EXIT;
}
+/**
+ * currently exist two ways for know about ost count and max ost index.
+ * first - after ost is connected to mds and sync process finished
+ * second - get from lmm in recovery process, in case when mds not have configs,
+ * and ost isn't registered in mgs.
+ *
+ * \param mds pointer to mds structure
+ * \param index maxium ost index
+ *
+ * \retval -ENOMEM is not hame memory for new page
+ * \retval 0 is update passed
+ */
+static int mds_lov_update_max_ost(struct mds_obd *mds, obd_id index)
+{
+ __u32 page = index / OBJID_PER_PAGE();
+ __u32 off = index % OBJID_PER_PAGE();
+ obd_id *data = mds->mds_lov_page_array[page];
+
+ if (data == NULL) {
+ OBD_ALLOC(data, MDS_LOV_ALLOC_SIZE);
+ if (data == NULL)
+ RETURN(-ENOMEM);
+
+ mds->mds_lov_page_array[page] = data;
+ }
+
+ if (index > mds->mds_lov_objid_max_index) {
+ mds->mds_lov_objid_lastpage = page;
+ mds->mds_lov_objid_lastidx = off;
+ mds->mds_lov_objid_max_index = index;
+ }
+
+ /* workaround - New target not in objids file; increase mdsize */
+ /* ld_tgt_count is used as the max index everywhere, despite its name. */
+ if (data[off] == 0) {
+ __u32 stripes;
+
+ data[off] = 1;
+ mds->mds_lov_objid_count++;
+ stripes = min_t(__u32, LOV_MAX_STRIPE_COUNT,
+ mds->mds_lov_objid_count);
+
+ mds->mds_max_mdsize = lov_mds_md_size(stripes, LOV_MAGIC_V3);
+ mds->mds_max_cookiesize = stripes * sizeof(struct llog_cookie);
+
+ CDEBUG(D_CONFIG, "updated max_mdsize/max_cookiesize for %d"
+ " stripes: %d/%d\n", stripes, mds->mds_max_mdsize,
+ mds->mds_max_cookiesize);
+ }
+
+ EXIT;
+ return 0;
+}
+
+int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm)
+{
+ struct lov_ost_data_v1 *data;
+ __u32 count;
+ int rc = 0;
+ __u32 j;
+
+ /* if we create file without objects - lmm is NULL */
+ if (lmm == NULL)
+ return 0;
+
+ switch (le32_to_cpu(lmm->lmm_magic)) {
+ case LOV_MAGIC_V1:
+ count = le32_to_cpu(((struct lov_mds_md_v1*)lmm)->lmm_stripe_count);
+ data = &(((struct lov_mds_md_v1*)lmm)->lmm_objects[0]);
+ break;
+ case LOV_MAGIC_V3:
+ count = le32_to_cpu(((struct lov_mds_md_v3*)lmm)->lmm_stripe_count);
+ data = &(((struct lov_mds_md_v3*)lmm)->lmm_objects[0]);
+ break;
+ default:
+ CERROR("Unknow lmm type %X!\n", le32_to_cpu(lmm->lmm_magic));
+ RETURN(-EINVAL);
+ }
+
+
+ mutex_down(&obd->obd_dev_sem);
+ for (j = 0; j < count; j++) {
+ __u32 i = le32_to_cpu(data[j].l_ost_idx);
+ if (mds_lov_update_max_ost(&obd->u.mds, i)) {
+ rc = -ENOMEM;
+ break;
+ }
+ }
+ mutex_up(&obd->obd_dev_sem);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(mds_lov_prepare_objids);
+
+void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ int j;
+ struct lov_ost_data_v1 *obj;
+ int count;
+ ENTRY;
+
+ /* if we create file without objects - lmm is NULL */
+ if (lmm == NULL)
+ return;
+
+ switch (le32_to_cpu(lmm->lmm_magic)) {
+ case LOV_MAGIC_V1:
+ count = le32_to_cpu(((struct lov_mds_md_v1*)lmm)->lmm_stripe_count);
+ obj = &(((struct lov_mds_md_v1*)lmm)->lmm_objects[0]);
+ break;
+ case LOV_MAGIC_V3:
+ count = le32_to_cpu(((struct lov_mds_md_v3*)lmm)->lmm_stripe_count);
+ obj = &(((struct lov_mds_md_v3*)lmm)->lmm_objects[0]);
+ break;
+ default:
+ CERROR("Unknow lmm type %X !\n", le32_to_cpu(lmm->lmm_magic));
+ return;
+ }
+
+ for (j = 0; j < count; j++) {
+ __u32 i = le32_to_cpu(obj[j].l_ost_idx);
+ obd_id id = le64_to_cpu(obj[j].l_object_id);
+ __u32 page = i / OBJID_PER_PAGE();
+ __u32 idx = i % OBJID_PER_PAGE();
+ obd_id *data;
+
+ data = mds->mds_lov_page_array[page];
+
+ CDEBUG(D_INODE,"update last object for ost %u"
+ " - new "LPU64" old "LPU64"\n", i, id, data[idx]);
+ if (id > data[idx]) {
+ data[idx] = id;
+ cfs_bitmap_set(mds->mds_lov_page_dirty, page);
+ }
+ }
+ EXIT;
+ return;
+}
+EXPORT_SYMBOL(mds_lov_update_objids);
+
+
+static int mds_lov_update_from_read(struct mds_obd *mds, obd_id *data,
+ __u32 count)
+{
+ __u32 i;
+ __u32 stripes;
+
+ for(i = 0; i < count; i++) {
+ if (data[i] == 0)
+ continue;
+
+ mds->mds_lov_objid_count++;
+ }
+
+ stripes = min_t(__u32, LOV_MAX_STRIPE_COUNT,
+ mds->mds_lov_objid_count);
+
+ mds->mds_max_mdsize = lov_mds_md_size(stripes, LOV_MAGIC_V3);
+ mds->mds_max_cookiesize = stripes * sizeof(struct llog_cookie);
+
+ CDEBUG(D_CONFIG, "updated max_mdsize/max_cookiesize for %d stripes: "
+ "%d/%d\n", stripes, mds->mds_max_mdsize, mds->mds_max_cookiesize);
+
+ EXIT;
+ return 0;
+}
+
static int mds_lov_read_objids(struct obd_device *obd)
{
struct mds_obd *mds = &obd->u.mds;
CDEBUG(D_INFO, "file size %lu pages %d\n", size, page);
for (i = 0; i < page; i++) {
- obd_id *data = mds->mds_lov_page_array[i];
loff_t off_old = off;
- LASSERT(data == NULL);
- OBD_ALLOC(data, MDS_LOV_ALLOC_SIZE);
- if (data == NULL)
+ LASSERT(mds->mds_lov_page_array[i] == NULL);
+ OBD_ALLOC(mds->mds_lov_page_array[i], MDS_LOV_ALLOC_SIZE);
+ if (mds->mds_lov_page_array[i] == NULL)
GOTO(out, rc = -ENOMEM);
- mds->mds_lov_page_array[i] = data;
-
- rc = fsfilt_read_record(obd, mds->mds_lov_objid_filp, data,
+ rc = fsfilt_read_record(obd, mds->mds_lov_objid_filp, mds->mds_lov_page_array[i],
OBJID_PER_PAGE()*sizeof(obd_id), &off);
if (rc < 0) {
CERROR("Error reading objids %d\n", rc);
GOTO(out, rc);
}
- if (off == off_old)
- break; // eof
count += (off - off_old)/sizeof(obd_id);
+ if (mds_lov_update_from_read(mds, mds->mds_lov_page_array[i], count)) {
+ CERROR("Can't update mds data\n");
+ GOTO(out, rc = -EIO);
+ }
+
+ if (off == off_old)
+ break; // eof
}
- mds->mds_lov_objid_count = count;
- if (count) {
- count --;
- mds->mds_lov_objid_lastpage = count / OBJID_PER_PAGE();
- mds->mds_lov_objid_lastidx = count % OBJID_PER_PAGE();
- }
- CDEBUG(D_INFO, "Read %u - %u %u objid\n", count,
+ mds->mds_lov_objid_lastpage = i;
+ mds->mds_lov_objid_lastidx = count % OBJID_PER_PAGE();
+
+ CDEBUG(D_INFO, "Read %u - %u %u objid\n", mds->mds_lov_objid_count,
mds->mds_lov_objid_lastpage, mds->mds_lov_objid_lastidx);
out:
mds_lov_dump_objids("read",obd);
EXPORT_SYMBOL(mds_lov_write_objids);
static int mds_lov_get_objid(struct obd_device * obd,
- __u32 idx)
+ obd_id idx)
{
struct mds_obd *mds = &obd->u.mds;
unsigned int page;
page = idx / OBJID_PER_PAGE();
off = idx % OBJID_PER_PAGE();
data = mds->mds_lov_page_array[page];
- if (data == NULL) {
- OBD_ALLOC(data, MDS_LOV_ALLOC_SIZE);
- if (data == NULL)
- GOTO(out, rc = -ENOMEM);
-
- mds->mds_lov_page_array[page] = data;
- }
-
if (data[off] == 0) {
/* We never read this lastid; ask the osc */
struct obd_id_info lastid;
if (rc)
GOTO(out, rc);
- if (idx > mds->mds_lov_objid_count) {
- mds->mds_lov_objid_count = idx;
- mds->mds_lov_objid_lastpage = page;
- mds->mds_lov_objid_lastidx = off;
- }
cfs_bitmap_set(mds->mds_lov_page_dirty, page);
}
out:
LASSERT(!obd->obd_recovering);
- /* obd->obd_dev_sem must be held so mds_lov_objids doesn't change */
- LASSERT_SEM_LOCKED(&obd->obd_dev_sem);
-
info.idx = idx;
info.data = id;
rc = obd_set_info_async(mds->mds_osc_exp, sizeof(KEY_NEXT_ID),
{
struct mds_obd *mds = &obd->u.mds;
struct lov_desc *ld;
- __u32 stripes, valsize = sizeof(mds->mds_lov_desc);
+ __u32 valsize = sizeof(mds->mds_lov_desc);
int rc = 0;
ENTRY;
CDEBUG(D_CONFIG, "updated lov_desc, tgt_count: %d - idx %d / uuid %s\n",
mds->mds_lov_desc.ld_tgt_count, idx, uuid->uuid);
- stripes = min_t(__u32, LOV_MAX_STRIPE_COUNT,
- mds->mds_lov_desc.ld_tgt_count);
+ mutex_down(&obd->obd_dev_sem);
+ rc = mds_lov_update_max_ost(mds, idx);
+ mutex_up(&obd->obd_dev_sem);
+ if (rc != 0)
+ GOTO(out, rc );
- mds->mds_max_mdsize = lov_mds_md_size(stripes, LOV_MAGIC_V3);
- mds->mds_max_cookiesize = stripes * sizeof(struct llog_cookie);
- CDEBUG(D_CONFIG, "updated max_mdsize/max_cookiesize for %d stripes: "
- "%d/%d\n", mds->mds_max_mdsize, mds->mds_max_cookiesize,
- stripes);
/* If we added a target we have to reconnect the llogs */
/* We only _need_ to do this at first add (idx), or the first time
/*XXX this notifies the MDD until lov handling use old mds code */
if (obd->obd_upcall.onu_owner) {
LASSERT(obd->obd_upcall.onu_upcall != NULL);
- rc = obd->obd_upcall.onu_upcall(NULL, NULL, 0,
+ rc = obd->obd_upcall.onu_upcall(obd, NULL, OBD_NOTIFY_ACTIVE,
obd->obd_upcall.onu_owner);
}
out:
ENTRY;
/* Don't let anyone else mess with mds_lov_objids now */
- mutex_down(&obd->obd_dev_sem);
-
rc = mds_lov_update_desc(obd, idx, &watched->u.cli.cl_target_uuid);
if (rc)
GOTO(out, rc);
data[off], idx, rc);
}
out:
- mutex_up(&obd->obd_dev_sem);
RETURN(rc);
}
RETURN(-ENOTCONN);
}
+ mutex_down(&obd->obd_dev_sem);
+ rc = mds_lov_read_objids(obd);
+ mutex_up(&obd->obd_dev_sem);
+ if (rc) {
+ CERROR("cannot read %s: rc = %d\n", "lov_objids", rc);
+ GOTO(err_exit, rc);
+ }
+
+ rc = obd_register_observer(mds->mds_osc_obd, obd);
+ if (rc) {
+ CERROR("MDS cannot register as observer of LOV %s (%d)\n",
+ lov_name, rc);
+ GOTO(err_exit, rc);
+ }
+
OBD_ALLOC(data, sizeof(*data));
if (data == NULL)
RETURN(-ENOMEM);
}
mds->mds_osc_exp = class_conn2export(&conn);
- rc = obd_register_observer(mds->mds_osc_obd, obd);
- if (rc) {
- CERROR("MDS cannot register as observer of LOV %s (%d)\n",
- lov_name, rc);
- GOTO(err_discon, rc);
- }
-
- /* Deny new client connections until we are sure we have some OSTs */
- obd->obd_no_conn = 1;
-
- mutex_down(&obd->obd_dev_sem);
- rc = mds_lov_read_objids(obd);
- if (rc) {
- CERROR("cannot read %s: rc = %d\n", "lov_objids", rc);
- GOTO(err_reg, rc);
- }
- mutex_up(&obd->obd_dev_sem);
-
/* I want to see a callback happen when the OBD moves to a
* "For General Use" state, and that's when we'll call
* set_nextid(). The class driver can help us here, because
*/
RETURN(rc);
-err_reg:
- mutex_up(&obd->obd_dev_sem);
- obd_register_observer(mds->mds_osc_obd, NULL);
-err_discon:
- obd_disconnect(mds->mds_osc_exp);
+err_exit:
mds->mds_osc_exp = NULL;
mds->mds_osc_obd = ERR_PTR(rc);
RETURN(rc);
RETURN(rc);
}
-/* Collect the preconditions we need to allow client connects */
-static void mds_allow_cli(struct obd_device *obd, unsigned int flag)
-{
- if (flag & CONFIG_LOG)
- obd->u.mds.mds_fl_cfglog = 1;
- if (flag & CONFIG_SYNC)
- obd->u.mds.mds_fl_synced = 1;
- if (obd->u.mds.mds_fl_cfglog /* bz11778: && obd->u.mds.mds_fl_synced */)
- /* Open for clients */
- obd->obd_no_conn = 0;
-}
-
struct mds_lov_sync_info {
struct obd_device *mlsi_obd; /* the lov device to sync */
struct obd_device *mlsi_watched; /* target osc */
* in mdd is removed, This hack should be removed.
*/
LASSERT(obd->obd_upcall.onu_upcall != NULL);
- rc = obd->obd_upcall.onu_upcall(NULL, NULL, 0,
+ rc = obd->obd_upcall.onu_upcall(obd, NULL, OBD_NOTIFY_ACTIVE,
obd->obd_upcall.onu_owner);
}
EXIT;
if (mlsi == NULL)
RETURN(-ENOMEM);
+ LASSERT(data);
mlsi->mlsi_obd = obd;
mlsi->mlsi_watched = watched;
mlsi->mlsi_index = *(__u32 *)data;
int rc = 0;
ENTRY;
+ CDEBUG(D_CONFIG, "notify %s ev=%d\n", watched->obd_name, ev);
+
switch (ev) {
/* We only handle these: */
case OBD_NOTIFY_ACTIVE:
+ /* lov want one or more _active_ targets for work */
+ /* activate event should be pass lov idx as argument */
case OBD_NOTIFY_SYNC:
case OBD_NOTIFY_SYNC_NONBLOCK:
+ /* sync event should be pass lov idx as argument */
break;
case OBD_NOTIFY_CONFIG:
- mds_allow_cli(obd, (unsigned long)data);
default:
RETURN(0);
}
- CDEBUG(D_CONFIG, "notify %s ev=%d\n", watched->obd_name, ev);
if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME) != 0) {
CERROR("unexpected notification of %s %s!\n",
watched->obd_type->typ_name, watched->obd_name);
/* We still have to fix the lov descriptor for ost's added
after the mdt in the config log. They didn't make it into
mds_lov_connect. */
- mutex_down(&obd->obd_dev_sem);
rc = mds_lov_update_desc(obd, *(__u32 *)data,
&watched->u.cli.cl_target_uuid);
- mutex_up(&obd->obd_dev_sem);
- if (rc == 0)
- mds_allow_cli(obd, CONFIG_SYNC);
RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff