X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmdc%2Flproc_mdc.c;h=e78332d0024ed0fd4a0ee7fc3badfa8d4a72c3e4;hb=2f347eb0da65973bfc4acbd49ad48698bf71441f;hp=c5cefe4b77ae3bba0707eacdb3190eb0557c2f8c;hpb=e7f3c2955a426bbe3e39b32208056b9ab8667190;p=fs%2Flustre-release.git diff --git a/lustre/mdc/lproc_mdc.c b/lustre/mdc/lproc_mdc.c index c5cefe4..e78332d 100644 --- a/lustre/mdc/lproc_mdc.c +++ b/lustre/mdc/lproc_mdc.c @@ -77,60 +77,176 @@ static int mdc_wr_max_rpcs_in_flight(struct file *file, const char *buffer, return count; } -static int mdc_changelog_seq_release(struct inode *inode, struct file *file) +static struct lnl_hdr *changelog_lnl_alloc(int len, int flags) { - struct seq_file *seq = file->private_data; - struct changelog_seq_iter *csi = seq->private; + struct lnl_hdr *lh; - if (csi && csi->csi_llh) - llog_cat_put(csi->csi_llh); - if (csi && csi->csi_ctxt) - llog_ctxt_put(csi->csi_ctxt); + OBD_ALLOC(lh, len); + if (lh == NULL) + RETURN(NULL); - return (changelog_seq_release(inode, file)); + lh->lnl_magic = LNL_MAGIC; + lh->lnl_transport = LNL_TRANSPORT_CHANGELOG; + lh->lnl_flags = flags; + lh->lnl_msgtype = CL_RECORD; + lh->lnl_msglen = len; + return lh; } -static int mdc_changelog_seq_open(struct inode *inode, struct file *file) +#define D_CHANGELOG 0 + +static int changelog_show_cb(struct llog_handle *llh, struct llog_rec_hdr *hdr, + void *data) { - struct changelog_seq_iter *csi; - int rc; + struct changelog_show *cs = data; + struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr; + struct lnl_hdr *lh; + int len, rc; ENTRY; - rc = changelog_seq_open(inode, file, &csi); - if (rc) - RETURN(rc); + if ((rec->cr_hdr.lrh_type != CHANGELOG_REC) || + (rec->cr.cr_type >= CL_LAST)) { + CERROR("Not a changelog rec %d/%d\n", rec->cr_hdr.lrh_type, + rec->cr.cr_type); + RETURN(-EINVAL); + } + + if (rec->cr.cr_index < cs->cs_startrec) { + /* Skip entries earlier than what we are interested in */ + CDEBUG(D_CHANGELOG, "rec="LPU64" start="LPU64"\n", + rec->cr.cr_index, cs->cs_startrec); + RETURN(0); + } + + CDEBUG(D_CHANGELOG, LPU64" %02d%-5s "LPU64" 0x%x t="DFID" p="DFID + " %.*s\n", rec->cr.cr_index, rec->cr.cr_type, + changelog_type2str(rec->cr.cr_type), rec->cr.cr_time, + rec->cr.cr_flags & CLF_FLAGMASK, + PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid), + rec->cr.cr_namelen, rec->cr.cr_name); + + len = sizeof(*lh) + sizeof(rec->cr) + rec->cr.cr_namelen; + + /* Set up the netlink message */ + lh = changelog_lnl_alloc(len, cs->cs_flags); + if (lh == NULL) + RETURN(-ENOMEM); + memcpy(lh + 1, &rec->cr, len - sizeof(*lh)); + + rc = libcfs_klnl_msg_put(cs->cs_pid, 0, lh); + CDEBUG(D_CHANGELOG, "nlmsg pid %d len %d rc %d\n", cs->cs_pid, len, rc); + + OBD_FREE(lh, len); + + RETURN(rc); +} + +static int lproc_mdc_wr_changelog(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + struct obd_device *obd = data; + struct llog_ctxt *ctxt; + struct llog_handle *llh; + struct lnl_hdr *lnlh; + struct changelog_show cs = {}; + int rc; + + if (count != sizeof(cs)) + return -EINVAL; + + if (cfs_copy_from_user(&cs, buffer, sizeof(cs))) + return -EFAULT; + + CDEBUG(D_CHANGELOG, "changelog to pid=%d start "LPU64"\n", + cs.cs_pid, cs.cs_startrec); /* Set up the remote catalog handle */ - /* Note the proc file is set up with obd in data, not mdc_device */ - csi->csi_ctxt = llog_get_context((struct obd_device *)csi->csi_dev, - LLOG_CHANGELOG_REPL_CTXT); - if (csi->csi_ctxt == NULL) - GOTO(out, rc = -ENOENT); - rc = llog_create(csi->csi_ctxt, &csi->csi_llh, NULL, CHANGELOG_CATALOG); + ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT); + if (ctxt == NULL) + RETURN(-ENOENT); + rc = llog_create(ctxt, &llh, NULL, CHANGELOG_CATALOG); if (rc) { CERROR("llog_create() failed %d\n", rc); GOTO(out, rc); } - rc = llog_init_handle(csi->csi_llh, LLOG_F_IS_CAT, NULL); + rc = llog_init_handle(llh, LLOG_F_IS_CAT, NULL); if (rc) { CERROR("llog_init_handle failed %d\n", rc); GOTO(out, rc); } + rc = llog_cat_process(llh, changelog_show_cb, &cs, 0, 0); + + /* Send EOF */ + if ((lnlh = changelog_lnl_alloc(sizeof(*lnlh), cs.cs_flags))) { + lnlh->lnl_msgtype = CL_EOF; + libcfs_klnl_msg_put(cs.cs_pid, 0, lnlh); + OBD_FREE(lnlh, sizeof(*lnlh)); + } + out: - if (rc) - mdc_changelog_seq_release(inode, file); - RETURN(rc); + if (llh) + llog_cat_put(llh); + if (ctxt) + llog_ctxt_put(ctxt); + if (rc < 0) + return rc; + return count; } -static struct file_operations mdc_changelog_fops = { - .owner = THIS_MODULE, - .open = mdc_changelog_seq_open, - .read = seq_read, - .llseek = changelog_seq_lseek, - .release = mdc_changelog_seq_release, -}; +/* temporary for testing */ +static int mdc_wr_netlink(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + struct obd_device *obd = data; + struct lnl_hdr *lh; + struct hsm_action_list *hal; + struct hsm_action_item *hai; + int len; + int pid, rc; + rc = lprocfs_write_helper(buffer, count, &pid); + if (rc) + return rc; + + if (pid < 0) + return -ERANGE; + CWARN("message to pid %d\n", pid); + + len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN + + /* for mockup below */ 2 * cfs_size_round(sizeof(*hai)); + + OBD_ALLOC(lh, len); + + lh->lnl_magic = LNL_MAGIC; + lh->lnl_transport = LNL_TRANSPORT_HSM; + lh->lnl_msgtype = HMT_ACTION_LIST; + lh->lnl_msglen = len; + + hal = (struct hsm_action_list *)(lh + 1); + hal->hal_version = HAL_VERSION; + hal->hal_archive_num = 1; + obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN); + + /* mock up an action list */ + hal->hal_count = 2; + hai = hai_zero(hal); + hai->hai_action = HSMA_ARCHIVE; + hai->hai_fid.f_oid = 5; + hai->hai_len = sizeof(*hai); + hai = hai_next(hai); + hai->hai_action = HSMA_RESTORE; + hai->hai_fid.f_oid = 10; + hai->hai_len = sizeof(*hai); + + /* This works for either broadcast or unicast to a single pid */ + rc = libcfs_klnl_msg_put(pid, pid == 0 ? LNL_GRP_HSM : 0, lh); + + OBD_FREE(lh, len); + if (rc < 0) + return rc; + return count; +} static struct lprocfs_vars lprocfs_mdc_obd_vars[] = { { "uuid", lprocfs_rd_uuid, 0, 0 }, @@ -147,12 +263,11 @@ static struct lprocfs_vars lprocfs_mdc_obd_vars[] = { { "mds_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 }, { "max_rpcs_in_flight", mdc_rd_max_rpcs_in_flight, mdc_wr_max_rpcs_in_flight, 0 }, - { "quota_resend_count", lprocfs_rd_quota_resend_count, - lprocfs_wr_quota_resend_count, 0}, { "timeouts", lprocfs_rd_timeouts, 0, 0 }, { "import", lprocfs_rd_import, 0, 0 }, { "state", lprocfs_rd_state, 0, 0 }, - { "changelog", 0, 0, 0, &mdc_changelog_fops, 0400 }, + { "changelog_trigger",0,lproc_mdc_wr_changelog, 0 }, + { "hsm_nl", 0, mdc_wr_netlink, 0, 0, 0222 }, { 0 } };