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LU-4217 build: bump build warnings to 2.7 development
[fs/lustre-release.git] / lustre / llite / llite_lib.c
index 43eb25a..eef54b1 100644 (file)
@@ -93,19 +93,18 @@ static struct ll_sb_info *ll_init_sbi(void)
 
         si_meminfo(&si);
         pages = si.totalram - si.totalhigh;
-       if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) {
-               lru_page_max = pages / 2;
-       } else {
-               lru_page_max = (pages / 4) * 3;
-       }
+       lru_page_max = pages / 2;
 
-       /* initialize lru data */
+       /* initialize ll_cache data */
        cfs_atomic_set(&sbi->ll_cache.ccc_users, 0);
        sbi->ll_cache.ccc_lru_max = lru_page_max;
        cfs_atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max);
        spin_lock_init(&sbi->ll_cache.ccc_lru_lock);
        CFS_INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru);
 
+       cfs_atomic_set(&sbi->ll_cache.ccc_unstable_nr, 0);
+       init_waitqueue_head(&sbi->ll_cache.ccc_unstable_waitq);
+
         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;
@@ -208,7 +207,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                                  OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
                                  OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS |
                                  OBD_CONNECT_MAX_EASIZE |
-                                 OBD_CONNECT_FLOCK_DEAD;
+                                 OBD_CONNECT_FLOCK_DEAD |
+                                 OBD_CONNECT_DISP_STRIPE;
 
         if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
                 data->ocd_connect_flags |= OBD_CONNECT_SOM;
@@ -379,10 +379,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
        else
                sbi->ll_md_brw_size = PAGE_CACHE_SIZE;
 
-       if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) {
-               LCONSOLE_INFO("Layout lock feature supported.\n");
+       if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK)
                sbi->ll_flags |= LL_SBI_LAYOUT_LOCK;
-       }
 
        if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) {
                if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) {
@@ -590,10 +588,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
         /* 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) {
+       if (uuid != NULL)
                sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
-               get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid);
-       }
 
         if (data != NULL)
                 OBD_FREE_PTR(data);
@@ -657,8 +653,10 @@ void ll_dump_inode(struct inode *inode)
        ll_d_hlist_for_each(tmp, &inode->i_dentry)
                dentry_count++;
 
-       CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
-              inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
+       CERROR("%s: inode %p dump: dev=%s fid="DFID
+              " mode=%o count=%u, %d dentries\n",
+              ll_get_fsname(inode->i_sb, NULL, 0), inode,
+              ll_i2mdexp(inode)->exp_obd->obd_name, PFID(ll_inode2fid(inode)),
               inode->i_mode, atomic_read(&inode->i_count), dentry_count);
 }
 
@@ -676,7 +674,7 @@ void lustre_dump_dentry(struct dentry *dentry, int recur)
                " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
                dentry->d_name.len, dentry->d_name.name,
                dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
-              dentry->d_parent, dentry->d_inode, d_refcount(dentry),
+              dentry->d_parent, dentry->d_inode, d_count(dentry),
                dentry->d_flags, dentry->d_fsdata, subdirs);
         if (dentry->d_inode != NULL)
                 ll_dump_inode(dentry->d_inode);
@@ -821,22 +819,22 @@ 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;
-                }
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 6, 51, 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
@@ -1005,15 +1003,15 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
         if (cfg == NULL)
                 RETURN(-ENOMEM);
 
-        cfs_module_get();
+       try_module_get(THIS_MODULE);
 
-        /* client additional sb info */
-        lsi->lsi_llsbi = sbi = ll_init_sbi();
-        if (!sbi) {
-                cfs_module_put(THIS_MODULE);
-                OBD_FREE_PTR(cfg);
-                RETURN(-ENOMEM);
-        }
+       /* client additional sb info */
+       lsi->lsi_llsbi = sbi = ll_init_sbi();
+       if (!sbi) {
+               module_put(THIS_MODULE);
+               OBD_FREE_PTR(cfg);
+               RETURN(-ENOMEM);
+       }
 
         err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
         if (err)
@@ -1095,7 +1093,7 @@ void ll_put_super(struct super_block *sb)
         struct lustre_sb_info *lsi = s2lsi(sb);
         struct ll_sb_info *sbi = ll_s2sbi(sb);
         char *profilenm = get_profile_name(sb);
-        int force = 1, next;
+       int ccc_count, next, force = 1, rc = 0;
         ENTRY;
 
         CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
@@ -1114,6 +1112,19 @@ void ll_put_super(struct super_block *sb)
                         force = obd->obd_force;
         }
 
+       /* Wait for unstable pages to be committed to stable storage */
+       if (force == 0) {
+               struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+               rc = l_wait_event(sbi->ll_cache.ccc_unstable_waitq,
+                       cfs_atomic_read(&sbi->ll_cache.ccc_unstable_nr) == 0,
+                       &lwi);
+       }
+
+       ccc_count = cfs_atomic_read(&sbi->ll_cache.ccc_unstable_nr);
+       if (force == 0 && rc != -EINTR)
+               LASSERTF(ccc_count == 0, "count: %i\n", ccc_count);
+
+
         /* 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) {
@@ -1148,11 +1159,13 @@ void ll_put_super(struct super_block *sb)
         ll_free_sbi(sb);
         lsi->lsi_llsbi = NULL;
 
-        lustre_common_put_super(sb);
+       lustre_common_put_super(sb);
 
-        cfs_module_put(THIS_MODULE);
+       cl_env_cache_purge(~0);
 
-        EXIT;
+       module_put(THIS_MODULE);
+
+       EXIT;
 } /* client_put_super */
 
 struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
@@ -1208,8 +1221,8 @@ void ll_clear_inode(struct inode *inode)
         struct ll_sb_info *sbi = ll_i2sbi(inode);
         ENTRY;
 
-        CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
-               inode->i_generation, inode);
+       CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
+              PFID(ll_inode2fid(inode)), inode);
 
         if (S_ISDIR(inode->i_mode)) {
                 /* these should have been cleared in ll_file_release */
@@ -1359,8 +1372,9 @@ static int ll_setattr_done_writing(struct inode *inode,
                  * from OSTs and send setattr to back to MDS. */
                 rc = ll_som_update(inode, op_data);
         } else if (rc) {
-                CERROR("inode %lu mdc truncate failed: rc = %d\n",
-                       inode->i_ino, rc);
+               CERROR("%s: inode "DFID" mdc truncate failed: rc = %d\n",
+                      ll_i2sbi(inode)->ll_md_exp->exp_obd->obd_name,
+                      PFID(ll_inode2fid(inode)), rc);
         }
         RETURN(rc);
 }
@@ -1407,14 +1421,14 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
         struct md_op_data *op_data = NULL;
         struct md_open_data *mod = NULL;
        bool file_is_released = false;
-        int rc = 0, rc1 = 0;
-        ENTRY;
+       int rc = 0, rc1 = 0;
+       ENTRY;
 
-       CDEBUG(D_VFSTRACE, "%s: setattr inode %p/fid:"DFID" from %llu to %llu, "
-               "valid %x, hsm_import %d\n",
-               ll_get_fsname(inode->i_sb, NULL, 0), inode,
-               PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size,
-               attr->ia_valid, hsm_import);
+       CDEBUG(D_VFSTRACE, "%s: setattr inode "DFID"(%p) from %llu to %llu, "
+              "valid %x, hsm_import %d\n",
+              ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid),
+              inode, i_size_read(inode), attr->ia_size, attr->ia_valid,
+              hsm_import);
 
        if (attr->ia_valid & ATTR_SIZE) {
                 /* Check new size against VFS/VM file size limit and rlimit */
@@ -1435,12 +1449,12 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
                 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
         }
 
-        /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
+       /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
        if (attr->ia_valid & TIMES_SET_FLAGS) {
-                if (cfs_curproc_fsuid() != inode->i_uid &&
-                    !cfs_capable(CFS_CAP_FOWNER))
-                        RETURN(-EPERM);
-        }
+               if (current_fsuid() != inode->i_uid &&
+                   !cfs_capable(CFS_CAP_FOWNER))
+                       RETURN(-EPERM);
+       }
 
         /* We mark all of the fields "set" so MDS/OST does not re-set them */
         if (attr->ia_valid & ATTR_CTIME) {
@@ -1463,14 +1477,6 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
                        LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
                        cfs_time_current_sec());
 
-       /* If we are changing file size, file content is modified, flag it. */
-       if (attr->ia_valid & ATTR_SIZE) {
-               attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
-               spin_lock(&lli->lli_lock);
-               lli->lli_flags |= LLIF_DATA_MODIFIED;
-               spin_unlock(&lli->lli_lock);
-       }
-
         /* We always do an MDS RPC, even if we're only changing the size;
          * only the MDS knows whether truncate() should fail with -ETXTBUSY */
 
@@ -1485,13 +1491,6 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
                down_write(&lli->lli_trunc_sem);
        }
 
-        memcpy(&op_data->op_attr, attr, sizeof(*attr));
-
-        /* Open epoch for truncate. */
-        if (exp_connect_som(ll_i2mdexp(inode)) &&
-            (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
-                op_data->op_flags = MF_EPOCH_OPEN;
-
        /* truncate on a released file must failed with -ENODATA,
         * so size must not be set on MDS for released file
         * but other attributes must be set
@@ -1505,27 +1504,38 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
                if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED)
                        file_is_released = true;
                ccc_inode_lsm_put(inode, lsm);
-       }
 
-       /* if not in HSM import mode, clear size attr for released file
-        * we clear the attribute send to MDT in op_data, not the original
-        * received from caller in attr which is used later to
-        * decide return code */
-       if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import)
-               op_data->op_attr.ia_valid &= ~ATTR_SIZE;
+               if (!hsm_import && attr->ia_valid & ATTR_SIZE) {
+                       if (file_is_released) {
+                               rc = ll_layout_restore(inode, 0, attr->ia_size);
+                               if (rc < 0)
+                                       GOTO(out, rc);
 
-        rc = ll_md_setattr(dentry, op_data, &mod);
-        if (rc)
-                GOTO(out, rc);
+                               file_is_released = false;
+                               ll_layout_refresh(inode, &gen);
+                       }
 
-       /* truncate failed (only when non HSM import), others succeed */
-       if (file_is_released) {
-               if ((attr->ia_valid & ATTR_SIZE) && !hsm_import)
-                       GOTO(out, rc = -ENODATA);
-               else
-                       GOTO(out, rc = 0);
+                       /* If we are changing file size, file content is
+                        * modified, flag it. */
+                       attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
+                       spin_lock(&lli->lli_lock);
+                       lli->lli_flags |= LLIF_DATA_MODIFIED;
+                       spin_unlock(&lli->lli_lock);
+                       op_data->op_bias |= MDS_DATA_MODIFIED;
+               }
        }
 
+       memcpy(&op_data->op_attr, attr, sizeof(*attr));
+
+       /* Open epoch for truncate. */
+       if (exp_connect_som(ll_i2mdexp(inode)) && !hsm_import &&
+           (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
+               op_data->op_flags = MF_EPOCH_OPEN;
+
+       rc = ll_md_setattr(dentry, op_data, &mod);
+       if (rc)
+               GOTO(out, rc);
+
        /* RPC to MDT is sent, cancel data modification flag */
        if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
                spin_lock(&lli->lli_lock);
@@ -1533,31 +1543,31 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
                spin_unlock(&lli->lli_lock);
        }
 
-        ll_ioepoch_open(lli, op_data->op_ioepoch);
-       if (!S_ISREG(inode->i_mode))
-                GOTO(out, rc = 0);
+       ll_ioepoch_open(lli, op_data->op_ioepoch);
+       if (!S_ISREG(inode->i_mode) || file_is_released)
+               GOTO(out, rc = 0);
 
        if (attr->ia_valid & (ATTR_SIZE |
                              ATTR_ATIME | ATTR_ATIME_SET |
                              ATTR_MTIME | ATTR_MTIME_SET)) {
-                /* For truncate and utimes sending attributes to OSTs, setting
-                 * mtime/atime to the 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 between MDT inode and OST objects */
-                rc = ll_setattr_ost(inode, attr);
+               /* For truncate and utimes sending attributes to OSTs, setting
+                * mtime/atime to the 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 between MDT inode and OST objects */
+               rc = ll_setattr_ost(inode, attr);
        }
-        EXIT;
+       EXIT;
 out:
-        if (op_data) {
-                if (op_data->op_ioepoch) {
-                        rc1 = ll_setattr_done_writing(inode, op_data, mod);
-                        if (!rc)
-                                rc = rc1;
-                }
-                ll_finish_md_op_data(op_data);
-        }
+       if (op_data) {
+               if (op_data->op_ioepoch) {
+                       rc1 = ll_setattr_done_writing(inode, op_data, mod);
+                       if (!rc)
+                               rc = rc1;
+               }
+               ll_finish_md_op_data(op_data);
+       }
        if (!S_ISDIR(inode->i_mode)) {
                up_write(&lli->lli_trunc_sem);
                mutex_lock(&inode->i_mutex);
@@ -1652,6 +1662,7 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
 {
        struct super_block *sb = de->d_sb;
        struct obd_statfs osfs;
+       __u64 fsid = huge_encode_dev(sb->s_dev);
        int rc;
 
         CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
@@ -1683,7 +1694,8 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
         sfs->f_blocks = osfs.os_blocks;
         sfs->f_bfree = osfs.os_bfree;
         sfs->f_bavail = osfs.os_bavail;
-       sfs->f_fsid = ll_s2sbi(sb)->ll_fsid;
+       sfs->f_fsid.val[0] = (__u32)fsid;
+       sfs->f_fsid.val[1] = (__u32)(fsid >> 32);
        return 0;
 }
 
@@ -1790,9 +1802,9 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                 if (fid_is_sane(&lli->lli_fid)) {
                         LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
                                  "Trying to change FID "DFID
-                                 " to the "DFID", inode %lu/%u(%p)\n",
-                                 PFID(&lli->lli_fid), PFID(&body->fid1),
-                                 inode->i_ino, inode->i_generation, inode);
+                                " to the "DFID", inode "DFID"(%p)\n",
+                                PFID(&lli->lli_fid), PFID(&body->fid1),
+                                PFID(ll_inode2fid(inode)), inode);
                 } else
                         lli->lli_fid = body->fid1;
         }
@@ -1817,10 +1829,12 @@ 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 %u still has "
-                                               "size authority! do not trust "
-                                               "the size got from MDS\n",
-                                               inode->i_ino, lli->lli_flags);
+                                       CERROR("%s: inode "DFID" flags %u still"
+                                              " has size authority! do not "
+                                              "trust the size from MDS\n",
+                                              sbi->ll_md_exp->exp_obd->obd_name,
+                                              PFID(ll_inode2fid(inode)),
+                                              lli->lli_flags);
                                 } else {
                                         /* Use old size assignment to avoid
                                          * deadlock bz14138 & bz14326 */
@@ -1836,8 +1850,10 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                          * deadlock bz14138 & bz14326 */
                         i_size_write(inode, body->size);
 
-                        CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
-                               inode->i_ino, (unsigned long long)body->size);
+                       CDEBUG(D_VFSTRACE,
+                              "inode="DFID", updating i_size %llu\n",
+                              PFID(ll_inode2fid(inode)),
+                              (unsigned long long)body->size);
                 }
 
                 if (body->valid & OBD_MD_FLBLOCKS)
@@ -1924,12 +1940,12 @@ void ll_delete_inode(struct inode *inode)
 
         /* Workaround for LU-118 */
         if (inode->i_data.nrpages) {
-                TREE_READ_LOCK_IRQ(&inode->i_data);
-                TREE_READ_UNLOCK_IRQ(&inode->i_data);
+               spin_lock_irq(&inode->i_data.tree_lock);
+               spin_unlock_irq(&inode->i_data.tree_lock);
                 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="DFID"(%p) nrpages=%lu, see "
+                        "http://jira.whamcloud.com/browse/LU-118\n",
+                        PFID(ll_inode2fid(inode)), inode,
                          inode->i_data.nrpages);
         }
         /* Workaround end */
@@ -1965,7 +1981,9 @@ int ll_iocontrol(struct inode *inode, struct file *file,
                 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
                 ll_finish_md_op_data(op_data);
                 if (rc) {
-                        CERROR("failure %d inode %lu\n", rc, inode->i_ino);
+                       CERROR("%s: failure inode "DFID": rc = %d\n",
+                              sbi->ll_md_exp->exp_obd->obd_name,
+                              PFID(ll_inode2fid(inode)), rc);
                         RETURN(-abs(rc));
                 }
 
@@ -2038,17 +2056,17 @@ int ll_iocontrol(struct inode *inode, struct file *file,
 
 int ll_flush_ctx(struct inode *inode)
 {
-        struct ll_sb_info  *sbi = ll_i2sbi(inode);
+       struct ll_sb_info  *sbi = ll_i2sbi(inode);
 
-        CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
+       CDEBUG(D_SEC, "flush context for user %d\n", current_uid());
 
-        obd_set_info_async(NULL, sbi->ll_md_exp,
-                           sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
-                           0, NULL, NULL);
-        obd_set_info_async(NULL, sbi->ll_dt_exp,
-                           sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
-                           0, NULL, NULL);
-        return 0;
+       obd_set_info_async(NULL, sbi->ll_md_exp,
+                          sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
+                          0, NULL, NULL);
+       obd_set_info_async(NULL, sbi->ll_dt_exp,
+                          sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
+                          0, NULL, NULL);
+       return 0;
 }
 
 /* umount -f client means force down, don't save state */
@@ -2091,12 +2109,12 @@ void ll_umount_begin(struct super_block *sb)
                OBD_FREE_PTR(ioc_data);
        }
 
-        /* Really, we'd like to wait until there are no requests outstanding,
-         * and then continue.  For now, we just invalidate the requests,
-         * schedule() and sleep one second if needed, and hope.
-         */
-        cfs_schedule();
-        EXIT;
+       /* Really, we'd like to wait until there are no requests outstanding,
+        * and then continue.  For now, we just invalidate the requests,
+        * schedule() and sleep one second if needed, and hope.
+        */
+       schedule();
+       EXIT;
 }
 
 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
@@ -2317,8 +2335,8 @@ struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
        op_data->op_namelen = namelen;
        op_data->op_mode = mode;
        op_data->op_mod_time = cfs_time_current_sec();
-       op_data->op_fsuid = cfs_curproc_fsuid();
-       op_data->op_fsgid = cfs_curproc_fsgid();
+       op_data->op_fsuid = current_fsuid();
+       op_data->op_fsgid = current_fsgid();
        op_data->op_cap = cfs_curproc_cap_pack();
        op_data->op_bias = 0;
        op_data->op_cli_flags = 0;
@@ -2457,7 +2475,6 @@ static char* ll_d_path(struct dentry *dentry, char *buf, int bufsize)
 {
        char *path = NULL;
 
-#ifdef HAVE_FS_STRUCT_USE_PATH
        struct path p;
 
        p.dentry = dentry;
@@ -2465,10 +2482,6 @@ static char* ll_d_path(struct dentry *dentry, char *buf, int bufsize)
        path_get(&p);
        path = d_path(&p, buf, bufsize);
        path_put(&p);
-#else
-       path = d_path(dentry, current->fs->rootmnt, buf, bufsize);
-#endif
-
        return path;
 }