1 #include "logfsos.h"
2 #include "logfs.h"
3 #include "nandfs.h"
4 #include "local.h"
5
6 char *
nandfseraseblock(Nandfs * nandfs,long block,void ** llsavep,int * markedbad)7 nandfseraseblock(Nandfs *nandfs, long block, void **llsavep, int *markedbad)
8 {
9 NandfsBlockData *d;
10 char *errmsg;
11
12 if (markedbad)
13 *markedbad = 0;
14
15 errmsg = (*nandfs->erase)(nandfs->magic, nandfs->rawblocksize * (nandfs->baseblock + block));
16 if (errmsg) {
17 if (nandfs->blockdata) {
18 d = &nandfs->blockdata[block];
19 d->tag = LogfsTworse;
20 nandfs->worseblocks = 1;
21 }
22 if (strcmp(errmsg, Eio) != 0)
23 return errmsg;
24 if (markedbad) {
25 *markedbad = 1;
26 errmsg = nandfsmarkblockbad(nandfs, block);
27 if (strcmp(errmsg, Eio) != 0)
28 return errmsg;
29 return nil;
30 }
31 return errmsg;
32 }
33
34 if (nandfs->blockdata) {
35 ulong *llsave;
36 d = &nandfs->blockdata[block];
37 if (llsavep) {
38 llsave = nandfsrealloc(nil, sizeof(ulong));
39 if (llsave == nil)
40 return Enomem;
41 *llsave = d->nerase;
42 *llsavep = llsave;
43 }
44 d->tag = 0xff;
45 d->path = NandfsPathMask;
46 d->nerase = NandfsNeraseMask;
47 }
48 return nil;
49 }
50
51