static void osc_io_fsync_end(const struct lu_env *env,
const struct cl_io_slice *slice)
{
struct cl_fsync_io *fio = &slice->cis_io->u.ci_fsync;
struct cl_object *obj = slice->cis_obj;
pgoff_t start = cl_index(obj, fio->fi_start);
pgoff_t end = cl_index(obj, fio->fi_end);
int result = 0;
if (fio->fi_mode == CL_FSYNC_LOCAL) {
result = osc_cache_wait_range(env, cl2osc(obj), start, end);
} else if (fio->fi_mode == CL_FSYNC_ALL) {
struct osc_io *oio = cl2osc_io(env, slice);
struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
wait_for_completion(&cbargs->opc_sync);
if (result == 0)
result = cbargs->opc_rc;
}
slice->cis_io->ci_result = result;
}
static int osc_io_fsync_start(const struct lu_env *env,
const struct cl_io_slice *slice)
{
struct cl_io *io = slice->cis_io;
struct cl_fsync_io *fio = &io->u.ci_fsync;
struct cl_object *obj = slice->cis_obj;
struct osc_object *osc = cl2osc(obj);
pgoff_t start = cl_index(obj, fio->fi_start);
pgoff_t end = cl_index(obj, fio->fi_end);
int result = 0;
ENTRY;
if (fio->fi_end == OBD_OBJECT_EOF)
end = CL_PAGE_EOF;
result = osc_cache_writeback_range(env, osc, start, end, 0,
fio->fi_mode == CL_FSYNC_DISCARD);
if (result > 0) {
fio->fi_nr_written += result;
result = 0;
}
if (fio->fi_mode == CL_FSYNC_ALL) {
int rc;
/* we have to wait for writeback to finish before we can
* send OST_SYNC RPC. This is bad because it causes extents
* to be written osc by osc. However, we usually start
* writeback before CL_FSYNC_ALL so this won't have any real
* problem. */
rc = osc_cache_wait_range(env, osc, start, end);
if (result == 0)
result = rc;
rc = osc_fsync_ost(env, osc, fio);
if (result == 0)
result = rc;
}
RETURN(result);
}
