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use special macro for print time_t, cleanup in includes.
[fs/lustre-release.git] / lustre / liblustre / file.c
index f666cdc..34706f3 100644 (file)
@@ -1,9 +1,9 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- * Lustre Light Super operations
+ * Lustre Light file operations
  *
- *  Copyright (c) 2002, 2003 Cluster File Systems, Inc.
+ *  Copyright (c) 2002-2004 Cluster File Systems, Inc.
  *
  *   This file is part of Lustre, http://www.lustre.org.
  *
 #include <assert.h>
 #include <time.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <sys/queue.h>
+#include <fcntl.h>
 
 #include <sysio.h>
+#ifdef HAVE_XTIO_H
+#include <xtio.h>
+#endif
 #include <fs.h>
 #include <mount.h>
 #include <inode.h>
+#ifdef HAVE_FILE_H
 #include <file.h>
+#endif
 
 #undef LIST_HEAD
 
 #include "llite_lib.h"
 
-void llu_prepare_mdc_op_data(struct mdc_op_data *data,
-                             struct inode *i1,
-                             struct inode *i2,
-                             const char *name,
-                             int namelen,
-                             int mode)
+/* Pack the required supplementary groups into the supplied groups array.
+ * If we don't need to use the groups from the target inode(s) then we
+ * instead pack one or more groups from the user's supplementary group
+ * array in case it might be useful.  Not needed if doing an MDS-side upcall. */
+void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
 {
-        LASSERT(i1);
-        
-        ll_i2uctxt(&data->ctxt, i1, i2);
-        ll_inode2fid(&data->fid1, i1);
+        LASSERT(i1 != NULL);
+        LASSERT(suppgids != NULL);
+
+        if (in_group_p(i1->i_stbuf.st_gid))
+                suppgids[0] = i1->i_stbuf.st_gid;
+        else
+                suppgids[0] = -1;
 
         if (i2) {
-                ll_inode2fid(&data->fid2, i2);
+                if (in_group_p(i2->i_stbuf.st_gid))
+                        suppgids[1] = i2->i_stbuf.st_gid;
+                else
+                        suppgids[1] = -1;
+        } else {
+                suppgids[1] = -1;
+        }
+}
+
+void llu_prep_md_op_data(struct md_op_data *op_data, struct inode *i1,
+                         struct inode *i2, const char *name, int namelen,
+                         int mode, __u32 opc)
+{
+        LASSERT(i1 != NULL || i2 != NULL);
+        LASSERT(op_data);
+
+        if (i1) {
+                ll_i2gids(op_data->op_suppgids, i1, i2);
+                op_data->op_fid1 = *ll_inode2fid(i1);
+        }else {
+                ll_i2gids(op_data->op_suppgids, i2, i1);
+                op_data->op_fid1 = *ll_inode2fid(i2);
         }
 
-        data->name = name;
-        data->namelen = namelen;
-        data->create_mode = mode;
-        data->mod_time = CURRENT_TIME;
+        if (i2)
+                op_data->op_fid2 = *ll_inode2fid(i2);
+        else
+                fid_zero(&op_data->op_fid2);
+
+        op_data->op_opc = opc;
+        op_data->op_name = name;
+        op_data->op_mode = mode;
+        op_data->op_namelen = namelen;
+        op_data->op_mod_time = CURRENT_TIME;
+        op_data->op_data = NULL;
+}
+
+void llu_finish_md_op_data(struct md_op_data *op_data)
+{
+        OBD_FREE_PTR(op_data);
 }
 
 void obdo_refresh_inode(struct inode *dst,
                         struct obdo *src,
                         obd_flag valid)
 {
-        struct llu_inode_info *lli = llu_i2info(dst);
+        struct intnl_stat *st = llu_i2stat(dst);
         valid &= src->o_valid;
 
         if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
-                CDEBUG(D_INODE, "valid %x, cur time %lu/%lu, new %lu/%lu\n",
-                       src->o_valid, LTIME_S(lli->lli_st_mtime), 
-                       LTIME_S(lli->lli_st_ctime),
+                CDEBUG(D_INODE,"valid "LPX64", cur time "CFS_TIME_T"/"CFS_TIME_T
+                      ", new %lu/%lu\n",
+                       src->o_valid, LTIME_S(st->st_mtime),
+                       LTIME_S(st->st_ctime),
                        (long)src->o_mtime, (long)src->o_ctime);
 
-        if (valid & OBD_MD_FLATIME && src->o_atime > LTIME_S(lli->lli_st_atime))
-                LTIME_S(lli->lli_st_atime) = src->o_atime;
-        if (valid & OBD_MD_FLMTIME && src->o_mtime > LTIME_S(lli->lli_st_mtime))
-                LTIME_S(lli->lli_st_mtime) = src->o_mtime;
-        if (valid & OBD_MD_FLCTIME && src->o_ctime > LTIME_S(lli->lli_st_ctime))
-                LTIME_S(lli->lli_st_ctime) = src->o_ctime;
-        if (valid & OBD_MD_FLSIZE && src->o_size > lli->lli_st_size)
-                lli->lli_st_size = src->o_size;
+        if (valid & OBD_MD_FLATIME && src->o_atime > LTIME_S(st->st_atime))
+                LTIME_S(st->st_atime) = src->o_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, leave mtime from mds 
+           for the same ctimes. */
+        if (valid & OBD_MD_FLCTIME && src->o_ctime > LTIME_S(st->st_ctime)) {
+                LTIME_S(st->st_ctime) = src->o_ctime;
+                if (valid & OBD_MD_FLMTIME)
+                        LTIME_S(st->st_mtime) = src->o_mtime;
+        }
+        if (valid & OBD_MD_FLSIZE && src->o_size > st->st_size)
+                st->st_size = src->o_size;
         /* optimum IO size */
         if (valid & OBD_MD_FLBLKSZ)
-                lli->lli_st_blksize = src->o_blksize;
+                st->st_blksize = src->o_blksize;
         /* allocation of space */
-        if (valid & OBD_MD_FLBLOCKS && src->o_blocks > lli->lli_st_blocks)
-                lli->lli_st_blocks = src->o_blocks;
+        if (valid & OBD_MD_FLBLOCKS && src->o_blocks > st->st_blocks)
+                st->st_blocks = src->o_blocks;
 }
 
-static int llu_local_open(struct llu_inode_info *lli, struct lookup_intent *it)
+int llu_local_open(struct llu_inode_info *lli, struct lookup_intent *it)
 {
         struct ptlrpc_request *req = it->d.lustre.it_data;
         struct ll_file_data *fd;
-        struct mds_body *body;
+        struct mdt_body *body;
         ENTRY;
 
-        body = lustre_msg_buf (req->rq_repmsg, 1, sizeof (*body));
-        LASSERT (body != NULL);                 /* reply already checked out */
-        LASSERT_REPSWABBED (req, 1);            /* and swabbed down */
+        body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
+        LASSERT(body != NULL);
 
         /* already opened? */
         if (lli->lli_open_count++)
                 RETURN(0);
-                
+
         LASSERT(!lli->lli_file_data);
 
         OBD_ALLOC(fd, sizeof(*fd));
         /* We can't handle this well without reorganizing ll_file_open and
-         * ll_mdc_close, so don't even try right now. */
+         * ll_md_close, so don't even try right now. */
         LASSERT(fd != NULL);
 
         memcpy(&fd->fd_mds_och.och_fh, &body->handle, sizeof(body->handle));
         fd->fd_mds_och.och_magic = OBD_CLIENT_HANDLE_MAGIC;
+        fd->fd_mds_och.och_fid   = lli->lli_fid;
         lli->lli_file_data = fd;
 
-        mdc_set_open_replay_data(&fd->fd_mds_och, it->d.lustre.it_data);
+        md_set_open_replay_data(lli->lli_sbi->ll_md_exp,
+                                &fd->fd_mds_och, it->d.lustre.it_data);
 
         RETURN(0);
 }
@@ -126,6 +176,7 @@ int llu_iop_open(struct pnode *pnode, int flags, mode_t mode)
 {
         struct inode *inode = pnode->p_base->pb_ino;
         struct llu_inode_info *lli = llu_i2info(inode);
+        struct intnl_stat *st = llu_i2stat(inode);
         struct ll_file_data *fd;
         struct ptlrpc_request *request;
         struct lookup_intent *it;
@@ -133,11 +184,13 @@ int llu_iop_open(struct pnode *pnode, int flags, mode_t mode)
         int rc = 0;
         ENTRY;
 
+        liblustre_wait_event(0);
+
         /* don't do anything for '/' */
         if (llu_is_root_inode(inode))
                 RETURN(0);
 
-        CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu\n", lli->lli_st_ino);
+        CDEBUG(D_VFSTRACE, "VFS Op:inode=%llu\n", (long long)st->st_ino);
         LL_GET_INTENT(inode, it);
 
         if (!it->d.lustre.it_disposition) {
@@ -152,9 +205,9 @@ int llu_iop_open(struct pnode *pnode, int flags, mode_t mode)
         if (rc)
                 LBUG();
 
-        if (!S_ISREG(lli->lli_st_mode))
+        if (!S_ISREG(st->st_mode))
                 GOTO(out_release, rc = 0);
-                
+
         fd = lli->lli_file_data;
 
         lsm = lli->lli_smd;
@@ -166,7 +219,7 @@ int llu_iop_open(struct pnode *pnode, int flags, mode_t mode)
         }
         fd->fd_flags &= ~O_LOV_DELAY_CREATE;
 
-        lli->lli_open_flags = flags;
+        lli->lli_open_flags = flags & ~(O_CREAT | O_EXCL | O_TRUNC);
 
  out_release:
         request = it->d.lustre.it_data;
@@ -175,12 +228,26 @@ int llu_iop_open(struct pnode *pnode, int flags, mode_t mode)
         it->it_op_release(it);
         OBD_FREE(it, sizeof(*it));
 
+        /* libsysio hasn't done anything for O_TRUNC. here we
+         * simply simulate it as open(...); truncate(...); */
+        if (rc == 0 && (flags & O_TRUNC) && S_ISREG(st->st_mode)) {
+                struct iattr attr;
+
+                memset(&attr, 0, sizeof(attr));
+                attr.ia_size = 0;
+                attr.ia_valid |= ATTR_SIZE | ATTR_RAW;
+                rc = llu_setattr_raw(inode, &attr);
+                if (rc)
+                        CERROR("error %d truncate in open()\n", rc);
+        }
+
+        liblustre_wait_event(0);
         RETURN(rc);
 }
 
-int llu_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
+int llu_objects_destroy(struct ptlrpc_request *req, struct inode *dir)
 {
-        struct mds_body *body;
+        struct mdt_body *body;
         struct lov_mds_md *eadata;
         struct lov_stripe_md *lsm = NULL;
         struct obd_trans_info oti = { 0 };
@@ -188,8 +255,7 @@ int llu_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
         int rc;
         ENTRY;
 
-        /* req is swabbed so this is safe */
-        body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
+        body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
 
         if (!(body->valid & OBD_MD_FLEASIZE))
                 RETURN(0);
@@ -203,42 +269,42 @@ int llu_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
          * to this file. Use this EA to unlink the objects on the OST.
          * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
          * check it is complete and sensible. */
-        eadata = lustre_swab_repbuf(request, 1, body->eadatasize, NULL);
+        eadata = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD,
+                                              body->eadatasize);
+
         LASSERT(eadata != NULL);
-        if (eadata == NULL) {
-                CERROR("Can't unpack MDS EA data\n");
-                GOTO(out, rc = -EPROTO);
-        }
 
-        rc = obd_unpackmd(llu_i2obdexp(dir), &lsm, eadata, body->eadatasize);
+        rc = obd_unpackmd(llu_i2obdexp(dir), &lsm, eadata,body->eadatasize);
         if (rc < 0) {
                 CERROR("obd_unpackmd: %d\n", rc);
                 GOTO(out, rc);
         }
         LASSERT(rc >= sizeof(*lsm));
 
-        oa = obdo_alloc();
+        OBDO_ALLOC(oa);
         if (oa == NULL)
                 GOTO(out_free_memmd, rc = -ENOMEM);
 
         oa->o_id = lsm->lsm_object_id;
+        oa->o_gr = lsm->lsm_object_gr;
         oa->o_mode = body->mode & S_IFMT;
-        oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE;
+        oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
 
         if (body->valid & OBD_MD_FLCOOKIE) {
                 oa->o_valid |= OBD_MD_FLCOOKIE;
                 oti.oti_logcookies =
-                        lustre_msg_buf(request->rq_repmsg, 2,
-                                       sizeof(struct llog_cookie) *
-                                       lsm->lsm_stripe_count);
+                        req_capsule_server_sized_get(&req->rq_pill,
+                                                   &RMF_LOGCOOKIES,
+                                                   sizeof(struct llog_cookie) *
+                                                   lsm->lsm_stripe_count);
                 if (oti.oti_logcookies == NULL) {
                         oa->o_valid &= ~OBD_MD_FLCOOKIE;
                         body->valid &= ~OBD_MD_FLCOOKIE;
                 }
         }
 
-        rc = obd_destroy(llu_i2obdexp(dir), oa, lsm, &oti);
-        obdo_free(oa);
+        rc = obd_destroy(llu_i2obdexp(dir), oa, lsm, &oti, NULL);
+        OBDO_FREE(oa);
         if (rc)
                 CERROR("obd destroy objid 0x"LPX64" error %d\n",
                        lsm->lsm_object_id, rc);
@@ -248,53 +314,121 @@ int llu_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
         return rc;
 }
 
-int llu_mdc_close(struct obd_export *mdc_exp, struct inode *inode)
+int llu_sizeonmds_update(struct inode *inode, struct md_open_data *mod,
+                         struct lustre_handle *fh, __u64 ioepoch)
+{
+        struct llu_inode_info *lli = llu_i2info(inode);
+        struct llu_sb_info *sbi = llu_i2sbi(inode);
+        struct md_op_data op_data = {{ 0 }};
+        struct obdo oa;
+        int rc;
+        ENTRY;
+        
+        LASSERT(!(lli->lli_flags & LLIF_MDS_SIZE_LOCK));
+        LASSERT(sbi->ll_lco.lco_flags & OBD_CONNECT_SOM);
+        
+        rc = llu_inode_getattr(inode, &oa);
+        if (rc == -ENOENT) {
+                oa.o_valid = 0;
+                CDEBUG(D_INODE, "objid "LPX64" is already destroyed\n",
+                       lli->lli_smd->lsm_object_id);
+        } else if (rc) {
+                CERROR("inode_getattr failed (%d): unable to send a "
+                       "Size-on-MDS attribute update for inode %llu/%lu\n",
+                       rc, (long long)llu_i2stat(inode)->st_ino,
+                       lli->lli_st_generation);
+                RETURN(rc);
+        }
+        
+        md_from_obdo(&op_data, &oa, oa.o_valid);
+        memcpy(&op_data.op_handle, fh, sizeof(*fh));
+        op_data.op_ioepoch = ioepoch;
+        op_data.op_flags |= MF_SOM_CHANGE;
+
+        rc = llu_md_setattr(inode, &op_data, &mod);
+        RETURN(rc);
+}
+
+int llu_md_close(struct obd_export *md_exp, struct inode *inode)
 {
         struct llu_inode_info *lli = llu_i2info(inode);
         struct ll_file_data *fd = lli->lli_file_data;
         struct ptlrpc_request *req = NULL;
         struct obd_client_handle *och = &fd->fd_mds_och;
-        struct obdo obdo;
-        int rc, valid;
+        struct intnl_stat *st = llu_i2stat(inode);
+        struct md_op_data op_data = { { 0 } };
+        int seq_end = 0, rc;
         ENTRY;
 
         /* clear group lock, if present */
-        if (fd->fd_flags & LL_FILE_CW_LOCKED) {
+        if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
                 struct lov_stripe_md *lsm = llu_i2info(inode)->lli_smd;
-                fd->fd_flags &= ~(LL_FILE_CW_LOCKED|LL_FILE_IGNORE_LOCK);
-                rc = llu_extent_unlock(fd, inode, lsm, LCK_CW, &fd->fd_cwlockh);
+                fd->fd_flags &= ~(LL_FILE_GROUP_LOCKED|LL_FILE_IGNORE_LOCK);
+                rc = llu_extent_unlock(fd, inode, lsm, LCK_GROUP,
+                                       &fd->fd_cwlockh);
         }
 
-        valid = OBD_MD_FLID;
-        if (test_bit(LLI_F_HAVE_OST_SIZE_LOCK, &lli->lli_flags))
-                valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
-
-        memset(&obdo, 0, sizeof(obdo));
-        obdo.o_id = lli->lli_st_ino;
-        obdo.o_mode = lli->lli_st_mode;
-        obdo.o_size = lli->lli_st_size;
-        obdo.o_blocks = lli->lli_st_blocks;
-        if (0 /* ll_is_inode_dirty(inode) */) {
-                obdo.o_flags = MDS_BFLAG_UNCOMMITTED_WRITES;
-                valid |= OBD_MD_FLFLAGS;
+        op_data.op_attr.ia_valid = ATTR_MODE | ATTR_ATIME_SET |
+                                ATTR_MTIME_SET | ATTR_CTIME_SET;
+        
+        if (fd->fd_flags & FMODE_WRITE) {
+                struct llu_sb_info *sbi = llu_i2sbi(inode);
+                if (!(sbi->ll_lco.lco_flags & OBD_CONNECT_SOM) ||
+                    !S_ISREG(llu_i2stat(inode)->st_mode)) {
+                        op_data.op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
+                } else {
+                        /* Inode cannot be dirty. Close the epoch. */
+                        op_data.op_flags |= MF_EPOCH_CLOSE;
+                        /* XXX: Send CHANGE flag only if Size-on-MDS inode attributes
+                         * are really changed.  */
+                        op_data.op_flags |= MF_SOM_CHANGE;
+
+                        /* Pack Size-on-MDS attributes if we are in IO epoch and 
+                         * attributes are valid. */
+                        LASSERT(!(lli->lli_flags & LLIF_MDS_SIZE_LOCK));
+                        if (!llu_local_size(inode))
+                                op_data.op_attr.ia_valid |= 
+                                        OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
+                }
         }
-        obdo.o_valid = valid;
-        rc = mdc_close(mdc_exp, &obdo, och, &req);
-        if (rc == EAGAIN) {
+        op_data.op_fid1 = lli->lli_fid;
+        op_data.op_attr.ia_atime = st->st_atime;
+        op_data.op_attr.ia_mtime = st->st_mtime;
+        op_data.op_attr.ia_ctime = st->st_ctime;
+        op_data.op_attr.ia_size = st->st_size;
+        op_data.op_attr_blocks = st->st_blocks;
+        op_data.op_attr.ia_attr_flags = lli->lli_st_flags;
+        op_data.op_ioepoch = lli->lli_ioepoch;
+        memcpy(&op_data.op_handle, &och->och_fh, sizeof(op_data.op_handle));
+
+        rc = md_close(md_exp, &op_data, och->och_mod, &req);
+        if (rc != -EAGAIN)
+                seq_end = 1;
+
+        if (rc == -EAGAIN) {
                 /* We are the last writer, so the MDS has instructed us to get
                  * the file size and any write cookies, then close again. */
-                //ll_queue_done_writing(inode);
-                rc = 0;
+                LASSERT(fd->fd_flags & FMODE_WRITE);
+                rc = llu_sizeonmds_update(inode, och->och_mod, &och->och_fh,
+                                          op_data.op_ioepoch);
+                if (rc) {
+                        CERROR("inode %llu mdc Size-on-MDS update failed: "
+                               "rc = %d\n", (long long)st->st_ino, rc);
+                        rc = 0;
+                }
         } else if (rc) {
-                CERROR("inode %lu close failed: rc = %d\n", lli->lli_st_ino, rc);
+                CERROR("inode %llu close failed: rc %d\n",
+                       (long long)st->st_ino, rc);
         } else {
                 rc = llu_objects_destroy(req, inode);
                 if (rc)
-                        CERROR("inode %lu ll_objects destroy: rc = %d\n",
-                                lli->lli_st_ino, rc);
+                        CERROR("inode %llu ll_objects destroy: rc = %d\n",
+                               (long long)st->st_ino, rc);
         }
 
-        mdc_clear_open_replay_data(och);
+        if (seq_end)
+                ptlrpc_close_replay_seq(req);
+        md_clear_open_replay_data(md_exp, och);
         ptlrpc_req_finished(req);
         och->och_fh.cookie = DEAD_HANDLE_MAGIC;
         lli->lli_file_data = NULL;
@@ -311,8 +445,8 @@ int llu_file_release(struct inode *inode)
         int rc = 0, rc2;
 
         ENTRY;
-        CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%lu\n", lli->lli_st_ino,
-               lli->lli_st_generation);
+        CDEBUG(D_VFSTRACE, "VFS Op:inode=%llu/%lu\n",
+               (long long)llu_i2stat(inode)->st_ino, lli->lli_st_generation);
 
         if (llu_is_root_inode(inode))
                 RETURN(0);
@@ -325,95 +459,88 @@ int llu_file_release(struct inode *inode)
         if (!fd) /* no process opened the file after an mcreate */
                 RETURN(0);
 
-        rc2 = llu_mdc_close(sbi->ll_mdc_exp, inode);
+        rc2 = llu_md_close(sbi->ll_md_exp, inode);
         if (rc2 && !rc)
                 rc = rc2;
 
         RETURN(rc);
 }
 
+/*
+ * libsysio require us return 0
+ */
 int llu_iop_close(struct inode *inode)
 {
         int rc;
 
+        liblustre_wait_event(0);
+
         rc = llu_file_release(inode);
+        if (rc) {
+                CERROR("file close error %d\n", rc);
+        }
         /* if open count == 0 && stale_flag is set, should we
          * remove the inode immediately? */
-        return rc;
+        liblustre_wait_idle();
+        return 0;
 }
 
-int llu_iop_ipreadv(struct inode *ino,
-                    struct ioctx *ioctx)
+_SYSIO_OFF_T llu_iop_pos(struct inode *ino, _SYSIO_OFF_T off)
 {
         ENTRY;
 
-        if (!ioctx->ioctx_iovlen)
-                RETURN(0);
-        if (ioctx->ioctx_iovlen < 0)
-                RETURN(-EINVAL);
+        liblustre_wait_event(0);
 
-        ioctx->ioctx_private = llu_file_read(ino,
-                                        ioctx->ioctx_iovec,
-                                        ioctx->ioctx_iovlen,
-                                        ioctx->ioctx_offset);
-        if (IS_ERR(ioctx->ioctx_private))
-                return (PTR_ERR(ioctx->ioctx_private));
-
-        RETURN(0);
-}
-
-int llu_iop_ipwritev(struct inode *ino,
-                     struct ioctx *ioctx)
-{
-        ENTRY;
-
-        if (!ioctx->ioctx_iovlen)
-                RETURN(0);
-        if (ioctx->ioctx_iovlen < 0)
+        if (off < 0 || off > ll_file_maxbytes(ino))
                 RETURN(-EINVAL);
 
-        ioctx->ioctx_private = llu_file_write(ino,
-                                         ioctx->ioctx_iovec,
-                                         ioctx->ioctx_iovlen,
-                                         ioctx->ioctx_offset);
-        if (IS_ERR(ioctx->ioctx_private))
-                return (PTR_ERR(ioctx->ioctx_private));
-
-        RETURN(0);
+        RETURN(off);
 }
 
-/* this isn't where truncate starts.   roughly:
- * sys_truncate->ll_setattr_raw->vmtruncate->ll_truncate
+/* this isn't where truncate starts.  roughly:
+ * llu_iop_{open,setattr}->llu_setattr_raw->llu_vmtruncate->llu_truncate
  * we grab the lock back in setattr_raw to avoid races. */
-static void llu_truncate(struct inode *inode)
+static void llu_truncate(struct inode *inode, obd_flag flags)
 {
         struct llu_inode_info *lli = llu_i2info(inode);
-        struct lov_stripe_md *lsm = lli->lli_smd;
-        struct obdo oa = {0};
-        int err;
+        struct intnl_stat *st = llu_i2stat(inode);
+        struct obd_info oinfo = { { { 0 } } };
+        struct obdo oa = { 0 };
+        int rc;
         ENTRY;
-        CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%lu\n", lli->lli_st_ino,
-               lli->lli_st_generation);
+        CDEBUG(D_VFSTRACE, "VFS Op:inode=%llu/%lu(%p) to %llu\n",
+               (long long)st->st_ino, lli->lli_st_generation, inode,
+               (long long)st->st_size);
 
-        if (!lsm) {
-                CERROR("truncate on inode %lu with no objects\n", lli->lli_st_ino);
+        if (!lli->lli_smd) {
+                CDEBUG(D_INODE, "truncate on inode %llu with no objects\n",
+                       (long long)st->st_ino);
                 EXIT;
                 return;
         }
 
-        oa.o_id = lsm->lsm_object_id;
-        oa.o_valid = OBD_MD_FLID;
-        obdo_from_inode(&oa, inode, OBD_MD_FLTYPE|OBD_MD_FLMODE|OBD_MD_FLATIME|
-                                    OBD_MD_FLMTIME | OBD_MD_FLCTIME);
+        oinfo.oi_md = lli->lli_smd;
+        oinfo.oi_policy.l_extent.start = st->st_size;
+        oinfo.oi_policy.l_extent.end = OBD_OBJECT_EOF;
+        oinfo.oi_oa = &oa;
+        oa.o_id = lli->lli_smd->lsm_object_id;
+        oa.o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS;
+        oa.o_flags = flags; /* We don't actually want to copy inode flags */
+        obdo_from_inode(&oa, inode,
+                        OBD_MD_FLTYPE | OBD_MD_FLMODE | OBD_MD_FLATIME |
+                        OBD_MD_FLMTIME | OBD_MD_FLCTIME);
+
+        obd_adjust_kms(llu_i2obdexp(inode), lli->lli_smd, st->st_size, 1);
 
         CDEBUG(D_INFO, "calling punch for "LPX64" (all bytes after %Lu)\n",
-               oa.o_id, lli->lli_st_size);
+               oa.o_id, (long long)st->st_size);
 
         /* truncate == punch from new size to absolute end of file */
-        err = obd_punch(llu_i2obdexp(inode), &oa, lsm, lli->lli_st_size,
-                        OBD_OBJECT_EOF, NULL);
-        if (err)
-                CERROR("obd_truncate fails (%d) ino %lu\n", err, lli->lli_st_ino);
+        rc = obd_punch_rqset(llu_i2obdexp(inode), &oinfo, NULL);
+        if (rc)
+                CERROR("obd_truncate fails (%d) ino %llu\n",
+                       rc, (long long)st->st_ino);
         else
                 obdo_to_inode(inode, &oa, OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
                                           OBD_MD_FLATIME | OBD_MD_FLMTIME |
@@ -421,15 +548,19 @@ static void llu_truncate(struct inode *inode)
 
         EXIT;
         return;
-}
+} /* llu_truncate */
 
-int llu_vmtruncate(struct inode * inode, loff_t offset)
+int llu_vmtruncate(struct inode * inode, loff_t offset, obd_flag flags)
 {
-        struct llu_inode_info *lli = llu_i2info(inode);
+        llu_i2stat(inode)->st_size = offset;
 
-        lli->lli_st_size = offset;
+        /*
+         * llu_truncate() is only called from this
+         * point. llu_vmtruncate/llu_truncate split exists to mimic the
+         * structure of Linux VFS truncate code path.
+         */
 
-        llu_truncate(inode);
+        llu_truncate(inode, flags);
 
         return 0;
 }