20060303a

1 files changed, 42 insertions, 0 deletions

diff --git a/libnandfs/markblockbad.c b/libnandfs/markblockbad.c
new file mode 100644
index 00000000..6414c8d2
--- /dev/null
+++ b/libnandfs/markblockbad.c
@@ -0,0 +1,42 @@
+#include "lib9.h"
+#include "logfs.h"
+#include "nandfs.h"
+#include "local.h"
+
+char *
+nandfsmarkabsblockbad(Nandfs *nandfs, long absblock)
+{
+	NandfsAuxiliary hdr;
+	int page;
+	int ppb;
+
+	memset(&hdr, 0xff, sizeof(hdr));
+	hdr.blockstatus = 0xf0;		// late failure
+
+	ppb = 1 << nandfs->ll.l2pagesperblock;
+	for (page = 0; page < ppb; page++) {
+		char *errmsg = (*nandfs->write)(nandfs->magic, &hdr, sizeof(hdr), nandfs->rawblocksize * absblock + page * NandfsFullSize + NandfsPageSize);
+		if (errmsg && strcmp(errmsg, Eio) != 0)
+			return errmsg;
+	}
+
+	return nil;
+}
+
+char *
+nandfsmarkblockbad(Nandfs *nandfs, long block)
+{
+	char *errmsg;
+	errmsg = nandfsmarkabsblockbad(nandfs, block + nandfs->baseblock);
+	if (errmsg)
+		return errmsg;
+
+	if (nandfs->blockdata) {
+		NandfsBlockData *d;
+		d = &nandfs->blockdata[block];
+		d->tag = LogfsTbad;
+	}
+
+	return nil;
+}
+