-
-        if (!ll_async_page_slab) {
-                ll_async_page_slab_size =
-                        size_round(sizeof(struct ll_async_page)) + err;
-                ll_async_page_slab = cfs_mem_cache_create("ll_async_page",
-                                                        ll_async_page_slab_size,
-                                                           0, 0);
-                if (!ll_async_page_slab)
-                        GOTO(out_dt_fid, err = -ENOMEM);
-        }
-
-        err = md_getstatus(sbi->ll_md_exp, &rootfid, &oc);
+        fid_zero(&sbi->ll_root_fid);
+        err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
         if (err) {
                 CERROR("cannot mds_connect: rc = %d\n", err);
-                GOTO(out_dt_fid, err);
+                GOTO(out_lock_cn_cb, err);
         }
-        CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&rootfid));
-        sbi->ll_root_fid = rootfid;
+        if (!fid_is_sane(&sbi->ll_root_fid)) {
+                CERROR("Invalid root fid during mount\n");
+                GOTO(out_lock_cn_cb, err = -EINVAL);
+        }
+        CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
 
         sb->s_op = &lustre_super_operations;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
         sb->s_export_op = &lustre_export_operations;
-#endif
 
         /* make root inode
          * XXX: move this to after cbd setup? */
@@ -443,21 +421,21 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
         else if (sbi->ll_flags & LL_SBI_ACL)
                 valid |= OBD_MD_FLACL;
 
-        err = md_getattr(sbi->ll_md_exp, &rootfid, oc, valid, 0, &request);
+        err = md_getattr(sbi->ll_md_exp, &sbi->ll_root_fid, oc, valid, 0,
+                         &request);
         if (oc)
-                free_capa(oc);
+                capa_put(oc);
         if (err) {
                 CERROR("md_getattr failed for root: rc = %d\n", err);
-                GOTO(out_dt_fid, err);
+                GOTO(out_lock_cn_cb, err);
         }
         memset(&lmd, 0, sizeof(lmd));
-        err = md_get_lustre_md(sbi->ll_md_exp, request, 
-                               REPLY_REC_OFF, sbi->ll_dt_exp, sbi->ll_md_exp, 
-                               &lmd);
+        err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
+                               sbi->ll_md_exp, &lmd);
         if (err) {
                 CERROR("failed to understand root inode md: rc = %d\n", err);
                 ptlrpc_req_finished (request);
-                GOTO(out_dt_fid, err);
+                GOTO(out_lock_cn_cb, err);
         }
 
         LASSERT(fid_is_sane(&sbi->ll_root_fid));
@@ -465,7 +443,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
         md_free_lustre_md(sbi->ll_md_exp, &lmd);
         ptlrpc_req_finished(request);
 
-        if (root == NULL || is_bad_inode(root)) {
+        if (root == NULL || IS_ERR(root)) {
                 if (lmd.lsm)
                         obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
 #ifdef CONFIG_FS_POSIX_ACL
@@ -474,8 +452,10 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                         lmd.posix_acl = NULL;
                 }
 #endif
+                err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
+                root = NULL;
                 CERROR("lustre_lite: bad iget4 for root\n");
-                GOTO(out_root, err = -EBADF);
+                GOTO(out_root, err);
         }
 
         err = ll_close_thread_start(&sbi->ll_lcq);
@@ -484,28 +464,41 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 GOTO(out_root, err);
         }
 
-        checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
-        err = obd_set_info_async(sbi->ll_dt_exp, strlen("checksum"),"checksum",
-                                 sizeof(checksum), &checksum, NULL);
-
-        /* making vm readahead 0 for 2.4.x. In the case of 2.6.x,
-           backing dev info assigned to inode mapping is used for
-           determining maximal readahead. */
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) && \
-    !defined(KERNEL_HAS_AS_MAX_READAHEAD)
-        /* bug 2805 - set VM readahead to zero */
-        vm_max_readahead = vm_min_readahead = 0;
+#ifdef CONFIG_FS_POSIX_ACL
+        if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
+                rct_init(&sbi->ll_rct);
+                et_init(&sbi->ll_et);
+        }
 #endif
 
+        checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
+        err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
+                                 KEY_CHECKSUM, sizeof(checksum), &checksum,
+                                 NULL);
+        cl_sb_init(sb);
+
         sb->s_root = d_alloc_root(root);
         if (data != NULL)
                 OBD_FREE(data, sizeof(*data));
+
         sb->s_root->d_op = &ll_d_root_ops;
+
+        sbi->ll_sdev_orig = sb->s_dev;
+
+        /* We set sb->s_dev equal on all lustre clients in order to support
+         * NFS export clustering.  NFSD requires that the FSID be the same
+         * on all clients. */
+        /* s_dev is also used in lt_compare() to compare two fs, but that is
+         * only a node-local comparison. */
+        uuid = obd_get_uuid(sbi->ll_md_exp);
+        if (uuid != NULL)
+                sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
+
         RETURN(err);
 out_root:
         if (root)
                 iput(root);
-out_dt_fid:
+out_lock_cn_cb:
         obd_fid_fini(sbi->ll_dt_exp);
 out_dt:
         obd_disconnect(sbi->ll_dt_exp);
@@ -528,8 +521,8 @@ int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
 
         *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
         size = sizeof(int);
-        rc = obd_get_info(sbi->ll_md_exp, strlen("max_easize"), "max_easize",
-                          &size, lmmsize);
+        rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
+                          KEY_MAX_EASIZE, &size, lmmsize, NULL);
         if (rc)
                 CERROR("Get max mdsize error rc %d \n", rc);
 
@@ -539,16 +532,26 @@ int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
 void ll_dump_inode(struct inode *inode)
 {
         struct list_head *tmp;
+        struct dentry *dentry;
         int dentry_count = 0;
 
         LASSERT(inode != NULL);
+        CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u state %lx\n",
+               inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
+               inode->i_mode, atomic_read(&inode->i_count), inode->i_state);
+
+        list_for_each(tmp, &inode->i_dentry) {
+                dentry = list_entry(tmp, struct dentry, d_alias);
+                CERROR("Alias[%d] dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u, "
+                       "flags=0x%x, fsdata=%p\n", dentry_count, dentry,
+                       dentry->d_name.len, dentry->d_name.name,
+                       dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
+                       dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
+                       dentry->d_flags, dentry->d_fsdata);
 
-        list_for_each(tmp, &inode->i_dentry)
                 dentry_count++;
+        }
 
-        CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
-               inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
-               inode->i_mode, atomic_read(&inode->i_count), dentry_count);
 }
 
 void lustre_dump_dentry(struct dentry *dentry, int recur)
@@ -579,27 +582,6 @@ void lustre_dump_dentry(struct dentry *dentry, int recur)
         }
 }
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-void lustre_throw_orphan_dentries(struct super_block *sb)
-{
-        struct dentry *dentry, *next;
-        struct ll_sb_info *sbi = ll_s2sbi(sb);
-
-        /* Do this to get rid of orphaned dentries. That is not really trw. */
-        list_for_each_entry_safe(dentry, next, &sbi->ll_orphan_dentry_list,
-                                 d_hash) {
-                CWARN("found orphan dentry %.*s (%p->%p) at unmount, dumping "
-                      "before and after shrink_dcache_parent\n",
-                      dentry->d_name.len, dentry->d_name.name, dentry, next);
-                lustre_dump_dentry(dentry, 1);
-                shrink_dcache_parent(dentry);
-                lustre_dump_dentry(dentry, 1);
-        }
-}
-#else
-#define lustre_throw_orphan_dentries(sb)
-#endif
-
 #ifdef HAVE_EXPORT___IGET
 static void prune_dir_dentries(struct inode *inode)
 {
@@ -702,10 +684,19 @@ void client_common_put_super(struct super_block *sb)
         struct ll_sb_info *sbi = ll_s2sbi(sb);
         ENTRY;
 
+#ifdef CONFIG_FS_POSIX_ACL
+        if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
+                et_fini(&sbi->ll_et);
+                rct_fini(&sbi->ll_rct);
+        }
+#endif
+
         obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
 
         ll_close_thread_shutdown(sbi->ll_lcq);
 
+        cl_sb_fini(sb);
+
         /* destroy inodes in deathrow */
         prune_deathrow(sbi, 0);
 
@@ -721,8 +712,6 @@ void client_common_put_super(struct super_block *sb)
         obd_disconnect(sbi->ll_md_exp);
         sbi->ll_md_exp = NULL;
 
-        lustre_throw_orphan_dentries(sb);
-
         EXIT;
 }
 
@@ -784,7 +773,7 @@ static int ll_options(char *options, int *flags)
         char *s1 = options, *s2;
         ENTRY;
 
-        if (!options) 
+        if (!options)
                 RETURN(0);
 
         CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
@@ -848,6 +837,26 @@ static int ll_options(char *options, int *flags)
                         *flags &= ~tmp;
                         goto next;
                 }
+                tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
+                if (tmp) {
+                        *flags |= tmp;
+                        goto next;
+                }
+                tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
+                if (tmp) {
+                        *flags &= ~tmp;
+                        goto next;
+                }
+                tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
+                if (tmp) {
+                        *flags |= tmp;
+                        goto next;
+                }
+                tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
+                if (tmp) {
+                        *flags &= ~tmp;
+                        goto next;
+                }
 
                 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
                                    s1);
@@ -871,7 +880,6 @@ void ll_lli_init(struct ll_inode_info *lli)
         lli->lli_flags = 0;
         lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
         spin_lock_init(&lli->lli_lock);
-        INIT_LIST_HEAD(&lli->lli_pending_write_llaps);
         INIT_LIST_HEAD(&lli->lli_close_list);
         lli->lli_inode_magic = LLI_INODE_MAGIC;
         sema_init(&lli->lli_och_sem, 1);
@@ -902,7 +910,6 @@ int ll_fill_super(struct super_block *sb)
 
         cfs_module_get();
 
-        sb->s_type->fs_flags |= FS_ODD_RENAME;
         /* client additional sb info */
         lsi->lsi_llsbi = sbi = ll_init_sbi();
         if (!sbi) {
@@ -911,7 +918,7 @@ int ll_fill_super(struct super_block *sb)
         }
 
         err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
-        if (err) 
+        if (err)
                 GOTO(out_free, err);
 
         /* Generate a string unique to this super, in case some joker tries
@@ -951,24 +958,24 @@ int ll_fill_super(struct super_block *sb)
         sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
 
         /* connections, registrations, sb setup */
-        err = client_common_fill_super(sb, md, dt,
-                                       lsi->lsi_lmd->lmd_nllu,
-                                       lsi->lsi_lmd->lmd_nllg);
+        err = client_common_fill_super(sb, md, dt);
 
 out_free:
         if (md)
                 OBD_FREE(md, strlen(md) + 1);
         if (dt)
                 OBD_FREE(dt, strlen(dt) + 1);
-        if (err) 
+        if (err)
                 ll_put_super(sb);
         else
-                LCONSOLE_WARN("Client %s has started\n", profilenm);        
+                LCONSOLE_WARN("Client %s has started\n", profilenm);
 
         RETURN(err);
 } /* ll_fill_super */
 
 
+void lu_context_keys_dump(void);
+
 void ll_put_super(struct super_block *sb)
 {
         struct config_llog_instance cfg;
@@ -987,14 +994,14 @@ void ll_put_super(struct super_block *sb)
         sprintf(ll_instance, "%p", sb);
         cfg.cfg_instance = ll_instance;
         lustre_end_log(sb, NULL, &cfg);
-        
+
         if (sbi->ll_md_exp) {
                 obd = class_exp2obd(sbi->ll_md_exp);
-                if (obd) 
+                if (obd)
                         force = obd->obd_force;
         }
-        
-        /* We need to set force before the lov_disconnect in 
+
+        /* We need to set force before the lov_disconnect in
            lustre_common_put_super, since l_d cleans up osc's as well. */
         if (force) {
                 next = 0;
@@ -1002,12 +1009,13 @@ void ll_put_super(struct super_block *sb)
                                                      &next)) != NULL) {
                         obd->obd_force = force;
                 }
-        }                       
+        }
 
         if (sbi->ll_lcq) {
                 /* Only if client_common_fill_super succeeded */
                 client_common_put_super(sb);
         }
+
         next = 0;
         while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
                 class_manual_cleanup(obd);
@@ -1021,39 +1029,15 @@ void ll_put_super(struct super_block *sb)
 
         lustre_common_put_super(sb);
 
+        cl_env_cache_purge(~0);
+
         LCONSOLE_WARN("client %s umount complete\n", ll_instance);
-        
+
         cfs_module_put();
 
         EXIT;
 } /* client_put_super */
 
-#ifdef HAVE_REGISTER_CACHE
-#include <linux/cache_def.h>
-#ifdef HAVE_CACHE_RETURN_INT
-static int
-#else
-static void
-#endif
-ll_shrink_cache(int priority, unsigned int gfp_mask)
-{
-        struct ll_sb_info *sbi;
-        int count = 0;
-
-        list_for_each_entry(sbi, &ll_super_blocks, ll_list)
-                count += llap_shrink_cache(sbi, priority);
-
-#ifdef HAVE_CACHE_RETURN_INT
-        return count;
-#endif
-}
-
-struct cache_definition ll_cache_definition = {
-        .name = "llap_cache",
-        .shrink = ll_shrink_cache
-};
-#endif /* HAVE_REGISTER_CACHE */
-
 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
 {
         struct inode *inode = NULL;
@@ -1098,6 +1082,13 @@ void ll_clear_inode(struct inode *inode)
         CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
                inode->i_generation, inode);
 
+        if (S_ISDIR(inode->i_mode)) {
+                /* these should have been cleared in ll_file_release */
+                LASSERT(lli->lli_sai == NULL);
+                LASSERT(lli->lli_opendir_key == NULL);
+                LASSERT(lli->lli_opendir_pid == 0);
+        }
+
         ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
         md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
                          null_if_equal, inode);
@@ -1113,14 +1104,6 @@ void ll_clear_inode(struct inode *inode)
         if (lli->lli_mds_read_och)
                 ll_md_real_close(inode, FMODE_READ);
 
-        if (lli->lli_smd) {
-                obd_change_cbdata(sbi->ll_dt_exp, lli->lli_smd,
-                                  null_if_equal, inode);
-
-                obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
-                lli->lli_smd = NULL;
-        }
-
         if (lli->lli_symlink_name) {
                 OBD_FREE(lli->lli_symlink_name,
                          strlen(lli->lli_symlink_name) + 1);
@@ -1150,6 +1133,17 @@ void ll_clear_inode(struct inode *inode)
         spin_unlock(&sbi->ll_deathrow_lock);
 #endif
         ll_clear_inode_capas(inode);
+        /*
+         * XXX This has to be done before lsm is freed below, because
+         * cl_object still uses inode lsm.
+         */
+        cl_inode_fini(inode);
+
+        if (lli->lli_smd) {
+                obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
+                lli->lli_smd = NULL;
+        }
+
 
         EXIT;
 }
@@ -1162,13 +1156,13 @@ int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
         struct ptlrpc_request *request = NULL;
         int rc;
         ENTRY;
-        
-        op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, 
+
+        op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
                                      LUSTRE_OPC_ANY, NULL);
         if (IS_ERR(op_data))
                 RETURN(PTR_ERR(op_data));
 
-        rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0, 
+        rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
                         &request, mod);
         if (rc) {
                 ptlrpc_req_finished(request);
@@ -1185,8 +1179,8 @@ int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
                 RETURN(rc);
         }
 
-        rc = md_get_lustre_md(sbi->ll_md_exp, request, REPLY_REC_OFF,
-                              sbi->ll_dt_exp, sbi->ll_md_exp, &md);
+        rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
+                              sbi->ll_md_exp, &md);
         if (rc) {
                 ptlrpc_req_finished(request);
                 RETURN(rc);
@@ -1217,7 +1211,7 @@ static int ll_setattr_done_writing(struct inode *inode,
         struct ll_inode_info *lli = ll_i2info(inode);
         int rc = 0;
         ENTRY;
-        
+
         LASSERT(op_data != NULL);
         if (!S_ISREG(inode->i_mode))
                 RETURN(0);
@@ -1230,7 +1224,7 @@ static int ll_setattr_done_writing(struct inode *inode,
         if (rc == -EAGAIN) {
                 /* MDS has instructed us to obtain Size-on-MDS attribute
                  * from OSTs and send setattr to back to MDS. */
-                rc = ll_sizeonmds_update(inode, mod, &op_data->op_handle,
+                rc = ll_sizeonmds_update(inode, &op_data->op_handle,
                                          op_data->op_ioepoch);
         } else if (rc) {
                 CERROR("inode %lu mdc truncate failed: rc = %d\n",
@@ -1239,6 +1233,27 @@ static int ll_setattr_done_writing(struct inode *inode,
         RETURN(rc);
 }
 
+static int ll_setattr_do_truncate(struct inode *inode, loff_t size)
+{
+        struct obd_capa *capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
+        int rc;
+
+        rc = cl_setattr_do_truncate(inode, size, capa);
+        ll_truncate_free_capa(capa);
+        return rc;
+}
+
+static int ll_setattr_ost(struct inode *inode)
+{
+        struct obd_capa *capa = ll_mdscapa_get(inode);
+        int rc;
+
+        rc = cl_setattr_ost(inode, capa);
+        capa_put(capa);
+
+        return rc;
+}
+
 /* If this inode has objects allocated to it (lsm != NULL), then the OST
  * object(s) determine the file size and mtime.  Otherwise, the MDS will
  * keep these values until such a time that objects are allocated for it.
@@ -1256,7 +1271,6 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
 {
         struct ll_inode_info *lli = ll_i2info(inode);
         struct lov_stripe_md *lsm = lli->lli_smd;
-        struct ll_sb_info *sbi = ll_i2sbi(inode);
         struct md_op_data *op_data = NULL;
         struct md_open_data *mod = NULL;
         int ia_valid = attr->ia_valid;
@@ -1279,7 +1293,8 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
 
         /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
         if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
-                if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+                if (current->fsuid != inode->i_uid &&
+                    !cfs_capable(CFS_CAP_FOWNER))
                         RETURN(-EPERM);
         }
 
@@ -1297,12 +1312,12 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
                 attr->ia_valid |= ATTR_MTIME_SET;
         }
         if ((attr->ia_valid & ATTR_CTIME) && !(attr->ia_valid & ATTR_MTIME)) {
-                /* To avoid stale mtime on mds, obtain it from ost and send 
+                /* To avoid stale mtime on mds, obtain it from ost and send
                    to mds. */
-                rc = ll_glimpse_size(inode, 0);
-                if (rc) 
+                rc = cl_glimpse_size(inode);
+                if (rc)
                         RETURN(rc);
-                
+
                 attr->ia_valid |= ATTR_MTIME_SET | ATTR_MTIME;
                 attr->ia_mtime = inode->i_mtime;
         }
@@ -1310,7 +1325,7 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
         if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
                 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
                        LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
-                       CURRENT_SECONDS);
+                       cfs_time_current_sec());
 
         /* NB: ATTR_SIZE will only be set after this point if the size
          * resides on the MDS, ie, this file has no objects. */
@@ -1323,108 +1338,30 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
         OBD_ALLOC_PTR(op_data);
         if (op_data == NULL)
                 RETURN(-ENOMEM);
-        
+
         memcpy(&op_data->op_attr, attr, sizeof(*attr));
 
         /* Open epoch for truncate. */
-        if (ia_valid & ATTR_SIZE)
+        if ((ll_i2mdexp(inode)->exp_connect_flags & OBD_CONNECT_SOM) &&
+            (ia_valid & ATTR_SIZE))
                 op_data->op_flags = MF_EPOCH_OPEN;
-        
+
         rc = ll_md_setattr(inode, op_data, &mod);
         if (rc)
                 GOTO(out, rc);
 
-        if (op_data->op_ioepoch)
-                CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID" for "
-                       "truncate\n", op_data->op_ioepoch, PFID(&lli->lli_fid));
-
+        ll_ioepoch_open(lli, op_data->op_ioepoch);
         if (!lsm || !S_ISREG(inode->i_mode)) {
                 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
                 GOTO(out, rc = 0);
         }
 
-        /* We really need to get our PW lock before we change inode->i_size.
-         * If we don't we can race with other i_size updaters on our node, like
-         * ll_file_read.  We can also race with i_size propogation to other
-         * nodes through dirtying and writeback of final cached pages.  This
-         * last one is especially bad for racing o_append users on other
-         * nodes. */
-        if (ia_valid & ATTR_SIZE) {
-                ldlm_policy_data_t policy = { .l_extent = {attr->ia_size,
-                                                           OBD_OBJECT_EOF } };
-                struct lustre_handle lockh = { 0 };
-                int err, ast_flags = 0;
-                /* XXX when we fix the AST intents to pass the discard-range
-                 * XXX extent, make ast_flags always LDLM_AST_DISCARD_DATA
-                 * XXX here. */
-                if (attr->ia_size == 0)
-                        ast_flags = LDLM_AST_DISCARD_DATA;
-
-                UNLOCK_INODE_MUTEX(inode);
-                UP_WRITE_I_ALLOC_SEM(inode);
-                rc = ll_extent_lock(NULL, inode, lsm, LCK_PW, &policy, &lockh,
-                                    ast_flags);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-                DOWN_WRITE_I_ALLOC_SEM(inode);
-                LOCK_INODE_MUTEX(inode);
-#else
-                LOCK_INODE_MUTEX(inode);
-                DOWN_WRITE_I_ALLOC_SEM(inode);
-#endif
-                if (rc != 0)
-                        GOTO(out, rc);
-
-                /* Only ll_inode_size_lock is taken at this level.
-                 * lov_stripe_lock() is grabbed by ll_truncate() only over
-                 * call to obd_adjust_kms().  If vmtruncate returns 0, then
-                 * ll_truncate dropped ll_inode_size_lock() */
-                ll_inode_size_lock(inode, 0);
-                rc = vmtruncate(inode, attr->ia_size);
-                if (rc != 0) {
-                        LASSERT(atomic_read(&lli->lli_size_sem.count) <= 0);
-                        ll_inode_size_unlock(inode, 0);
-                }
-
-                err = ll_extent_unlock(NULL, inode, lsm, LCK_PW, &lockh);
-                if (err) {
-                        CERROR("ll_extent_unlock failed: %d\n", err);
-                        if (!rc)
-                                rc = err;
-                }
-        } else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
-                obd_flag flags;
-                struct obd_info oinfo = { { { 0 } } };
-                struct obdo *oa;
-
+        if (ia_valid & ATTR_SIZE)
+                rc = ll_setattr_do_truncate(inode, attr->ia_size);
+        else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
                 CDEBUG(D_INODE, "set mtime on OST inode %lu to %lu\n",
                        inode->i_ino, LTIME_S(attr->ia_mtime));
-
-                OBDO_ALLOC(oa);
-                if (oa) {
-                        oa->o_id = lsm->lsm_object_id;
-                        oa->o_gr = lsm->lsm_object_gr;
-                        oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
-
-                        flags = OBD_MD_FLTYPE | OBD_MD_FLATIME |
-                                OBD_MD_FLMTIME | OBD_MD_FLCTIME |
-                                OBD_MD_FLFID | OBD_MD_FLGENER | 
-                                OBD_MD_FLGROUP;
-
-                        obdo_from_inode(oa, inode, flags);
-
-                        oinfo.oi_oa = oa;
-                        oinfo.oi_md = lsm;
-                        oinfo.oi_capa = ll_mdscapa_get(inode);
-
-                        /* XXX: this looks unnecessary now. */
-                        rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
-                        capa_put(oinfo.oi_capa);
-                        if (rc)
-                                CERROR("obd_setattr_async fails: rc=%d\n", rc);
-                        OBDO_FREE(oa);
-                } else {
-                        rc = -ENOMEM;
-                }
+                rc = ll_setattr_ost(inode);
         }
         EXIT;
 out:
@@ -1442,18 +1379,28 @@ int ll_setattr(struct dentry *de, struct iattr *attr)
             (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
                 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
 
+        if ((de->d_inode->i_mode & S_ISUID) &&
+            !(attr->ia_mode & S_ISUID) &&
+            !(attr->ia_valid & ATTR_KILL_SUID))
+                attr->ia_valid |= ATTR_KILL_SUID;
+
+        if (((de->d_inode->i_mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
+            !(attr->ia_mode & S_ISGID) &&
+            !(attr->ia_valid & ATTR_KILL_SGID))
+                attr->ia_valid |= ATTR_KILL_SGID;
+
         return ll_setattr_raw(de->d_inode, attr);
 }
 
 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
-                       __u64 max_age)
+                       __u64 max_age, __u32 flags)
 {
         struct ll_sb_info *sbi = ll_s2sbi(sb);
         struct obd_statfs obd_osfs;
         int rc;
         ENTRY;
 
-        rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age);
+        rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
         if (rc) {
                 CERROR("md_statfs fails: rc = %d\n", rc);
                 RETURN(rc);
@@ -1464,8 +1411,11 @@ int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
         CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
                osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
 
+        if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
+                flags |= OBD_STATFS_NODELAY;
+
         rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
-                              &obd_osfs, max_age);
+                              &obd_osfs, max_age, flags);
         if (rc) {
                 CERROR("obd_statfs fails: rc = %d\n", rc);
                 RETURN(rc);
@@ -1509,7 +1459,7 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
         /* For now we will always get up-to-date statfs values, but in the
          * future we may allow some amount of caching on the client (e.g.
          * from QOS or lprocfs updates). */
-        rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - 1);
+        rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - 1, 0);
         if (rc)
                 return rc;
 
@@ -1596,16 +1546,19 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
         LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
         if (lsm != NULL) {
                 if (lli->lli_smd == NULL) {
-                        if (lsm->lsm_magic != LOV_MAGIC &&
+                        if (lsm->lsm_magic != LOV_MAGIC_V1 &&
+                            lsm->lsm_magic != LOV_MAGIC_V3 &&
                             lsm->lsm_magic != LOV_MAGIC_JOIN) {
                                 dump_lsm(D_ERROR, lsm);
                                 LBUG();
                         }
                         CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
                                lsm, inode->i_ino, inode->i_generation, inode);
-                        /* ll_inode_size_lock() requires it is only called
-                         * with lli_smd != NULL or lock_lsm == 0 or we can
-                         * race between lock/unlock.  bug 9547 */
+                        cl_inode_init(inode, md);
+                        /* ll_inode_size_lock() requires it is only
+                         * called with lli_smd != NULL or lock_lsm == 0
+                         *  or we can race between lock/unlock.
+                         *  bug 9547 */
                         lli->lli_smd = lsm;
                         lli->lli_maxbytes = lsm->lsm_maxbytes;
                         if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
@@ -1623,8 +1576,10 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                                         dump_lsm(D_ERROR, lsm);
                                         LBUG();
                                 }
-                        } else
+                        } else {
+                                cl_inode_init(inode, md);
                                 ll_replace_lsm(inode, lsm);
+                        }
                 }
                 if (lli->lli_smd != lsm)
                         obd_free_memmd(ll_i2dtexp(inode), &lsm);
@@ -1643,20 +1598,23 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                 spin_unlock(&lli->lli_lock);
         }
 #endif
+        inode->i_ino = ll_fid_build_ino(sbi, &body->fid1);
+        inode->i_generation = ll_fid_build_gen(sbi, &body->fid1);
+
         if (body->valid & OBD_MD_FLATIME &&
             body->atime > LTIME_S(inode->i_atime))
                 LTIME_S(inode->i_atime) = body->atime;
-        
+
         /* mtime is always updated with ctime, but can be set in past.
            As write and utime(2) may happen within 1 second, and utime's
-           mtime has a priority over write's one, so take mtime from mds 
+           mtime has a priority over write's one, so take mtime from mds
            for the same ctimes. */
         if (body->valid & OBD_MD_FLCTIME &&
             body->ctime >= LTIME_S(inode->i_ctime)) {
                 LTIME_S(inode->i_ctime) = body->ctime;
                 if (body->valid & OBD_MD_FLMTIME) {
                         CDEBUG(D_INODE, "setting ino %lu mtime "
-                               "from %lu to "LPU64"\n", inode->i_ino, 
+                               "from %lu to "LPU64"\n", inode->i_ino,
                                LTIME_S(inode->i_mtime), body->mtime);
                         LTIME_S(inode->i_mtime) = body->mtime;
                 }
@@ -1665,6 +1623,7 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
         if (body->valid & OBD_MD_FLTYPE)
                 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
+        LASSERT(inode->i_mode != 0);
         if (S_ISREG(inode->i_mode)) {
                 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
         } else {
@@ -1682,30 +1641,7 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
         if (body->valid & OBD_MD_FLNLINK)
                 inode->i_nlink = body->nlink;
         if (body->valid & OBD_MD_FLRDEV)
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-                inode->i_rdev = body->rdev;
-#else
                 inode->i_rdev = old_decode_dev(body->rdev);
-#endif
-        if (body->valid & OBD_MD_FLSIZE) {
-                if (ll_i2mdexp(inode)->exp_connect_flags & OBD_CONNECT_SOM) {
-                        if (lli->lli_flags & (LLIF_DONE_WRITING |
-                                              LLIF_EPOCH_PENDING |
-                                              LLIF_SOM_DIRTY))
-                          CWARN("ino %lu flags %lu still has size authority!"
-                                "do not trust the size got from MDS\n", 
-                                inode->i_ino, lli->lli_flags);
-                        else {
-                                i_size_write(inode, body->size);
-                                lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
-                        }
-                } else {
-                        i_size_write(inode, body->size);
-                }
-
-                if (body->valid & OBD_MD_FLBLOCKS)
-                        inode->i_blocks = body->blocks;
-        }
 
         if (body->valid & OBD_MD_FLID) {
                 /* FID shouldn't be changed! */
@@ -1715,12 +1651,50 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                                  " to the "DFID", inode %lu/%u(%p)\n",
                                  PFID(&lli->lli_fid), PFID(&body->fid1),
                                  inode->i_ino, inode->i_generation, inode);
-                } else 
+                } else
                         lli->lli_fid = body->fid1;
         }
 
         LASSERT(fid_seq(&lli->lli_fid) != 0);
 
+        if (body->valid & OBD_MD_FLSIZE) {
+                if (exp_connect_som(ll_i2mdexp(inode)) &&
+                    S_ISREG(inode->i_mode) && lli->lli_smd) {
+                        struct lustre_handle lockh;
+                        ldlm_mode_t mode;
+
+                        /* As it is possible a blocking ast has been processed
+                         * by this time, we need to check there is an UPDATE
+                         * lock on the client and set LLIF_MDS_SIZE_LOCK holding
+                         * it. */
+                        mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
+                                               &lockh);
+                        if (mode) {
+                                if (lli->lli_flags & (LLIF_DONE_WRITING |
+                                                      LLIF_EPOCH_PENDING |
+                                                      LLIF_SOM_DIRTY)) {
+                                        CERROR("ino %lu flags %lu still has "
+                                               "size authority! do not trust "
+                                               "the size got from MDS\n",
+                                               inode->i_ino, lli->lli_flags);
+                                } else {
+                                        /* Use old size assignment to avoid
+                                         * deadlock bz14138 & bz14326 */
+                                        inode->i_size = body->size;
+                                        lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
+                                }
+                                ldlm_lock_decref(&lockh, mode);
+                        }
+                } else {
+                        /* Use old size assignment to avoid
+                         * deadlock bz14138 & bz14326 */
+                        inode->i_size = body->size;
+                }
+
+                if (body->valid & OBD_MD_FLBLOCKS)
+                        inode->i_blocks = body->blocks;
+        }
+
         if (body->valid & OBD_MD_FLMDSCAPA) {
                 LASSERT(md->mds_capa);
                 ll_add_capa(inode, md->mds_capa);
@@ -1731,7 +1705,6 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
         }
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 static struct backing_dev_info ll_backing_dev_info = {
         .ra_pages       = 0,    /* No readahead */
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12))
@@ -1740,7 +1713,6 @@ static struct backing_dev_info ll_backing_dev_info = {
         .memory_backed  = 0,    /* Does contribute to dirty memory */
 #endif
 };
-#endif
 
 void ll_read_inode2(struct inode *inode, void *opaque)
 {
@@ -1784,15 +1756,12 @@ void ll_read_inode2(struct inode *inode, void *opaque)
         } else {
                 inode->i_op = &ll_special_inode_operations;
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
                 init_special_inode(inode, inode->i_mode,
                                    kdev_t_to_nr(inode->i_rdev));
 
                 /* initializing backing dev info. */
                 inode->i_mapping->backing_dev_info = &ll_backing_dev_info;
-#else
-                init_special_inode(inode, inode->i_mode, inode->i_rdev);
-#endif
+
                 EXIT;
         }
 }
@@ -1807,6 +1776,7 @@ void ll_delete_inode(struct inode *inode)
         if (rc) {
                 CERROR("fid_delete() failed, rc %d\n", rc);
         }
+        truncate_inode_pages(&inode->i_data, 0);
         clear_inode(inode);
 
         EXIT;
@@ -1834,14 +1804,11 @@ int ll_iocontrol(struct inode *inode, struct file *file,
                         RETURN(-abs(rc));
                 }
 
-                body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
-                                      sizeof(*body));
+                body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
 
-                /*Now the ext3 will be packed directly back to client,
-                 *no need convert here*/
                 flags = body->flags;
 
-                ptlrpc_req_finished (req);
+                ptlrpc_req_finished(req);
 
                 RETURN(put_user(flags, (int *)arg));
         }
@@ -1877,7 +1844,7 @@ int ll_iocontrol(struct inode *inode, struct file *file,
                 oinfo.oi_oa->o_id = lsm->lsm_object_id;
                 oinfo.oi_oa->o_gr = lsm->lsm_object_gr;
                 oinfo.oi_oa->o_flags = flags;
-                oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | 
+                oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
                                        OBD_MD_FLGROUP;
                 oinfo.oi_capa = ll_mdscapa_get(inode);
 
@@ -1910,10 +1877,10 @@ int ll_flush_ctx(struct inode *inode)
         CDEBUG(D_SEC, "flush context for user %d\n", current->uid);
 
         obd_set_info_async(sbi->ll_md_exp,
-                           sizeof(KEY_FLUSH_CTX) - 1, KEY_FLUSH_CTX,
+                           sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
                            0, NULL, NULL);
         obd_set_info_async(sbi->ll_dt_exp,
-                           sizeof(KEY_FLUSH_CTX) - 1, KEY_FLUSH_CTX,
+                           sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
                            0, NULL, NULL);
         return 0;
 }
@@ -1971,9 +1938,19 @@ void ll_umount_begin(struct super_block *sb)
 
         /* Really, we'd like to wait until there are no requests outstanding,
          * and then continue.  For now, we just invalidate the requests,
-         * schedule, and hope.
+         * schedule() and sleep one second if needed, and hope.
          */
         schedule();
+#ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
+        if (atomic_read(&vfsmnt->mnt_count) > 2) {
+                cfs_schedule_timeout(CFS_TASK_INTERRUPTIBLE,
+                                     cfs_time_seconds(1));
+                if (atomic_read(&vfsmnt->mnt_count) > 2)
+                        LCONSOLE_WARN("Mount still busy with %d refs! You "
+                                      "may try to umount it a bit later\n",
+                                      atomic_read(&vfsmnt->mnt_count));
+        }
+#endif
 
         EXIT;
 }
@@ -1987,7 +1964,7 @@ int ll_remount_fs(struct super_block *sb, int *flags, char *data)
         if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
                 read_only = *flags & MS_RDONLY;
                 err = obd_set_info_async(sbi->ll_md_exp,
-                                         sizeof(KEY_READ_ONLY) - 1,
+                                         sizeof(KEY_READ_ONLY),
                                          KEY_READ_ONLY, sizeof(read_only),
                                          &read_only, NULL);
                 if (err) {
@@ -2004,12 +1981,13 @@ int ll_remount_fs(struct super_block *sb, int *flags, char *data)
         return 0;
 }
 
-int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
-                  int offset, struct super_block *sb)
+int ll_prep_inode(struct inode **inode,
+                  struct ptlrpc_request *req,
+                  struct super_block *sb)
 {
         struct ll_sb_info *sbi = NULL;
         struct lustre_md md;
-        int rc = 0;
+        int rc;
         ENTRY;
 
         LASSERT(*inode || sb);
@@ -2017,8 +1995,8 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
         prune_deathrow(sbi, 1);
         memset(&md, 0, sizeof(struct lustre_md));
 
-        rc = md_get_lustre_md(sbi->ll_md_exp, req, offset,
-                              sbi->ll_dt_exp, sbi->ll_md_exp, &md);
+        rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
+                              sbi->ll_md_exp, &md);
         if (rc)
                 RETURN(rc);
 
@@ -2033,8 +2011,8 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
                  */
                 LASSERT(fid_is_sane(&md.body->fid1));
 
-                *inode = ll_iget(sb, ll_fid_build_ino(sbi, &md.body->fid1), &md);
-                if (*inode == NULL || is_bad_inode(*inode)) {
+                *inode = ll_iget(sb, ll_fid_build_ino(sbi, &md.body->fid1),&md);
+                if (*inode == NULL || IS_ERR(*inode)) {
                         if (md.lsm)
                                 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
 #ifdef CONFIG_FS_POSIX_ACL
@@ -2043,7 +2021,8 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
                                 md.posix_acl = NULL;
                         }
 #endif
-                        rc = -ENOMEM;
+                        rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
+                        *inode = NULL;
                         CERROR("new_inode -fatal: rc %d\n", rc);
                         GOTO(out, rc);
                 }
@@ -2056,41 +2035,13 @@ out:
         RETURN(rc);
 }
 
-char *llap_origins[] = {
-        [LLAP_ORIGIN_UNKNOWN] = "--",
-        [LLAP_ORIGIN_READPAGE] = "rp",
-        [LLAP_ORIGIN_READAHEAD] = "ra",
-        [LLAP_ORIGIN_COMMIT_WRITE] = "cw",
-        [LLAP_ORIGIN_WRITEPAGE] = "wp",
-};
-
-struct ll_async_page *llite_pglist_next_llap(struct ll_sb_info *sbi,
-                                             struct list_head *list)
-{
-        struct ll_async_page *llap;
-        struct list_head *pos;
-
-        list_for_each(pos, list) {
-                if (pos == &sbi->ll_pglist)
-                        return NULL;
-                llap = list_entry(pos, struct ll_async_page, llap_pglist_item);
-                if (llap->llap_page == NULL)
-                        continue;
-                return llap;
-        }
-        LBUG();
-        return NULL;
-}
-
 int ll_obd_statfs(struct inode *inode, void *arg)
 {
         struct ll_sb_info *sbi = NULL;
-        struct obd_device *client_obd = NULL, *lov_obd = NULL;
-        struct lov_obd *lov = NULL;
-        struct obd_statfs stat_buf = {0};
+        struct obd_export *exp;
         char *buf = NULL;
         struct obd_ioctl_data *data = NULL;
-        __u32 type, index;
+        __u32 type;
         int len = 0, rc;
 
         if (!inode || !(sbi = ll_i2sbi(inode)))
@@ -2106,42 +2057,16 @@ int ll_obd_statfs(struct inode *inode, void *arg)
                 GOTO(out_statfs, rc = -EINVAL);
 
         memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
-        memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
-
-        if (type == LL_STATFS_MDC) {
-                if (index > 0)
-                        GOTO(out_statfs, rc = -ENODEV);
-                client_obd = class_exp2obd(sbi->ll_md_exp);
-        } else if (type == LL_STATFS_LOV) {
-                lov_obd = class_exp2obd(sbi->ll_dt_exp);
-                lov = &lov_obd->u.lov;
-
-                if ((index >= lov->desc.ld_tgt_count))
-                        GOTO(out_statfs, rc = -ENODEV);
-                if (!lov->lov_tgts[index])
-                        /* Try again with the next index */
-                        GOTO(out_statfs, rc = -EAGAIN);
-
-                client_obd = class_exp2obd(lov->lov_tgts[index]->ltd_exp);
-                if (!lov->lov_tgts[index]->ltd_active)
-                        GOTO(out_uuid, rc = -ENODATA);
-        }
-
-        if (!client_obd)
-                GOTO(out_statfs, rc = -EINVAL);
+        if (type == LL_STATFS_MDC)
+                exp = sbi->ll_md_exp;
+        else if (type == LL_STATFS_LOV)
+                exp = sbi->ll_dt_exp;
+        else
+                GOTO(out_statfs, rc = -ENODEV);
 
-        rc = obd_statfs(client_obd, &stat_buf, cfs_time_current_64() - 1);
+        rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
         if (rc)
                 GOTO(out_statfs, rc);
-
-        if (copy_to_user(data->ioc_pbuf1, &stat_buf, data->ioc_plen1))
-                GOTO(out_statfs, rc = -EFAULT);
-
-out_uuid:
-        if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(client_obd),
-                         data->ioc_plen2))
-                rc = -EFAULT;
-
 out_statfs:
         if (buf)
                 obd_ioctl_freedata(buf, len);
@@ -2153,14 +2078,14 @@ int ll_process_config(struct lustre_cfg *lcfg)
         char *ptr;
         void *sb;
         struct lprocfs_static_vars lvars;
-        unsigned long x; 
+        unsigned long x;
         int rc = 0;
 
-        lprocfs_init_vars(llite, &lvars);
+        lprocfs_llite_init_vars(&lvars);
 
         /* The instance name contains the sb: lustre-client-aacfe000 */
         ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
-        if (!ptr || !*(++ptr)) 
+        if (!ptr || !*(++ptr))
                 return -EINVAL;
         if (sscanf(ptr, "%lx", &x) != 1)
                 return -EINVAL;
@@ -2168,10 +2093,12 @@ int ll_process_config(struct lustre_cfg *lcfg)
         /* This better be a real Lustre superblock! */
         LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
 
-        /* Note we have not called client_common_fill_super yet, so 
+        /* Note we have not called client_common_fill_super yet, so
            proc fns must be able to handle that! */
         rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
                                       lcfg, sb);
+        if (rc > 0)
+                rc = 0;
         return(rc);
 }
 
@@ -2185,10 +2112,10 @@ struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
 
         if (namelen > ll_i2sbi(i1)->ll_namelen)
                 return ERR_PTR(-ENAMETOOLONG);
-        
+
         if (op_data == NULL)
                 OBD_ALLOC_PTR(op_data);
-        
+
         if (op_data == NULL)
                 return ERR_PTR(-ENOMEM);
 
@@ -2201,15 +2128,16 @@ struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
                 op_data->op_capa2 = ll_mdscapa_get(i2);
         } else {
                 fid_zero(&op_data->op_fid2);
+                op_data->op_capa2 = NULL;
         }
 
         op_data->op_name = name;
         op_data->op_namelen = namelen;
         op_data->op_mode = mode;
-        op_data->op_mod_time = CURRENT_SECONDS;
+        op_data->op_mod_time = cfs_time_current_sec();
         op_data->op_fsuid = current->fsuid;
         op_data->op_fsgid = current->fsgid;
-        op_data->op_cap = current->cap_effective;
+        op_data->op_cap = cfs_curproc_cap_pack();
         op_data->op_bias = MDS_CHECK_SPLIT;
         op_data->op_opc = opc;
         op_data->op_mds = 0;
@@ -2225,99 +2153,30 @@ void ll_finish_md_op_data(struct md_op_data *op_data)
         OBD_FREE_PTR(op_data);
 }
 
-int ll_ioctl_getfacl(struct inode *inode, struct rmtacl_ioctl_data *ioc)
+int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
-        struct ll_sb_info *sbi = ll_i2sbi(inode);
-        struct ptlrpc_request *req = NULL;
-        struct mdt_body *body;
-        char *cmd, *buf;
-        struct obd_capa *oc;
-        int rc, buflen;
-        ENTRY;
-
-        if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT))
-                RETURN(-EBADE);
-
-        LASSERT(ioc->cmd && ioc->cmd_len && ioc->res && ioc->res_len);
-
-        OBD_ALLOC(cmd, ioc->cmd_len);
-        if (!cmd)
-                RETURN(-ENOMEM);
-        if (copy_from_user(cmd, ioc->cmd, ioc->cmd_len))
-                GOTO(out, rc = -EFAULT);
-
-        oc = ll_mdscapa_get(inode);
-        rc = md_getxattr(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
-                         OBD_MD_FLXATTR, XATTR_NAME_LUSTRE_ACL, cmd,
-                         ioc->cmd_len, ioc->res_len, 0, &req);
-        capa_put(oc);
-        if (rc < 0) {
-                CERROR("mdc_getxattr %s [%s] failed: %d\n",
-                       XATTR_NAME_LUSTRE_ACL, cmd, rc);
-                GOTO(out, rc);
-        }
+        struct ll_sb_info *sbi;
 
-        body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, sizeof(*body));
-        LASSERT(body);
+        LASSERT((seq != NULL) && (vfs != NULL));
+        sbi = ll_s2sbi(vfs->mnt_sb);
 
-        buflen = lustre_msg_buflen(req->rq_repmsg, REPLY_REC_OFF);
-        LASSERT(buflen <= ioc->res_len);
-        buf = lustre_msg_string(req->rq_repmsg, REPLY_REC_OFF + 1, ioc->res_len);
-        LASSERT(buf);
-        if (copy_to_user(ioc->res, buf, buflen))
-                GOTO(out, rc = -EFAULT);
-        EXIT;
-out:
-        if (req)
-                ptlrpc_req_finished(req);
-        OBD_FREE(cmd, ioc->cmd_len);
-        return rc;
-}
+        if (sbi->ll_flags & LL_SBI_NOLCK)
+                seq_puts(seq, ",nolock");
 
-int ll_ioctl_setfacl(struct inode *inode, struct rmtacl_ioctl_data *ioc)
-{
-        struct ll_sb_info *sbi = ll_i2sbi(inode);
-        struct ptlrpc_request *req = NULL;
-        char *cmd, *buf;
-        struct obd_capa *oc;
-        int buflen, rc;
-        ENTRY;
+        if (sbi->ll_flags & LL_SBI_FLOCK)
+                seq_puts(seq, ",flock");
 
-        if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT))
-                RETURN(-EBADE);
+        if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
+                seq_puts(seq, ",localflock");
 
-        if (!(sbi->ll_flags & LL_SBI_ACL)) 
-                RETURN(-EOPNOTSUPP);
+        if (sbi->ll_flags & LL_SBI_USER_XATTR)
+                seq_puts(seq, ",user_xattr");
 
-        LASSERT(ioc->cmd && ioc->cmd_len && ioc->res && ioc->res_len);
+        if (sbi->ll_flags & LL_SBI_ACL)
+                seq_puts(seq, ",acl");
 
-        OBD_ALLOC(cmd, ioc->cmd_len);
-        if (!cmd)
-                RETURN(-ENOMEM);
-        if (copy_from_user(cmd, ioc->cmd, ioc->cmd_len))
-                GOTO(out, rc = -EFAULT);
-
-        oc = ll_mdscapa_get(inode);
-        rc = md_setxattr(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
-                         OBD_MD_FLXATTR, XATTR_NAME_LUSTRE_ACL, cmd,
-                         ioc->cmd_len, ioc->res_len, 0, &req);
-        capa_put(oc);
-        if (rc) {
-                CERROR("mdc_setxattr %s [%s] failed: %d\n",
-                       XATTR_NAME_LUSTRE_ACL, cmd, rc);
-                GOTO(out, rc);
-        }
+        if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
+                seq_puts(seq, ",lazystatfs");
 
-        buflen = lustre_msg_buflen(req->rq_repmsg, REPLY_REC_OFF);
-        LASSERT(buflen <= ioc->res_len);
-        buf = lustre_msg_string(req->rq_repmsg, REPLY_REC_OFF, ioc->res_len);
-        LASSERT(buf);
-        if (copy_to_user(ioc->res, buf, buflen))
-                GOTO(out, rc = -EFAULT);
-        EXIT;
-out:
-        if (req)
-                ptlrpc_req_finished(req);
-        OBD_FREE(cmd, ioc->cmd_len);
-        return rc;
+        RETURN(0);
 }