static void seq_server_proc_fini(struct lu_server_seq *seq);
/* Assigns client to sequence controller node. */
-int seq_server_set_cli(struct lu_server_seq *seq,
- struct lu_client_seq *cli,
- const struct lu_env *env)
+int seq_server_set_cli(const struct lu_env *env, struct lu_server_seq *seq,
+ struct lu_client_seq *cli)
{
int rc = 0;
ENTRY;
RETURN(rc);
}
+int seq_server_alloc_spec(struct lu_server_seq *seq,
+ struct lu_seq_range *spec,
+ const struct lu_env *env)
+{
+ struct lu_seq_range *space = &seq->lss_space;
+ int rc = -ENOSPC;
+ ENTRY;
+
+ /*
+ * In some cases (like recovery after a disaster)
+ * we may need to allocate sequences manually
+ * Notice some sequences can be lost if requested
+ * range doesn't start at the beginning of current
+ * free space. Also notice it's not possible now
+ * to allocate sequences out of natural order.
+ */
+ if (spec->lsr_start >= spec->lsr_end)
+ RETURN(-EINVAL);
+ if (spec->lsr_flags != LU_SEQ_RANGE_MDT &&
+ spec->lsr_flags != LU_SEQ_RANGE_OST)
+ RETURN(-EINVAL);
+
+ mutex_lock(&seq->lss_mutex);
+ if (spec->lsr_start >= space->lsr_start) {
+ space->lsr_start = spec->lsr_end;
+ rc = seq_store_update(env, seq, spec, 1 /* sync */);
+
+ LCONSOLE_INFO("%s: "DRANGE" sequences allocated: rc = %d \n",
+ seq->lss_name, PRANGE(spec), rc);
+ }
+ mutex_unlock(&seq->lss_mutex);
+
+ RETURN(rc);
+}
+
static int __seq_set_init(const struct lu_env *env,
struct lu_server_seq *seq)
{
* flaged as sync write op.
*/
static int range_alloc_set(const struct lu_env *env,
- struct lu_seq_range *out,
- struct lu_server_seq *seq)
+ struct lu_seq_range *out,
+ struct lu_server_seq *seq)
{
struct lu_seq_range *space = &seq->lss_space;
struct lu_seq_range *loset = &seq->lss_lowater_set;
/* Saving new range to allocation space. */
*space = seq->lss_cli->lcs_space;
LASSERT(range_is_sane(space));
+ if (seq->lss_cli->lcs_srv == NULL) {
+ struct lu_server_fld *fld;
+
+ /* Insert it to the local FLDB */
+ fld = seq->lss_site->ss_server_fld;
+ mutex_lock(&fld->lsf_lock);
+ rc = fld_insert_entry(env, fld, space);
+ mutex_unlock(&fld->lsf_lock);
+ }
}
rc = range_alloc_set(env, out, seq);
/* context key: seq_thread_key */
LU_CONTEXT_KEY_DEFINE(seq, LCT_MD_THREAD | LCT_DT_THREAD);
+extern const struct file_operations seq_fld_proc_seq_fops;
+
static int seq_server_proc_init(struct lu_server_seq *seq)
{
#ifdef LPROCFS
+ int rc;
+ ENTRY;
- int rc;
- ENTRY;
+ seq->lss_proc_dir = lprocfs_seq_register(seq->lss_name,
+ seq_type_proc_dir,
+ NULL, NULL);
+ if (IS_ERR(seq->lss_proc_dir)) {
+ rc = PTR_ERR(seq->lss_proc_dir);
+ RETURN(rc);
+ }
- seq->lss_proc_dir = lprocfs_register(seq->lss_name,
- seq_type_proc_dir,
- NULL, NULL);
- if (IS_ERR(seq->lss_proc_dir)) {
- rc = PTR_ERR(seq->lss_proc_dir);
- RETURN(rc);
- }
+ rc = lprocfs_seq_add_vars(seq->lss_proc_dir,
+ seq_server_proc_list, seq);
+ if (rc) {
+ CERROR("%s: Can't init sequence manager "
+ "proc, rc %d\n", seq->lss_name, rc);
+ GOTO(out_cleanup, rc);
+ }
- rc = lprocfs_add_vars(seq->lss_proc_dir,
- seq_server_proc_list, seq);
- if (rc) {
- CERROR("%s: Can't init sequence manager "
- "proc, rc %d\n", seq->lss_name, rc);
- GOTO(out_cleanup, rc);
- }
+ if (seq->lss_type == LUSTRE_SEQ_CONTROLLER) {
+ rc = lprocfs_seq_create(seq->lss_proc_dir, "fldb", 0644,
+ &seq_fld_proc_seq_fops, seq);
+ if (rc) {
+ CERROR("%s: Can't create fldb for sequence manager "
+ "proc: rc = %d\n", seq->lss_name, rc);
+ GOTO(out_cleanup, rc);
+ }
+ }
- RETURN(0);
+ RETURN(0);
out_cleanup:
- seq_server_proc_fini(seq);
- return rc;
+ seq_server_proc_fini(seq);
+ return rc;
#else /* LPROCFS */
return 0;
#endif
#endif /* LPROCFS */
}
-int seq_server_init(struct lu_server_seq *seq,
+int seq_server_init(const struct lu_env *env,
+ struct lu_server_seq *seq,
struct dt_device *dev,
const char *prefix,
enum lu_mgr_type type,
- struct seq_server_site *ss,
- const struct lu_env *env)
+ struct seq_server_site *ss)
{
- int rc, is_srv = (type == LUSTRE_SEQ_SERVER);
- ENTRY;
+ int rc, is_srv = (type == LUSTRE_SEQ_SERVER);
+ ENTRY;
- LASSERT(dev != NULL);
- LASSERT(prefix != NULL);
+ LASSERT(dev != NULL);
+ LASSERT(prefix != NULL);
LASSERT(ss != NULL);
LASSERT(ss->ss_lu != NULL);
+ /* A compile-time check for FIDs that used to be in lustre_idl.h
+ * but is moved here to remove CLASSERT/LASSERT in that header.
+ * Check all lu_fid fields are converted in fid_cpu_to_le() and friends
+ * and that there is no padding added by compiler to the struct. */
+ {
+ struct lu_fid tst;
+
+ CLASSERT(sizeof(tst) == sizeof(tst.f_seq) +
+ sizeof(tst.f_oid) + sizeof(tst.f_ver));
+ }
+
seq->lss_cli = NULL;
seq->lss_type = type;
seq->lss_site = ss;
LUSTRE_SEQ_ZERO_RANGE:
LUSTRE_SEQ_SPACE_RANGE;
- LASSERT(ss != NULL);
seq->lss_space.lsr_index = ss->ss_node_id;
LCONSOLE_INFO("%s: No data found "
"on store. Initialize space\n",
git://git.whamcloud.com / fs / lustre-release.git / blobdiff