1 a0d146ed 2005-07-12 devnull #include "stdinc.h"
 2 a0d146ed 2005-07-12 devnull #include "dat.h"
 3 a0d146ed 2005-07-12 devnull #include "fns.h"
 4 a0d146ed 2005-07-12 devnull 
 5 a0d146ed 2005-07-12 devnull void
 6 a0d146ed 2005-07-12 devnull zeropart(Part *part, int blocksize)
 7 a0d146ed 2005-07-12 devnull {
 8 a0d146ed 2005-07-12 devnull 	ZBlock *b;
 9 a0d146ed 2005-07-12 devnull 	u64int addr;
10 a0d146ed 2005-07-12 devnull 	int w;
11 a0d146ed 2005-07-12 devnull 
12 27d28098 2007-04-21 devnull 	fprint(2, "clearing %s\n", part->name);
13 a0d146ed 2005-07-12 devnull 	b = alloczblock(MaxIoSize, 1, blocksize);
14 a0d146ed 2005-07-12 devnull 
15 a0d146ed 2005-07-12 devnull 	w = 0;
16 a0d146ed 2005-07-12 devnull 	for(addr = PartBlank; addr + MaxIoSize <= part->size; addr += MaxIoSize){
17 a0d146ed 2005-07-12 devnull 		if(writepart(part, addr, b->data, MaxIoSize) < 0)
18 a0d146ed 2005-07-12 devnull 			sysfatal("can't initialize %s, writing block %d failed: %r", part->name, w);
19 a0d146ed 2005-07-12 devnull 		w++;
20 a0d146ed 2005-07-12 devnull 	}
21 a0d146ed 2005-07-12 devnull 
22 a0d146ed 2005-07-12 devnull 	for(; addr + blocksize <= part->size; addr += blocksize)
23 a0d146ed 2005-07-12 devnull 		if(writepart(part, addr, b->data, blocksize) < 0)
24 a0d146ed 2005-07-12 devnull 			sysfatal("can't initialize %s: %r", part->name);
25 a0d146ed 2005-07-12 devnull 
26 e46cacb0 2007-04-27 devnull 	if(flushpart(part) < 0)
27 e46cacb0 2007-04-27 devnull 		sysfatal("can't flush writes to %s: %r", part->name);
28 e46cacb0 2007-04-27 devnull 
29 a0d146ed 2005-07-12 devnull 	freezblock(b);
30 a0d146ed 2005-07-12 devnull }