* license text for more details.
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
RETURN(rc);
}
-EXPORT_SYMBOL(mds_lov_init_objids);
void mds_lov_destroy_objids(struct obd_device *obd)
{
FREE_BITMAP(mds->mds_lov_page_dirty);
EXIT;
}
-EXPORT_SYMBOL(mds_lov_destroy_objids);
-
-void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm)
-{
- struct mds_obd *mds = &obd->u.mds;
- int j;
- ENTRY;
-
- /* if we create file without objects - lmm is NULL */
- if (lmm == NULL)
- return;
-
- for (j = 0; j < le32_to_cpu(lmm->lmm_stripe_count); j++) {
- int i = le32_to_cpu(lmm->lmm_objects[j].l_ost_idx);
- obd_id id = le64_to_cpu(lmm->lmm_objects[j].l_object_id);
- int page = i / OBJID_PER_PAGE();
- int idx = i % OBJID_PER_PAGE();
- obd_id *data = mds->mds_lov_page_array[page];
-
- CDEBUG(D_INODE,"update last object for ost %d - new %llu"
- " old %llu\n", i, id, data[idx]);
- if (id > data[idx]) {
- data[idx] = id;
- cfs_bitmap_set(mds->mds_lov_page_dirty, page);
- }
- }
- EXIT;
-}
-EXPORT_SYMBOL(mds_lov_update_objids);
static int mds_lov_read_objids(struct obd_device *obd)
{
RETURN(rc);
}
-int mds_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
- void *karg, void *uarg)
-{
- static struct obd_uuid cfg_uuid = { .uuid = "config_uuid" };
- struct obd_device *obd = exp->exp_obd;
- struct mds_obd *mds = &obd->u.mds;
- struct obd_ioctl_data *data = karg;
- struct lvfs_run_ctxt saved;
- int rc = 0;
-
- ENTRY;
- CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
-
- switch (cmd) {
- case OBD_IOC_RECORD: {
- char *name = data->ioc_inlbuf1;
- struct llog_ctxt *ctxt;
-
- if (mds->mds_cfg_llh)
- RETURN(-EBUSY);
-
- ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = llog_create(ctxt, &mds->mds_cfg_llh, NULL, name);
- llog_ctxt_put(ctxt);
- if (rc == 0)
- llog_init_handle(mds->mds_cfg_llh, LLOG_F_IS_PLAIN,
- &cfg_uuid);
- else
- mds->mds_cfg_llh = NULL;
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- RETURN(rc);
- }
-
- case OBD_IOC_ENDRECORD: {
- if (!mds->mds_cfg_llh)
- RETURN(-EBADF);
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = llog_close(mds->mds_cfg_llh);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- mds->mds_cfg_llh = NULL;
- RETURN(rc);
- }
-
- case OBD_IOC_CLEAR_LOG: {
- char *name = data->ioc_inlbuf1;
- struct llog_ctxt *ctxt;
- if (mds->mds_cfg_llh)
- RETURN(-EBUSY);
-
- ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = llog_create(ctxt, &mds->mds_cfg_llh, NULL, name);
- llog_ctxt_put(ctxt);
- if (rc == 0) {
- llog_init_handle(mds->mds_cfg_llh, LLOG_F_IS_PLAIN,
- NULL);
-
- rc = llog_destroy(mds->mds_cfg_llh);
- llog_free_handle(mds->mds_cfg_llh);
- }
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- mds->mds_cfg_llh = NULL;
- RETURN(rc);
- }
-
- case OBD_IOC_DORECORD: {
- char *cfg_buf;
- struct llog_rec_hdr rec;
- if (!mds->mds_cfg_llh)
- RETURN(-EBADF);
-
- rec.lrh_len = llog_data_len(data->ioc_plen1);
-
- if (data->ioc_type == LUSTRE_CFG_TYPE) {
- rec.lrh_type = OBD_CFG_REC;
- } else {
- CERROR("unknown cfg record type:%d \n", data->ioc_type);
- RETURN(-EINVAL);
- }
-
- OBD_ALLOC(cfg_buf, data->ioc_plen1);
- if (cfg_buf == NULL)
- RETURN(-EINVAL);
- rc = copy_from_user(cfg_buf, data->ioc_pbuf1, data->ioc_plen1);
- if (rc) {
- OBD_FREE(cfg_buf, data->ioc_plen1);
- RETURN(rc);
- }
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = llog_write_rec(mds->mds_cfg_llh, &rec, NULL, 0,
- cfg_buf, -1);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- OBD_FREE(cfg_buf, data->ioc_plen1);
- RETURN(rc);
- }
-
- case OBD_IOC_PARSE: {
- struct llog_ctxt *ctxt =
- llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = class_config_parse_llog(ctxt, data->ioc_inlbuf1, NULL);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- if (rc)
- RETURN(rc);
-
- RETURN(rc);
- }
-
- case OBD_IOC_DUMP_LOG: {
- struct llog_ctxt *ctxt =
- llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- rc = class_config_dump_llog(ctxt, data->ioc_inlbuf1, NULL);
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- if (rc)
- RETURN(rc);
-
- RETURN(rc);
- }
-
- case OBD_IOC_SYNC: {
- CDEBUG(D_INFO, "syncing mds %s\n", obd->obd_name);
- rc = fsfilt_sync(obd, obd->u.obt.obt_sb);
- RETURN(rc);
- }
-
- case OBD_IOC_SET_READONLY: {
- void *handle;
- struct inode *inode = obd->u.obt.obt_sb->s_root->d_inode;
- BDEVNAME_DECLARE_STORAGE(tmp);
- CERROR("*** setting device %s read-only ***\n",
- ll_bdevname(obd->u.obt.obt_sb, tmp));
-
- handle = fsfilt_start(obd, inode, FSFILT_OP_MKNOD, NULL);
- if (!IS_ERR(handle))
- rc = fsfilt_commit(obd, inode, handle, 1);
-
- CDEBUG(D_HA, "syncing mds %s\n", obd->obd_name);
- rc = fsfilt_sync(obd, obd->u.obt.obt_sb);
-
- lvfs_set_rdonly(obd, obd->u.obt.obt_sb);
- RETURN(0);
- }
-
- case OBD_IOC_CATLOGLIST: {
- int count = mds->mds_lov_desc.ld_tgt_count;
- rc = llog_catalog_list(obd, count, data);
- RETURN(rc);
-
- }
- case OBD_IOC_LLOG_CHECK:
- case OBD_IOC_LLOG_CANCEL:
- case OBD_IOC_LLOG_REMOVE: {
- struct llog_ctxt *ctxt =
- llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- int rc2;
- __u32 group;
-
- obd_llog_finish(obd, mds->mds_lov_desc.ld_tgt_count);
- push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
- rc = llog_ioctl(ctxt, cmd, data);
- pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
- llog_cat_initialize(obd, &obd->obd_olg,
- mds->mds_lov_desc.ld_tgt_count, NULL);
- group = FILTER_GROUP_MDS0 + mds->mds_id;
- llog_ctxt_put(ctxt);
- rc2 = obd_set_info_async(mds->mds_osc_exp,
- strlen(KEY_MDS_CONN), KEY_MDS_CONN,
- sizeof(group), &group, NULL);
- if (!rc)
- rc = rc2;
- RETURN(rc);
- }
- case OBD_IOC_LLOG_INFO:
- case OBD_IOC_LLOG_PRINT: {
- struct llog_ctxt *ctxt =
- llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
-
- push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
- rc = llog_ioctl(ctxt, cmd, data);
- pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
-
- RETURN(rc);
- }
-
- case OBD_IOC_ABORT_RECOVERY:
- CERROR("aborting recovery for device %s\n", obd->obd_name);
- target_stop_recovery_thread(obd);
- RETURN(0);
-
- default:
- CDEBUG(D_INFO, "unknown command %x\n", cmd);
- RETURN(-EINVAL);
- }
- RETURN(0);
-
-}
-
/* Collect the preconditions we need to allow client connects */
static void mds_allow_cli(struct obd_device *obd, unsigned int flag)
{
RETURN(rc);
}
-/* Convert the on-disk LOV EA structre.
- * We always try to convert from an old LOV EA format to the common in-memory
- * (lsm) format (obd_unpackmd() understands the old on-disk (lmm) format) and
- * then convert back to the new on-disk format and save it back to disk
- * (obd_packmd() only ever saves to the new on-disk format) so we don't have
- * to convert it each time this inode is accessed.
- *
- * This function is a bit interesting in the error handling. We can safely
- * ship the old lmm to the client in case of failure, since it uses the same
- * obd_unpackmd() code and can do the conversion if the MDS fails for some
- * reason. We will not delete the old lmm data until we have written the
- * new format lmm data in fsfilt_set_md(). */
-int mds_convert_lov_ea(struct obd_device *obd, struct inode *inode,
- struct lov_mds_md *lmm, int lmm_size)
-{
- struct lov_stripe_md *lsm = NULL;
- void *handle;
- int rc, err;
- ENTRY;
-
- if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC ||
- le32_to_cpu(lmm->lmm_magic == LOV_MAGIC_JOIN))
- RETURN(0);
-
- CDEBUG(D_INODE, "converting LOV EA on %lu/%u from %#08x to %#08x\n",
- inode->i_ino, inode->i_generation, le32_to_cpu(lmm->lmm_magic),
- LOV_MAGIC);
-
- rc = obd_unpackmd(obd->u.mds.mds_osc_exp, &lsm, lmm, lmm_size);
- if (rc < 0)
- GOTO(conv_end, rc);
-
- rc = obd_packmd(obd->u.mds.mds_osc_exp, &lmm, lsm);
- if (rc < 0)
- GOTO(conv_free, rc);
- lmm_size = rc;
-
- handle = fsfilt_start(obd, inode, FSFILT_OP_SETATTR, NULL);
- if (IS_ERR(handle)) {
- rc = PTR_ERR(handle);
- GOTO(conv_free, rc);
- }
-
- rc = fsfilt_set_md(obd, inode, handle, lmm, lmm_size, "lov");
-
- err = fsfilt_commit(obd, inode, handle, 0);
- if (!rc)
- rc = err ? err : lmm_size;
- GOTO(conv_free, rc);
-conv_free:
- obd_free_memmd(obd->u.mds.mds_osc_exp, &lsm);
-conv_end:
- return rc;
-}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff