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 },
{ "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 }
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff