Whamcloud - gitweb
LU-819 utils: Fix lfs getstripe -M
[fs/lustre-release.git] / lustre / llite / llite_lib.c
index 4658c10..4e49985 100644 (file)
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  */
 /*
+ * Copyright (c) 2011 Whamcloud, Inc.
+ */
+/*
  * This file is part of Lustre, http://www.lustre.org/
  * Lustre is a trademark of Sun Microsystems, Inc.
  *
@@ -42,7 +45,6 @@
 
 #include <linux/module.h>
 #include <linux/types.h>
-#include <linux/random.h>
 #include <linux/version.h>
 #include <linux/mm.h>
 
@@ -62,8 +64,13 @@ cfs_mem_cache_t *ll_file_data_slab;
 CFS_LIST_HEAD(ll_super_blocks);
 cfs_spinlock_t ll_sb_lock = CFS_SPIN_LOCK_UNLOCKED;
 
+#ifndef MS_HAS_NEW_AOPS
 extern struct address_space_operations ll_aops;
 extern struct address_space_operations ll_dir_aops;
+#else
+extern struct address_space_operations_ext ll_aops;
+extern struct address_space_operations_ext ll_dir_aops;
+#endif
 
 #ifndef log2
 #define log2(n) cfs_ffz(~(n))
@@ -116,7 +123,7 @@ static struct ll_sb_info *ll_init_sbi(void)
         cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
         cfs_spin_unlock(&ll_sb_lock);
 
-#ifdef ENABLE_LLITE_CHECKSUM
+#ifdef ENABLE_CHECKSUM
         sbi->ll_flags |= LL_SBI_CHECKSUM;
 #endif
 
@@ -133,8 +140,10 @@ static struct ll_sb_info *ll_init_sbi(void)
 
         /* metadata statahead is enabled by default */
         sbi->ll_sa_max = LL_SA_RPC_DEF;
-        atomic_set(&sbi->ll_sa_total, 0);
-        atomic_set(&sbi->ll_sa_wrong, 0);
+        cfs_atomic_set(&sbi->ll_sa_total, 0);
+        cfs_atomic_set(&sbi->ll_sa_wrong, 0);
+        cfs_atomic_set(&sbi->ll_agl_total, 0);
+        sbi->ll_flags |= LL_SBI_AGL_ENABLED;
 
         RETURN(sbi);
 }
@@ -158,13 +167,14 @@ static struct dentry_operations ll_d_root_ops = {
         .d_revalidate = ll_revalidate_nd,
 };
 
-static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
+static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
+                                    struct vfsmount *mnt)
 {
         struct inode *root = 0;
         struct ll_sb_info *sbi = ll_s2sbi(sb);
         struct obd_device *obd;
         struct obd_capa *oc = NULL;
-        struct obd_statfs osfs;
+        struct obd_statfs *osfs = NULL;
         struct ptlrpc_request *request = NULL;
         struct obd_connect_data *data = NULL;
         struct obd_uuid *uuid;
@@ -184,6 +194,12 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         if (data == NULL)
                 RETURN(-ENOMEM);
 
+        OBD_ALLOC_PTR(osfs);
+        if (osfs == NULL) {
+                OBD_FREE_PTR(data);
+                RETURN(-ENOMEM);
+        }
+
         if (proc_lustre_fs_root) {
                 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
                                                   dt, md);
@@ -193,12 +209,16 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
 
         /* 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|
-                                  OBD_CONNECT_FID      | OBD_CONNECT_AT |
-                                  OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
-                                  OBD_CONNECT_VBR      | OBD_CONNECT_SOM;
+                                  OBD_CONNECT_ATTRFID  |
+                                  OBD_CONNECT_VERSION  | OBD_CONNECT_BRW_SIZE |
+                                  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_FULL20   | OBD_CONNECT_64BITHASH;
+
+        if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
+                data->ocd_connect_flags |= OBD_CONNECT_SOM;
 
 #ifdef HAVE_LRU_RESIZE_SUPPORT
         if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
@@ -219,6 +239,9 @@ 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
+#ifdef MS_HAS_NEW_AOPS
+        sb->s_flags |= MS_HAS_NEW_AOPS;
+#endif
 
         if (sbi->ll_flags & LL_SBI_FLOCK)
                 sbi->ll_fop = &ll_file_operations_flock;
@@ -232,6 +255,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
                 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
 
+        data->ocd_brw_size = PTLRPC_MAX_BRW_SIZE;
+
         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 "
@@ -251,10 +276,35 @@ 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() - CFS_HZ, 0);
+        err = obd_statfs(obd, osfs,
+                         cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
         if (err)
                 GOTO(out_md_fid, err);
 
+        /* This needs to be after statfs to ensure connect has finished.
+         * Note that "data" does NOT contain the valid connect reply.
+         * If connecting to a 1.8 server there will be no LMV device, so
+         * we can access the MDC export directly and exp_connect_flags will
+         * be non-zero, but if accessing an upgraded 2.1 server it will
+         * have the correct flags filled in.
+         * XXX: fill in the LMV exp_connect_flags from MDC(s). */
+        valid = sbi->ll_md_exp->exp_connect_flags & CLIENT_CONNECT_MDT_REQD;
+        if (sbi->ll_md_exp->exp_connect_flags != 0 &&
+            valid != CLIENT_CONNECT_MDT_REQD) {
+                char *buf;
+
+                OBD_ALLOC_WAIT(buf, CFS_PAGE_SIZE);
+                obd_connect_flags2str(buf, CFS_PAGE_SIZE,
+                                      valid ^ CLIENT_CONNECT_MDT_REQD, ",");
+                LCONSOLE_ERROR_MSG(0x170, "Server %s does not support "
+                                   "feature(s) needed for correct operation "
+                                   "of this client (%s). Please upgrade "
+                                   "server or downgrade client.\n",
+                                   sbi->ll_md_exp->exp_obd->obd_name, buf);
+                OBD_FREE(buf, CFS_PAGE_SIZE);
+                GOTO(out_md, err = -EPROTO);
+        }
+
         size = sizeof(*data);
         err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
                            KEY_CONN_DATA,  &size, data, NULL);
@@ -263,9 +313,9 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                 GOTO(out_md, err);
         }
 
-        LASSERT(osfs.os_bsize);
-        sb->s_blocksize = osfs.os_bsize;
-        sb->s_blocksize_bits = log2(osfs.os_bsize);
+        LASSERT(osfs->os_bsize);
+        sb->s_blocksize = osfs->os_bsize;
+        sb->s_blocksize_bits = log2(osfs->os_bsize);
         sb->s_magic = LL_SUPER_MAGIC;
 
         /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
@@ -281,7 +331,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
 #else
         sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
 #endif
-        sbi->ll_namelen = osfs.os_namelen;
+        sbi->ll_namelen = osfs->os_namelen;
         sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
 
         if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
@@ -327,6 +377,14 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                 sbi->ll_flags |= LL_SBI_OSS_CAPA;
         }
 
+        if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
+                sbi->ll_flags |= LL_SBI_64BIT_HASH;
+
+        if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
+                sbi->ll_md_brw_size = data->ocd_brw_size;
+        else
+                sbi->ll_md_brw_size = CFS_PAGE_SIZE;
+
         obd = class_name2obd(dt);
         if (!obd) {
                 CERROR("DT %s: not setup or attached\n", dt);
@@ -339,7 +397,11 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                                   OBD_CONNECT_SRVLOCK   | OBD_CONNECT_TRUNCLOCK|
                                   OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
                                   OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
-                                  OBD_CONNECT_SOM;
+                                  OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH |
+                                  OBD_CONNECT_MAXBYTES;
+
+        if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
+                data->ocd_connect_flags |= OBD_CONNECT_SOM;
 
         if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
                 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
@@ -351,8 +413,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                 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;
+                        data->ocd_cksum_types = cksum_types_supported();
         }
 
 #ifdef HAVE_LRU_RESIZE_SUPPORT
@@ -367,7 +428,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
 
         obd->obd_upcall.onu_owner = &sbi->ll_lco;
         obd->obd_upcall.onu_upcall = cl_ocd_update;
-        data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
+
+        data->ocd_brw_size = PTLRPC_MAX_BRW_SIZE;
 
         err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
         if (err == -EBUSY) {
@@ -407,7 +469,9 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
 
         sb->s_op = &lustre_super_operations;
+#if THREAD_SIZE >= 8192
         sb->s_export_op = &lustre_export_operations;
+#endif
 
         /* make root inode
          * XXX: move this to after cbd setup? */
@@ -418,7 +482,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                 valid |= OBD_MD_FLACL;
 
         OBD_ALLOC_PTR(op_data);
-        if (op_data == NULL) 
+        if (op_data == NULL)
                 GOTO(out_lock_cn_cb, err = -ENOMEM);
 
         op_data->op_fid1 = sbi->ll_root_fid;
@@ -434,7 +498,6 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
                 CERROR("md_getattr failed for root: rc = %d\n", err);
                 GOTO(out_lock_cn_cb, err);
         }
-        memset(&lmd, 0, sizeof(lmd));
         err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
                                sbi->ll_md_exp, &lmd);
         if (err) {
@@ -444,7 +507,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         }
 
         LASSERT(fid_is_sane(&sbi->ll_root_fid));
-        root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid), &lmd);
+        root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, 0), &lmd);
         md_free_lustre_md(sbi->ll_md_exp, &lmd);
         ptlrpc_req_finished(request);
 
@@ -483,9 +546,6 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         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;
@@ -498,6 +558,12 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
         uuid = obd_get_uuid(sbi->ll_md_exp);
         if (uuid != NULL)
                 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
+        sbi->ll_mnt = mnt;
+
+        if (data != NULL)
+                OBD_FREE_PTR(data);
+        if (osfs != NULL)
+                OBD_FREE_PTR(osfs);
 
         RETURN(err);
 out_root:
@@ -516,6 +582,8 @@ out_md:
 out:
         if (data != NULL)
                 OBD_FREE_PTR(data);
+        if (osfs != NULL)
+                OBD_FREE_PTR(osfs);
         lprocfs_unregister_mountpoint(sbi);
         return err;
 }
@@ -705,17 +773,25 @@ static int ll_options(char *options, int *flags)
                         *flags &= ~tmp;
                         goto next;
                 }
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,5,50,0)
                 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
                 if (tmp) {
                         /* Ignore deprecated mount option.  The client will
                          * always try to mount with ACL support, whether this
                          * is used depends on whether server supports it. */
+                        LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
+                                                  "mount option 'acl'.\n");
                         goto next;
                 }
                 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
                 if (tmp) {
+                        LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
+                                                  "mount option 'noacl'.\n");
                         goto next;
                 }
+#else
+#warning "{no}acl options have been deprecated since 1.8, please remove them"
+#endif
                 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
                 if (tmp) {
                         *flags |= tmp;
@@ -752,6 +828,16 @@ static int ll_options(char *options, int *flags)
                         *flags &= ~tmp;
                         goto next;
                 }
+                tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
+                if (tmp) {
+                        *flags |= tmp;
+                        goto next;
+                }
+                tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
+                if (tmp) {
+                        *flags |= tmp;
+                        goto next;
+                }
 
                 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
                                    s1);
@@ -770,46 +856,97 @@ next:
 void ll_lli_init(struct ll_inode_info *lli)
 {
         lli->lli_inode_magic = LLI_INODE_MAGIC;
-        cfs_sema_init(&lli->lli_size_sem, 1);
-        cfs_sema_init(&lli->lli_write_sem, 1);
-        cfs_sema_init(&lli->lli_trunc_sem, 1);
         lli->lli_flags = 0;
-        lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
+        lli->lli_ioepoch = 0;
         cfs_spin_lock_init(&lli->lli_lock);
-        CFS_INIT_LIST_HEAD(&lli->lli_close_list);
-        lli->lli_inode_magic = LLI_INODE_MAGIC;
-        cfs_sema_init(&lli->lli_och_sem, 1);
-        lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
-        lli->lli_mds_exec_och = NULL;
-        lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
-        lli->lli_open_fd_exec_count = 0;
-        CFS_INIT_LIST_HEAD(&lli->lli_dead_list);
+        lli->lli_posix_acl = NULL;
         lli->lli_remote_perms = NULL;
-        lli->lli_rmtperm_utime = 0;
         cfs_sema_init(&lli->lli_rmtperm_sem, 1);
+        /* Do not set lli_fid, it has been initialized already. */
+        fid_zero(&lli->lli_pfid);
+        CFS_INIT_LIST_HEAD(&lli->lli_close_list);
         CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
+        cfs_atomic_set(&lli->lli_open_count, 0);
+        lli->lli_mds_capa = NULL;
+        lli->lli_rmtperm_time = 0;
+        lli->lli_pending_och = NULL;
+        lli->lli_mds_read_och = NULL;
+        lli->lli_mds_write_och = NULL;
+        lli->lli_mds_exec_och = NULL;
+        lli->lli_open_fd_read_count = 0;
+        lli->lli_open_fd_write_count = 0;
+        lli->lli_open_fd_exec_count = 0;
+        cfs_sema_init(&lli->lli_och_sem, 1);
+        cfs_spin_lock_init(&lli->lli_agl_lock);
+        lli->lli_smd = NULL;
+        lli->lli_clob = NULL;
+
+        LASSERT(lli->lli_vfs_inode.i_mode != 0);
+        if (S_ISDIR(lli->lli_vfs_inode.i_mode)) {
+                cfs_sema_init(&lli->lli_readdir_sem, 1);
+                lli->lli_opendir_key = NULL;
+                lli->lli_sai = NULL;
+                lli->lli_sa_pos = 0;
+                lli->lli_def_acl = NULL;
+                cfs_spin_lock_init(&lli->lli_sa_lock);
+                lli->lli_opendir_pid = 0;
+        } else {
+                cfs_sema_init(&lli->lli_size_sem, 1);
+                lli->lli_size_sem_owner = NULL;
+                lli->lli_symlink_name = NULL;
+                lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
+                cfs_init_rwsem(&lli->lli_trunc_sem);
+                cfs_sema_init(&lli->lli_write_sem, 1);
+                lli->lli_async_rc = 0;
+                lli->lli_write_rc = 0;
+                cfs_init_rwsem(&lli->lli_glimpse_sem);
+                lli->lli_glimpse_time = 0;
+                CFS_INIT_LIST_HEAD(&lli->lli_agl_list);
+                lli->lli_agl_index = 0;
+        }
 }
 
-int ll_fill_super(struct super_block *sb)
+static inline int ll_bdi_register(struct backing_dev_info *bdi)
 {
-        struct lustre_profile *lprof;
+#ifdef HAVE_BDI_REGISTER
+        static atomic_t ll_bdi_num = ATOMIC_INIT(0);
+
+#ifdef HAVE_BDI_NAME
+        bdi->name = "lustre";
+#endif
+        return bdi_register(bdi, NULL, "lustre-%d",
+                            atomic_inc_return(&ll_bdi_num));
+#else
+        return 0;
+#endif
+}
+
+int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
+{
+        struct lustre_profile *lprof = NULL;
         struct lustre_sb_info *lsi = s2lsi(sb);
         struct ll_sb_info *sbi;
         char  *dt = NULL, *md = NULL;
         char  *profilenm = get_profile_name(sb);
-        struct config_llog_instance cfg = {0, };
-        char   ll_instance[sizeof(sb) * 2 + 1];
+        struct config_llog_instance *cfg;
+        /* %p for void* in printf needs 16+2 characters: 0xffffffffffffffff */
+        const int instlen = sizeof(cfg->cfg_instance) * 2 + 2;
         int    err;
         ENTRY;
 
         CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
 
+        OBD_ALLOC_PTR(cfg);
+        if (cfg == NULL)
+                RETURN(-ENOMEM);
+
         cfs_module_get();
 
         /* client additional sb info */
         lsi->lsi_llsbi = sbi = ll_init_sbi();
         if (!sbi) {
                 cfs_module_put(THIS_MODULE);
+                OBD_FREE_PTR(cfg);
                 RETURN(-ENOMEM);
         }
 
@@ -817,20 +954,33 @@ int ll_fill_super(struct super_block *sb)
         if (err)
                 GOTO(out_free, err);
 
+        err = ll_bdi_init(&lsi->lsi_bdi);
+        if (err)
+                GOTO(out_free, err);
+        lsi->lsi_flags |= LSI_BDI_INITIALIZED;
+        lsi->lsi_bdi.capabilities = BDI_CAP_MAP_COPY;
+        err = ll_bdi_register(&lsi->lsi_bdi);
+        if (err)
+                GOTO(out_free, err);
+
+#ifdef HAVE_SB_BDI
+        sb->s_bdi = &lsi->lsi_bdi;
+#endif
+
         /* Generate a string unique to this super, in case some joker tries
            to mount the same fs at two mount points.
            Use the address of the super itself.*/
-        sprintf(ll_instance, "%p", sb);
-        cfg.cfg_instance = ll_instance;
-        cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
+        cfg->cfg_instance = sb;
+        cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
 
         /* set up client obds */
-        err = lustre_process_log(sb, profilenm, &cfg);
+        err = lustre_process_log(sb, profilenm, cfg);
         if (err < 0) {
                 CERROR("Unable to process log: %d\n", err);
                 GOTO(out_free, err);
         }
 
+        /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
         lprof = class_get_profile(profilenm);
         if (lprof == NULL) {
                 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
@@ -841,31 +991,30 @@ int ll_fill_super(struct super_block *sb)
         CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
                lprof->lp_md, lprof->lp_dt);
 
-        OBD_ALLOC(dt, strlen(lprof->lp_dt) +
-                  strlen(ll_instance) + 2);
+        OBD_ALLOC(dt, strlen(lprof->lp_dt) + instlen + 2);
         if (!dt)
                 GOTO(out_free, err = -ENOMEM);
-        sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
+        sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
 
-        OBD_ALLOC(md, strlen(lprof->lp_md) +
-                  strlen(ll_instance) + 2);
+        OBD_ALLOC(md, strlen(lprof->lp_md) + instlen + 2);
         if (!md)
                 GOTO(out_free, err = -ENOMEM);
-        sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
+        sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance);
 
         /* connections, registrations, sb setup */
-        err = client_common_fill_super(sb, md, dt);
+        err = client_common_fill_super(sb, md, dt, mnt);
 
 out_free:
         if (md)
-                OBD_FREE(md, strlen(md) + 1);
+                OBD_FREE(md, strlen(lprof->lp_md) + instlen + 2);
         if (dt)
-                OBD_FREE(dt, strlen(dt) + 1);
+                OBD_FREE(dt, strlen(lprof->lp_dt) + instlen + 2);
         if (err)
                 ll_put_super(sb);
         else
                 LCONSOLE_WARN("Client %s has started\n", profilenm);
 
+        OBD_FREE_PTR(cfg);
         RETURN(err);
 } /* ll_fill_super */
 
@@ -875,7 +1024,6 @@ void lu_context_keys_dump(void);
 void ll_put_super(struct super_block *sb)
 {
         struct config_llog_instance cfg;
-        char   ll_instance[sizeof(sb) * 2 + 1];
         struct obd_device *obd;
         struct lustre_sb_info *lsi = s2lsi(sb);
         struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -887,9 +1035,8 @@ void ll_put_super(struct super_block *sb)
 
         ll_print_capa_stat(sbi);
 
-        sprintf(ll_instance, "%p", sb);
-        cfg.cfg_instance = ll_instance;
-        lustre_end_log(sb, NULL, &cfg);
+        cfg.cfg_instance = sb;
+        lustre_end_log(sb, profilenm, &cfg);
 
         if (sbi->ll_md_exp) {
                 obd = class_exp2obd(sbi->ll_md_exp);
@@ -920,6 +1067,11 @@ void ll_put_super(struct super_block *sb)
         if (profilenm)
                 class_del_profile(profilenm);
 
+        if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
+                ll_bdi_destroy(&lsi->lsi_bdi);
+                lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
+        }
+
         ll_free_sbi(sb);
         lsi->lsi_llsbi = NULL;
 
@@ -927,7 +1079,7 @@ void ll_put_super(struct super_block *sb)
 
         cl_env_cache_purge(~0);
 
-        LCONSOLE_WARN("client %s umount complete\n", ll_instance);
+        LCONSOLE_WARN("client %p umount complete\n", cfg.cfg_instance);
 
         cfs_module_put(THIS_MODULE);
 
@@ -945,11 +1097,10 @@ struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
                         inode = igrab(lock->l_ast_data);
                 } else {
                         inode = lock->l_ast_data;
-                        ldlm_lock_debug(NULL, inode->i_state & I_FREEING ?
-                                                D_INFO : D_WARNING,
-                                        lock, __FILE__, __func__, __LINE__,
-                                        "l_ast_data %p is bogus: magic %08x",
-                                        lock->l_ast_data, lli->lli_inode_magic);
+                        LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ?  D_INFO :
+                                         D_WARNING, lock, "l_ast_data %p is "
+                                         "bogus: magic %08x", lock->l_ast_data,
+                                         lli->lli_inode_magic);
                         inode = NULL;
                 }
         }
@@ -980,8 +1131,8 @@ void ll_clear_inode(struct inode *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_sai == NULL);
                 LASSERT(lli->lli_opendir_pid == 0);
         }
 
@@ -1000,7 +1151,7 @@ void ll_clear_inode(struct inode *inode)
         if (lli->lli_mds_read_och)
                 ll_md_real_close(inode, FMODE_READ);
 
-        if (lli->lli_symlink_name) {
+        if (S_ISLNK(inode->i_mode) && lli->lli_symlink_name) {
                 OBD_FREE(lli->lli_symlink_name,
                          strlen(lli->lli_symlink_name) + 1);
                 lli->lli_symlink_name = NULL;
@@ -1024,6 +1175,9 @@ void ll_clear_inode(struct inode *inode)
         lli->lli_inode_magic = LLI_INODE_DEAD;
 
         ll_clear_inode_capas(inode);
+        if (!S_ISDIR(inode->i_mode))
+                LASSERT(cfs_list_empty(&lli->lli_agl_list));
+
         /*
          * XXX This has to be done before lsm is freed below, because
          * cl_object still uses inode lsm.
@@ -1039,10 +1193,11 @@ void ll_clear_inode(struct inode *inode)
         EXIT;
 }
 
-int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
+int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
                   struct md_open_data **mod)
 {
         struct lustre_md md;
+        struct inode *inode = dentry->d_inode;
         struct ll_sb_info *sbi = ll_i2sbi(inode);
         struct ptlrpc_request *request = NULL;
         int rc;
@@ -1063,7 +1218,7 @@ int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
                          * Pretend we done everything. */
                         if (!S_ISREG(inode->i_mode) &&
                             !S_ISDIR(inode->i_mode))
-                                rc = inode_setattr(inode, &op_data->op_attr);
+                                rc = simple_setattr(dentry, &op_data->op_attr);
                 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
                         CERROR("md_setattr fails: rc = %d\n", rc);
                 }
@@ -1082,7 +1237,7 @@ int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
          * above to avoid invoking vmtruncate, otherwise it is important
          * to call vmtruncate in inode_setattr to update inode->i_size
          * (bug 6196) */
-        rc = inode_setattr(inode, &op_data->op_attr);
+        rc = simple_setattr(dentry, &op_data->op_attr);
 
         /* Extract epoch data if obtained. */
         op_data->op_handle = md.body->handle;
@@ -1126,23 +1281,22 @@ static int ll_setattr_done_writing(struct inode *inode,
         RETURN(rc);
 }
 
-static int ll_setattr_do_truncate(struct inode *inode, loff_t size)
+static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
 {
-        struct obd_capa *capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
+        struct obd_capa *capa;
         int rc;
 
-        rc = cl_setattr_do_truncate(inode, size, capa);
-        ll_truncate_free_capa(capa);
-        return rc;
-}
+        if (attr->ia_valid & ATTR_SIZE)
+                capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
+        else
+                capa = ll_mdscapa_get(inode);
 
-static int ll_setattr_ost(struct inode *inode)
-{
-        struct obd_capa *capa = ll_mdscapa_get(inode);
-        int rc;
+        rc = cl_setattr_ost(inode, attr, capa);
 
-        rc = cl_setattr_ost(inode, capa);
-        capa_put(capa);
+        if (attr->ia_valid & ATTR_SIZE)
+                ll_truncate_free_capa(capa);
+        else
+                capa_put(capa);
 
         return rc;
 }
@@ -1160,8 +1314,9 @@ static int ll_setattr_ost(struct inode *inode)
  * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
  * at the same time.
  */
-int ll_setattr_raw(struct inode *inode, struct iattr *attr)
+int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
 {
+        struct inode *inode = dentry->d_inode;
         struct ll_inode_info *lli = ll_i2info(inode);
         struct lov_stripe_md *lsm = lli->lli_smd;
         struct md_op_data *op_data = NULL;
@@ -1204,16 +1359,6 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
                 attr->ia_mtime = CFS_CURRENT_TIME;
                 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 mds. */
-                rc = cl_glimpse_size(inode);
-                if (rc)
-                        RETURN(rc);
-
-                attr->ia_valid |= ATTR_MTIME_SET | ATTR_MTIME;
-                attr->ia_mtime = inode->i_mtime;
-        }
 
         if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
                 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
@@ -1235,7 +1380,8 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
         UNLOCK_INODE_MUTEX(inode);
         if (ia_valid & ATTR_SIZE)
                 UP_WRITE_I_ALLOC_SEM(inode);
-        cfs_down(&lli->lli_trunc_sem);
+        if (!S_ISDIR(inode->i_mode))
+                cfs_down_write(&lli->lli_trunc_sem);
         LOCK_INODE_MUTEX(inode);
         if (ia_valid & ATTR_SIZE)
                 DOWN_WRITE_I_ALLOC_SEM(inode);
@@ -1243,10 +1389,11 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
         memcpy(&op_data->op_attr, attr, sizeof(*attr));
 
         /* Open epoch for truncate. */
-        if (exp_connect_som(ll_i2mdexp(inode)) && (ia_valid & ATTR_SIZE))
+        if (exp_connect_som(ll_i2mdexp(inode)) &&
+            (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
                 op_data->op_flags = MF_EPOCH_OPEN;
 
-        rc = ll_md_setattr(inode, op_data, &mod);
+        rc = ll_md_setattr(dentry, op_data, &mod);
         if (rc)
                 GOTO(out, rc);
 
@@ -1257,12 +1404,17 @@ int ll_setattr_raw(struct inode *inode, struct iattr *attr)
         }
 
         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));
-                rc = ll_setattr_ost(inode);
-        }
+                attr->ia_valid |= ATTR_SIZE;
+        if (ia_valid & (ATTR_SIZE |
+                        ATTR_ATIME | ATTR_ATIME_SET |
+                        ATTR_MTIME | ATTR_MTIME_SET))
+                /* on truncate and utimes send attributes to osts, setting
+                 * mtime/atime to past will be performed under PW 0:EOF extent
+                 * lock (new_size:EOF for truncate)
+                 * it may seem excessive to send mtime/atime updates to osts
+                 * when not setting times to past, but it is necessary due to
+                 * possible time de-synchronization */
+                rc = ll_setattr_ost(inode, attr);
         EXIT;
 out:
         if (op_data) {
@@ -1270,27 +1422,37 @@ out:
                         rc1 = ll_setattr_done_writing(inode, op_data, mod);
                 ll_finish_md_op_data(op_data);
         }
-        cfs_up(&lli->lli_trunc_sem);
+        if (!S_ISDIR(inode->i_mode))
+                cfs_up_write(&lli->lli_trunc_sem);
         return rc ? rc : rc1;
 }
 
 int ll_setattr(struct dentry *de, struct iattr *attr)
 {
+        int mode = de->d_inode->i_mode;
+
         if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
-            (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) &&
+        if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
+                               (ATTR_SIZE|ATTR_MODE)) &&
+            (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
+             (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
+              !(attr->ia_mode & S_ISGID))))
+                attr->ia_valid |= ATTR_FORCE;
+
+        if ((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)) &&
+        if (((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);
+        return ll_setattr_raw(de, attr);
 }
 
 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
@@ -1357,10 +1519,10 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
         CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
         ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
 
-        /* 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, 0);
+        /* Some amount of caching on the client is allowed */
+        rc = ll_statfs_internal(sb, &osfs,
+                                cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                                0);
         if (rc)
                 return rc;
 
@@ -1392,6 +1554,8 @@ void ll_inode_size_lock(struct inode *inode, int lock_lsm)
         struct ll_inode_info *lli;
         struct lov_stripe_md *lsm;
 
+        LASSERT(!S_ISDIR(inode->i_mode));
+
         lli = ll_i2info(inode);
         LASSERT(lli->lli_size_sem_owner != current);
         cfs_down(&lli->lli_size_sem);
@@ -1429,6 +1593,8 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 
         LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
         if (lsm != NULL) {
+                LASSERT(S_ISREG(inode->i_mode));
+
                 cfs_down(&lli->lli_och_sem);
                 if (lli->lli_smd == NULL) {
                         if (lsm->lsm_magic != LOV_MAGIC_V1 &&
@@ -1438,12 +1604,14 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                         }
                         CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
                                lsm, inode->i_ino, inode->i_generation, inode);
-                        /* cl_inode_init must go before lli_smd or a race is
-                         * possible where client thinks the file has stripes,
+                        /* cl_file_inode_init must go before lli_smd or a race
+                         * is possible where client thinks the file has stripes,
                          * but lov raid0 is not setup yet and parallel e.g.
                          * glimpse would try to use uninitialized lov */
-                        cl_inode_init(inode, md);
+                        cl_file_inode_init(inode, md);
+                        cfs_spin_lock(&lli->lli_lock);
                         lli->lli_smd = lsm;
+                        cfs_spin_unlock(&lli->lli_lock);
                         cfs_up(&lli->lli_och_sem);
                         lli->lli_maxbytes = lsm->lsm_maxbytes;
                         if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
@@ -1480,26 +1648,27 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                 cfs_spin_unlock(&lli->lli_lock);
         }
 #endif
-        inode->i_ino = cl_fid_build_ino(&body->fid1);
+        inode->i_ino = cl_fid_build_ino(&body->fid1, 0);
         inode->i_generation = cl_fid_build_gen(&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
-           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,
+        if (body->valid & OBD_MD_FLATIME) {
+                if (body->atime > LTIME_S(inode->i_atime))
+                        LTIME_S(inode->i_atime) = body->atime;
+                lli->lli_lvb.lvb_atime = body->atime;
+        }
+        if (body->valid & OBD_MD_FLMTIME) {
+                if (body->mtime > LTIME_S(inode->i_mtime)) {
+                        CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
+                               "to "LPU64"\n", inode->i_ino,
                                LTIME_S(inode->i_mtime), body->mtime);
                         LTIME_S(inode->i_mtime) = body->mtime;
                 }
+                lli->lli_lvb.lvb_mtime = body->mtime;
+        }
+        if (body->valid & OBD_MD_FLCTIME) {
+                if (body->ctime > LTIME_S(inode->i_ctime))
+                        LTIME_S(inode->i_ctime) = body->ctime;
+                lli->lli_lvb.lvb_ctime = body->ctime;
         }
         if (body->valid & OBD_MD_FLMODE)
                 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
@@ -1555,14 +1724,14 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                                 if (lli->lli_flags & (LLIF_DONE_WRITING |
                                                       LLIF_EPOCH_PENDING |
                                                       LLIF_SOM_DIRTY)) {
-                                        CERROR("ino %lu flags %lu still has "
+                                        CERROR("ino %lu flags %u 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;
+                                        i_size_write(inode, body->size);
                                         lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
                                 }
                                 ldlm_lock_decref(&lockh, mode);
@@ -1570,7 +1739,10 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                 } else {
                         /* Use old size assignment to avoid
                          * deadlock bz14138 & bz14326 */
-                        inode->i_size = body->size;
+                        i_size_write(inode, body->size);
+
+                        CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
+                               inode->i_ino, (unsigned long long)body->size);
                 }
 
                 if (body->valid & OBD_MD_FLBLOCKS)
@@ -1587,25 +1759,14 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
         }
 }
 
-static struct backing_dev_info ll_backing_dev_info = {
-        .ra_pages       = 0,    /* No readahead */
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12))
-        .capabilities   = 0,    /* Does contribute to dirty memory */
-#else
-        .memory_backed  = 0,    /* Does contribute to dirty memory */
-#endif
-};
-
 void ll_read_inode2(struct inode *inode, void *opaque)
 {
         struct lustre_md *md = opaque;
         struct ll_inode_info *lli = ll_i2info(inode);
         ENTRY;
 
-        CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
-               inode->i_ino, inode->i_generation, inode);
-
-        ll_lli_init(lli);
+        CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
+               PFID(&lli->lli_fid), inode);
 
         LASSERT(!lli->lli_smd);
 
@@ -1621,16 +1782,20 @@ void ll_read_inode2(struct inode *inode, void *opaque)
 
         /* OIDEBUG(inode); */
 
+        /* initializing backing dev info. */
+        inode->i_mapping->backing_dev_info = &s2lsi(inode->i_sb)->lsi_bdi;
+
+
         if (S_ISREG(inode->i_mode)) {
                 struct ll_sb_info *sbi = ll_i2sbi(inode);
                 inode->i_op = &ll_file_inode_operations;
                 inode->i_fop = sbi->ll_fop;
-                inode->i_mapping->a_ops = &ll_aops;
+                inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
                 EXIT;
         } else if (S_ISDIR(inode->i_mode)) {
                 inode->i_op = &ll_dir_inode_operations;
                 inode->i_fop = &ll_dir_operations;
-                inode->i_mapping->a_ops = &ll_dir_aops;
+                inode->i_mapping->a_ops = (struct address_space_operations *)&ll_dir_aops;
                 EXIT;
         } else if (S_ISLNK(inode->i_mode)) {
                 inode->i_op = &ll_fast_symlink_inode_operations;
@@ -1641,9 +1806,6 @@ void ll_read_inode2(struct inode *inode, void *opaque)
                 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;
-
                 EXIT;
         }
 }
@@ -1655,11 +1817,29 @@ void ll_delete_inode(struct inode *inode)
         ENTRY;
 
         rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
-        if (rc) {
+        if (rc)
                 CERROR("fid_delete() failed, rc %d\n", rc);
-        }
+
         truncate_inode_pages(&inode->i_data, 0);
+
+        /* Workaround for LU-118 */
+        if (inode->i_data.nrpages) {
+                TREE_READ_LOCK_IRQ(&inode->i_data);
+                TREE_READ_UNLOCK_IRQ(&inode->i_data);
+                LASSERTF(inode->i_data.nrpages == 0,
+                         "inode=%lu/%u(%p) nrpages=%lu, see "
+                         "http://jira.whamcloud.com/browse/LU-118\n",
+                         inode->i_ino, inode->i_generation, inode,
+                         inode->i_data.nrpages);
+        }
+        /* Workaround end */
+
+#ifdef HAVE_SBOPS_EVICT_INODE
+        ll_clear_inode(inode);
+        end_writeback(inode);
+#else
         clear_inode(inode);
+#endif
 
         EXIT;
 }
@@ -1680,8 +1860,8 @@ int ll_iocontrol(struct inode *inode, struct file *file,
                 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
                                              0, 0, LUSTRE_OPC_ANY,
                                              NULL);
-                if (op_data == NULL)
-                        RETURN(-ENOMEM);
+                if (IS_ERR(op_data))
+                        RETURN(PTR_ERR(op_data));
 
                 op_data->op_valid = OBD_MD_FLFLAGS;
                 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
@@ -1734,14 +1914,13 @@ 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_seq = lsm->lsm_object_seq;
                 oinfo.oi_oa->o_flags = flags;
                 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
                                        OBD_MD_FLGROUP;
                 oinfo.oi_capa = ll_mdscapa_get(inode);
-
                 obdo_from_inode(oinfo.oi_oa, inode,
-                                OBD_MD_FLFID | OBD_MD_FLGENER);
+                                &ll_i2info(inode)->lli_fid, 0);
                 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
                 capa_put(oinfo.oi_capa);
                 OBDO_FREE(oinfo.oi_oa);
@@ -1892,8 +2071,6 @@ int ll_prep_inode(struct inode **inode,
 
         LASSERT(*inode || sb);
         sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
-        memset(&md, 0, sizeof(struct lustre_md));
-
         rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
                               sbi->ll_md_exp, &md);
         if (rc)
@@ -1910,7 +2087,7 @@ int ll_prep_inode(struct inode **inode,
                  */
                 LASSERT(fid_is_sane(&md.body->fid1));
 
-                *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1), &md);
+                *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, 0), &md);
                 if (*inode == NULL || IS_ERR(*inode)) {
                         if (md.lsm)
                                 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
@@ -1960,7 +2137,7 @@ int ll_obd_statfs(struct inode *inode, void *arg)
                 GOTO(out_statfs, rc = -EINVAL);
 
         memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
-        if (type == LL_STATFS_MDC)
+        if (type == LL_STATFS_LMV)
                 exp = sbi->ll_md_exp;
         else if (type == LL_STATFS_LOV)
                 exp = sbi->ll_dt_exp;
@@ -2046,6 +2223,21 @@ struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
         op_data->op_mds = 0;
         op_data->op_data = data;
 
+        /* If the file is being opened after mknod() (normally due to NFS)
+         * try to use the default stripe data from parent directory for
+         * allocating OST objects.  Try to pass the parent FID to MDS. */
+        if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
+            ll_i2info(i2)->lli_smd == NULL) {
+                struct ll_inode_info *lli = ll_i2info(i2);
+
+                cfs_spin_lock(&lli->lli_lock);
+                if (likely(lli->lli_smd == NULL &&
+                           !fid_is_zero(&lli->lli_pfid)))
+                        op_data->op_fid1 = lli->lli_pfid;
+                cfs_spin_unlock(&lli->lli_lock);
+                /** We ignore parent's capability temporary. */
+        }
+
         return op_data;
 }
 
@@ -2075,11 +2267,34 @@ int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
         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);
 }
+
+/**
+ * Get obd name by cmd, and copy out to user space
+ */
+int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg)
+{
+        struct ll_sb_info *sbi = ll_i2sbi(inode);
+        struct obd_device *obd;
+        ENTRY;
+
+        if (cmd == OBD_IOC_GETDTNAME)
+                obd = class_exp2obd(sbi->ll_dt_exp);
+        else if (cmd == OBD_IOC_GETMDNAME)
+                obd = class_exp2obd(sbi->ll_md_exp);
+        else
+                RETURN(-EINVAL);
+
+        if (!obd)
+                RETURN(-ENOENT);
+
+        if (cfs_copy_to_user((void *)arg, obd->obd_name,
+                             strlen(obd->obd_name) + 1))
+                RETURN(-EFAULT);
+
+        RETURN(0);
+}