#include "ofd_internal.h"
#include <obd_cksum.h>
+static int ofd_export_stats_init(struct ofd_device *ofd,
+ struct obd_export *exp, void *client_nid)
+{
+ struct obd_device *obd = ofd_obd(ofd);
+ struct nid_stat *stats;
+ int num_stats, i;
+ int rc, newnid = 0;
+
+ ENTRY;
+
+ if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid))
+ /* Self-export gets no proc entry */
+ RETURN(0);
+
+ rc = lprocfs_exp_setup(exp, client_nid, &newnid);
+ if (rc) {
+ /* Mask error for already created
+ * /proc entries */
+ if (rc == -EALREADY)
+ rc = 0;
+ RETURN(rc);
+ }
+
+ if (newnid == 0)
+ RETURN(0);
+
+ stats = exp->exp_nid_stats;
+ LASSERT(stats != NULL);
+
+ OBD_ALLOC(stats->nid_brw_stats, sizeof(struct brw_stats));
+ if (stats->nid_brw_stats == NULL)
+ GOTO(clean, rc = -ENOMEM);
+
+ for (i = 0; i < BRW_LAST; i++)
+ cfs_spin_lock_init(&stats->nid_brw_stats->hist[i].oh_lock);
+
+ rc = lprocfs_seq_create(stats->nid_proc, "brw_stats", 0644,
+ &ofd_per_nid_stats_fops, stats);
+ if (rc)
+ CWARN("Error adding the brw_stats file\n");
+
+ num_stats = (sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
+ LPROC_OFD_LAST - 1;
+
+ stats->nid_stats = lprocfs_alloc_stats(num_stats,
+ LPROCFS_STATS_FLAG_NOPERCPU);
+ if (stats->nid_stats == NULL)
+ return -ENOMEM;
+
+ lprocfs_init_ops_stats(LPROC_OFD_LAST, stats->nid_stats);
+ lprocfs_counter_init(stats->nid_stats, LPROC_OFD_READ_BYTES,
+ LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes");
+ lprocfs_counter_init(stats->nid_stats, LPROC_OFD_WRITE_BYTES,
+ LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes");
+
+ rc = lprocfs_register_stats(stats->nid_proc, "stats",
+ stats->nid_stats);
+ if (rc)
+ GOTO(clean, rc);
+
+ rc = lprocfs_nid_ldlm_stats_init(stats);
+ if (rc) {
+ lprocfs_free_stats(&stats->nid_stats);
+ GOTO(clean, rc);
+ }
+
+ RETURN(0);
+clean:
+ return rc;
+}
+
static int ofd_parse_connect_data(const struct lu_env *env,
struct obd_export *exp,
struct obd_connect_data *data)
{
- struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct filter_export_data *fed = &exp->exp_filter_data;
if (!data)
RETURN(0);
data->ocd_connect_flags, data->ocd_version,
data->ocd_grant, data->ocd_index);
+ if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) {
+ CWARN("!!! This export (nid %s) used object group %d "
+ "earlier; now it's trying to use group %d! This could "
+ "be a bug in the MDS. Please report to "
+ "http://bugs.whamcloud.com/\n",
+ obd_export_nid2str(exp), fed->fed_group,
+ data->ocd_group);
+ RETURN(-EPROTO);
+ }
+ fed->fed_group = data->ocd_group;
+
data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
exp->exp_connect_flags = data->ocd_connect_flags;
data->ocd_version = LUSTRE_VERSION_CODE;
else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN)
RETURN(-EPROTO);
+ if (ofd_grant_param_supp(exp)) {
+ exp->exp_filter_data.fed_pagesize = data->ocd_blocksize;
+ /* ocd_{blocksize,inodespace} are log2 values */
+ data->ocd_blocksize = ofd->ofd_blockbits;
+ data->ocd_inodespace = ofd->ofd_dt_conf.ddp_inodespace;
+ /* ocd_grant_extent is in 1K blocks */
+ data->ocd_grant_extent = ofd->ofd_dt_conf.ddp_grant_frag >> 10;
+ }
+
+ if (exp->exp_connect_flags & OBD_CONNECT_GRANT)
+ data->ocd_grant = ofd_grant_connect(env, exp, data->ocd_grant);
+
if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
int index = lsd->lsd_ost_index;
/* The client set in ocd_cksum_types the checksum types it
* supports. We have to mask off the algorithms that we don't
* support */
- data->ocd_cksum_types &= cksum_types_supported();
+ data->ocd_cksum_types &= cksum_types_supported_server();
if (unlikely(data->ocd_cksum_types == 0)) {
CERROR("%s: Connect with checksum support but no "
struct obd_device *obd, struct obd_uuid *cluuid,
struct obd_connect_data *data, void *localdata)
{
- int rc;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ int rc;
ENTRY;
ofd_info_init(env, exp);
rc = ofd_parse_connect_data(env, exp, data);
+ if (rc == 0)
+ ofd_export_stats_init(ofd, exp, localdata);
RETURN(rc);
}
if (rc)
GOTO(out, rc);
- ofd_export_stats_init(ofd, exp, localdata);
group = data->ocd_group;
if (obd->obd_replayable) {
struct tg_export_data *ted = &exp->exp_target_data;
rc = lut_client_new(env, exp);
if (rc != 0)
GOTO(out, rc);
+ ofd_export_stats_init(ofd, exp, localdata);
}
if (group == 0)
GOTO(out, rc = 0);
static int ofd_obd_disconnect(struct obd_export *exp)
{
- struct lu_env env;
- int rc;
+ struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+ struct lu_env env;
+ int rc;
ENTRY;
LASSERT(exp);
class_export_get(exp);
+ if (!(exp->exp_flags & OBD_OPT_FORCE))
+ ofd_grant_sanity_check(ofd_obd(ofd), __FUNCTION__);
+
rc = server_disconnect_export(exp);
+ ofd_grant_discard(exp);
+
rc = lu_env_init(&env, LCT_DT_THREAD);
if (rc)
RETURN(rc);
static int ofd_destroy_export(struct obd_export *exp)
{
+ struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+
if (exp->exp_filter_data.fed_pending)
CERROR("%s: cli %s/%p has %lu pending on destroyed export"
"\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
ldlm_destroy_export(exp);
lut_client_free(exp);
+ ofd_fmd_cleanup(exp);
+
+ /*
+ * discard grants once we're sure no more
+ * interaction with the client is possible
+ */
+ ofd_grant_discard(exp);
+ ofd_fmd_cleanup(exp);
+
+ if (exp->exp_connect_flags & OBD_CONNECT_GRANT_SHRINK) {
+ if (ofd->ofd_tot_granted_clients > 0)
+ ofd->ofd_tot_granted_clients --;
+ }
+
+ if (!(exp->exp_flags & OBD_OPT_FORCE))
+ ofd_grant_sanity_check(exp->exp_obd, __FUNCTION__);
+
LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
return 0;
}
RETURN(rc);
}
+static int ofd_set_mds_conn(struct obd_export *exp, void *val)
+{
+ int rc = 0;
+
+ ENTRY;
+
+ LCONSOLE_WARN("%s: received MDS connection from %s\n",
+ exp->exp_obd->obd_name, obd_export_nid2str(exp));
+ RETURN(rc);
+}
+
+static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 vallen, void *val,
+ struct ptlrpc_request_set *set)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ if (exp->exp_obd == NULL) {
+ CDEBUG(D_IOCTL, "invalid export %p\n", exp);
+ RETURN(-EINVAL);
+ }
+
+ if (KEY_IS(KEY_CAPA_KEY)) {
+ rc = ofd_update_capa_key(ofd, val);
+ if (rc)
+ CERROR("ofd update capability key failed: %d\n", rc);
+ } else if (KEY_IS(KEY_MDS_CONN)) {
+ rc = ofd_set_mds_conn(exp, val);
+ } else if (KEY_IS(KEY_GRANT_SHRINK)) {
+ struct ost_body *body = val;
+
+ /** handle grant shrink, similar to a read request */
+ ofd_grant_prepare_read(env, exp, &body->oa);
+ } else {
+ CERROR("%s: Unsupported key %s\n",
+ exp->exp_obd->obd_name, (char*)key);
+ rc = -EOPNOTSUPP;
+ }
+
+ RETURN(rc);
+}
+
+static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ if (exp->exp_obd == NULL) {
+ CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
+ RETURN(-EINVAL);
+ }
+
+ if (KEY_IS(KEY_BLOCKSIZE)) {
+ __u32 *blocksize = val;
+ if (blocksize) {
+ if (*vallen < sizeof(*blocksize))
+ RETURN(-EOVERFLOW);
+ *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift;
+ }
+ *vallen = sizeof(*blocksize);
+ } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) {
+ __u32 *blocksize_bits = val;
+ if (blocksize_bits) {
+ if (*vallen < sizeof(*blocksize_bits))
+ RETURN(-EOVERFLOW);
+ *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift;
+ }
+ *vallen = sizeof(*blocksize_bits);
+ } else if (KEY_IS(KEY_LAST_ID)) {
+ obd_id *last_id = val;
+ if (last_id) {
+ if (*vallen < sizeof(*last_id))
+ RETURN(-EOVERFLOW);
+ *last_id = ofd_last_id(ofd,
+ exp->exp_filter_data.fed_group);
+ }
+ *vallen = sizeof(*last_id);
+ } else {
+ CERROR("Not supported key %s\n", (char*)key);
+ rc = -EOPNOTSUPP;
+ }
+
+ RETURN(rc);
+}
+
+/** helper function for statfs, also used by grant code */
+int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
+ struct obd_statfs *osfs, __u64 max_age, int *from_cache)
+{
+ int rc;
+
+ cfs_spin_lock(&ofd->ofd_osfs_lock);
+ if (cfs_time_before_64(ofd->ofd_osfs_age, max_age) || max_age == 0) {
+ obd_size unstable;
+
+ /* statfs data are too old, get up-to-date one.
+ * we must be cautious here since multiple threads might be
+ * willing to update statfs data concurrently and we must
+ * grant that cached statfs data are always consistent */
+
+ if (ofd->ofd_statfs_inflight == 0)
+ /* clear inflight counter if no users, although it would
+ * take a while to overflow this 64-bit counter ... */
+ ofd->ofd_osfs_inflight = 0;
+ /* notify ofd_grant_commit() that we want to track writes
+ * completed as of now */
+ ofd->ofd_statfs_inflight++;
+ /* record value of inflight counter before running statfs to
+ * compute the diff once statfs is completed */
+ unstable = ofd->ofd_osfs_inflight;
+ cfs_spin_unlock(&ofd->ofd_osfs_lock);
+
+ /* statfs can sleep ... hopefully not for too long since we can
+ * call it fairly often as space fills up */
+ rc = dt_statfs(env, ofd->ofd_osd, osfs);
+ if (unlikely(rc))
+ return rc;
+
+ cfs_spin_lock(&ofd->ofd_grant_lock);
+ cfs_spin_lock(&ofd->ofd_osfs_lock);
+ /* calculate how much space was written while we released the
+ * ofd_osfs_lock */
+ unstable = ofd->ofd_osfs_inflight - unstable;
+ ofd->ofd_osfs_unstable = 0;
+ if (unstable) {
+ /* some writes completed while we were running statfs
+ * w/o the ofd_osfs_lock. Those ones got added to
+ * the cached statfs data that we are about to crunch.
+ * Take them into account in the new statfs data */
+ osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
+ unstable >> ofd->ofd_blockbits);
+ /* However, we don't really know if those writes got
+ * accounted in the statfs call, so tell
+ * ofd_grant_space_left() there is some uncertainty
+ * on the accounting of those writes.
+ * The purpose is to prevent spurious error messages in
+ * ofd_grant_space_left() since those writes might be
+ * accounted twice. */
+ ofd->ofd_osfs_unstable += unstable;
+ }
+ /* similarly, there is some uncertainty on write requests
+ * between prepare & commit */
+ ofd->ofd_osfs_unstable += ofd->ofd_tot_pending;
+ cfs_spin_unlock(&ofd->ofd_grant_lock);
+
+ /* finally udpate cached statfs data */
+ ofd->ofd_osfs = *osfs;
+ ofd->ofd_osfs_age = cfs_time_current_64();
+
+ ofd->ofd_statfs_inflight--; /* stop tracking */
+ if (ofd->ofd_statfs_inflight == 0)
+ ofd->ofd_osfs_inflight = 0;
+ cfs_spin_unlock(&ofd->ofd_osfs_lock);
+
+ if (from_cache)
+ *from_cache = 0;
+ } else {
+ /* use cached statfs data */
+ *osfs = ofd->ofd_osfs;
+ cfs_spin_unlock(&ofd->ofd_osfs_lock);
+ if (from_cache)
+ *from_cache = 1;
+ }
+ return 0;
+}
+
+static int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
+ struct obd_statfs *osfs, __u64 max_age, __u32 flags)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+ int rc;
+
+ ENTRY;
+
+ rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
+ if (unlikely(rc))
+ GOTO(out, rc);
+
+ /* at least try to account for cached pages. its still racy and
+ * might be under-reporting if clients haven't announced their
+ * caches with brw recently */
+
+ CDEBUG(D_SUPER | D_CACHE, "blocks cached "LPU64" granted "LPU64
+ " pending "LPU64" free "LPU64" avail "LPU64"\n",
+ ofd->ofd_tot_dirty, ofd->ofd_tot_granted, ofd->ofd_tot_pending,
+ osfs->os_bfree << ofd->ofd_blockbits,
+ osfs->os_bavail << ofd->ofd_blockbits);
+
+ osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
+ ((ofd->ofd_tot_dirty + ofd->ofd_tot_pending +
+ osfs->os_bsize - 1) >> ofd->ofd_blockbits));
+
+ /* The QoS code on the MDS does not care about space reserved for
+ * precreate, so take it out. */
+ if (exp->exp_connect_flags & OBD_CONNECT_MDS) {
+ struct filter_export_data *fed;
+
+ fed = &obd->obd_self_export->exp_filter_data;
+ osfs->os_bavail -= min_t(obd_size, osfs->os_bavail,
+ fed->fed_grant >> ofd->ofd_blockbits);
+ }
+
+ ofd_grant_sanity_check(obd, __FUNCTION__);
+ CDEBUG(D_CACHE, LPU64" blocks: "LPU64" free, "LPU64" avail; "
+ LPU64" objects: "LPU64" free; state %x\n",
+ osfs->os_blocks, osfs->os_bfree, osfs->os_bavail,
+ osfs->os_files, osfs->os_ffree, osfs->os_state);
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_bfree = osfs->os_bavail = 2;
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_ffree = 0;
+
+ /* OS_STATE_READONLY can be set by OSD already */
+ if (ofd->ofd_raid_degraded)
+ osfs->os_state |= OS_STATE_DEGRADED;
+
+ if (obd->obd_self_export != exp && ofd_grant_compat(exp, ofd)) {
+ /* clients which don't support OBD_CONNECT_GRANT_PARAM
+ * should not see a block size > page size, otherwise
+ * cl_lost_grant goes mad. Therefore, we emulate a 4KB (=2^12)
+ * block size which is the biggest block size known to work
+ * with all client's page size. */
+ osfs->os_blocks <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
+ osfs->os_bfree <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
+ osfs->os_bavail <<= ofd->ofd_blockbits - COMPAT_BSIZE_SHIFT;
+ osfs->os_bsize = 1 << COMPAT_BSIZE_SHIFT;
+ }
+
+ EXIT;
+out:
+ return rc;
+}
+
+static int ofd_sync(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, obd_size start, obd_size end,
+ struct ptlrpc_request_set *set)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ /* if no objid is specified, it means "sync whole filesystem" */
+ if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) {
+ rc = dt_sync(env, ofd->ofd_osd);
+ GOTO(out, rc);
+ }
+
+ EXIT;
+out:
+ return rc;
+}
+
+int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
+ void *karg, void *uarg)
+{
+ struct lu_env env;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct obd_device *obd = ofd_obd(ofd);
+ int rc;
+
+ ENTRY;
+
+ CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
+ rc = lu_env_init(&env, LCT_LOCAL);
+ if (rc)
+ RETURN(rc);
+
+ switch (cmd) {
+ case OBD_IOC_ABORT_RECOVERY:
+ CERROR("aborting recovery for device %s\n", obd->obd_name);
+ target_stop_recovery_thread(obd);
+ break;
+ case OBD_IOC_SYNC:
+ CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
+ rc = dt_sync(&env, ofd->ofd_osd);
+ break;
+ case OBD_IOC_SET_READONLY:
+ rc = dt_sync(&env, ofd->ofd_osd);
+ if (rc == 0)
+ rc = dt_ro(&env, ofd->ofd_osd);
+ break;
+ default:
+ CERROR("Not supported cmd = %d for device %s\n",
+ cmd, obd->obd_name);
+ rc = -ENOTTY;
+ }
+
+ lu_env_fini(&env);
+ RETURN(rc);
+}
+
+static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+{
+ int rc = 0;
+
+ ENTRY;
+
+ switch(stage) {
+ case OBD_CLEANUP_EARLY:
+ break;
+ case OBD_CLEANUP_EXPORTS:
+ target_cleanup_recovery(obd);
+ break;
+ }
+ RETURN(rc);
+}
+
+static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
+{
+ return 0;
+}
+
+static int ofd_health_check(const struct lu_env *env, struct obd_device *obd)
+{
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct ofd_thread_info *info;
+#ifdef USE_HEALTH_CHECK_WRITE
+ struct thandle *th;
+#endif
+ int rc = 0;
+
+ info = ofd_info_init(env, NULL);
+ rc = dt_statfs(env, ofd->ofd_osd, &info->fti_u.osfs);
+ if (unlikely(rc))
+ GOTO(out, rc);
+
+ if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
+ GOTO(out, rc = -EROFS);
+
+#ifdef USE_HEALTH_CHECK_WRITE
+ OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
+ if (info->fti_buf.lb_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ info->fti_buf.lb_len = CFS_PAGE_SIZE;
+ info->fti_off = 0;
+
+ th = dt_trans_create(env, ofd->ofd_osd);
+ if (IS_ERR(th))
+ GOTO(out, rc = PTR_ERR(th));
+
+ rc = dt_declare_record_write(env, ofd->ofd_health_check_file,
+ info->fti_buf.lb_len, info->fti_off, th);
+ if (rc == 0) {
+ th->th_sync = 1; /* sync IO is needed */
+ rc = dt_trans_start_local(env, ofd->ofd_osd, th);
+ if (rc == 0)
+ rc = dt_record_write(env, ofd->ofd_health_check_file,
+ &info->fti_buf, &info->fti_off,
+ th);
+ }
+ dt_trans_stop(env, ofd->ofd_osd, th);
+
+ OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
+
+ CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
+#endif
+out:
+ return !!rc;
+}
+
static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused,
enum obd_notify_event ev, void *data)
{
.o_connect = ofd_obd_connect,
.o_reconnect = ofd_obd_reconnect,
.o_disconnect = ofd_obd_disconnect,
+ .o_set_info_async = ofd_set_info_async,
+ .o_get_info = ofd_get_info,
+ .o_statfs = ofd_statfs,
.o_init_export = ofd_init_export,
.o_destroy_export = ofd_destroy_export,
.o_postrecov = ofd_obd_postrecov,
+ .o_sync = ofd_sync,
+ .o_iocontrol = ofd_iocontrol,
+ .o_precleanup = ofd_precleanup,
+ .o_ping = ofd_ping,
+ .o_health_check = ofd_health_check,
.o_notify = ofd_obd_notify,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff