* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
LUSTRE_IMP_EVICTED = 10,
};
+struct ptlrpc_at_array {
+ struct list_head *paa_reqs_array; /* array to hold requests */
+ __u32 paa_size; /* the size of array */
+ __u32 paa_count; /* the total count of reqs */
+ time_t paa_deadline; /* the earliest deadline of reqs */
+ __u32 *paa_reqs_count; /* the count of reqs in each entry */
+};
+
static inline char * ptlrpc_import_state_name(enum lustre_imp_state state)
{
static char* import_state_names[] = {
struct adaptive_timeout iat_service_estimate[IMP_AT_MAX_PORTALS];
};
+/* state history */
+#define IMP_STATE_HIST_LEN 16
+struct import_state_hist {
+ enum lustre_imp_state ish_state;
+ time_t ish_time;
+};
+
struct obd_import {
struct portals_handle imp_handle;
atomic_t imp_refcount;
cfs_waitq_t imp_recovery_waitq;
atomic_t imp_inflight;
+ atomic_t imp_unregistering;
atomic_t imp_replay_inflight;
- atomic_t imp_inval_count;
+ atomic_t imp_inval_count; /* in-progress invalidations */
+ atomic_t imp_timeouts;
enum lustre_imp_state imp_state;
+ struct import_state_hist imp_state_hist[IMP_STATE_HIST_LEN];
+ int imp_state_hist_idx;
int imp_generation;
__u32 imp_conn_cnt;
int imp_last_generation_checked;
imp_replayable:1, /* try to recover the import */
imp_dlm_fake:1, /* don't run recovery (timeout instead) */
imp_server_timeout:1, /* use 1/2 timeout on MDS' OSCs */
- imp_initial_recov:1, /* retry the initial connection */
+ imp_initial_recov:1, /* retry the initial connection */
imp_initial_recov_bk:1, /* turn off init_recov after trying all failover nids */
+ imp_delayed_recovery:1, /* VBR: imp in delayed recovery */
+ imp_no_lock_replay:1, /* VBR: if gap was found then no lock replays */
+ imp_vbr_failed:1, /* recovery by versions was failed */
imp_force_verify:1, /* force an immidiate ping */
imp_pingable:1, /* pingable */
imp_resend_replay:1, /* resend for replay */
void *event_arg);
/* import.c */
+static inline unsigned int at_est2timeout(unsigned int val)
+{
+ /* add an arbitrary minimum: 125% +5 sec */
+ return (val + (val >> 2) + 5);
+}
+
+static inline unsigned int at_timeout2est(unsigned int val)
+{
+ /* restore estimate value from timeout: e=4/5(t-5) */
+ LASSERT(val);
+ return (max((val << 2) / 5, 5U) - 4);
+}
+
static inline void at_init(struct adaptive_timeout *at, int val, int flags) {
memset(at, 0, sizeof(*at));
at->at_current = val;