442 	if (mmget_not_zero(work->identity->mm)) {  in io_wq_switch_mm()
443 		kthread_use_mm(work->identity->mm);  in io_wq_switch_mm()
444 		worker->mm = work->identity->mm;  in io_wq_switch_mm()
458 	if (work->identity->blkcg_css != worker->blkcg_css) {  in io_wq_switch_blkcg()
459 		kthread_associate_blkcg(work->identity->blkcg_css);  in io_wq_switch_blkcg()
460 		worker->blkcg_css = work->identity->blkcg_css;  in io_wq_switch_blkcg()
468 	const struct cred *old_creds = override_creds(work->identity->creds);  in io_wq_switch_creds()
470 	worker->cur_creds = work->identity->creds;  in io_wq_switch_creds()
481 	    current->files != work->identity->files) {  in io_impersonate_work()
483 		current->files = work->identity->files;  in io_impersonate_work()
484 		current->nsproxy = work->identity->nsproxy;  in io_impersonate_work()
486 		if (!work->identity->files) {  in io_impersonate_work()
491 	if ((work->flags & IO_WQ_WORK_FS) && current->fs != work->identity->fs)  in io_impersonate_work()
492 		current->fs = work->identity->fs;  in io_impersonate_work()
493 	if ((work->flags & IO_WQ_WORK_MM) && work->identity->mm != worker->mm)  in io_impersonate_work()
496 	    worker->cur_creds != work->identity->creds)  in io_impersonate_work()
499 		current->signal->rlim[RLIMIT_FSIZE].rlim_cur = work->identity->fsize;  in io_impersonate_work()
504 	current->loginuid = work->identity->loginuid;  in io_impersonate_work()
505 	current->sessionid = work->identity->sessionid;  in io_impersonate_work()