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[fs/lustre-release.git] / lustre / llite / llite_lib.c
index fc3ab33..491ae8f 100644 (file)
@@ -16,8 +16,8 @@
  * in the LICENSE file that accompanied this code).
  *
  * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
@@ -53,8 +53,8 @@
 #include <lustre_disk.h>
 #include <lustre_param.h>
 #include <lustre_log.h>
+#include <cl_object.h>
 #include <obd_cksum.h>
-#include <lustre_cache.h>
 #include "llite_internal.h"
 
 cfs_mem_cache_t *ll_file_data_slab;
@@ -69,7 +69,6 @@ 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;
@@ -88,20 +87,24 @@ 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);
 
         si_meminfo(&si);
         pages = si.totalram - si.totalhigh;
-        if (pages >> (20 - CFS_PAGE_SHIFT) < 512)
+        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;
-        else
+#endif
+        } else {
                 sbi->ll_async_page_max = (pages / 4) * 3;
-        sbi->ll_ra_info.ra_max_pages = min(num_physpages / 8,
+        }
+
+        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;
-        sbi->ll_contention_time = SBI_DEFAULT_CONTENTION_SECONDS;
-        sbi->ll_lockless_truncate_enable = SBI_DEFAULT_LOCKLESS_TRUNCATE_ENABLE;
         INIT_LIST_HEAD(&sbi->ll_conn_chain);
         INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
 
@@ -154,54 +157,19 @@ static struct dentry_operations ll_d_root_ops = {
 #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, sizeof(KEY_LOVDESC), 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)
 {
         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;
@@ -229,7 +197,9 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                                   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_FID      | OBD_CONNECT_AT |
+                                  OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
+                                  OBD_CONNECT_VBR      | OBD_CONNECT_SOM;
 
 #ifdef HAVE_LRU_RESIZE_SUPPORT
         if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
@@ -250,7 +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)
@@ -260,15 +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;
-        }
+        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, NULL);
+        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 "
@@ -279,7 +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) {
@@ -294,7 +258,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
 
         size = sizeof(*data);
         err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
-                           KEY_CONN_DATA,  &size, data);
+                           KEY_CONN_DATA,  &size, data, NULL);
         if (err) {
                 CERROR("Get connect data failed: %d \n", err);
                 GOTO(out_md, err);
@@ -344,21 +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");
                 }
         }
 
@@ -372,19 +331,6 @@ 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);
@@ -395,9 +341,9 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                                   OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
                                   OBD_CONNECT_CANCELSET | OBD_CONNECT_FID      |
                                   OBD_CONNECT_SRVLOCK   | OBD_CONNECT_TRUNCLOCK|
-                                  OBD_CONNECT_AT;
-        if (sbi->ll_flags & LL_SBI_OSS_CAPA)
-                data->ocd_connect_flags |= OBD_CONNECT_OSS_CAPA;
+                                  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
@@ -416,15 +362,18 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
 #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, NULL);
+        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 "
@@ -436,65 +385,30 @@ 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);
 
-        err = obd_register_page_removal_cb(sbi->ll_dt_exp,
-                                           ll_page_removal_cb, 
-                                           ll_pin_extent_cb);
-        if (err) {
-                CERROR("cannot register page removal callback: rc = %d\n",err);
-                GOTO(out_dt, err);
-        }
-        err = obd_register_lock_cancel_cb(sbi->ll_dt_exp,
-                                          ll_extent_lock_cancel_cb);
-        if (err) {
-                CERROR("cannot register lock cancel callback: rc = %d\n", err);
-                GOTO(out_page_rm_cb, err);
-        }
-
-        err = ll_init_ea_size(sbi->ll_md_exp, sbi->ll_dt_exp);;
-        if (err) {
-                CERROR("cannot set max EA and cookie sizes: rc = %d\n", err);
-                GOTO(out_lock_cn_cb, err);
-        }
-
-        err = obd_prep_async_page(sbi->ll_dt_exp, NULL, NULL, NULL,
-                                  0, NULL, NULL, NULL, 0, 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_lock_cn_cb, 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_lock_cn_cb, 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_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;
         sb->s_export_op = &lustre_export_operations;
@@ -507,9 +421,10 @@ 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_lock_cn_cb, err);
@@ -528,7 +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
@@ -537,8 +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);
@@ -558,21 +475,30 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         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_lock_cn_cb:
-        obd_unregister_lock_cancel_cb(sbi->ll_dt_exp,
-                                      ll_extent_lock_cancel_cb);
-out_page_rm_cb:
-        obd_unregister_page_removal_cb(sbi->ll_dt_exp,
-                                       ll_page_removal_cb);
         obd_fid_fini(sbi->ll_dt_exp);
 out_dt:
         obd_disconnect(sbi->ll_dt_exp);
@@ -596,7 +522,7 @@ 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, sizeof(KEY_MAX_EASIZE),
-                          KEY_MAX_EASIZE, &size, lmmsize);
+                          KEY_MAX_EASIZE, &size, lmmsize, NULL);
         if (rc)
                 CERROR("Get max mdsize error rc %d \n", rc);
 
@@ -759,6 +685,8 @@ void client_common_put_super(struct super_block *sb)
 
         ll_close_thread_shutdown(sbi->ll_lcq);
 
+        cl_sb_fini(sb);
+
         /* destroy inodes in deathrow */
         prune_deathrow(sbi, 0);
 
@@ -835,7 +763,7 @@ 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);
@@ -909,6 +837,16 @@ static int ll_options(char *options, int *flags)
                         *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);
@@ -932,7 +870,6 @@ 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);
@@ -971,7 +908,7 @@ 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
@@ -1018,15 +955,17 @@ out_free:
                 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;
@@ -1045,14 +984,14 @@ 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;
@@ -1060,12 +999,13 @@ 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);
@@ -1079,39 +1019,15 @@ 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;
@@ -1178,14 +1094,6 @@ 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);
@@ -1215,6 +1123,17 @@ 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;
 }
@@ -1227,13 +1146,13 @@ 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);
@@ -1282,7 +1201,7 @@ 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);
@@ -1295,7 +1214,7 @@ 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",
@@ -1304,86 +1223,25 @@ static int ll_setattr_done_writing(struct inode *inode,
         RETURN(rc);
 }
 
-static int ll_setattr_do_truncate(struct inode *inode, loff_t new_size)
+static int ll_setattr_do_truncate(struct inode *inode, loff_t size)
 {
-        struct ll_sb_info *sbi = ll_i2sbi(inode);
-        struct ll_inode_info *lli = ll_i2info(inode);
-        struct lov_stripe_md *lsm = lli->lli_smd;
+        struct obd_capa *capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
         int rc;
-        ldlm_policy_data_t policy = { .l_extent = {new_size,
-                                                   OBD_OBJECT_EOF } };
-        struct lustre_handle lockh = { 0 };
-        int local_lock = 0; /* 0 - no local lock;
-                             * 1 - lock taken by lock_extent;
-                             * 2 - by obd_match*/
-        int ast_flags;
-        int err;
-        ENTRY;
 
-        UNLOCK_INODE_MUTEX(inode);
-        UP_WRITE_I_ALLOC_SEM(inode);
-
-        if (sbi->ll_lockless_truncate_enable &&
-            (sbi->ll_lco.lco_flags & OBD_CONNECT_TRUNCLOCK)) {
-                ast_flags = LDLM_FL_BLOCK_GRANTED;
-                rc = obd_match(sbi->ll_dt_exp, lsm, LDLM_EXTENT,
-                               &policy, LCK_PW, &ast_flags, inode, &lockh);
-                if (rc > 0) {
-                        local_lock = 2;
-                        rc = 0;
-                } else if (rc == 0) {
-                        rc = ll_file_punch(inode, new_size, 1);
-                }
-        } else {
-                /* XXX when we fix the AST intents to pass the discard-range
-                 * XXX extent, make ast_flags always LDLM_AST_DISCARD_DATA
-                 * XXX here. */
-                ast_flags = (new_size == 0) ? LDLM_AST_DISCARD_DATA : 0;
-                rc = ll_extent_lock(NULL, inode, lsm, LCK_PW, &policy,
-                                    &lockh, ast_flags);
-                if (likely(rc == 0))
-                        local_lock = 1;
-        }
-
-        LOCK_INODE_MUTEX(inode);
-        DOWN_WRITE_I_ALLOC_SEM(inode);
-
-        if (likely(rc == 0)) {
-                /* 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);
-                if (!local_lock) {
-                        spin_lock(&lli->lli_lock);
-                        lli->lli_flags |= LLIF_SRVLOCK;
-                        spin_unlock(&lli->lli_lock);
-                }
-                rc = vmtruncate(inode, new_size);
-                if (!local_lock) {
-                        spin_lock(&lli->lli_lock);
-                        lli->lli_flags &= ~LLIF_SRVLOCK;
-                        spin_unlock(&lli->lli_lock);
-                }
-                if (rc != 0) {
-                        LASSERT(atomic_read(&lli->lli_size_sem.count) <= 0);
-                        ll_inode_size_unlock(inode, 0);
-                }
-        }
+        rc = cl_setattr_do_truncate(inode, size, capa);
+        ll_truncate_free_capa(capa);
+        return rc;
+}
 
-        if (local_lock) {
-                if (local_lock == 2)
-                        err = obd_cancel(sbi->ll_dt_exp, lsm, LCK_PW, &lockh);
-                else
-                        err = ll_extent_unlock(NULL, inode, lsm, LCK_PW, &lockh);
-                if (unlikely(err != 0)){
-                        CERROR("extent unlock failed: err=%d,"
-                               " unlock method =%d\n", err, local_lock);
-                        if (rc == 0)
-                                rc = err;
-                }
-        }
-        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
@@ -1403,7 +1261,6 @@ 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;
@@ -1426,7 +1283,8 @@ 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);
         }
 
@@ -1444,12 +1302,12 @@ 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;
         }
@@ -1482,57 +1340,18 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
         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) {
+        if (ia_valid & ATTR_SIZE)
                 rc = ll_setattr_do_truncate(inode, attr->ia_size);
-        } else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
-                obd_flag flags;
-                struct obd_info oinfo = { { { 0 } } };
-                struct obdo *oa;
-
+        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:
@@ -1546,12 +1365,20 @@ out:
 
 int ll_setattr(struct dentry *de, struct iattr *attr)
 {
-        int mode;
-
         if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
             (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);
 }
 
@@ -1574,6 +1401,9 @@ 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, flags);
         if (rc) {
@@ -1706,16 +1536,19 @@ 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)
@@ -1733,8 +1566,10 @@ 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);
@@ -1754,21 +1589,22 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
         }
 #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;
                 }
@@ -1777,6 +1613,7 @@ 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 {
@@ -1804,20 +1641,20 @@ 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 ((ll_i2mdexp(inode)->exp_connect_flags & OBD_CONNECT_SOM) &&
+                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 
+                         * 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,
@@ -1997,7 +1834,7 @@ 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);
 
@@ -2091,9 +1928,19 @@ 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;
 }
@@ -2130,7 +1977,7 @@ int ll_prep_inode(struct inode **inode,
 {
         struct ll_sb_info *sbi = NULL;
         struct lustre_md md;
-        int rc = 0;
+        int rc;
         ENTRY;
 
         LASSERT(*inode || sb);
@@ -2154,8 +2001,8 @@ int ll_prep_inode(struct inode **inode,
                  */
                 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
@@ -2164,7 +2011,8 @@ int ll_prep_inode(struct inode **inode,
                                 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);
                 }
@@ -2177,33 +2025,6 @@ 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",
-        [LLAP_ORIGIN_LOCKLESS_IO] = "ls"
-};
-
-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;
@@ -2230,7 +2051,7 @@ int ll_obd_statfs(struct inode *inode, void *arg)
                 exp = sbi->ll_md_exp;
         else if (type == LL_STATFS_LOV)
                 exp = sbi->ll_dt_exp;
-        else 
+        else
                 GOTO(out_statfs, rc = -ENODEV);
 
         rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
@@ -2247,14 +2068,14 @@ 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_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;
@@ -2262,10 +2083,12 @@ 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);
 }
 
@@ -2279,10 +2102,10 @@ 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);
 
@@ -2304,7 +2127,7 @@ struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
         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;
@@ -2319,3 +2142,31 @@ void ll_finish_md_op_data(struct md_op_data *op_data)
         capa_put(op_data->op_capa2);
         OBD_FREE_PTR(op_data);
 }
+
+int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+        struct ll_sb_info *sbi;
+
+        LASSERT((seq != NULL) && (vfs != NULL));
+        sbi = ll_s2sbi(vfs->mnt_sb);
+
+        if (sbi->ll_flags & LL_SBI_NOLCK)
+                seq_puts(seq, ",nolock");
+
+        if (sbi->ll_flags & LL_SBI_FLOCK)
+                seq_puts(seq, ",flock");
+
+        if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
+                seq_puts(seq, ",localflock");
+
+        if (sbi->ll_flags & LL_SBI_USER_XATTR)
+                seq_puts(seq, ",user_xattr");
+
+        if (sbi->ll_flags & LL_SBI_ACL)
+                seq_puts(seq, ",acl");
+
+        if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
+                seq_puts(seq, ",lazystatfs");
+
+        RETURN(0);
+}