boolean_t rel_gtmsource_srv_latch(sm_global_latch_ptr_t latch)
{
sgmnt_addrs *repl_csa;
repl_csa = &FILE_INFO(jnlpool.jnlpool_dummy_reg)->s_addrs;
DEBUG_ONLY(locknl = repl_csa->nl);
LOCK_HIST("RLSE", latch, process_id, 0);
DEBUG_ONLY(locknl = NULL);
assert(process_id == latch->u.parts.latch_pid);
RELEASE_SWAPLOCK(latch);
return TRUE;
}
void jnl_fsync(gd_region *reg, uint4 fsync_addr)
{
jnl_private_control *jpc;
jnl_buffer_ptr_t jb;
uint4 lcnt, saved_dsk_addr, saved_status;
sgmnt_addrs *csa;
sgmnt_data_ptr_t csd;
int4 lck_state;
int fsync_ret, save_errno;
error_def(ERR_JNLFSYNCERR);
error_def(ERR_FSYNCTIMOUT);
error_def(ERR_TEXT);
error_def(ERR_JNLFRCDTERM);
error_def(ERR_JNLFSYNCLSTCK);
csa = &FILE_INFO(reg)->s_addrs;
jpc = csa->jnl;
jb = jpc->jnl_buff;
if ((NOJNL != jpc->channel) && !JNL_FILE_SWITCHED(jpc))
{
csd = csa->hdr;
for (lcnt = 1; fsync_addr > jb->fsync_dskaddr && !JNL_FILE_SWITCHED(jpc); lcnt++)
{
if (MAX_FSYNC_WAIT_CNT / 2 == lcnt) /* half way into max.patience*/
{
saved_status = jpc->status;
jpc->status = SS_NORMAL;
jnl_send_oper(jpc, ERR_JNLFSYNCLSTCK);
jpc->status = saved_status ;
}
if (MAX_FSYNC_WAIT_CNT == lcnt) /* tried a long */
{
saved_status = jpc->status;
jpc->status = SS_NORMAL;
jnl_send_oper(jpc, ERR_JNLFSYNCLSTCK);
jpc->status = saved_status ;
send_msg(VARLSTCNT(4) ERR_FSYNCTIMOUT, 2, JNL_LEN_STR(csd));
GTMASSERT;
}
BG_TRACE_PRO_ANY(csa, n_jnl_fsync_tries);
if (GET_SWAPLOCK(&jb->fsync_in_prog_latch))
break;
wcs_sleep(lcnt);
performCASLatchCheck(&jb->fsync_in_prog_latch, lcnt);
}
if (fsync_addr > jb->fsync_dskaddr && !JNL_FILE_SWITCHED(jpc))
{
assert(process_id == jb->fsync_in_prog_latch.u.parts.latch_pid); /* assert we have the lock */
saved_dsk_addr = jb->dskaddr;
if (jpc->sync_io)
{
/* We need to maintain the fsync control fields irrespective of the type of IO, because we might
* switch between these at any time.
*/
jb->fsync_dskaddr = saved_dsk_addr;
} else
{
GTM_FSYNC(jpc->channel, fsync_ret);
if (-1 == fsync_ret)
{
save_errno = errno;
assert(FALSE);
send_msg(VARLSTCNT(9) ERR_JNLFSYNCERR, 2, JNL_LEN_STR(csd),
ERR_TEXT, 2, RTS_ERROR_TEXT("Error with fsync"), save_errno);
rts_error(VARLSTCNT(9) ERR_JNLFSYNCERR, 2, JNL_LEN_STR(csd),
ERR_TEXT, 2, RTS_ERROR_TEXT("Error with fsync"), save_errno);
} else
{
jb->fsync_dskaddr = saved_dsk_addr;
BG_TRACE_PRO_ANY(csa, n_jnl_fsyncs);
}
}
}
if (process_id == jb->fsync_in_prog_latch.u.parts.latch_pid)
RELEASE_SWAPLOCK(&jb->fsync_in_prog_latch);
}
return;
}
