3441 static int ext4_run_li_request(struct ext4_li_request *elr)  in ext4_run_li_request()  argument
3444 	struct super_block *sb = elr->lr_super;  in ext4_run_li_request()
3446 	ext4_group_t group = elr->lr_next_group;  in ext4_run_li_request()
3451 	if (elr->lr_mode == EXT4_LI_MODE_PREFETCH_BBITMAP) {  in ext4_run_li_request()
3452 		elr->lr_next_group = ext4_mb_prefetch(sb, group,  in ext4_run_li_request()
3455 			ext4_mb_prefetch_fini(sb, elr->lr_next_group,  in ext4_run_li_request()
3457 		trace_ext4_prefetch_bitmaps(sb, group, elr->lr_next_group,  in ext4_run_li_request()
3459 		if (group >= elr->lr_next_group) {  in ext4_run_li_request()
3461 			if (elr->lr_first_not_zeroed != ngroups &&  in ext4_run_li_request()
3463 				elr->lr_next_group = elr->lr_first_not_zeroed;  in ext4_run_li_request()
3464 				elr->lr_mode = EXT4_LI_MODE_ITABLE;  in ext4_run_li_request()
3488 					    elr->lr_timeout ? 0 : 1);  in ext4_run_li_request()
3490 		if (elr->lr_timeout == 0) {  in ext4_run_li_request()
3491 			elr->lr_timeout = nsecs_to_jiffies((ktime_get_real_ns() - start_time) *  in ext4_run_li_request()
3492 				EXT4_SB(elr->lr_super)->s_li_wait_mult);  in ext4_run_li_request()
3494 		elr->lr_next_sched = jiffies + elr->lr_timeout;  in ext4_run_li_request()
3495 		elr->lr_next_group = group + 1;  in ext4_run_li_request()
3504 static void ext4_remove_li_request(struct ext4_li_request *elr)  in ext4_remove_li_request()  argument
3506 	if (!elr)  in ext4_remove_li_request()
3509 	list_del(&elr->lr_request);  in ext4_remove_li_request()
3510 	EXT4_SB(elr->lr_super)->s_li_request = NULL;  in ext4_remove_li_request()
3511 	kfree(elr);  in ext4_remove_li_request()
3543 	struct ext4_li_request *elr;  in ext4_lazyinit_thread()  local
3561 			elr = list_entry(pos, struct ext4_li_request,  in ext4_lazyinit_thread()
3564 			if (time_before(jiffies, elr->lr_next_sched)) {  in ext4_lazyinit_thread()
3565 				if (time_before(elr->lr_next_sched, next_wakeup))  in ext4_lazyinit_thread()
3566 					next_wakeup = elr->lr_next_sched;  in ext4_lazyinit_thread()
3569 			if (down_read_trylock(&elr->lr_super->s_umount)) {  in ext4_lazyinit_thread()
3570 				if (sb_start_write_trylock(elr->lr_super)) {  in ext4_lazyinit_thread()
3578 					err = ext4_run_li_request(elr);  in ext4_lazyinit_thread()
3579 					sb_end_write(elr->lr_super);  in ext4_lazyinit_thread()
3583 				up_read((&elr->lr_super->s_umount));  in ext4_lazyinit_thread()
3587 				ext4_remove_li_request(elr);  in ext4_lazyinit_thread()
3591 				elr->lr_next_sched = jiffies +  in ext4_lazyinit_thread()
3595 			if (time_before(elr->lr_next_sched, next_wakeup))  in ext4_lazyinit_thread()
3596 				next_wakeup = elr->lr_next_sched;  in ext4_lazyinit_thread()
3644 	struct ext4_li_request *elr;  in ext4_clear_request_list()  local
3648 		elr = list_entry(pos, struct ext4_li_request,  in ext4_clear_request_list()
3650 		ext4_remove_li_request(elr);  in ext4_clear_request_list()
3720 	struct ext4_li_request *elr;  in ext4_li_request_new()  local
3722 	elr = kzalloc(sizeof(*elr), GFP_KERNEL);  in ext4_li_request_new()
3723 	if (!elr)  in ext4_li_request_new()
3726 	elr->lr_super = sb;  in ext4_li_request_new()
3727 	elr->lr_first_not_zeroed = start;  in ext4_li_request_new()
3729 		elr->lr_mode = EXT4_LI_MODE_PREFETCH_BBITMAP;  in ext4_li_request_new()
3731 		elr->lr_mode = EXT4_LI_MODE_ITABLE;  in ext4_li_request_new()
3732 		elr->lr_next_group = start;  in ext4_li_request_new()
3740 	elr->lr_next_sched = jiffies + (prandom_u32() %  in ext4_li_request_new()
3742 	return elr;  in ext4_li_request_new()
3749 	struct ext4_li_request *elr = NULL;  in ext4_register_li_request()  local
3768 	elr = ext4_li_request_new(sb, first_not_zeroed);  in ext4_register_li_request()
3769 	if (!elr) {  in ext4_register_li_request()
3781 	list_add(&elr->lr_request, &ext4_li_info->li_request_list);  in ext4_register_li_request()
3784 	sbi->s_li_request = elr;  in ext4_register_li_request()
3790 	elr = NULL;  in ext4_register_li_request()
3800 		kfree(elr);  in ext4_register_li_request()