1 #include "stdinc.h"
2 #include "dat.h"
3 #include "fns.h"
4
5 void
zeropart(Part * part,int blocksize)6 zeropart(Part *part, int blocksize)
7 {
8 ZBlock *b;
9 u64int addr;
10 int w;
11
12 fprint(2, "clearing %s\n", part->name);
13 b = alloczblock(MaxIoSize, 1, blocksize);
14
15 w = 0;
16 for(addr = PartBlank; addr + MaxIoSize <= part->size; addr += MaxIoSize){
17 if(writepart(part, addr, b->data, MaxIoSize) < 0)
18 sysfatal("can't initialize %s, writing block %d failed: %r", part->name, w);
19 w++;
20 }
21
22 for(; addr + blocksize <= part->size; addr += blocksize)
23 if(writepart(part, addr, b->data, blocksize) < 0)
24 sysfatal("can't initialize %s: %r", part->name);
25
26 if(flushpart(part) < 0)
27 sysfatal("can't flush writes to %s: %r", part->name);
28
29 freezblock(b);
30 }
31