diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/obdclass/llog_swab.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/obdclass/llog_swab.c | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c deleted file mode 100644 index b431c3408fe4..000000000000 --- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c +++ /dev/null @@ -1,412 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * 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. - * - * 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). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, 2015, Intel Corporation. - */ -/* - * 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 <jacob@clusterfs.com> - */ - -#define DEBUG_SUBSYSTEM S_LOG - -#include <llog_swab.h> -#include <lustre_log.h> - -static void print_llogd_body(struct llogd_body *d) -{ - CDEBUG(D_OTHER, "llogd body: %p\n", d); - CDEBUG(D_OTHER, "\tlgd_logid.lgl_oi: " DOSTID "\n", - POSTID(&d->lgd_logid.lgl_oi)); - CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen); - CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx); - CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags); - CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index); - CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index); - CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len); - CDEBUG(D_OTHER, "\tlgd_cur_offset: %#llx\n", d->lgd_cur_offset); -} - -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_ost_id(struct ost_id *oid) -{ - if (fid_seq_is_mdt0(oid->oi.oi_seq)) { - __swab64s(&oid->oi.oi_id); - __swab64s(&oid->oi.oi_seq); - } else { - lustre_swab_lu_fid(&oid->oi_fid); - } -} -EXPORT_SYMBOL(lustre_swab_ost_id); - -static void lustre_swab_llog_id(struct llog_logid *log_id) -{ - __swab64s(&log_id->lgl_oi.oi.oi_id); - __swab64s(&log_id->lgl_oi.oi.oi_seq); - __swab32s(&log_id->lgl_ogen); -} - -void lustre_swab_llogd_body(struct llogd_body *d) -{ - print_llogd_body(d); - lustre_swab_llog_id(&d->lgd_logid); - __swab32s(&d->lgd_ctxt_idx); - __swab32s(&d->lgd_llh_flags); - __swab32s(&d->lgd_index); - __swab32s(&d->lgd_saved_index); - __swab32s(&d->lgd_len); - __swab64s(&d->lgd_cur_offset); - print_llogd_body(d); -} -EXPORT_SYMBOL(lustre_swab_llogd_body); - -void lustre_swab_llogd_conn_body(struct llogd_conn_body *d) -{ - __swab64s(&d->lgdc_gen.mnt_cnt); - __swab64s(&d->lgdc_gen.conn_cnt); - lustre_swab_llog_id(&d->lgdc_logid); - __swab32s(&d->lgdc_ctxt_idx); -} -EXPORT_SYMBOL(lustre_swab_llogd_conn_body); - -static void lustre_swab_ll_fid(struct ll_fid *fid) -{ - __swab64s(&fid->id); - __swab32s(&fid->generation); - __swab32s(&fid->f_type); -} - -void lustre_swab_lu_seq_range(struct lu_seq_range *range) -{ - __swab64s(&range->lsr_start); - __swab64s(&range->lsr_end); - __swab32s(&range->lsr_index); - __swab32s(&range->lsr_flags); -} -EXPORT_SYMBOL(lustre_swab_lu_seq_range); - -void lustre_swab_llog_rec(struct llog_rec_hdr *rec) -{ - struct llog_rec_tail *tail = NULL; - - __swab32s(&rec->lrh_len); - __swab32s(&rec->lrh_index); - __swab32s(&rec->lrh_type); - __swab32s(&rec->lrh_id); - - switch (rec->lrh_type) { - case OST_SZ_REC: - { - struct llog_size_change_rec *lsc = - (struct llog_size_change_rec *)rec; - - lustre_swab_ll_fid(&lsc->lsc_fid); - __swab32s(&lsc->lsc_ioepoch); - tail = &lsc->lsc_tail; - break; - } - case MDS_UNLINK_REC: - { - struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec; - - __swab64s(&lur->lur_oid); - __swab32s(&lur->lur_oseq); - __swab32s(&lur->lur_count); - tail = &lur->lur_tail; - break; - } - case MDS_UNLINK64_REC: - { - struct llog_unlink64_rec *lur = - (struct llog_unlink64_rec *)rec; - - lustre_swab_lu_fid(&lur->lur_fid); - __swab32s(&lur->lur_count); - tail = &lur->lur_tail; - break; - } - case CHANGELOG_REC: - { - struct llog_changelog_rec *cr = - (struct llog_changelog_rec *)rec; - - __swab16s(&cr->cr.cr_namelen); - __swab16s(&cr->cr.cr_flags); - __swab32s(&cr->cr.cr_type); - __swab64s(&cr->cr.cr_index); - __swab64s(&cr->cr.cr_prev); - __swab64s(&cr->cr.cr_time); - lustre_swab_lu_fid(&cr->cr.cr_tfid); - lustre_swab_lu_fid(&cr->cr.cr_pfid); - if (cr->cr.cr_flags & CLF_RENAME) { - struct changelog_ext_rename *rnm = - changelog_rec_rename(&cr->cr); - - lustre_swab_lu_fid(&rnm->cr_sfid); - lustre_swab_lu_fid(&rnm->cr_spfid); - } - /* - * Because the tail follows a variable-length structure we need - * to compute its location at runtime - */ - tail = (struct llog_rec_tail *)((char *)&cr->cr + - changelog_rec_size(&cr->cr) + - cr->cr.cr_namelen); - 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); - tail = &cur->cur_tail; - break; - } - - case HSM_AGENT_REC: { - struct llog_agent_req_rec *arr = - (struct llog_agent_req_rec *)rec; - - __swab32s(&arr->arr_hai.hai_len); - __swab32s(&arr->arr_hai.hai_action); - lustre_swab_lu_fid(&arr->arr_hai.hai_fid); - lustre_swab_lu_fid(&arr->arr_hai.hai_dfid); - __swab64s(&arr->arr_hai.hai_cookie); - __swab64s(&arr->arr_hai.hai_extent.offset); - __swab64s(&arr->arr_hai.hai_extent.length); - __swab64s(&arr->arr_hai.hai_gid); - /* no swabing for opaque data */ - /* hai_data[0]; */ - break; - } - - case MDS_SETATTR64_REC: - { - struct llog_setattr64_rec *lsr = - (struct llog_setattr64_rec *)rec; - - lustre_swab_ost_id(&lsr->lsr_oi); - __swab32s(&lsr->lsr_uid); - __swab32s(&lsr->lsr_uid_h); - __swab32s(&lsr->lsr_gid); - __swab32s(&lsr->lsr_gid_h); - __swab64s(&lsr->lsr_valid); - tail = &lsr->lsr_tail; - break; - } - case OBD_CFG_REC: - /* these are swabbed as they are consumed */ - break; - case LLOG_HDR_MAGIC: - { - struct llog_log_hdr *llh = (struct llog_log_hdr *)rec; - - __swab64s(&llh->llh_timestamp); - __swab32s(&llh->llh_count); - __swab32s(&llh->llh_bitmap_offset); - __swab32s(&llh->llh_flags); - __swab32s(&llh->llh_size); - __swab32s(&llh->llh_cat_idx); - tail = LLOG_HDR_TAIL(llh); - break; - } - case LLOG_LOGID_MAGIC: - { - struct llog_logid_rec *lid = (struct llog_logid_rec *)rec; - - lustre_swab_llog_id(&lid->lid_id); - tail = &lid->lid_tail; - break; - } - case LLOG_GEN_REC: - { - struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec; - - __swab64s(&lgr->lgr_gen.mnt_cnt); - __swab64s(&lgr->lgr_gen.conn_cnt); - tail = &lgr->lgr_tail; - break; - } - case LLOG_PAD_MAGIC: - break; - default: - CERROR("Unknown llog rec type %#x swabbing rec %p\n", - rec->lrh_type, rec); - } - - if (tail) { - __swab32s(&tail->lrt_len); - __swab32s(&tail->lrt_index); - } -} -EXPORT_SYMBOL(lustre_swab_llog_rec); - -static void print_llog_hdr(struct llog_log_hdr *h) -{ - CDEBUG(D_OTHER, "llog header: %p\n", h); - CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index); - CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len); - CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type); - CDEBUG(D_OTHER, "\tllh_timestamp: %#llx\n", h->llh_timestamp); - CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count); - CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset); - CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags); - CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size); - CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx); - CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", - LLOG_HDR_TAIL(h)->lrt_index); - CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", - LLOG_HDR_TAIL(h)->lrt_len); -} - -void lustre_swab_llog_hdr(struct llog_log_hdr *h) -{ - print_llog_hdr(h); - - lustre_swab_llog_rec(&h->llh_hdr); - - print_llog_hdr(h); -} -EXPORT_SYMBOL(lustre_swab_llog_hdr); - -static void print_lustre_cfg(struct lustre_cfg *lcfg) -{ - int i; - - if (!(libcfs_debug & D_OTHER)) /* don't loop on nothing */ - return; - CDEBUG(D_OTHER, "lustre_cfg: %p\n", lcfg); - CDEBUG(D_OTHER, "\tlcfg->lcfg_version: %#x\n", lcfg->lcfg_version); - - CDEBUG(D_OTHER, "\tlcfg->lcfg_command: %#x\n", lcfg->lcfg_command); - CDEBUG(D_OTHER, "\tlcfg->lcfg_num: %#x\n", lcfg->lcfg_num); - CDEBUG(D_OTHER, "\tlcfg->lcfg_flags: %#x\n", lcfg->lcfg_flags); - CDEBUG(D_OTHER, "\tlcfg->lcfg_nid: %s\n", libcfs_nid2str(lcfg->lcfg_nid)); - - CDEBUG(D_OTHER, "\tlcfg->lcfg_bufcount: %d\n", lcfg->lcfg_bufcount); - if (lcfg->lcfg_bufcount < LUSTRE_CFG_MAX_BUFCOUNT) - for (i = 0; i < lcfg->lcfg_bufcount; i++) - CDEBUG(D_OTHER, "\tlcfg->lcfg_buflens[%d]: %d\n", - i, lcfg->lcfg_buflens[i]); -} - -void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg) -{ - int i; - - __swab32s(&lcfg->lcfg_version); - - if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) { - CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n", - lcfg->lcfg_version, LUSTRE_CFG_VERSION); - return; - } - - __swab32s(&lcfg->lcfg_command); - __swab32s(&lcfg->lcfg_num); - __swab32s(&lcfg->lcfg_flags); - __swab64s(&lcfg->lcfg_nid); - __swab32s(&lcfg->lcfg_bufcount); - for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++) - __swab32s(&lcfg->lcfg_buflens[i]); - - print_lustre_cfg(lcfg); -} - -/* 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; - - 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); - } -} |