static int cr_export_now_file(struct epm_action *action, ghost_t *ghost,
struct task_struct *task,
union export_args *args)
{
int r, supported;
supported = can_checkpoint_file(args->file_args.file);
r = ghost_write(ghost, &supported, sizeof(supported));
if (r)
goto error;
if (supported)
r = regular_file_export(action, ghost, task,
args->file_args.index,
args->file_args.file);
error:
if (r) {
char *buffer, *filename;
filename = alloc_filename(args->file_args.file, &buffer);
if (!IS_ERR(filename)) {
ckpt_err(action, r,
"Fail to save information needed to reopen "
"file %s as fd %d of process %d (%s)",
filename, args->file_args.index,
task_pid_knr(task), task->comm);
free_filename(buffer);
} else {
ckpt_err(action, r,
"Fail to save information needed to reopen "
"fd %d of process %d (%s)",
args->file_args.index,
task_pid_knr(task), task->comm);
}
}
return r;
}
static int cr_export_now_file(struct epm_action *action, ghost_t *ghost,
struct task_struct *task,
union export_args *args)
{
int r, supported;
supported = can_checkpoint_file(args->file_args.file);
r = ghost_write(ghost, &supported, sizeof(supported));
if (r) {
epm_error_saving_file(action, r, task,
args->file_args.file,
args->file_args.index);
goto error;
}
if (supported)
r = regular_file_export(action, ghost, task,
args->file_args.index,
args->file_args.file);
error:
return r;
}