name: writeback_start
ID: 247
format:
	field:unsigned short common_type;	offset:0;	size:2;	signed:0;
	field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
	field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
	field:int common_pid;	offset:4;	size:4;	signed:1;

	field:char name[32];	offset:8;	size:32;	signed:0;
	field:long nr_pages;	offset:40;	size:8;	signed:1;
	field:dev_t sb_dev;	offset:48;	size:4;	signed:0;
	field:int sync_mode;	offset:52;	size:4;	signed:1;
	field:int for_kupdate;	offset:56;	size:4;	signed:1;
	field:int range_cyclic;	offset:60;	size:4;	signed:1;
	field:int for_background;	offset:64;	size:4;	signed:1;
	field:int reason;	offset:68;	size:4;	signed:1;
	field:__data_loc char[] cgroup;	offset:72;	size:4;	signed:0;

print fmt: "bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d kupdate=%d range_cyclic=%d background=%d reason=%s cgroup=%s", REC->name, ((unsigned int) ((REC->sb_dev) >> 20)), ((unsigned int) ((REC->sb_dev) & ((1U << 20) - 1))), REC->nr_pages, REC->sync_mode, REC->for_kupdate, REC->range_cyclic, REC->for_background, __print_symbolic(REC->reason, { 0, "background" }, { 1, "try_to_free_pages" }, { 2, "sync" }, { 3, "periodic" }, { 4, "laptop_timer" }, { 5, "free_more_memory" }, { 6, "fs_free_space" }, { 7, "forker_thread" }), __get_str(cgroup)