X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fobdclass%2Fllog_swab.c;h=a6a430d3ca6c5e1b961d1a47fdfeafe4314ac2e5;hb=a775bb1e09ebc0d5058a765cca978b61b7653370;hp=4f45df02cd7328a688472b119561f74b1e70ff2a;hpb=113303973ec9f8484eb2355a1a6ef3c4c7fd6a56;p=fs%2Flustre-release.git diff --git a/lustre/obdclass/llog_swab.c b/lustre/obdclass/llog_swab.c index 4f45df0..a6a430d 100644 --- a/lustre/obdclass/llog_swab.c +++ b/lustre/obdclass/llog_swab.c @@ -1,29 +1,43 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * Copyright (C) 2004-2005 Cluster File Systems, Inc. - * Author: jacob berkman + * GPL HEADER START * - * This file is part of the Lustre file system, http://www.lustre.org - * Lustre is a trademark of Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * 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. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. * - * 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. + * This program 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 version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). * - * 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. + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * lustre/obdclass/llog_swab.c * * Swabbing of llog datatypes (from disk or over the wire). * + * Author: jacob berkman */ #define DEBUG_SUBSYSTEM S_LOG @@ -85,6 +99,22 @@ void lustre_swab_ll_fid(struct ll_fid *fid) } EXPORT_SYMBOL(lustre_swab_ll_fid); +void lustre_swab_lu_fid(struct lu_fid *fid) +{ + __swab64s (&fid->f_seq); + __swab32s (&fid->f_oid); + __swab32s (&fid->f_ver); +} +EXPORT_SYMBOL(lustre_swab_lu_fid); + +void lustre_swab_lu_seq_range(struct lu_seq_range *range) +{ + __swab64s (&range->lsr_start); + __swab64s (&range->lsr_end); + __swab32s (&range->lsr_mdt); +} +EXPORT_SYMBOL(lustre_swab_lu_seq_range); + void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail) { __swab32s(&rec->lrh_len); @@ -97,8 +127,7 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail) (struct llog_size_change_rec *)rec; lustre_swab_ll_fid(&lsc->lsc_fid); - __swab32s(&lsc->lsc_io_epoch); - + __swab32s(&lsc->lsc_ioepoch); break; } @@ -110,7 +139,6 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail) __swab64s(&lur->lur_oid); __swab32s(&lur->lur_ogen); - break; } @@ -121,12 +149,44 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail) __swab32s(&lsr->lsr_ogen); __swab32s(&lsr->lsr_uid); __swab32s(&lsr->lsr_gid); + break; + } + + case CHANGELOG_REC: { + struct llog_changelog_rec *cr = (struct llog_changelog_rec*)rec; + + __swab16s(&cr->cr_flags); + __swab16s(&cr->cr_namelen); + __swab32s(&cr->cr_type); + __swab64s(&cr->cr_index); + __swab64s(&cr->cr_prev); + __swab64s(&cr->cr_time); + lustre_swab_lu_fid(&cr->cr_tfid); + lustre_swab_lu_fid(&cr->cr_pfid); + break; + } + + case CHANGELOG_USER_REC: { + struct llog_changelog_user_rec *cur = + (struct llog_changelog_user_rec*)rec; + + __swab32s(&cur->cur_id); + __swab64s(&cur->cur_endrec); + break; + } + + case MDS_SETATTR64_REC: { + struct llog_setattr64_rec *lsr = (struct llog_setattr64_rec *)rec; + + __swab64s(&lsr->lsr_oid); + __swab32s(&lsr->lsr_ogen); + __swab32s(&lsr->lsr_uid); + __swab32s(&lsr->lsr_gid); break; } case OBD_CFG_REC: - case PTL_CFG_REC: /* obsolete */ /* these are swabbed as they are consumed */ break; @@ -143,7 +203,6 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail) __swab32s(&llh->llh_tail.lrt_index); __swab32s(&llh->llh_tail.lrt_len); } - break; } @@ -155,10 +214,8 @@ void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail) __swab32s(&lid->lid_id.lgl_ogen); break; } - + case LLOG_JOIN_REC: case LLOG_PAD_MAGIC: - /* ignore old pad records of type 0 */ - case 0: break; default: @@ -251,3 +308,67 @@ void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg) return; } EXPORT_SYMBOL(lustre_swab_lustre_cfg); + +/* used only for compatibility with old on-disk cfg_marker data */ +struct cfg_marker32 { + __u32 cm_step; + __u32 cm_flags; + __u32 cm_vers; + __u32 padding; + __u32 cm_createtime; + __u32 cm_canceltime; + char cm_tgtname[MTI_NAME_MAXLEN]; + char cm_comment[MTI_NAME_MAXLEN]; +}; + +#define MTI_NAMELEN32 (MTI_NAME_MAXLEN - \ + (sizeof(struct cfg_marker) - sizeof(struct cfg_marker32))) + +void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size) +{ + struct cfg_marker32 *cm32 = (struct cfg_marker32*)marker; + ENTRY; + + if (swab) { + __swab32s(&marker->cm_step); + __swab32s(&marker->cm_flags); + __swab32s(&marker->cm_vers); + } + if (size == sizeof(*cm32)) { + __u32 createtime, canceltime; + /* There was a problem with the original declaration of + * cfg_marker on 32-bit systems because it used time_t as + * a wire protocol structure, and didn't verify this in + * wirecheck. We now have to convert the offsets of the + * later fields in order to work on 32- and 64-bit systems. + * + * Fortunately, the cm_comment field has no functional use + * so can be sacrificed when converting the timestamp size. + * + * Overwrite fields from the end first, so they are not + * clobbered, and use memmove() instead of memcpy() because + * the source and target buffers overlap. bug 16771 */ + createtime = cm32->cm_createtime; + canceltime = cm32->cm_canceltime; + memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32); + marker->cm_comment[MTI_NAMELEN32 - 1] = '\0'; + memmove(marker->cm_tgtname, cm32->cm_tgtname, + sizeof(marker->cm_tgtname)); + if (swab) { + __swab32s(&createtime); + __swab32s(&canceltime); + } + marker->cm_createtime = createtime; + marker->cm_canceltime = canceltime; + CDEBUG(D_CONFIG, "Find old cfg_marker(Srv32b,Clt64b) " + "for target %s, converting\n", + marker->cm_tgtname); + } else if (swab) { + __swab64s(&marker->cm_createtime); + __swab64s(&marker->cm_canceltime); + } + + EXIT; + return; +} +EXPORT_SYMBOL(lustre_swab_cfg_marker);