1 #include "stdinc.h"
2 #include "dat.h"
3 #include "fns.h"
4 
5 void
6 zeropart(Part *part, int blocksize)
7 {
8 	ZBlock *b;
9 	u64int addr;
10 	int w;
11 
12 	fprint(2, "clearing the partition\n");
13 
14 	b = alloczblock(MaxIoSize, 1);
15 
16 	w = 0;
17 	for(addr = PartBlank; addr + MaxIoSize <= part->size; addr += MaxIoSize){
18 		if(writepart(part, addr, b->data, MaxIoSize) < 0)
19 			sysfatal("can't initialize %s, writing block %d failed: %r", part->name, w);
20 		w++;
21 	}
22 
23 	for(; addr + blocksize <= part->size; addr += blocksize)
24 		if(writepart(part, addr, b->data, blocksize) < 0)
25 			sysfatal("can't initialize %s: %r", part->name);
26 
27 	freezblock(b);
28 }