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[fs/lustre-release.git] / lustre / obdfilter / filter_log.c
index eb3df7a..b5cd83e 100644 (file)
@@ -8,39 +8,44 @@
  *   Author: Andreas Dilger <adilger@clusterfs.com>
  *   Author: Phil Schwan <phil@clusterfs.com>
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ *   This file is part of the Lustre file system, http://www.lustre.org
+ *   Lustre is a trademark of Cluster File Systems, Inc.
  *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
+ *   You may have signed or agreed to another license before downloading
+ *   this software.  If so, you are bound by the terms and conditions
+ *   of that agreement, and the following does not apply to you.  See the
+ *   LICENSE file included with this distribution for more information.
  *
- *   Lustre is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
+ *   If you did not agree to a different license, then this copy of Lustre
+ *   is open source software; you can redistribute it and/or modify it
+ *   under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *   In either case, Lustre is distributed in the hope that it will be
+ *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   license text for more details.
  */
 
 #define DEBUG_SUBSYSTEM S_FILTER
 
+#ifndef AUTOCONF_INCLUDED
 #include <linux/config.h>
+#endif
 #include <linux/module.h>
 #include <linux/version.h>
 
-#include <portals/list.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_fsfilt.h>
-#include <linux/lustre_commit_confd.h>
+#include <libcfs/list.h>
+#include <obd_class.h>
+#include <lustre_fsfilt.h>
+#include <lustre_commit_confd.h>
 
 #include "filter_internal.h"
 
-int filter_log_sz_change(struct llog_handle *cathandle, 
+int filter_log_sz_change(struct llog_handle *cathandle,
                          struct ll_fid *mds_fid,
-                         __u32 io_epoch,
-                         struct llog_cookie *logcookie, 
+                         __u32 ioepoch,
+                         struct llog_cookie *logcookie,
                          struct inode *inode)
 {
         struct llog_size_change_rec *lsc;
@@ -48,29 +53,29 @@ int filter_log_sz_change(struct llog_handle *cathandle,
         struct ost_filterdata *ofd;
         ENTRY;
 
-        down(&inode->i_sem);
+        LOCK_INODE_MUTEX(inode);
         ofd = inode->i_filterdata;
-        
-        if (ofd && ofd->ofd_epoch >= io_epoch) {
-                if (ofd->ofd_epoch > io_epoch)
-                        CERROR("client sent old epoch %d for obj ino %ld\n", 
-                               io_epoch, inode->i_ino);
-                up(&inode->i_sem);
+
+        if (ofd && ofd->ofd_epoch >= ioepoch) {
+                if (ofd->ofd_epoch > ioepoch)
+                        CERROR("client sent old epoch %d for obj ino %ld\n",
+                               ioepoch, inode->i_ino);
+                UNLOCK_INODE_MUTEX(inode);
                 RETURN(0);
         }
 
-        if (ofd && ofd->ofd_epoch < io_epoch) {
-                ofd->ofd_epoch = io_epoch;
+        if (ofd && ofd->ofd_epoch < ioepoch) {
+                ofd->ofd_epoch = ioepoch;
         } else if (!ofd) {
                 OBD_ALLOC(ofd, sizeof(*ofd));
                 if (!ofd)
                         GOTO(out, rc = -ENOMEM);
                 igrab(inode);
                 inode->i_filterdata = ofd;
-                ofd->ofd_epoch = io_epoch;
+                ofd->ofd_epoch = ioepoch;
         }
         /* the decision to write a record is now made, unlock */
-        up(&inode->i_sem);
+        UNLOCK_INODE_MUTEX(inode);
 
         OBD_ALLOC(lsc, sizeof(*lsc));
         if (lsc == NULL)
@@ -78,7 +83,7 @@ int filter_log_sz_change(struct llog_handle *cathandle,
         lsc->lsc_hdr.lrh_len = lsc->lsc_tail.lrt_len = sizeof(*lsc);
         lsc->lsc_hdr.lrh_type =  OST_SZ_REC;
         lsc->lsc_fid = *mds_fid;
-        lsc->lsc_io_epoch = io_epoch;
+        lsc->lsc_ioepoch = ioepoch;
 
         rc = llog_cat_add_rec(cathandle, &lsc->lsc_hdr, logcookie, NULL);
         OBD_FREE(lsc, sizeof(*lsc));
@@ -94,77 +99,157 @@ int filter_log_sz_change(struct llog_handle *cathandle,
 
 /* When this (destroy) operation is committed, return the cancel cookie */
 void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno,
-                                     void *cb_data, int error)
+                              void *cb_data, int error)
 {
         struct llog_cookie *cookie = cb_data;
-        llog_cancel(llog_get_context(obd, cookie->lgc_subsys + 1),
-                             NULL, 1, cookie, 0);
-                             //NULL, 1, cookie, OBD_LLOG_FL_SENDNOW);
-        OBD_FREE(cb_data, sizeof(struct llog_cookie));
+        struct obd_llogs *llogs;
+        struct llog_ctxt *ctxt;
+        
+        /* we have to find context for right group */
+        if (error != 0) {
+                CDEBUG(D_INODE, "not cancelling llog cookie on error %d\n",
+                       error);
+                goto out;
+        }
+        llogs = filter_grab_llog_for_group(obd, cookie->lgc_lgl.lgl_ogr, NULL);
+
+        if (llogs) {
+                ctxt = llog_get_context_from_llogs(llogs, cookie->lgc_subsys + 1);
+                if (ctxt) {
+                        llog_cancel(ctxt, NULL, 1, cookie, 0);
+                } else
+                        CERROR("no valid context for group "LPU64"\n",
+                                cookie->lgc_lgl.lgl_ogr);
+        } else {
+                CDEBUG(D_HA, "unknown group "LPU64"!\n", cookie->lgc_lgl.lgl_ogr);
+        }
+out:
+        OBD_FREE(cookie, sizeof(struct llog_cookie));
 }
 
 /* Callback for processing the unlink log record received from MDS by 
- * llog_client_api.
- */
-int filter_recov_log_unlink_cb(struct llog_handle *llh, 
-                               struct llog_rec_hdr *rec, void *data)
+ * llog_client_api. */
+static int filter_recov_log_unlink_cb(struct llog_ctxt *ctxt,
+                                      struct llog_rec_hdr *rec,
+                                      struct llog_cookie *cookie)
 {
-        struct llog_ctxt *ctxt = llh->lgh_ctxt;
         struct obd_device *obd = ctxt->loc_obd;
         struct obd_export *exp = obd->obd_self_export;
-        struct llog_cookie cookie;
-        struct llog_gen_rec *lgr;
         struct llog_unlink_rec *lur;
         struct obdo *oa;
         obd_id oid;
         int rc = 0;
         ENTRY;
-                                                                                                                             
-        if (!(le32_to_cpu(llh->lgh_hdr->llh_flags) & LLOG_F_IS_PLAIN)) {
-                CERROR("log is not plain\n");
-                RETURN(-EINVAL);
-        }
-        if (rec->lrh_type != MDS_UNLINK_REC &&
-            rec->lrh_type != LLOG_GEN_REC) {
-                CERROR("log record type error\n");
-                RETURN(-EINVAL);
-        }
-        cookie.lgc_lgl = llh->lgh_id;
-        cookie.lgc_subsys = LLOG_UNLINK_ORIG_CTXT;
-        cookie.lgc_index = le32_to_cpu(rec->lrh_index);
-
-        if (rec->lrh_type == LLOG_GEN_REC) {
-                lgr = (struct llog_gen_rec *)rec;
-                if (llog_gen_lt(lgr->lgr_gen, ctxt->loc_gen))
-                        rc = 0;
-                else
-                        rc = LLOG_PROC_BREAK;
-                CWARN("fetch generation log, send cookie\n");
-                llog_cancel(ctxt, NULL, 1, &cookie, 0);
-                RETURN(rc);
-        }
 
         lur = (struct llog_unlink_rec *)rec;
-        oa = obdo_alloc();
+        OBDO_ALLOC(oa);
         if (oa == NULL) 
                 RETURN(-ENOMEM);
         oa->o_valid |= OBD_MD_FLCOOKIE;
         oa->o_id = lur->lur_oid;
         oa->o_gr = lur->lur_ogen;
-        memcpy(obdo_logcookie(oa), &cookie, sizeof(cookie));
+        oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
+        memcpy(obdo_logcookie(oa), cookie, sizeof(*cookie));
         oid = oa->o_id;
 
-        rc = obd_destroy(exp, oa, NULL, NULL);
-        obdo_free(oa);
+        rc = filter_destroy(exp, oa, NULL, NULL, NULL);
+        OBDO_FREE(oa);
         if (rc == -ENOENT) {
-                CDEBUG(D_HA, "object already removed, send cookie\n");
-                llog_cancel(ctxt, NULL, 1, &cookie, 0);
+                CDEBUG(D_RPCTRACE, "object already removed, send cookie\n");
+                llog_cancel(ctxt, NULL, 1, cookie, 0);
+                RETURN(0);
+        }
+
+        if (rc == 0)
+                CDEBUG(D_RPCTRACE, "object "LPU64" is destroyed\n", oid);
+
+        RETURN(rc);
+}
+
+/* Callback for processing the setattr log record received from MDS by
+ * llog_client_api. */
+static int filter_recov_log_setattr_cb(struct llog_ctxt *ctxt,
+                                       struct llog_rec_hdr *rec,
+                                       struct llog_cookie *cookie)
+{
+        struct obd_device *obd = ctxt->loc_obd;
+        struct obd_export *exp = obd->obd_self_export;
+        struct llog_setattr_rec *lsr;
+        struct obd_info oinfo = { { { 0 } } };
+        obd_id oid;
+        int rc = 0;
+        ENTRY;
+
+        lsr = (struct llog_setattr_rec *)rec;
+        OBDO_ALLOC(oinfo.oi_oa);
+        if (oinfo.oi_oa == NULL)
+                RETURN(-ENOMEM);
+
+        oinfo.oi_oa->o_valid |= (OBD_MD_FLID | OBD_MD_FLUID | OBD_MD_FLGID |
+                                 OBD_MD_FLCOOKIE);
+        oinfo.oi_oa->o_id = lsr->lsr_oid;
+        oinfo.oi_oa->o_gr = lsr->lsr_ogen;
+        oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
+        oinfo.oi_oa->o_uid = lsr->lsr_uid;
+        oinfo.oi_oa->o_gid = lsr->lsr_gid;
+        memcpy(obdo_logcookie(oinfo.oi_oa), cookie, sizeof(*cookie));
+        oid = oinfo.oi_oa->o_id;
+
+        rc = filter_setattr(exp, &oinfo, NULL);
+        OBDO_FREE(oinfo.oi_oa);
+
+        if (rc == -ENOENT) {
+                CDEBUG(D_RPCTRACE, "object already removed, send cookie\n");
+                llog_cancel(ctxt, NULL, 1, cookie, 0);
                 RETURN(0);
         }
 
         if (rc == 0)
-                CDEBUG(D_HA, "object: "LPU64" in record is destroyed\n", oid);
+                CDEBUG(D_RPCTRACE, "object "LPU64" is chown/chgrp\n", oid);
+
+        RETURN(rc);
+}
+
+int filter_recov_log_mds_ost_cb(struct llog_handle *llh,
+                               struct llog_rec_hdr *rec, void *data)
+{
+        struct llog_ctxt *ctxt = llh->lgh_ctxt;
+        struct llog_cookie cookie;
+        int rc = 0;
+        ENTRY;
+
+        if (!(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)) {
+                CERROR("log is not plain\n");
+                RETURN(-EINVAL);
+        }
+
+        cookie.lgc_lgl = llh->lgh_id;
+        cookie.lgc_subsys = LLOG_MDS_OST_ORIG_CTXT;
+        cookie.lgc_index = rec->lrh_index;
+
+        switch (rec->lrh_type) {
+        case MDS_UNLINK_REC:
+                rc = filter_recov_log_unlink_cb(ctxt, rec, &cookie);
+                break;
+        case MDS_SETATTR_REC:
+                rc = filter_recov_log_setattr_cb(ctxt, rec, &cookie);
+                break;
+        case LLOG_GEN_REC: {
+                struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
+                if (llog_gen_lt(lgr->lgr_gen, ctxt->loc_gen))
+                        rc = 0;
+                else
+                        rc = LLOG_PROC_BREAK;
+                CDEBUG(D_HA, "fetch generation log, send cookie\n");
+                llog_cancel(ctxt, NULL, 1, &cookie, 0);
+                RETURN(rc);
+                }
+                break;
+        default:
+                CERROR("log record type %08x unknown\n", rec->lrh_type);
+                RETURN(-EINVAL);
+                break;
+        }
 
         RETURN(rc);
 }